Commit Graph

613 Commits

Author SHA1 Message Date
Anson Huang
0d03f02926 clk: imx6sl: Use BIT(x) to avoid shifting signed 32-bit value by 31 bits
Use readl_relaxed() instead of __raw_readl(), and use BIT(x)
instead of (1 << X) to fix below build warning reported by kernel
test robot:

drivers/clk/imx/clk-imx6sl.c:149:49: warning: Shifting signed 32-bit
value by 31 bits is undefined behaviour [shiftTooManyBitsSigned]
     while (!(__raw_readl(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK))

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-08-22 12:37:18 +08:00
Stephen Boyd
1a91e318c0 Merge branches 'clk-fallthru', 'clk-ingenic', 'clk-tegra', 'clk-sirf' and 'clk-qoriq' into clk-next
- Add RTC related clks on Ingenic SoCs
 - Support USB PHY clks on Ingenic SoCs

* clk-fallthru:
  clk: davinci: Use fallthrough pseudo-keyword
  clk: imx: Use fallthrough pseudo-keyword

* clk-ingenic:
  clk: X1000: Add support for calculat REFCLK of USB PHY.
  clk: JZ4780: Reformat the code to align it.
  clk: JZ4780: Add functions for enable and disable USB PHY.
  clk: Ingenic: Add RTC related clocks for Ingenic SoCs.
  dt-bindings: clock: Add tabs to align code.
  dt-bindings: clock: Add RTC related clocks for Ingenic SoCs.

* clk-tegra:
  clk: tegra: pll: Improve PLLM enable-state detection

* clk-sirf:
  clk: clk-atlas6: fix return value check in atlas6_clk_init()

* clk-qoriq:
  clk: qoriq: add LS1021A core pll mux options
2020-08-03 15:07:08 -07:00
Gustavo A. R. Silva
d388e18f63 clk: imx: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727200922.GA2326@embeddedor
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-07-27 15:21:19 -07:00
Andrey Smirnov
018e430834 clk: imx: vf610: add CAAM clock
According to Vybrid Security RM, CCM_CCGR11[CG176] can be used to gate
CAAM ipg clock.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-imx@nxp.com
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-23 15:10:05 +08:00
Peng Fan
94ae59ac5d clk: imx8mp: add mu root clk
Add mu root clk for mu mailbox usage.

Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-06-23 15:10:05 +08:00
Peng Fan
b1657ad708 clk: imx: use imx8m_clk_hw_composite_bus for i.MX8M bus clk slice
Switch the bus clk use imx8m_clk_hw_composite_bus, then
we could avoid possible issue when setting mux of the clk.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-21 22:37:48 +08:00
Peng Fan
0e40198dc2 clk: imx: add imx8m_clk_hw_composite_bus
Introduce imx8m_clk_hw_composite_bus api for bus clk root slice usage.
Because the mux switch sequence issue, we could not reuse Peripheral
Clock Slice code, need use composite specific mux operation.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-21 22:37:48 +08:00
Peng Fan
f90b68d6c8 clk: imx: add mux ops for i.MX8M composite clk
The CORE/BUS root slice has following design, simplied graph:
The difference is core not have pre_div block.
A composite core/bus clk has 8 inputs for mux to select, saying clk[0-7].

It support target(smart) interface and normal interface. Target interface
is exported for programmer easy to configure ccm root. Normal interface
is also exported, but we not use it in our driver, because it will
introduce more complexity compared with target interface.

The normal interface simplified as below:
            SEL_A  GA
            +--+  +-+
            |  +->+ +------+
CLK[0-7]--->+  |  +-+      |
       |    |  |      +----v---+    +----+
       |    +--+      |pre_diva+---->    |  +---------+
       |              +--------+    |mux +--+post_div |
       |    +--+      |pre_divb+--->+    |  +---------+
       |    |  |      +----^---+    +----+
       +--->+  |  +-+      |
            |  +->+ +------+
            +--+  +-+
            SEL_B  GB

The mux in the upper pic is not the target interface MUX, target
interface MUX is hiding SEL_A and SEL_B. When you choose clk[0-7],
you are actually writing SEL_A or SEL_B depends on the internal
counter which will also control the internal "mux".

The target interface simplified as below which is used by Linux Kernel:
CLK[0-7]--->MUX-->Gate-->pre_div-->post_div

A requirement of the Target Interface's software is that the
target clock source is active, it means when setting SEL_A, the
current input clk to SEL_A must be active, same to SEL_B.

We touch target interface, but hardware logic actually also need
configure normal interface.

There will be system hang, when doing the following steps:
The initial state:
  SEL_A/SEL_B are both sourcing from clk0, the internal counter
  choose SEL_A.
1. switch mux from clk0 to clk1
   The hardware logic will choose SEL_B and configure SEL_B to clk1.
   SEL_A no changed.
2. gate off clk0
   Disable clk0, then the input to SEL_A is off.
3. swtich from clk1 to clk2
   The hardware logic will choose SEL_A and configure SEL_A to clk2,
   however the current SEL_A input clk0 is off, the system hang.

The solution to fix the issue is in step 1, write twice to
target interface MUX, it will make SEL_A/SEL_B both sources
from clk1, then no need to care about the state of clk0. And
finally system performs well.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-21 22:37:48 +08:00
Peng Fan
b737beddb3 clk: imx8m: migrate A53 clk root to use composite core
Migrate A53 clk root to use composite core clk type. It
will simplify code and make it easy to use composite
specific mux operation.

Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 09:27:04 +08:00
Peng Fan
8c83a8ff4d clk: imx8mp: use imx8m_clk_hw_composite_core to simplify code
Use imx8m_clk_hw_composite_core to simpliy clks that belong to
core clk slice.

Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 09:26:48 +08:00
Peng Fan
77f5d2d973 clk: imx8mp: Define gates for pll1/2 fixed dividers
Inspried from
commit e8688fe8df ("clk: imx8mn: Define gates for pll1/2 fixed dividers")

On imx8mp there are 9 fixed-factor dividers for SYS_PLL1 and SYS_PLL2
each with their own gate. Only one of these gates (the one "dividing" by
one) is currently defined and it's incorrectly set as the parent of all
the fixed-factor dividers.

Add the other 8 gates to the clock tree between sys_pll1/2_bypass and
the fixed dividers.

Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 09:26:45 +08:00
Peng Fan
dc6e21da34 clk: imx: imx8mp: fix pll mux bit
Same to i.MX8MN/i.MX8MM, pll BYPASS bit should be kept inside pll
driver for glitchless freq setting following spec. If exposing the
bit, that means pll driver and clk driver has two paths to touch
this bit, which is wrong.

So use EXT_BYPASS bit here.

Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 09:26:42 +08:00
Peng Fan
cccc464742 clk: imx8m: drop clk_hw_set_parent for A53
The parent settings have been moved to dtsi, we no need to
set parent here. And clk_hw_set_parent will trigger lockdep warning,
because this api not have prepare_lock.

Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 09:26:28 +08:00
Abel Vesa
01d5bea4d3 clk: imx: Add helpers for passing the device as argument
All the imx clocks that need to be registered by the audiomix need to
pass on the device so that the runtime PM support could work properly.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-29 10:01:09 +08:00
Abel Vesa
55a8b3cdff clk: imx: pll14xx: Add the device as argument when registering
In order to allow runtime PM, the device needs to be passed on
to the register function. Audiomix clock controller, used on
i.MX8MP and future platforms, registers a pll14xx and has runtime
PM support.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-29 10:00:42 +08:00
Abel Vesa
1e54afe9fc clk: imx: gate2: Allow single bit gating clock
Audiomix on i.MX8MP registers two gates that share the same enable count
but use the same bit to control the gate instead of two bits. By adding
the flag IMX_CLK_GATE2_SINGLE_BIT we allow the gate2 to use the generic
gate ops for enable, disable and is_enabled.
For the disable_unused, nothing happens if this flag is specified.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-29 10:00:05 +08:00
Anson Huang
9558b51ab7 clk: imx: clk-pllv3: Use readl_relaxed_poll_timeout() for PLL lock wait
Use readl_relaxed_poll_timeout() for PLL lock wait which can simplify the
code a lot.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-20 22:56:35 +08:00
Anson Huang
23aadcb9a8 clk: imx: clk-sscg-pll: Remove unnecessary blank lines
Remove many unnecessary blank lines for cleanup.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-20 22:39:24 +08:00
Peng Fan
b1fe0d0937 clk: imx: drop the dependency on ARM64 for i.MX8M
Moving to support aarch32 mode on aarch64 hardware, need to drop
the dependency on ARM64 to make the driver could be selected for
ARM32.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-14 21:37:23 +08:00
Peng Fan
260dab4478 clk: imx7ulp: make it easy to change ARM core clk
ARM clk could only source from divcore or hsrun_divcore.

Follow what we already used on i.MX7D and i.MX8M SoCs, use
imx_clk_hw_cpu API. When ARM core is running normaly,
whether divcore or hwrun_divcore will finally source
from SPLL_PFD0. However SPLL_PFD0 is marked with CLK_SET_GATE,
so we need to disable SPLL_PFD0, when configure the rate.
So add CORE and HSRUN_CORE virtual clk to make it easy to
configure the clk using imx_clk_hw_cpu API.

Since CORE and HSRUN_CORE already marked with CLK_IS_CRITICAL, no
need to set ARM as CLK_IS_CRITICAL. And when set the rate of ARM clk,
prograting it the parent with CLK_SET_RATE_PARENT will finally set
the SPLL_PFD0 clk.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-14 21:35:58 +08:00
Waibel Georg
d5b2b22558 clk: imx: imx6ul: change flexcan clock to support CiA bitrates
Setting a CAN bitrate of 800kbit/s fails with a bitrate error of 1.3% if the
flexcan module is clocked at 30MHz (CAN_CLK_ROOT). This patch changes the clock
frequency from 30MHz to 40MHz which allows to support all bitrates recommended
by CiA.

The patch sets CAN_CLK_SEL to 80MHz by changing its clock parent from
CLK_PLL3_60M to CLK_PLL3_80M. The post-divider CAN_CLK_PODF is set to /2 by
default which makes 40MHz CAN_CLK_ROOT from its parent CAN_CLK_SEL.

Background:
CAN in Automation document 102 (CiA102) recommends the CAN bitrates 10, 20, 50,
125, 250, 500, 800 and 1000kbit/s.

With the flexcan serial clock at 30MHz (original value) setting some common
bitrates ("ip link set canX type can bitrate <bitrate>") gives the following
results:
requested value / actually set value
5000: bitrate 5000 sample-point 0.708
10000: bitrate 10000 sample-point 0.866
20000: bitrate 20000 sample-point 0.866
40000: bitrate 40000 sample-point 0.866
50000: bitrate 50000 sample-point 0.866
80000: bitrate 80000 sample-point 0.866
100000: bitrate 100000 sample-point 0.866
125000: bitrate 125000 sample-point 0.875
250000: bitrate 250000 sample-point 0.866
400000: bitrate 400000 sample-point 0.866
500000: bitrate 500000 sample-point 0.866
666666: bitrate 666666 sample-point 0.800
800000: bitrate 789473 sample-point 0.789 !!!bitrate error 1.3%
1000000: bitrate 1000000 sample-point 0.733

With the flexcan serial clock at 40MHz (new value) we get this:
5000: no more possible
10000: bitrate 10000 sample-point 0.875
20000: bitrate 20000 sample-point 0.875
40000: bitrate 40000 sample-point 0.850
50000: bitrate 50000 sample-point 0.875
80000: bitrate 80000 sample-point 0.850
100000: bitrate 100000 sample-point 0.875
125000: bitrate 125000 sample-point 0.875
250000: bitrate 250000 sample-point 0.875
400000: bitrate 400000 sample-point 0.850
500000: bitrate 500000 sample-point 0.875
666666: bitrate 666666 sample-point 0.800
800000: bitrate 800000 sample-point 0.800
1000000: bitrate 1000000 sample-point 0.750

A drawback of the modification is that 5kbit/s is no more supported.

Setting the flexcan serial clock to 60MHz or 80MHz would produce similar
results but with losing even more bitrates at the lower end.

Changing the flexcan serial clock to 40MHz might apply for other SoCs
using the flaxcan module as well (e.g. imx6q/d/s..). But since I don't
have such hardware to test I did not add this to the patch.

Signed-off-by: Georg Waibel <georg.waibel@wiedemann-group.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-04-13 22:22:33 +08:00
Linus Torvalds
3476195651 There's not much to see in the core framework this time around. Instead the
majority of the diff is the normal collection of driver additions for new SoCs
 and non-critical clk data fixes and updates. The framework must be middle aged.
 
 The two biggest directories in the diffstat show that the Qualcomm and Unisoc
 support added a handful of big drivers for new SoCs but that's not really the
 whole story because those new drivers tend to add large numbers of lines of clk
 data. There's a handful of AT91 clk drivers added this time around too and a
 bunch of improvements to drivers like the i.MX driver. All around lots of
 updates and fixes in various clk drivers which is good to see.
 
 The core framework has only one real major change which has been baking in next
 for the past couple months. It fixes the framework so that it stops caching a
 clk's phase when the phase clk_op returns an error. Before this change we would
 consider some negative errno as a phase and that just doesn't make sense.
 
 Core:
  - Don't show clk phase when it is invalid
 
 New Drivers:
  - Add support for Unisoc SC9863A clks
  - Qualcomm SM8250 RPMh and MSM8976 RPM clks
  - Qualcomm SM8250 Global Clock Controller (GCC) support
  - Qualcomm SC7180 Modem Clock Controller (MSS CC) support
  - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs
  - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and at91sam9g45 SoCs
 
 Updates:
  - GPU GX GDSC support on Qualcomm sc7180
  - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers
  - A series from Anson to convert i.MX8 clock bindings to json-schema
  - Update i.MX pll14xx driver to include new frequency entries for pll1443x table,
    and return error for invalid PLL type
  - Add missing of_node_put() call for a number of i.MX clock drivers
  - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already
    have the flag on its child cpu clock
  - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL
    via CORE_SEL slice, and source from A53 CCM clk root when we need to
    change ARM PLL frequency. Thus, we can support core running above
    1GHz safely
  - Update i.MX pfdv2 driver to check zero rate and use determine_rate for
    getting the best rate
  - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for imx7d
  - Remove PMC clks from Tegra clk driver
  - Improved clock/reset handling for the Renesas R-Car USB2 Clock Selector
  - Conversion to json-schema of the Renesas CPG/MSSR DT bindings
  - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3
  - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and M3-N
  - Update Amlogic audio clock gate hierarchy for meson8 and gxbb
  - Update Amlogic g12a spicc clock sources
  - Support for Ingenic X1000 TCU clks
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "There's not much to see in the core framework this time around.
  Instead the majority of the diff is the normal collection of driver
  additions for new SoCs and non-critical clk data fixes and updates.
  The framework must be middle aged.

  The two biggest directories in the diffstat show that the Qualcomm and
  Unisoc support added a handful of big drivers for new SoCs but that's
  not really the whole story because those new drivers tend to add large
  numbers of lines of clk data. There's a handful of AT91 clk drivers
  added this time around too and a bunch of improvements to drivers like
  the i.MX driver. All around lots of updates and fixes in various clk
  drivers which is good to see.

  The core framework has only one real major change which has been
  baking in next for the past couple months. It fixes the framework so
  that it stops caching a clk's phase when the phase clk_op returns an
  error. Before this change we would consider some negative errno as a
  phase and that just doesn't make sense.

  Core:
   - Don't show clk phase when it is invalid

  New Drivers:
   - Add support for Unisoc SC9863A clks
   - Qualcomm SM8250 RPMh and MSM8976 RPM clks
   - Qualcomm SM8250 Global Clock Controller (GCC) support
   - Qualcomm SC7180 Modem Clock Controller (MSS CC) support
   - EHRPWM's TimeBase clock(TBCLK) for TI AM654 SoCs
   - Support PMC clks on at91sam9n12, at91rm9200, sama5d3, and
     at91sam9g45 SoCs

  Updates:
   - GPU GX GDSC support on Qualcomm sc7180
   - Fixes and improvements for the Marvell MMP2/MMP3 SoC clk drivers
   - A series from Anson to convert i.MX8 clock bindings to json-schema
   - Update i.MX pll14xx driver to include new frequency entries for
     pll1443x table, and return error for invalid PLL type
   - Add missing of_node_put() call for a number of i.MX clock drivers
   - Drop flag CLK_IS_CRITICAL from 'A53_CORE' mux clock, as we already
     have the flag on its child cpu clock
   - Fix a53 cpu clock for i.MX8 drivers to get it source from ARM PLL
     via CORE_SEL slice, and source from A53 CCM clk root when we need
     to change ARM PLL frequency. Thus, we can support core running
     above 1GHz safely
   - Update i.MX pfdv2 driver to check zero rate and use determine_rate
     for getting the best rate
   - Add CLKO2 for imx8mm, SNVS clock for imx8mn, and PXP clock for
     imx7d
   - Remove PMC clks from Tegra clk driver
   - Improved clock/reset handling for the Renesas R-Car USB2 Clock
     Selector
   - Conversion to json-schema of the Renesas CPG/MSSR DT bindings
   - Add Crypto clocks on Renesas R-Car M3-W/W+, M3-N, E3, and D3
   - Add RPC (QSPI/HyperFLASH) clocks on Renesas R-Car H3, M3-W/W+, and
     M3-N
   - Update Amlogic audio clock gate hierarchy for meson8 and gxbb
   - Update Amlogic g12a spicc clock sources
   - Support for Ingenic X1000 TCU clks"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (146 commits)
  clk: sprd: fix to get a correct ibias of pll
  dt-bindings: imx8mm-clock: Fix the file path
  dt-bindings: imx8mq-clock: Fix the file path
  clk: qcom: rpmh: Drop unnecessary semicolons
  clk: qcom: rpmh: Simplify clk_rpmh_bcm_send_cmd()
  clk: tegra: Use NULL for pointer initialization
  clk: sprd: add clocks support for SC9863A
  clk: sprd: support to get regmap from parent node
  clk: sprd: Add macros for referencing parents without strings
  clk: sprd: Add dt-bindings include file for SC9863A
  dt-bindings: clk: sprd: add bindings for sc9863a clock controller
  dt-bindings: clk: sprd: rename the common file name sprd.txt to SoC specific
  clk: sprd: add gate for pll clocks
  MAINTAINERS: dt: update reference for arm-integrator.txt
  clk: mmp2: Fix bit masks for LCDC I/O and pixel clocks
  clk: mmp2: Add clock for fifth SD HCI on MMP3
  dt-bindings: marvell,mmp2: Add clock id for the fifth SD HCI on MMP3
  clk: mmp2: Add clocks for the thermal sensors
  dt-bindings: marvell,mmp2: Add clock ids for the thermal sensors
  clk: mmp2: add the GPU clocks
  ...
2020-04-05 10:43:32 -07:00
Linus Torvalds
854e80bcfd ARM: devicetree updates for v5.7
Most of the commits are for additional hardware support and minor fixes
 for existing machines for all the usual platforms: qcom, amlogic, at91,
 gemini, mediatek, ti, socfpga, i.mx, layerscape, uniphier, rockchip,
 exynos, ux500, mvebu, tegra, stm32, renesas, sunxi, broadcom, omap,
 and versatile.
 
 The conversion of binding files to machine-readable yaml format
 continues, along with fixes found during the validation.
 Andre Przywara takes over maintainership for the old Calxeda Highbank
 platform and provides a number of updates.
 
 The OMAP2+ platforms see a continued move from platform data into
 dts files, for many devices that relied on a mix of auxiliary data
 in addition to the DT description
 
 A moderate number of new SoCs and machines are added, here is a full
 list:
 
 - Two new Qualcomm SoCs with their evaluation boards: Snapdragon 865
   (SM8250) is the current high-end phone chip, and IPQ6018 is a new
   WiFi-6 router chip.
 
 - Mediatek MT8516 application processor SoC for voice assistants, along
   with the "pumpkin" development board
 
 - NXP i.MX8M Plus SoC, a variant of the popular i.MX8M, along with an
   evaluation board.
 
 - Kontron "sl28" board family based on NXP LS1028A
 
 - Eleven variations of the new i.MX6 TechNexion Pico board, combining
   the "dwarf", "hobbit", "nymph" and "pi" baseboards with i.MX6/i.MX7
   SoM carriers
 
 - Three additional variants of the Toradex Colibri board family, all
   based on versions of the NXP i.MX7.
 
 - The Pinebook Pro laptop based on Rockchip RK3399
 
 - Samsung S7710 Galaxy Xcover 2, a 2013 vintage Android phone based on
   the ST-Ericsson u8500 platform
 
 - DH Electronics DHCOM SoM and PDK2 rev. 400 carrier based on
   STMicroelectronics stm32mp157
 
 - Renesas M3ULCB starter kit for R-Car M3-W+
 
 - Hoperun HiHope development board with Renesas RZ/G2M
 
 - Pine64 PineTab tablet and PinePhone phone, both based on Allwinner A64
 
 - Linutronix Testbox v2 for the Lamobo R1 router, based on Allwinner A20
 
 - PocketBook Touch Lux 3 ebook reader, based on Allwinner A13
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-dt-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM devicetree updates from Arnd Bergmann:
 "Most of the commits are for additional hardware support and minor
  fixes for existing machines for all the usual platforms: qcom,
  amlogic, at91, gemini, mediatek, ti, socfpga, i.mx, layerscape,
  uniphier, rockchip, exynos, ux500, mvebu, tegra, stm32, renesas,
  sunxi, broadcom, omap, and versatile.

  The conversion of binding files to machine-readable yaml format
  continues, along with fixes found during the validation. Andre
  Przywara takes over maintainership for the old Calxeda Highbank
  platform and provides a number of updates.

  The OMAP2+ platforms see a continued move from platform data into dts
  files, for many devices that relied on a mix of auxiliary data in
  addition to the DT description

  A moderate number of new SoCs and machines are added, here is a full
  list:

   - Two new Qualcomm SoCs with their evaluation boards: Snapdragon 865
     (SM8250) is the current high-end phone chip, and IPQ6018 is a new
     WiFi-6 router chip.

   - Mediatek MT8516 application processor SoC for voice assistants,
     along with the "pumpkin" development board

   - NXP i.MX8M Plus SoC, a variant of the popular i.MX8M, along with an
     evaluation board.

   - Kontron "sl28" board family based on NXP LS1028A

   - Eleven variations of the new i.MX6 TechNexion Pico board, combining
     the "dwarf", "hobbit", "nymph" and "pi" baseboards with i.MX6/i.MX7
     SoM carriers

   - Three additional variants of the Toradex Colibri board family, all
     based on versions of the NXP i.MX7.

   - The Pinebook Pro laptop based on Rockchip RK3399

   - Samsung S7710 Galaxy Xcover 2, a 2013 vintage Android phone based
     on the ST-Ericsson u8500 platform

   - DH Electronics DHCOM SoM and PDK2 rev. 400 carrier based on
     STMicroelectronics stm32mp157

   - Renesas M3ULCB starter kit for R-Car M3-W+

   - Hoperun HiHope development board with Renesas RZ/G2M

   - Pine64 PineTab tablet and PinePhone phone, both based on Allwinner
     A64

   - Linutronix Testbox v2 for the Lamobo R1 router, based on Allwinner
     A20

   - PocketBook Touch Lux 3 ebook reader, based on Allwinner A13"

* tag 'arm-dt-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (520 commits)
  ARM: dts: ux500: Fix missing node renames
  arm64: dts: Revert "specify console via command line"
  MAINTAINERS: Update Calxeda Highbank maintainership
  arm: dts: calxeda: Group port-phys and sgpio-gpio items
  arm: dts: calxeda: Fix interrupt grouping
  arm: dts: calxeda: Provide UART clock
  arm: dts: calxeda: Basic DT file fixes
  arm64: dts: specify console via command line
  ARM: dts: at91: sama5d27_wlsom1_ek: add USB device node
  ARM: dts: gemini: Add thermal zone to DIR-685
  ARM: dts: gemini: Rename IDE nodes
  ARM: socfpga: arria10: Add ptp_ref clock to ethernet nodes
  arm64: dts: ti: k3-j721e-mcu: add scm node and phy-gmii-sel nodes
  arm64: dts: ti: k3-am65-mcu: add phy-gmii-sel node
  arm64: dts: ti: k3-am65-mcu: Add DMA entries for ADC
  arm64: dts: ti: k3-am65-main: Add DMA entries for main_spi0
  arm64: dts: ti: k3-j721e-mcu-wakeup: Add DMA entries for ADC
  arm64: dts: ti: k3-am65: Add clocks to dwc3 nodes
  arm64: dts: meson-g12b-odroid-n2: add SPIFC controller node
  arm64: dts: khadas-vim3: add SPIFC controller node
  ...
2020-04-03 15:22:05 -07:00
Leonard Crestez
8400ab8896 clk: imx: Align imx sc clock parent msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: 666aed2d13 ("clk: imx: scu: add set parent support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/aad021e432b3062c142973d09b766656eec18fde.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:46:05 -07:00
Leonard Crestez
a0ae04a256 clk: imx: Align imx sc clock msg structs to 4
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y.

Fix by marking with __aligned(4).

Fixes: fe37b48204 ("clk: imx: add scu clock common part")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/10e97a04980d933b2cfecb6b124bf9046b6e4f16.1582216144.git.leonard.crestez@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25 18:45:59 -07:00
Abel Vesa
b5881e8019 clk: imx: clk-gate2: Pass the device to the register function
The device needs to be passed on to the clk_hw_register.

Fixes: 1f9aec9662 ("clk: imx: clk-gate2: Switch to clk_hw based API")
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-16 09:38:30 +08:00
Laurent Pinchart
4ae9afbaae clk: imx7d: Add PXP clock
The PXP has a single CCGR clock gate, gating both the IPG_CLK_ROOT and
the MAIN_AXI_CLK_ROOT. Add a single clock to cover both.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-16 08:56:59 +08:00
Fugang Duan
857c9d31f5 clk: imx8mp: Correct the enet_qos parent clock
enet_qos is for eqos tsn AXI bus clock whose clock source is from
ccm_enet_axi_clk_root, and controlled by CCM_CCGR59(offset 0x43b0)
and CCM_CCGR64(offset 0x4400), so correct enet_qos root clock's
parent clock to sim_enet.

Fixes: 9c140d9926 ("clk: imx: Add support for i.MX8MP clock driver")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-16 08:18:20 +08:00
Anson Huang
78ef3c9ecf clk: imx8mp: Correct IMX8MP_CLK_HDMI_AXI clock parent
IMX8MP_CLK_HDMI_AXI should be from imx8mp_media_axi_sels instead
of imx8mp_media_apb_sels, fix it.

Fixes: 9c140d9926 ("clk: imx: Add support for i.MX8MP clock driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-16 08:18:20 +08:00
Anson Huang
b4fc6f72dd clk: imx8mq: A53 core clock no need to be critical
'A53_CORE' is just a mux and no need to be critical, being critical
will cause its parent clock always ON which does NOT make sense,
to make sure CPU's hardware clock source NOT being disabled during
clock tree setup, need to move the 'A53_SRC'/'A53_CORE' reparent
operations to after critical clock 'ARM_CLK' setup finished.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-11 15:12:02 +08:00
Anson Huang
0d77abc4fc clk: imx8mp: A53 core clock no need to be critical
'A53_CORE' is just a mux and no need to be critical, being critical
will cause its parent clock always ON which does NOT make sense,
to make sure CPU's hardware clock source NOT being disabled during
clock tree setup, need to move the 'A53_SRC'/'A53_CORE' reparent
operations to after critical clock 'ARM_CLK' setup finished.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-11 15:11:59 +08:00
Anson Huang
81aa844bb5 clk: imx8mm: A53 core clock no need to be critical
'A53_CORE' is just a mux and no need to be critical, being critical
will cause its parent clock always ON which does NOT make sense,
to make sure CPU's hardware clock source NOT being disabled during
clock tree setup, need to move the 'A53_SRC'/'A53_CORE' reparent
operations to after critical clock 'ARM_CLK' setup finished.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-11 15:11:57 +08:00
Anson Huang
e20703f00b clk: imx8mn: A53 core clock no need to be critical
'A53_CORE' is just a mux and no need to be critical, being critical
will cause its parent clock always ON which does NOT make sense,
to make sure CPU's hardware clock source NOT being disabled during
clock tree setup, need to move the 'A53_SRC'/'A53_CORE' reparent
operations to after critical clock 'ARM_CLK' setup finished.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-11 15:11:43 +08:00
Peng Fan
d678d83c58 clk: imx: pllv4: use prepare/unprepare
It is not good to use enable/disable for PLLv4 which needs time to
lock, because enable/disable is expected to be able run in
interrupt context. So use prepare/unprepare.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-10 14:02:16 +08:00
Peng Fan
c88a4c797a clk: imx: pfdv2: determine best parent rate
pfdv2 is only used in i.MX7ULP. To get best pfd output, the i.MX7ULP
Datasheet defines two best PLL rate and pfd frac.

Per Datasheel
All PLLs on i.MX 7ULP either have VCO base frequency of
480 MHz or 528 MHz. So when determine best rate, we also
determine best parent rate which could match the requirement.

For some reason the current parent might not be 480MHz or 528MHz,
so we still take current parent rate as a choice.

And we also enable flag CLK_SET_RATE_PARENT to let parent rate
to be configured.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-10 14:02:02 +08:00
Peng Fan
8ffe9c7bb9 clk: imx: pfdv2: switch to use determine_rate
Per clk_ops, compared with round_rate, determine_rate could optionally
support the parent clock that should be used to provide the clock rate.

In this patch, the parent clock is just parent->rate as round_rate.

The following patch will calculate the best parent clock.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-10 14:01:52 +08:00
Anson Huang
28b2f82e03 clk: imx: Fix division by zero warning on pfdv2
Fix below division by zero warning:

[    3.176443] Division by zero in kernel.
[    3.181809] CPU: 0 PID: 88 Comm: kworker/0:2 Not tainted 5.3.0-rc2-next-20190730-63758-ge08da51-dirty #124
[    3.191817] Hardware name: Freescale i.MX7ULP (Device Tree)
[    3.197821] Workqueue: events dbs_work_handler
[    3.202849] [<c01127d8>] (unwind_backtrace) from [<c010cd80>] (show_stack+0x10/0x14)
[    3.211058] [<c010cd80>] (show_stack) from [<c0c77e68>] (dump_stack+0xd8/0x110)
[    3.218820] [<c0c77e68>] (dump_stack) from [<c0c753c0>] (Ldiv0_64+0x8/0x18)
[    3.226263] [<c0c753c0>] (Ldiv0_64) from [<c05984b4>] (clk_pfdv2_set_rate+0x54/0xac)
[    3.234487] [<c05984b4>] (clk_pfdv2_set_rate) from [<c059192c>] (clk_change_rate+0x1a4/0x698)
[    3.243468] [<c059192c>] (clk_change_rate) from [<c0591a08>] (clk_change_rate+0x280/0x698)
[    3.252180] [<c0591a08>] (clk_change_rate) from [<c0591fc0>] (clk_core_set_rate_nolock+0x1a0/0x278)
[    3.261679] [<c0591fc0>] (clk_core_set_rate_nolock) from [<c05920c8>] (clk_set_rate+0x30/0x64)
[    3.270743] [<c05920c8>] (clk_set_rate) from [<c089cb88>] (imx7ulp_set_target+0x184/0x2a4)
[    3.279501] [<c089cb88>] (imx7ulp_set_target) from [<c0896358>] (__cpufreq_driver_target+0x188/0x514)
[    3.289196] [<c0896358>] (__cpufreq_driver_target) from [<c0899b0c>] (od_dbs_update+0x130/0x15c)
[    3.298438] [<c0899b0c>] (od_dbs_update) from [<c089a5d0>] (dbs_work_handler+0x2c/0x5c)
[    3.306914] [<c089a5d0>] (dbs_work_handler) from [<c0156858>] (process_one_work+0x2ac/0x704)
[    3.315826] [<c0156858>] (process_one_work) from [<c0156cdc>] (worker_thread+0x2c/0x574)
[    3.324404] [<c0156cdc>] (worker_thread) from [<c015cfe8>] (kthread+0x134/0x148)
[    3.332278] [<c015cfe8>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
[    3.339858] Exception stack(0xe82d5fb0 to 0xe82d5ff8)
[    3.345314] 5fa0:                                     00000000 00000000 00000000 00000000
[    3.353926] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    3.362519] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-03-10 13:53:07 +08:00
Anson Huang
eeca5721ba clk: imx: clk-sscg-pll: Drop unnecessary initialization
No need to initialize 'ret' in many functions, as it will get
the return value from function call, so remove the initializtion
of 'ret'.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:49:25 +08:00
Anson Huang
530cf8d49f clk: imx: pll14xx: Return error if pll type is invalid
When pll type is invalid, ONLY output error message is NOT enough,
should return error immediately.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:41:13 +08:00
Peng Fan
7ab2272101 clk: imx: imx8mp: fix a53 cpu clock
The A53 CCM clk root only accepts input up to 1GHz, CCM A53 root
signoff timing is 1Ghz, however the A53 core which sources from CCM
root could run above 1GHz which voilates the CCM.

There is a CORE_SEL slice before A53 core, we need configure the
CORE_SEL slice source from ARM PLL, not A53 CCM clk root.

The A53 CCM clk root should only be used when need to change ARM PLL
frequency.

Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out.
Configure a53 ccm root sources from 800MHz sys pll
Configure a53 core sources from arm_pll_out
Mark arm_a53_core as critical clk

Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:39:56 +08:00
Peng Fan
c69def8898 clk: imx: imx8mn: fix a53 cpu clock
The A53 CCM clk root only accepts input up to 1GHz, CCM A53 root
signoff timing is 1Ghz, however the A53 core which sources from CCM
root could run above 1GHz which voilates the CCM.

There is a CORE_SEL slice before A53 core, we need configure the
CORE_SEL slice source from ARM PLL, not A53 CCM clk root.

The A53 CCM clk root should only be used when need to change ARM PLL
frequency.

Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out.
Configure a53 ccm root sources from 800MHz sys pll
Configure a53 core sources from arm_pll_out
Mark arm_a53_core as critical clk.

Fixes: 96d6392b54 ("clk: imx: Add support for i.MX8MN clock driver")
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:39:56 +08:00
Peng Fan
d3b70cd87e clk: imx: imx8mm: fix a53 cpu clock
The A53 CCM clk root only accepts input up to 1GHz, CCM A53 root
signoff timing is 1Ghz, however the A53 core which sources from CCM
root could run above 1GHz which voilates the CCM.

There is a CORE_SEL slice before A53 core, we need configure the
CORE_SEL slice source from ARM PLL, not A53 CCM clk root.

The A53 CCM clk root should only be used when need to change ARM PLL
frequency.

Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out.
Configure a53 ccm root sources from 800MHz sys pll
Configure a53 core sources from arm_pll_out
Mark arm_a53_core as critical clock

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:39:56 +08:00
Peng Fan
d6fb02f054 clk: imx: imx8mq: fix a53 cpu clock
The A53 CCM clk root only accepts input up to 1GHz, CCM A53 root
signoff timing is 1Ghz, however the A53 core which sources from CCM
root could run above 1GHz which violates the CCM.

There is a CORE_SEL slice before A53 core, we need to configure the
CORE_SEL slice source from ARM PLL, not A53 CCM clk root.

The A53 CCM clk root should only be used when need to change ARM PLL
frequency.

Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out.
Configure a53 ccm root sources from 800MHz sys pll
Configure a53 core sources from arm_pll_out
Mark arm_a53_core as critical clock

Fixes: db27e40b27 ("clk: imx8mq: Add the missing ARM clock")
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 15:39:56 +08:00
Anson Huang
c267bd443f clk: imx8mp: Rename the IMX8MP_CLK_HDMI_27M clock
On i.MX8MP, internal HDMI 27M clock is actually 24MHz, so rename
the IMX8MP_CLK_HDMI_27M to IMX8MP_CLK_HDMI_24M.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-24 10:08:36 +08:00
Anson Huang
6b2d0cffee clk: imx8mn: Remove unused includes
There is nothing in use from init.h/of.h, remove them.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-19 10:19:34 +08:00
Anson Huang
2b507025e4 clk: imx8mm: Remove unused includes
There is nothing in use from init.h/of.h, remove them.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-19 10:19:31 +08:00
Anson Huang
64bee9c6cd clk: imx8mp: Include slab.h instead of clkdev.h
slab.h is necessary and included indirectly by clkdev.h,
actually, there is nothing in use from clkdev.h, so just
include slab.h instead of clkdev.h.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-19 10:19:13 +08:00
Anson Huang
680fbce528 clk: imx8mp: Add missing of_node_put()
After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:37:54 +08:00
Anson Huang
d93171b54c clk: imx8mn: Add missing of_node_put()
After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:37:51 +08:00
Anson Huang
5062d46e26 clk: imx8mm: Add missing of_node_put()
After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:37:49 +08:00
Anson Huang
cb5ae504f2 clk: imx8mq: Add missing of_node_put()
After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:37:46 +08:00
Anson Huang
8b1a3c0ba9 clk: imx6sl: Add missing of_node_put()
After finishing using device node got from of_find_compatible_node(),
of_node_put() needs to be called.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:37:21 +08:00
Anson Huang
836b251332 clk: imx7ulp: Include clk-provider.h instead of clk.h
The i.MX7ULP clock driver is provider, NOT consumer, so clk-provider.h
should be used instead of clk.h.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:33:37 +08:00
Anson Huang
79ccef698a clk: imx: drop redundant initialization
No need to initialize flags as 0, remove the initialization.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:32:32 +08:00
Anson Huang
f95d58981f clk: imx: Include clk-provider.h instead of clk.h for i.MX8M SoCs clock driver
The i.MX8M SoCs clock driver are provider, NOT consumer, so clk-provider.h
should be used instead of clk.h.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 14:26:32 +08:00
Fabio Estevam
9c07ae6983 clk: imx8mm: Add CLKO2 support
Add CLKO2 support, which is useful for debugging purposes.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 13:49:38 +08:00
Fabio Estevam
bcacd6f7c9 clk: imx8mm: Fix the CLKO1 source select list
The CLKO1 clock source select list is the following as per the i.MX8MM
Reference Manual (put in increasing order):

000 - 24M_REF_CLK
001 - SYSTEM_PLL1_CLK
010 - None
011 - SYSTEM_PLL1_DIV4
100 - AUDIO_PLL2_CLK
101 - SYSTEM_PLL2_DIV2
110 - VPU_PLL_CLK
111 - SYSTEM_PLL1_DIV10

Fix it accordingly.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-17 13:39:05 +08:00
Peng Fan
33db2ce73e clk: imx: imx8mn: use imx8m_clk_hw_composite_core
Use imx8m_clk_hw_composite_core to simplify code.

Add new definitions, and X_SRC/CG/DIV will be alias to the new
definitions for backwards compatibility

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-14 10:49:41 +08:00
Peng Fan
811e4171d0 clk: imx: imx8mm: use imx8m_clk_hw_composite_core
Use imx8m_clk_hw_composite_core to simplify code.

Add new definitions, and X_SRC/CG/DIV will be alias to the new
definitions for backwards compatibility

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-14 10:49:38 +08:00
Peng Fan
7a8d3b90bd clk: imx: imx8mq: use imx8m_clk_hw_composite_core
Use imx8m_clk_hw_composite_core to simplify code.

Add new definitions, and X_SRC/CG/DIV will be alias to the new
definitions for backwards compatibility

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-14 10:49:35 +08:00
Peng Fan
62668b68dc clk: imx: composite-8m: add imx8m_clk_hw_composite_core
There are several clock slices, current composite code
only support bus/ip clock slices, it could not support core
slice.

So introduce a new API imx8m_clk_hw_composite_core to support
core slice. To core slice, post divider with 3 bits width and
no pre divider. Other fields are same as bus/ip slices.

Add a flag IMX_COMPOSITE_CORE for the usecase.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-14 10:49:18 +08:00
Peng Fan
14875e57d8 clk: imx: imx8mp: add ocotp root clk
Add ocotp root clk, then when using nvmem to read fuse, clk
could be managed.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-14 09:50:16 +08:00
Anson Huang
57795654fb clk: imx: pll14xx: Add new frequency entries for pll1443x table
Add new frequency entries to pll1443x table to meet different
display settings requirement.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-13 11:08:30 +08:00
Horia Geantă
16e71d4da7 clk: imx8mn: add SNVS clock to clock tree
i.mx8mn has support for clock gating the snvs module.
Add it into clock tree so that rtc-snvs driver could use it.

Note this will also be required in the snvs_pwrkey driver,
once support for clock management will be added.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-13 11:08:30 +08:00
Stephen Boyd
db865ee447 Merge branches 'clk-imx', 'clk-ti', 'clk-xilinx', 'clk-nvidia', 'clk-qcom', 'clk-freescale' and 'clk-qoriq' into clk-next
- Support for Xilinx Versal platform clks
 - Display clk controller on qcom sc7180
 - Video clk controller on qcom sc7180
 - Graphics clk controller on qcom sc7180
 - CPU PLLs for qcom msm8916
 - Fixes for clk controllers on qcom msm8998 SoCs
 - Move qcom msm8974 gfx3d clk to RPM control
 - Display port clk support on qcom sdm845 SoCs
 - Global clk controller on qcom ipq6018
 - Adjust composite clk to new way of describing clk parents
 - Add a driver for BCLK of Freescale SAI cores

* clk-imx: (32 commits)
  clk: imx: Add support for i.MX8MP clock driver
  dt-bindings: imx: Add clock binding doc for i.MX8MP
  clk: imx: gate4: Switch imx_clk_gate4_flags() to clk_hw based API
  clk: imx: imx8mq: Switch to clk_hw based API
  clk: imx: imx8mm: Switch to clk_hw based API
  clk: imx: imx8mn: Switch to clk_hw based API
  clk: imx: Remove __init for imx_obtain_fixed_clk_hw() API
  clk: imx: gate3: Switch to clk_hw based API
  clk: imx: add hw API imx_clk_hw_mux2_flags
  clk: imx: add imx_unregister_hw_clocks
  clk: imx: clk-composite-8m: Switch to clk_hw based API
  clk: imx: clk-pll14xx: Switch to clk_hw based API
  clk: imx7up: Rename the clks to hws
  clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
  clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
  clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
  clk: imx: Rename sccg and frac pll register to suggest clk_hw
  clk: imx: imx7ulp composite: Rename to show is clk_hw based
  clk: imx: pllv2: Switch to clk_hw based API
  clk: imx: pllv1: Switch to clk_hw based API
  ...

* clk-ti:
  clk: ti: clkctrl: Fix hidden dependency to node name
  clk: ti: add clkctrl data dra7 sgx
  clk: ti: omap5: Add missing AESS clock
  clk: ti: dra7: fix parent for gmac_clkctrl
  clk: ti: dra7: add vpe clkctrl data
  clk: ti: dra7: add cam clkctrl data
  dt-bindings: clock: Move ti-dra7-atl.h to dt-bindings/clock

* clk-xilinx:
  clk: zynqmp: Add support for clock with CLK_DIVIDER_POWER_OF_TWO flag
  clk: zynqmp: Fix divider calculation
  clk: zynqmp: Add support for get max divider
  clk: zynqmp: Warn user if clock user are more than allowed
  clk: zynqmp: Extend driver for versal
  dt-bindings: clock: Add bindings for versal clock driver

* clk-nvidia:
  clk: tegra20/30: Explicitly set parent clock for Video Decoder
  clk: tegra20/30: Don't pre-initialize displays parent clock
  clk: tegra: divider: Check UART's divider enable-bit state on rate's recalculation
  clk: tegra: clk-dfll: Remove call to pm_runtime_irq_safe()
  clk: tegra: Mark fuse clock as critical

* clk-qcom: (35 commits)
  clk: qcom: rpmh: Sort OF match table
  dt-bindings: fix warnings in validation of qcom,gcc.yaml
  dt-binding: fix compilation error of the example in qcom,gcc.yaml
  clk: qcom: Add ipq6018 Global Clock Controller support
  clk: qcom: Add DT bindings for ipq6018 gcc clock controller
  clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks
  clk: qcom: rpmh: Add IPA clock for SC7180
  clk: qcom: rpmh: skip undefined clocks when registering
  clk: qcom: Add video clock controller driver for SC7180
  dt-bindings: clock: Introduce SC7180 QCOM Video clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM VIDEOCC clock bindings
  clk: qcom: Add graphics clock controller driver for SC7180
  dt-bindings: clock: Introduce SC7180 QCOM Graphics clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings
  clk: qcom: apcs-msm8916: use clk_parent_data to specify the parent
  clk: qcom: Add display clock controller driver for SC7180
  dt-bindings: clock: Introduce QCOM sc7180 display clock bindings
  dt-bindings: clock: Add YAML schemas for the QCOM DISPCC clock bindings
  clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration
  clk: qcom: alpha-pll: Remove useless read from set rate
  ...

* clk-freescale:
  clk: fsl-sai: new driver
  dt-bindings: clock: document the fsl-sai driver
  clk: composite: add _register_composite_pdata() variants

* clk-qoriq:
  clk: qoriq: add ls1088a hwaccel clocks support
  clk: ls1028a: Add clock driver for Display output interface
  dt/bindings: clk: Add YAML schemas for LS1028A Display Clock bindings
2020-01-31 13:14:26 -08:00
Anson Huang
9c140d9926 clk: imx: Add support for i.MX8MP clock driver
Add clock driver support for i.MX8MP which is a new SoC of i.MX8M
family.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-01-12 14:07:36 +08:00
Anson Huang
83dea32c5c clk: imx: gate4: Switch imx_clk_gate4_flags() to clk_hw based API
Switch the imx_clk_gate4_flags() function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-01-12 14:07:11 +08:00
Peng Fan
b9ef22e159 clk: imx: imx8mq: Switch to clk_hw based API
Switch the entire clk-imx8mq driver to clk_hw based API.
This allows us to move closer to a clear split between
consumer and provider clk APIs.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:51:01 +08:00
Peng Fan
9c71f9ea35 clk: imx: imx8mm: Switch to clk_hw based API
Switch the entire clk-imx8mm driver to clk_hw based API.
This allows us to move closer to a clear split between
consumer and provider clk APIs.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:59 +08:00
Peng Fan
daeb145455 clk: imx: imx8mn: Switch to clk_hw based API
Switch the entire clk-imx8mn driver to clk_hw based API.
This allows us to move closer to a clear split between
consumer and provider clk APIs.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:56 +08:00
Peng Fan
44fa471087 clk: imx: Remove __init for imx_obtain_fixed_clk_hw() API
Some of i.MX SoCs' clock driver will use platform driver model,
and they need to call imx_obtain_fixed_clk_hw() API, so
imx_obtain_fixed_clk_hw() API should NOT be in .init section.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:54 +08:00
Peng Fan
02cb0228e9 clk: imx: gate3: Switch to clk_hw based API
Switch the imx_clk_hw_gate3_flags function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:51 +08:00
Peng Fan
3d43f1582c clk: imx: add hw API imx_clk_hw_mux2_flags
Introduce hw based API imx_clk_hw_mux2_flags, then we could
convert i.MX8MN clk driver to use hw based APIs.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:49 +08:00
Peng Fan
61f35728ba clk: imx: add imx_unregister_hw_clocks
There is a non hw API based imx_unregister_clocks to unregister clocks
when of_clk_add_provider failed. Add a hw API based
imx_unregister_hw_clocks when of_clk_add_hw_provider failed.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:47 +08:00
Peng Fan
a4b431f803 clk: imx: clk-composite-8m: Switch to clk_hw based API
Switch the imx8m_clk_hw_composite_flags function to clk_hw based API,
rename accordingly and add a macro for clk based legacy. This allows
us to move closer to a clear split between consumer and provider clk
APIs.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:44 +08:00
Peng Fan
10c34b50f2 clk: imx: clk-pll14xx: Switch to clk_hw based API
Switch the imx_clk_pll14xx function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-23 11:50:30 +08:00
Abel Vesa
955a67f79a clk: imx7up: Rename the clks to hws
This is just to keep in line with the other i.MX clock drivers that are
clk_hw based. Plus, it makes more sense to be called hws since its type is
clk_hw not clk.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:20:03 +08:00
Abel Vesa
ea6a723a21 clk: imx: Rename the imx_clk_divider_gate to imply it's clk_hw based
Renaming the imx_clk_divider_gate register function to imx_clk_hw_divider_gate
to be more obvious it is clk_hw based.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:59 +08:00
Abel Vesa
40ad61d6b4 clk: imx: Rename the imx_clk_pfdv2 to imply it's clk_hw based
Renaming the imx_clk_pfdv2 register function to imx_clk_hw_pfdv2 to be
more obvious it is clk_hw based.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:57 +08:00
Abel Vesa
74e6395191 clk: imx: Rename the imx_clk_pllv4 to imply it's clk_hw based
Renaming the imx_clk_pllv4 register function to imx_clk_hw_pllv4 to be
more obvious it is clk_hw based.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:54 +08:00
Abel Vesa
179c1f7c7a clk: imx: Rename sccg and frac pll register to suggest clk_hw
Renaming the imx_clk_frac_pll and imx_clk_sccg_pll register functions to
imx_clk_hw_frac_pll, respectively imx_clk_hw_sccg_pll to be more obvious
that they are clk_hw based.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:50 +08:00
Abel Vesa
7c3f951a97 clk: imx: imx7ulp composite: Rename to show is clk_hw based
Renaming the imx7ulp_clk_composite register function to
imx7ulp_clk_hw_composite to show it is clk_hw based.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:48 +08:00
Abel Vesa
8705238349 clk: imx: pllv2: Switch to clk_hw based API
Switch the imx_clk_pllv2 register function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:44 +08:00
Abel Vesa
556f788010 clk: imx: pllv1: Switch to clk_hw based API
Switch the imx_clk_pllv1 register function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:41 +08:00
Abel Vesa
0394d404c3 clk: imx: Replace all the clk based helpers with macros
Replacing with macros all the clk based API helpers we reduce the code
duplication. The end goal is to get rid of all these macros when there
will be no more users of the clk based API, that is, when all the i.MX
clock provider drivers will be switched completely to the clk_hw based
API.

This is another step in moving away from the non clk_hw based API usage
throughout the i.MX clock drivers. The reason for doing that is to
have a clear split between the clock provider and the clock consumer API.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:38 +08:00
Abel Vesa
ba7928d9d7 clk: imx: Rename the SCCG to SSCG
According to the manual the acronym stands for
Spread Sprectum Clock Generator.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:35 +08:00
Abel Vesa
f60f1c62c3 clk: imx: Add correct failure handling for clk based helpers
If the clk_hw based API returns an error, trying to return the clk from
hw will end up in a NULL pointer dereference. So adding the to_clk
checker and using it inside every clk based macro helper we handle that
case correctly.

This to_clk is also temporary and will go away along with the clk based
macro helpers once there is no user that need them anymore.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 19:19:04 +08:00
Leonard Crestez
249fce6f3a clk: imx8qxp-lpcg: Warn against devm_platform_ioremap_resource
On imx8 the LPCG nodes map entire subsystems and overlap peripherals,
this means that using devm_platform_ioremap_resource will cause many
devices to fail to probe including serial ports.

Well-meaning but boot-breaking patches were posted multiple times so add
a comment explaining this issue.

Suggested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 16:06:10 +08:00
Peng Fan
c3a5fd15ed clk: imx: pll14xx: fix clk_pll14xx_wait_lock
The usage of readl_poll_timeout is wrong, the 3rd parameter(cond)
should be "val & LOCK_STATUS" not "val & LOCK_TIMEOUT_US",
It is not check whether the pll locked, LOCK_STATUS reflects the mask,
not LOCK_TIMEOUT_US.

Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Cc: <stable@vger.kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 15:07:06 +08:00
Li Jun
134d43bb1f clk: imx8mn: correct the usb1_ctrl parent to be usb_bus
Per latest imx8mn datasheet of CCM, the parent of usb1_ctrl_root_clk
should be usb_bus.

Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-11 11:46:57 +08:00
Peng Fan
ed11e31709 clk: imx: clk-imx7ulp: Add missing sentinel of ulp_div_table
There should be a sentinel of ulp_div_table, otherwise _get_table_div
may access data out of the array.

Fixes: b1260067ac ("clk: imx: add imx7ulp clk driver")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 10:53:45 +08:00
Leonard Crestez
2ef139393f clk: imx8m: Suppress bind attrs
The clock drivers on imx8m series are registered as platform devices and
this opens the possibility of reloading the driver at runtime.

This doesn't actually work: clocks are never removed and attempting to
bind again results in registration errors and a crash. Almost all
devices depend on clocks anyway so rebinding is unlikely to ever be
useful

Fix this by explicitly suppressing bind attrs like several other
clock drivers.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 10:36:34 +08:00
Fabio Estevam
c13f370d49 clk: imx7ulp: Fix watchdog2 clock name typo
There is a typo in the watchdog2 clock name.

Fix it by changing it to "wdg2".

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 10:31:18 +08:00
Jan Remmet
3ff86050da clk: imx6q: disable non functional divider
The /2 divider between pll4_audio_div and pll4_post_div is not working
on imx6q. The frequency is not halved as reported by the clock tree
and measured on clko.
In the technical reference manual the divider was removed in revision 4.
It's also not listed in the imx6qp manual.

imx6dl manual mentions a divider for PLL4 and the according register
description. So keep the divider here.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 10:09:12 +08:00
Leonard Crestez
e18f64712e clk: imx: Mark dram pll on 8mm and 8mn with CLK_GET_RATE_NOCACHE
DRAM frequency switches are executed in firmware and can change the
configuration of the DRAM PLL outside linux. Mark these CLKs with
CLK_GET_RATE_NOCACHE so we always read back the PLL config registers and
recalculate rates.

In current DRAM frequency tables on 8mm/8mn only the maximum frequency
uses the PLL so it's always configured in the same way. However reading
back the PLL configuration is the correct behavior and allows additional
setpoints in the future.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 09:15:26 +08:00
Leonard Crestez
d9ea9ca2b4 clk: imx8m: Set CLK_GET_RATE_NOCACHE on dram clocks
These clocks are only modified as part of DRAM frequency switches during
which DRAM itself is briefly inaccessible. The switch is performed with
a SMC call to by TF-A which runs from a SRAM area; upon returning to
linux several clocks bits are modified and we need to update them.

For rate bits an easy solution is to just mark with
CLK_GET_RATE_NOCACHE so that new rates are always read back from
registers.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 09:15:12 +08:00
Peng Fan
073a01e8d7 clk: imx: clk-composite-8m: add lock to gate/mux
There is a lock to divider in the composite driver, but that's not
enough. lock to gate/mux are also needed to provide exclusive access
to the register.

Fixes: d3ff972813 ("clk: imx: Add imx composite clock")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 08:27:06 +08:00
Peng Fan
2871736869 clk: imx: clk-divider-gate: drop redundant initialization
There is no need to initialize flags as 0.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 08:26:51 +08:00
Peng Fan
a546d88c13 clk: imx: clk-divider-gate: fix a typo in comment
Fix a typo in comment: resue -> reuse.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-12-09 08:26:51 +08:00
Linus Torvalds
ddebe839c6 This merge window we have one small clk provider API in the core framework and
then a bunch of driver updates and a handful of new drivers. In terms of
 diffstat the Qualcomm and Amlogic drivers are high up there because of all the
 clk data introcued by new drivers. The Nvidia Tegra driver had a lot of work
 done this cycle too to support suspend/resume and memory controllers. And the
 OMAP clk driver got proper clk and reset handling in place.
 
 Rounding out the patches are various updates to remove unused data, mark things
 static, correct incorrect data in drivers, etc. All the little things that
 improve drivers and maintain code health. I will point out that there's a patch
 in here for the GPIO clk driver, that almost nobody uses, which changes
 behavior and causes clk_set_rate() to try to change the GPIO gate clk's parent.
 Other than that things are fairly well SoC specific here.
 
 Core:
  - Add a clk provider API to get current parent index
  - Plug a memory leak in clk_unregister() path
 
 New Drivers:
  - CGU in Ingenix X1000
  - Bitmain BM1880 clks
  - Qualcomm MSM8998 GPU clk controllers
  - Qualcomm SC7180 GCC and RPMH clk controllers
  - Qualcomm QCS404 Q6SSTOP clk controllers
  - Add support for the Renesas R-Car M3-W+ (r8a77961) SoC
  - Add support for the Renesas RZ/G2N (r8a774b1) SoC
  - Add Tegra20/30 External Memory Clock (EMC) support
 
 Updates:
  - Make gpio gate clks propagate rate setting up to parent
  - Prepare Armada 3700 for suspend to RAM by moving PCIe suspend/resume priority
  - Drop unused variables, enums, etc. in various clk drivers
  - Convert various drivers to use devm_platform_ioremap_resource()
  - Use struct_size() some more in various clk drivers
  - Improve Rockchip px30 clk tree
  - Add suspend/resume support to Tegra210 clk driver
  - Reimplement SOR clks on earlier Tegra SoCs, helping HDMI and DP
  - Allwinner DT exports and H6 clk tree fixes
  - Proper clk and reset handling for OMAP SoCs
  - Revamped TI divider clk to clamp max divider
  - Make 1443X/1416X PLL clock structure common for reusing among i.MX8 SoCs
  - Drop IMX7ULP_CLK_MIPI_PLL clock, it shouldn't be used
  - Add VIDEO2_PLL clock for imx8mq
  - Add missing gate clock for pll1/2 fixed dividers on i.MX8 SoCs
  - Add sm1 support in the Amlogic audio clock controller
  - Switch some clocks on R-Car Gen2/3 to .determine_rate()
  - Remove Renesas R-Car Gen2 legacy DT clock support
  - Improve arithmetic divisions on Renesas R-Car Gen2 and Gen3
  - Improve Renesas R-Car Gen3 SD clock handling
  - Add rate table for Samsung exynos542x GPU and VPLL clks
  - Fix potential CPU performance degradation after system suspend/resume cycle
    on exynos542x SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This merge window we have one small clk provider API in the core
  framework and then a bunch of driver updates and a handful of new
  drivers. In terms of diffstat the Qualcomm and Amlogic drivers are
  high up there because of all the clk data introcued by new drivers.
  The Nvidia Tegra driver had a lot of work done this cycle too to
  support suspend/resume and memory controllers. And the OMAP clk driver
  got proper clk and reset handling in place.

  Rounding out the patches are various updates to remove unused data,
  mark things static, correct incorrect data in drivers, etc. All the
  little things that improve drivers and maintain code health. I will
  point out that there's a patch in here for the GPIO clk driver, that
  almost nobody uses, which changes behavior and causes clk_set_rate()
  to try to change the GPIO gate clk's parent. Other than that things
  are fairly well SoC specific here.

  Core:
   - Add a clk provider API to get current parent index
   - Plug a memory leak in clk_unregister() path

  New Drivers:
   - CGU in Ingenix X1000
   - Bitmain BM1880 clks
   - Qualcomm MSM8998 GPU clk controllers
   - Qualcomm SC7180 GCC and RPMH clk controllers
   - Qualcomm QCS404 Q6SSTOP clk controllers
   - Add support for the Renesas R-Car M3-W+ (r8a77961) SoC
   - Add support for the Renesas RZ/G2N (r8a774b1) SoC
   - Add Tegra20/30 External Memory Clock (EMC) support

  Updates:
   - Make gpio gate clks propagate rate setting up to parent
   - Prepare Armada 3700 for suspend to RAM by moving PCIe
     suspend/resume priority
   - Drop unused variables, enums, etc. in various clk drivers
   - Convert various drivers to use devm_platform_ioremap_resource()
   - Use struct_size() some more in various clk drivers
   - Improve Rockchip px30 clk tree
   - Add suspend/resume support to Tegra210 clk driver
   - Reimplement SOR clks on earlier Tegra SoCs, helping HDMI and DP
   - Allwinner DT exports and H6 clk tree fixes
   - Proper clk and reset handling for OMAP SoCs
   - Revamped TI divider clk to clamp max divider
   - Make 1443X/1416X PLL clock structure common for reusing among i.MX8
     SoCs
   - Drop IMX7ULP_CLK_MIPI_PLL clock, it shouldn't be used
   - Add VIDEO2_PLL clock for imx8mq
   - Add missing gate clock for pll1/2 fixed dividers on i.MX8 SoCs
   - Add sm1 support in the Amlogic audio clock controller
   - Switch some clocks on R-Car Gen2/3 to .determine_rate()
   - Remove Renesas R-Car Gen2 legacy DT clock support
   - Improve arithmetic divisions on Renesas R-Car Gen2 and Gen3
   - Improve Renesas R-Car Gen3 SD clock handling
   - Add rate table for Samsung exynos542x GPU and VPLL clks
   - Fix potential CPU performance degradation after system
     suspend/resume cycle on exynos542x SoCs"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (160 commits)
  clk: aspeed: Add RMII RCLK gates for both AST2500 MACs
  MAINTAINERS: Add entry for BM1880 SoC clock driver
  clk: Add common clock driver for BM1880 SoC
  dt-bindings: clock: Add devicetree binding for BM1880 SoC
  clk: Add clk_hw_unregister_composite helper function definition
  clk: Zero init clk_init_data in helpers
  clk: ingenic: Allow drivers to be built with COMPILE_TEST
  MAINTAINERS: Update section for Ux500 clock drivers
  clk: mark clk_disable_unused() as __init
  clk: Fix memory leak in clk_unregister()
  clk: Ingenic: Add CGU driver for X1000.
  dt-bindings: clock: Add X1000 bindings.
  clk: tegra: Use match_string() helper to simplify the code
  clk: pxa: fix one of the pxa RTC clocks
  clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
  clk: armada-xp: remove unused code
  clk: tegra: Fix build error without CONFIG_PM_SLEEP
  clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
  clk: tegra: Optimize PLLX restore on Tegra20/30
  clk: tegra: Add suspend and resume support on Tegra210
  ...
2019-12-01 16:06:02 -08:00
Stephen Boyd
74ca928886 Merge branches 'clk-hisi', 'clk-amlogic', 'clk-samsung', 'clk-renesas' and 'clk-imx' into clk-next
* clk-hisi:
  clk: hi6220: use CLK_OF_DECLARE_DRIVER

* clk-amlogic:
  clk: meson: axg-audio: use devm_platform_ioremap_resource() to simplify code
  clk: meson: axg_audio: add sm1 support
  clk: meson: axg-audio: provide clk top signal name
  clk: meson: axg-audio: prepare sm1 addition
  clk: meson: axg-audio: fix regmap last register
  clk: meson: axg-audio: remove useless defines
  dt-bindings: clock: meson: add sm1 resets to the axg-audio controller
  dt-bindings: clk: axg-audio: add sm1 bindings
  clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
  clk: meson: g12a: fix cpu clock rate setting
  clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate

* clk-samsung:
  clk: samsung: exynos5420: Add SET_RATE_PARENT flag to clocks on G3D path
  clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume
  clk: samsung: exynos5420: Add VPLL rate table
  clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
  clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
  clk: samsung: exynos5433: Fix error paths

* clk-renesas: (23 commits)
  clk: renesas: r8a7796: Add R8A77961 CPG/MSSR support
  clk: renesas: Rename CLK_R8A7796 to CLK_R8A77960
  dt-bindings: clock: renesas: cpg-mssr: Document r8a77961 support
  clk: renesas: r8a77965: Remove superfluous semicolon
  dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
  dt-bindings: clock: renesas: Remove R-Car Gen2 legacy DT bindings
  dt-bindings: clock: Add r8a77961 CPG Core Clock Definitions
  dt-bindings: power: Add r8a77961 SYSC power domain definitions
  clk: renesas: rcar-gen3: Switch SD clocks to .determine_rate()
  clk: renesas: rcar-gen3: Switch Z clocks to .determine_rate()
  clk: renesas: rcar-gen2: Switch Z clock to .determine_rate()
  clk: renesas: r8a774b1: Add TMU clock
  clk: renesas: cpg-mssr: Add r8a774b1 support
  dt-bindings: clock: renesas: cpg-mssr: Document r8a774b1 binding
  clk: renesas: rcar-gen3: Loop to find best rate in cpg_sd_clock_round_rate()
  clk: renesas: rcar-gen3: Absorb cpg_sd_clock_calc_div()
  clk: renesas: rcar-gen3: Avoid double table iteration in SD .set_rate()
  clk: renesas: rcar-gen3: Improve arithmetic divisions
  clk: renesas: rcar-gen2: Improve arithmetic divisions
  clk: renesas: Remove R-Car Gen2 legacy DT clock support
  ...

* clk-imx:
  clk: imx: imx8mq: fix sys3_pll_out_sels
  clk: imx7ulp: do not export out IMX7ULP_CLK_MIPI_PLL clock
  clk: imx: imx6ul: use imx_obtain_fixed_clk_hw to simplify code
  clk: imx: imx6sx: use imx_obtain_fixed_clk_hw to simplify code
  clk: imx: imx6sll: use imx_obtain_fixed_clk_hw to simplify code
  clk: imx: imx7d: use imx_obtain_fixed_clk_hw to simplify code
  clk: imx7ulp: Correct DDR clock mux options
  clk: imx7ulp: Correct system clock source option #7
  clk: imx: imx8mq: mark sys1/2_pll as fixed clock
  clk: imx: imx8mn: mark sys_pll1/2 as fixed clock
  clk: imx: imx8mm: mark sys_pll1/2 as fixed clock
  clk: imx8mn: Define gates for pll1/2 fixed dividers
  clk: imx8mm: Define gates for pll1/2 fixed dividers
  clk: imx8mq: Define gates for pll1/2 fixed dividers
  clk: imx: clk-pll14xx: Make two variables static
  clk: imx8mq: Add VIDEO2_PLL clock
  clk: imx8mn: Use common 1443X/1416X PLL clock structure
  clk: imx8mm: Move 1443X/1416X PLL clock structure to common place
  clk: imx: pll14xx: Fix quick switch of S/K parameter
2019-11-27 08:14:17 -08:00
Peng Fan
bceed71ba1 clk: imx: imx8mq: fix sys3_pll_out_sels
It is not correct that sys3_pll_out use sys2_pll1_ref_sel as parent.

According to the current imx_clk_sccg_pll design, it uses both
bypass1/2, however set bypass2 as 1 is not correct, because it will
make sys[x]_pll_out use wrong parent and might access wrong registers.

So correct bypass2 to 0 and fix sys3_pll_out_sels.

Fixes: e9dda4af68 ("clk: imx: Refactor entire sccg pll clk")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-11-04 09:10:49 +08:00
Fancy Fang
72b2429d40 clk: imx7ulp: do not export out IMX7ULP_CLK_MIPI_PLL clock
The mipi pll clock comes from the MIPI PHY PLL output, so
it should not be a fixed clock.

MIPI PHY PLL is in the MIPI DSI space, and it is used as
the bit clock for transferring the pixel data out and its
output clock is configured according to the display mode.

So it should be used only for MIPI DSI and not be exported
out for other usages.

Signed-off-by: Fancy Fang <chen.fang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-28 19:32:37 +08:00
Leonard Crestez
b234fe9558 clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
During cpu frequency switching the main "CLK_ARM" is reparented to an
intermediate "step" clock. On imx8mm and imx8mn the 24M oscillator is
used for this purpose but it is extremely slow, increasing wakeup
latencies to the point that i2c transactions can timeout and system
becomes unresponsive.

Fix by switching the "step" clk to SYS_PLL1_800M, matching the behavior
of imx8m cpufreq drivers in imx vendor tree.

This bug was not immediately apparent because upstream arm64 defconfig
uses the "performance" governor by default so no cpufreq transitions
happen.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Fixes: 96d6392b54 ("clk: imx: Add support for i.MX8MN clock driver")

Cc: stable@vger.kernel.org
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Link: https://lkml.kernel.org/r/f5d2b9c53f1ed5ccb1dd3c6624f56759d92e1689.1571771777.git.leonard.crestez@nxp.com
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-10-28 02:45:37 -07:00
Peng Fan
8f5d481959 clk: imx: imx6ul: use imx_obtain_fixed_clk_hw to simplify code
imx_obtain_fixed_clk_hw could be used to simplify code to replace
__clk_get_hw(of_clk_get_by_name(node, "name"))

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-28 16:46:54 +08:00
Peng Fan
8e1de35d4c clk: imx: imx6sx: use imx_obtain_fixed_clk_hw to simplify code
imx_obtain_fixed_clk_hw could be used to simplify code to replace
__clk_get_hw(of_clk_get_by_name(node, "name"))

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-28 16:46:50 +08:00
Peng Fan
184f9eb6c9 clk: imx: imx6sll: use imx_obtain_fixed_clk_hw to simplify code
imx_obtain_fixed_clk_hw could be used to simplify code to replace
__clk_get_hw(of_clk_get_by_name(node, "name"))

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-28 16:46:45 +08:00
Peng Fan
fc09a36a87 clk: imx: imx7d: use imx_obtain_fixed_clk_hw to simplify code
imx_obtain_fixed_clk_hw could be used to simplify code to replace
__clk_get_hw(of_clk_get_by_name(node, "name"))

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-28 16:45:09 +08:00
Anson Huang
2e2b928a04 clk: imx7ulp: Correct DDR clock mux options
In the latest reference manual Rev.0,06/2019, the DDR clock mux
is extended to 2 bits, and the clock options are also changed,
correct them accordingly.

Fixes: b1260067ac ("clk: imx: add imx7ulp clk driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-26 16:17:22 +08:00
Anson Huang
96ac93a7c4 clk: imx7ulp: Correct system clock source option #7
In the latest reference manual Rev.0,06/2019, the SCS's option #7
is no longer from upll, it is reserved, update clock driver accordingly.

Fixes: b1260067ac ("clk: imx: add imx7ulp clk driver")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-26 16:15:52 +08:00
Peng Fan
7858d31bef clk: imx: imx8mq: mark sys1/2_pll as fixed clock
According Architecture definition guide, SYS1_PLL is fixed at
800MHz, SYS2_PLL is fixed at 1000MHz, so let's use imx_clk_fixed
to register the clocks and drop code that could change the rate.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:07:08 +08:00
Peng Fan
3f44344868 clk: imx: imx8mn: mark sys_pll1/2 as fixed clock
According Architecture definition guide, SYS_PLL1 is fixed at
800MHz, SYS_PLL2 is fixed at 1000MHz, so let's use imx_clk_fixed
to register the clocks and drop code that could change the rate.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:07:05 +08:00
Peng Fan
c332481f62 clk: imx: imx8mm: mark sys_pll1/2 as fixed clock
According Architecture definition guide, SYS_PLL1 is fixed at
800MHz, SYS_PLL2 is fixed at 1000MHz, so let's use imx_clk_fixed
to register the clocks and drop code that could change the rate.

Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:06:47 +08:00
Leonard Crestez
e8688fe8df clk: imx8mn: Define gates for pll1/2 fixed dividers
On imx8mn there are 9 fixed-factor dividers for SYS_PLL1 and SYS_PLL2
each with their own gate. Only one of these gates (the one "dividing" by
one) is currently defined and it's incorrectly set as the parent of all
the fixed-factor dividers.

Add the other 8 gates to the clock tree between sys_pll1/2_bypass and
the fixed dividers.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:03:19 +08:00
Leonard Crestez
3e4947acad clk: imx8mm: Define gates for pll1/2 fixed dividers
On imx8mm there are 9 fixed-factor dividers for SYS_PLL1 and SYS_PLL2
each with their own gate. Only one of these gates (the one "dividing" by
one) is currently defined and it's incorrectly set as the parent of all
the fixed-factor dividers.

Add the other 8 gates to the clock tree between sys_pll1/2_bypass and
the fixed dividers.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:03:16 +08:00
Leonard Crestez
b04383b6a5 clk: imx8mq: Define gates for pll1/2 fixed dividers
On imx8mq there are 9 fixed-factor dividers for SYS_PLL1 and SYS_PLL2
each with their own gate but these gates are not currently defined in
the clock tree.

Add them between sys1/2_pll_out and the fixed dividers.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-25 17:03:00 +08:00
Peng Fan
727e12cde9 clk: imx: imx8mn: drop unused pll enum
The PLL enum definition is not used, so drop it.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1571122989-29361-1-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-10-16 13:08:06 -07:00
YueHaibing
8f2d3c1759 clk: imx: clk-pll14xx: Make two variables static
Fix sparse warnings:

drivers/clk/imx/clk-pll14xx.c:44:37:
 warning: symbol 'imx_pll1416x_tbl' was not declared. Should it be static?
drivers/clk/imx/clk-pll14xx.c:57:37:
 warning: symbol 'imx_pll1443x_tbl' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-14 21:22:20 +08:00
Laurentiu Palcu
f0b1d7f2e7 clk: imx8mq: Add VIDEO2_PLL clock
This clock is needed by DCSS when high resolutions are used.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
CC: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-14 19:27:23 +08:00
Anson Huang
0ae4fbc63c clk: imx8mn: Use common 1443X/1416X PLL clock structure
Use common 1413X/1416X PLL clock structure to save a lot
of duplicated code on i.MX8MN clock driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-06 10:13:30 +08:00
Anson Huang
43cdaa1567 clk: imx8mm: Move 1443X/1416X PLL clock structure to common place
Many i.MX8M SoCs use same 1443X/1416X PLL, such as i.MX8MM,
i.MX8MN and later i.MX8M SoCs, moving these PLL definitions
to pll14xx driver can save a lot of duplicated code on each
platform.

Meanwhile, no need to define PLL clock structure for every
module which uses same type of PLL, e.g., audio/video/dram use
1443X PLL, arm/gpu/vpu/sys use 1416X PLL, define 2 PLL clock
structure for each group is enough.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-06 10:13:01 +08:00
Leonard Crestez
094234fcf4 clk: imx: pll14xx: Fix quick switch of S/K parameter
The PLL14xx on imx8m can change the S and K parameter without requiring
a reset and relock of the whole PLL.

Fix clk_pll144xx_mp_change register reading and use it for pll1443 as
well since no reset+relock is required on K changes either.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-10-06 09:04:15 +08:00
Peng Fan
60a8a148b2 clk: imx: imx8mn: fix pll mux bit
pll BYPASS bit should be kept inside pll driver for glitchless freq
setting following spec. If exposing the bit, that means pll driver and
clk driver has two paths to touch this bit, which is wrong.

So use EXT_BYPASS bit here.

And drop uneeded set parent, because EXT_BYPASS default is 0.

Suggested-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1568043491-20680-5-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 22:53:34 -07:00
Peng Fan
67315be33e clk: imx: imx8mm: fix pll mux bit
pll BYPASS bit should be kept inside pll driver for glitchless freq
setting following spec. If exposing the bit, that means pll driver and
clk driver has two paths to touch this bit, which is wrong.

So use EXT_BYPASS bit here.

And drop uneeded set parent, because EXT_BYPASS default is 0.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Suggested-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1568043491-20680-4-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 22:53:34 -07:00
Peng Fan
a9aa830607 clk: imx: clk-pll14xx: unbypass PLL by default
When registering the PLL, unbypass the PLL.
The PLL has two bypass control bit, BYPASS and EXT_BYPASS.
we will expose EXT_BYPASS to clk driver for mux usage, and keep
BYPASS inside pll14xx usage. The PLL has a restriction that
when M/P change, need to RESET/BYPASS pll to avoid glitch, so
we could not expose BYPASS.

To make it easy for clk driver usage, unbypass PLL which does
not hurt current function.

Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1568043491-20680-3-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 22:53:34 -07:00
Peng Fan
dee1bc9c23 clk: imx: pll14xx: avoid glitch when set rate
According to PLL1443XA and PLL1416X spec,
"When BYPASS is 0 and RESETB is changed from 0 to 1, FOUT starts to
output unstable clock until lock time passes. PLL1416X/PLL1443XA may
generate a glitch at FOUT."

So set BYPASS when RESETB is changed from 0 to 1 to avoid glitch.
In the end of set rate, BYPASS will be cleared.

When prepare clock, also need to take care to avoid glitch. So
we also follow Spec to set BYPASS before RESETB changed from 0 to 1.
And add a check if the RESETB is already 0, directly return 0;

Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1568043491-20680-2-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 22:53:34 -07:00
Peng Fan
760e548e7f clk: imx: imx8mn: fix audio pll setting
The AUDIO PLL max support 650M, so the original clk settings violate
spec. This patch makes the output 786432000 -> 393216000,
and 722534400 -> 361267200 to aligned with NXP vendor kernel without any
impact on audio functionality and go within 650MHz PLL limit.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-24 21:04:27 +02:00
Anson Huang
613cc5cd74 clk: imx8mn: Add necessary frequency support for ARM PLL table
i.MX8MN supports CPU running at 1.5GHz/1.4GHz/1.2GHz, add missing
frequency for ARM PLL table.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 15:38:55 +02:00
Anson Huang
313ccbad73 clk: imx8mn: Add missing rate_count assignment for each PLL structure
Add .rate_count assignment which is necessary for searching required
PLL rate from the each PLL table.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 15:36:58 +02:00
Peng Fan
f8cade8310 clk: imx8mn: fix int pll clk gate
To Frac pll, the gate shift is 13, however to Int PLL the gate shift
is 11.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 13:57:47 +02:00
Leonard Crestez
be378b6007 clk: imx8mn: Add GIC clock
This is enabled by default but if it's not explicitly defined and marked
as critical then its parent might get turned off.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 13:54:40 +02:00
Leonard Crestez
b3d08a4b1e clk: imx8mn: Fix incorrect parents
* Replace to audio_pll2_clk with audio_pll2_out
* Replace sys3_pll2_out with sys_pll3_out
* Replace sys1_pll_40m with sys_pll1_40m
* qspi parent[2] is sys_pll2_333m not sys_pll1_800m

Fixes: 96d6392b54 ("clk: imx: Add support for i.MX8MN clock driver")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 13:54:36 +02:00
Leonard Crestez
3125c9eb01 clk: imx8mm: Fix incorrect parents
* There is no video_pll2 on imx8mm, replace with dummy
* Replace reference to sys_pll3_clk with sys_pll3_out
* qspi parent[2] is sys_pll2_333m not sys_pll1_800m

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 13:54:30 +02:00
Leonard Crestez
78f5666c18 clk: imx8mq: Fix sys3 pll references
The "sys3_pll2_out" CLK was removed in refactoring so all references
need to be updated to "sys3_pll_out"

Fixes: e9dda4af68 ("clk: imx: Refactor entire sccg pll clk")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 13:54:18 +02:00
Anson Huang
e8760d8a69 clk: imx8mq: Unregister clks when of_clk_add_provider failed
When of_clk_add_provider failed, all clks should be unregistered.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-12 16:15:49 +02:00
Anson Huang
ef7e6a1284 clk: imx8mm: Unregister clks when of_clk_add_provider failed
When of_clk_add_provider failed, all clks should be unregistered.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-12 16:15:31 +02:00
Abel Vesa
9b9c60bed5 clk: imx8mq: Mark AHB clock as critical
Initially, the TMU_ROOT clock was marked as critical, which automatically
made the AHB clock to stay always on. Since the TMU_ROOT clock is not
marked as critical anymore, following commit:

"clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU_ROOT"

all the clocks that derive from ipg_root clock (and implicitly ahb clock)
would also have to enable, along with their own gate, the AHB clock.

But considering that AHB is actually a bus that has to be always on, we mark
it as critical in the clock provider driver and then all the clocks that
derive from it can be controlled through the dedicated per IP gate which
follows after the ipg_root clock.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Tested-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 17:00:47 +02:00
Anson Huang
f7988ba3b2 clk: imx8mn: Keep uart clocks on for early console
Call imx_register_uart_clocks() API to keep uart clocks enabled
when earlyprintk or earlycon is active.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 11:03:48 +02:00
Anson Huang
5133f1f3cc clk: imx: Remove unused function statement
imx_register_uart_clocks_hws() function is NOT implemented
at all, remove it.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:56:37 +02:00
Anson Huang
b87340998a clk: imx7ulp: Make sure earlycon's clock is enabled
Earlycon's clock could be disabled during kernel boot up,
if earlycon is enabled and its clock is gated, then kernel
boot up will fail. Make sure earlycon's clock is enabled
during kernel boot up.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:54:44 +02:00
Abel Vesa
af7e7ee0e4 clk: imx8mm: Switch to platform driver
There is no strong reason for this to use CLK_OF_DECLARE instead
of being a platform driver. Plus, this will now be aligned with the
other i.MX8M clock drivers which are platform drivers.

In order to make the clock provider a platform driver
all the data and code needs to be outside of .init section.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:13:27 +02:00
Peng Fan
053a4ffe29 clk: imx: imx8mm: fix audio pll setting
The AUDIO PLL max support 650M, so the original clk settings violate
spec. This patch makes the output 786432000 -> 393216000,
and 722534400 -> 361267200 to aligned with NXP vendor kernel without any
impact on audio functionality and go within 650MHz PLL limit.

Cc: <stable@vger.kernel.org>
Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:04 +02:00
Anson Huang
d4c5792e2a clk: imx8mm: GPT1 clock mux option #5 should be sys_pll1_80m
i.MX8MM's GPT1 clock mux option #5 should be sys_pll1_80m,
NOT sys_pll1_800m, correct it.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:04 +02:00
Anson Huang
d52fb0193f clk: imx8mm: Fix typo of pwm3 clock's mux option #4
i.MX8MM has no sys3_pll2_out clock, PWM3 clock's mux option #4
should be sys_pll3_out, sys3_pll2_out is a typo, fix it.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:03 +02:00
Abel Vesa
e50bf7a67c clk: imx: Remove unused clk based API
Now that the i.MX6 and i.MX7 clock drivers have been switched to clk_hw based,
we can remove the clk based API that is not used by any i.MX clock driver.

The following APIs are going away now:
- imx_clk_busy_divider
- imx_clk_busy_mux
- imx_clk_fixup_divider
- imx_clk_fixup_mux
- imx_clk_mux_ldb
- imx_clk_gate_dis_flags
- imx_clk_gate_flags

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:03 +02:00
Li Jun
0d381f4c80 clk: imx8mq: set correct parent for usb ctrl clocks
Per latest imx8mq datasheet of CCM, the parent of usb1_ctrl_root_clk
and usb2_ctrl_root_clk is usb_bus.

Signed-off-by: Li Jun <jun.li@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:03 +02:00
Anson Huang
951c1aef96 clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU_ROOT
IMX8MQ_CLK_TMU_ROOT is ONLY used for thermal module, the driver
should manage this clock, so no need to have CLK_IS_CRITICAL flag
set.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:02 +02:00
Fancy Fang
0209001674 clk: imx8mm: rename 'share_count_dcss' to 'share_count_disp'
Rename 'share_count_dcss' to 'share_count_disp', since the
DCSS module does not exist on imx8mm platform. So rename it
to avoid any unnecessary confusion.

Signed-off-by: Fancy Fang <chen.fang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:02 +02:00
Li Jun
d1b395b36e clk: imx8mm: correct the usb1_ctrl parent to be usb_bus
Per latest imx8mm datasheet of CCM, the parent of usb1_ctrl_root_clk
should be usb_bus.

Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:02 +02:00
Daniel Baluta
6ad7cb7122 clk: imx8: Add DSP related clocks
i.MX8QXP contains Hifi4 DSP. There are four clocks
associated with DSP:
  * dsp_lpcg_core_clk
  * dsp_lpcg_ipg_clk
  * dsp_lpcg_adb_aclk
  * ocram_lpcg_ipg_clk

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:02 +02:00
Anson Huang
96d6392b54 clk: imx: Add support for i.MX8MN clock driver
This patch adds i.MX8MN clock driver support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:02 +02:00
Anson Huang
fd6ef2857b clk: imx: Add API for clk unregister when driver probe fail
For i.MX clock drivers probe fail case, clks should be unregistered
in the return path, this patch adds a common API for i.MX clock
drivers to unregister clocks when fail.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:01 +02:00
Anson Huang
34af5179d2 clk: imx8mm: Make 1416X/1443X PLL macro definitions common for usage
1416X/1443X PLL are used on i.MX8MM and i.MX8MN and maybe
other i.MX8M series SoC later, the macro definitions of
these PLLs' initialization should be common for usage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 09:16:01 +02:00
Linus Torvalds
916f562fb2 This round of clk driver and framework updates is heavy on the driver update
side. The two main highlights in the core framework are the addition of an bulk
 clk_get API that handles optional clks and an extra debugfs file that tells the
 developer about the current parent of a clk.
 
 The driver updates are dominated by i.MX in the diffstat, but that is mostly
 because that SoC has started converting to the clk_hw style of clk
 registration. The next big update is in the Amlogic meson clk driver that
 gained some support for audio, cpu, and temperature clks while fixing some PLL
 issues. Finally, the biggest thing that stands out is the conversion of a large
 part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses
 less strings and more pointer comparisons to match clk parents and children up.
 
 In general, it looks like we have a lot of little fixes and tweaks here and
 there to clk data along with the normal addition of a handful of new drivers
 and a couple new core framework features.
 
 Core:
  - Add a 'clk_parent' file in clk debugfs
  - Add a clk_bulk_get_optional() API (with devm too)
 
 New Drivers:
  - Support gated clk controller on MIPS based BCM63XX SoCs
  - Support SiLabs Si5341 and Si5340 chips
  - Support for CPU clks on Raspberry Pi devices
  - Audsys clock driver for MediaTek MT8516 SoCs
 
 Updates:
  - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
  - Small frequency support for SiLabs Si544 chips
  - Slow clk support for AT91 SAM9X60 SoCs
  - Remove dead code in various clk drivers (-Wunused)
  - Support for Marvell 98DX1135 SoCs
  - Get duty cycle of generic pwm clks
  - Improvement in mmc phase calculation and cleanup of some rate defintions
  - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
  - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
  - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
  - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
  - Add clks for new Exynos5422 Dynamic Memory Controller driver
  - Clock definition for Exynos4412 Mali
  - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
  - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
  - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
  - TI clock probing done from DT by default instead of firmware
  - Fix Amlogic Meson mpll fractional part and spread sprectrum issues
  - Add Amlogic meson8 audio clocks
  - Add Amlogic g12a temperature sensors clocks
  - Add Amlogic g12a and g12b cpu clocks
  - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
  - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
  - Add Clock Domain support on Renesas RZ/N1
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round of clk driver and framework updates is heavy on the driver
  update side. The two main highlights in the core framework are the
  addition of an bulk clk_get API that handles optional clks and an
  extra debugfs file that tells the developer about the current parent
  of a clk.

  The driver updates are dominated by i.MX in the diffstat, but that is
  mostly because that SoC has started converting to the clk_hw style of
  clk registration. The next big update is in the Amlogic meson clk
  driver that gained some support for audio, cpu, and temperature clks
  while fixing some PLL issues. Finally, the biggest thing that stands
  out is the conversion of a large part of the Allwinner sunxi-ng driver
  to the new clk parent scheme that uses less strings and more pointer
  comparisons to match clk parents and children up.

  In general, it looks like we have a lot of little fixes and tweaks
  here and there to clk data along with the normal addition of a handful
  of new drivers and a couple new core framework features.

  Core:
   - Add a 'clk_parent' file in clk debugfs
   - Add a clk_bulk_get_optional() API (with devm too)

  New Drivers:
   - Support gated clk controller on MIPS based BCM63XX SoCs
   - Support SiLabs Si5341 and Si5340 chips
   - Support for CPU clks on Raspberry Pi devices
   - Audsys clock driver for MediaTek MT8516 SoCs

  Updates:
   - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
   - Small frequency support for SiLabs Si544 chips
   - Slow clk support for AT91 SAM9X60 SoCs
   - Remove dead code in various clk drivers (-Wunused)
   - Support for Marvell 98DX1135 SoCs
   - Get duty cycle of generic pwm clks
   - Improvement in mmc phase calculation and cleanup of some rate defintions
   - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
   - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
   - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
   - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
   - Add clks for new Exynos5422 Dynamic Memory Controller driver
   - Clock definition for Exynos4412 Mali
   - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
   - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
   - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
   - TI clock probing done from DT by default instead of firmware
   - Fix Amlogic Meson mpll fractional part and spread sprectrum issues
   - Add Amlogic meson8 audio clocks
   - Add Amlogic g12a temperature sensors clocks
   - Add Amlogic g12a and g12b cpu clocks
   - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
   - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
   - Add Clock Domain support on Renesas RZ/N1"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
  clk: consoldiate the __clk_get_hw() declarations
  clk: sprd: Add check for return value of sprd_clk_regmap_init()
  clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
  clk: Add Si5341/Si5340 driver
  dt-bindings: clock: Add silabs,si5341
  clk: clk-si544: Implement small frequency change support
  clk: add BCM63XX gated clock controller driver
  devicetree: document the BCM63XX gated clock bindings
  clk: at91: sckc: use dedicated functions to unregister clock
  clk: at91: sckc: improve error path for sama5d4 sck registration
  clk: at91: sckc: remove unnecessary line
  clk: at91: sckc: improve error path for sam9x5 sck register
  clk: at91: sckc: add support to free slow clock osclillator
  clk: at91: sckc: add support to free slow rc oscillator
  clk: at91: sckc: add support to free slow oscillator
  clk: rockchip: export HDMIPHY clock on rk3228
  clk: rockchip: add watchdog pclk on rk3328
  clk: rockchip: add clock id for hdmi_phy special clock on rk3228
  clk: rockchip: add clock id for watchdog pclk on rk3328
  clk: at91: sckc: add support for SAM9X60
  ...
2019-07-17 10:07:48 -07:00
Stephen Boyd
47c9e0cef0 Merge branches 'clk-rpi-cpufreq', 'clk-tegra', 'clk-simplify-provider.h', 'clk-sprd' and 'clk-at91' into clk-next
- Support for CPU clks on Raspberry Pi devices
 - Slow clk support for AT91 SAM9X60 SoCs

* clk-rpi-cpufreq:
  clk: raspberrypi: register platform device for raspberrypi-cpufreq
  firmware: raspberrypi: register clk device
  clk: bcm283x: add driver interfacing with Raspberry Pi's firmware
  clk: bcm2835: remove pllb

* clk-tegra:
  clk: tegra: Do not enable PLL_RE_VCO on Tegra210
  clk: tegra: Warn if an enabled PLL is in IDDQ
  clk: tegra: Do not warn unnecessarily
  clk: tegra210: fix PLLU and PLLU_OUT1

* clk-simplify-provider.h:
  clk: consoldiate the __clk_get_hw() declarations
  clk: Unexport __clk_of_table
  clk: Remove ifdef for COMMON_CLK in clk-provider.h

* clk-sprd:
  clk: sprd: Add check for return value of sprd_clk_regmap_init()
  clk: sprd: Check error only for devm_regmap_init_mmio()
  clk: sprd: Switch from of_iomap() to devm_ioremap_resource()

* clk-at91:
  clk: at91: sckc: use dedicated functions to unregister clock
  clk: at91: sckc: improve error path for sama5d4 sck registration
  clk: at91: sckc: remove unnecessary line
  clk: at91: sckc: improve error path for sam9x5 sck register
  clk: at91: sckc: add support to free slow clock osclillator
  clk: at91: sckc: add support to free slow rc oscillator
  clk: at91: sckc: add support to free slow oscillator
  clk: at91: sckc: add support for SAM9X60
  dt-bindings: clk: at91: add bindings for SAM9X60's slow clock controller
  clk: at91: sckc: add support to specify registers bit offsets
  clk: at91: sckc: sama5d4 has no bypass support
2019-07-12 11:11:30 -07:00
Stephen Rothwell
1df3799243 clk: consoldiate the __clk_get_hw() declarations
Without this we were getting errors like:

In file included from drivers/clk/clkdev.c:22:0:
drivers/clk/clk.h:36:23: error: static declaration of '__clk_get_hw' follows non-static declaration
include/linux/clk-provider.h:808:16: note: previous declaration of '__clk_get_hw' was here

Fixes: 59fcdce425 ("clk: Remove ifdef for COMMON_CLK in clk-provider.h")
fixes: 73e0e496af ("clkdev: Always allocate a struct clk and call __clk_get() w/ CCF")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-07-12 11:00:14 -07:00
Anson Huang
15c64ff762 clk: imx8mq: Keep uart clocks on during system boot
Call imx_register_uart_clocks() API to keep uart clocks enabled
when earlyprintk or earlycon is active.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-24 09:43:40 +08:00
Anson Huang
e5190586a9 clk: imx: Remove __init for imx_register_uart_clocks() API
Some of i.MX SoCs' clock driver use platform driver model,
and they need to call imx_register_uart_clocks() API, so
imx_register_uart_clocks() API should NOT be in .init section.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-24 09:43:29 +08:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Thomas Gleixner
acee2e8d66 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 460
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation http www opensource org
  licenses gpl license html http www gnu org copyleft gpl html

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 3 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.897982733@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:09 +02:00
Arnd Bergmann
0e12248c68 clk: imx6q: fix section mismatch warning
The imx6q_obtain_fixed_clk_hw lacks an __init marker, which
leads to this otherwise harmless warning:

WARNING: vmlinux.o(.text+0x495358): Section mismatch in reference from the function imx6q_obtain_fixed_clk_hw() to the function .init.text:imx_obtain_fixed_clock_hw()
The function imx6q_obtain_fixed_clk_hw() references
the function __init imx_obtain_fixed_clock_hw().
This is often because imx6q_obtain_fixed_clk_hw lacks a __init
annotation or the annotation of imx_obtain_fixed_clock_hw is wrong.

Fixes: 992b703b5b ("clk: imx6q: Switch to clk_hw based API")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 21:17:07 +08:00
Anson Huang
1aa6af5f18 clk: imx8mq: Use devm_platform_ioremap_resource() instead of of_iomap()
i.MX8MQ clock driver uses platform driver model, better to use
devm_platform_ioremap_resource() instead of of_iomap() to get
IO base.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 14:52:08 +08:00
Anson Huang
883cd3c962 clk: imx8mq: Use imx_check_clocks() API directly
Use imx_check_clocks() API to check clocks directly.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 14:51:01 +08:00
Anson Huang
c63fe28bf1 clk: imx: Remove __init for imx_check_clocks() API
Some of i.MX SoCs' clock driver use platform driver model,
and they need to call imx_check_clocks() API, so
imx_check_clocks() API should NOT be in .init section.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 14:50:47 +08:00
Abel Vesa
b170b5d5e8 clk: imx6sll: Switch to clk_hw based API
Switch the entire clk-imx6sll driver to clk_hw based API.
This allows us to move closer to a clear split between
consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:51 +08:00
Abel Vesa
bce5b92150 clk: imx7d: Switch to clk_hw based API
Switch the entire clk-imx7d driver to clk_hw based API. This allows us
to move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:49 +08:00
Abel Vesa
1487b60dc2 clk: imx6ul: Switch to clk_hw based API
Switch the entire clk-imx6ul driver to clk_hw based API. This allows us
to move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:47 +08:00
Abel Vesa
f1541e15e3 clk: imx6sx: Switch to clk_hw based API
Switch the entire clk-imx6sx driver to clk_hw based API. This allows us
to move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:44 +08:00
Abel Vesa
992b703b5b clk: imx6q: Switch to clk_hw based API
Switch the entire clk-imx6q driver to clk_hw based API.
Add imx6q_obtain_fixed_clk_hw helper to clean up the registration
of the clocks that are either found in device tree or are assigned
a fixed zero rate. This switch allows us to move closer to a clear
split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:42 +08:00
Abel Vesa
3a1d8fe6f4 clk: imx6sl: Switch to clk_hw based API
Switch the entire clk-imx6sl driver to clk_hw based API.
This allows us to move closer to a clear split between
consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:39 +08:00
Abel Vesa
eccf8dfd00 clk: imx: Switch wrappers to clk_hw based API
Switch all the wrappers to clk_hw based API and rename them to indicate
that. Add macros for clk based legacy users. This allows us to move
closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:37 +08:00
Abel Vesa
3ead0f1e5f clk: imx: clk-fixup-mux: Switch to clk_hw based API
Switch the imx_clk_fixup_mux function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. a macro for clk
based legacy. This allows us to move closer to a clear split between
consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:34 +08:00
Abel Vesa
2597b39ed1 clk: imx: clk-fixup-div: Switch to clk_hw based API
Switch the imx_clk_fixup_divider function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:32 +08:00
Abel Vesa
dfc148b32a clk: imx: clk-gate-exclusive: Switch to clk_hw based API
Switch the imx_clk_gate_exclusive function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to move
closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:30 +08:00
Abel Vesa
995087c91e clk: imx: clk-pfd: Switch to clk_hw based API
Switch the imx_clk_pfd function to clk_hw based API, rename accordingly
and add a macro for clk based legacy. This allows us to move closer to
a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:27 +08:00
Abel Vesa
e5674a4d07 clk: imx: clk-pllv3: Switch to clk_hw based API
Switch the imx_clk_hw_pllv3 function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us
to move closer to a clear split between consumer and provider clk
APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:25 +08:00
Abel Vesa
1f9aec9662 clk: imx: clk-gate2: Switch to clk_hw based API
Switch the clk_register_gate2 function to clk_hw based API, rename
accordingly and add a macro for clk based legacy. This allows us to
move closer to a clear split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:22 +08:00
Abel Vesa
2bc7e9dc1c clk: imx: clk-cpu: Switch to clk_hw based API
Switch the clk_cpu clock registering function to clk_hw based API and add
a macro for clk based legacy. This allows us to move closer to a clear
split between consumer and provider clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:20 +08:00
Abel Vesa
dd1a6c0d33 clk: imx: clk-busy: Switch to clk_hw based API
Switch all the clk_busy clock registering functions to clk_hw based API.
Keep around some clk based wrappers to be used by older imx platforms.
This allows us to move closer to a clear split of consumer and provider
clk APIs.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:17 +08:00
Abel Vesa
f5697226f9 clk: imx6q: Do not reparent uninitialized IMX6QDL_CLK_PERIPH2 clock
The clock is registered later than these two re-parentings.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:15 +08:00
Abel Vesa
fa7574740c clk: imx6sx: Do not reparent to unregistered IMX6SX_CLK_AXI
The clock IMX6SX_CLK_AXI is not registered at all.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:36:12 +08:00
Abel Vesa
a4a4069f45 clk: imx: Add imx_obtain_fixed_clock clk_hw based variant
In order to move to clk_hw based API, imx_obtain_fixed_clock_hw
is added. The end goal here is to have all the clk providers use
the clk_hw based API.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:35:50 +08:00
Peng Fan
5b933e28d8 clk: imx: imx8mm: correct audio_pll2_clk to audio_pll2_out
There is no audio_pll2_clk registered, it should be audio_pll2_out.

Cc: <stable@vger.kernel.org>
Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-07 08:18:10 +08:00
Thomas Gleixner
2b27bdcc20 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 51 franklin st fifth floor boston ma 02110
  1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 246 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:07 +02:00
Linus Torvalds
2f4c533499 SPDX update for 5.2-rc3, round 1
Here is another set of reviewed patches that adds SPDX tags to different
 kernel files, based on a set of rules that are being used to parse the
 comments to try to determine that the license of the file is
 "GPL-2.0-or-later" or "GPL-2.0-only".  Only the "obvious" versions of
 these matches are included here, a number of "non-obvious" variants of
 text have been found but those have been postponed for later review and
 analysis.
 
 There is also a patch in here to add the proper SPDX header to a bunch
 of Kbuild files that we have missed in the past due to new files being
 added and forgetting that Kbuild uses two different file names for
 Makefiles.  This issue was reported by the Kbuild maintainer.
 
 These patches have been out for review on the linux-spdx@vger mailing
 list, and while they were created by automatic tools, they were
 hand-verified by a bunch of different people, all whom names are on the
 patches are reviewers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull yet more SPDX updates from Greg KH:
 "Here is another set of reviewed patches that adds SPDX tags to
  different kernel files, based on a set of rules that are being used to
  parse the comments to try to determine that the license of the file is
  "GPL-2.0-or-later" or "GPL-2.0-only". Only the "obvious" versions of
  these matches are included here, a number of "non-obvious" variants of
  text have been found but those have been postponed for later review
  and analysis.

  There is also a patch in here to add the proper SPDX header to a bunch
  of Kbuild files that we have missed in the past due to new files being
  added and forgetting that Kbuild uses two different file names for
  Makefiles. This issue was reported by the Kbuild maintainer.

  These patches have been out for review on the linux-spdx@vger mailing
  list, and while they were created by automatic tools, they were
  hand-verified by a bunch of different people, all whom names are on
  the patches are reviewers"

* tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (82 commits)
  treewide: Add SPDX license identifier - Kbuild
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 225
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 224
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 223
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 222
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 221
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 220
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 218
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 217
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 216
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 215
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 214
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 213
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 211
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 207
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 203
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
  ...
2019-05-31 08:34:32 -07:00
Linus Torvalds
20f9449656 A few clk driver fixes
- Don't expose the SiFive clk driver on non-RISCV architectures
 
  - Fix some bits describing clks in the imx8mm driver
 
  - Always call clk domain code in the TI driver so non-legacy platforms
    work
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk driver fixes from Stephen Boyd:

 - Don't expose the SiFive clk driver on non-RISCV architectures

 - Fix some bits describing clks in the imx8mm driver

 - Always call clk domain code in the TI driver so non-legacy platforms
   work

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: ti: clkctrl: Fix clkdm_clk handling
  clk: imx: imx8mm: fix int pll clk gate
  clk: sifive: restrict Kconfig scope for the FU540 PRCI driver
2019-05-30 16:33:37 -07:00
Thomas Gleixner
fcaf20360a treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159
Based on 1 normalized pattern(s):

  the code contained herein is licensed under the gnu general public
  license you may obtain a copy of the gnu general public license
  version 2 or later at the following locations http www opensource
  org licenses gpl license html http www gnu org copyleft gpl html

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 161 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.383790741@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Jacky Bai
52f93ab8b4 clk: imx: keep the mmdc p1 ipg clock always on on 6sx/ul/ull/sll
The MMDC_P1_IPG clock need to be on always on to make sure
the MMDC register can be accessed successfully.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:42 +08:00
Leonard Crestez
a44e970621 clk: imx8mm: Mark dram_apb critical
This clock is used for dram operations inside TF-A and must be kept
enabled for features such as suspend/resume dram retention and busfreq
to work.

This is required for imx8mm suspend to work with NXP branch of TF-A.
There is an equivalent clk on imx8mq and it's always been marked as
critical in upstream.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:41 +08:00
Anson Huang
246c9ab434 clk: imx7ulp: update nic1_bus_clk parent info
Since i.MX7ULP B0 chip, nic1_bus_clk's parent is changed to
from nic0_clk directly, update it accordingly.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:41 +08:00
Anson Huang
c129b6fe81 clk: imx: Use imx_mmdc_mask_handshake() API for masking MMDC channel
Use imx_mmdc_mask_handshake() API instead of programming CCM
register directly in each platform to mask unused MMDC channel's
handshake.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:41 +08:00
Anson Huang
efdb279033 clk: imx: Add common API for masking MMDC handshake
All i.MX6 SoCs need to mask unused MMDC channel's handshake
for low power modes, this patch provides common API for masking
the MMDC channel passed from caller.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:41 +08:00
Leonard Crestez
53c6a2ec01 clk: imx8m: Add GIC clock
This is documented in the reference manuals as GIC_CLK_ROOT.

In some out-of-tree DVFS scenarios the gic clock can end up as the only
user of sys_pll2 so if we don't define the gic clk explicitly it might
be turned off.

This applies to both 8mq and 8mm: same clk register but diffferent
parents.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 21:14:41 +08:00
Anson Huang
75ebf69445 clk: imx8mm: add SNVS clock to clock tree
i.MX8MM has clock gate for SNVS module, add it into clock tree
for SNVS RTC driver to manage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-23 15:29:39 +08:00
Anson Huang
3d6c33cb90 clk: imx8mq: add SNVS clock to clock tree
i.MX8MQ has clock gate for SNVS module, add it into clock tree
for SNVS RTC driver to manage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-22 17:00:57 +08:00
Peng Fan
b3fddd5b10 clk: imx: imx8mm: fix int pll clk gate
To Frac pll, the gate shift is 13, however to Int PLL the gate shift
is 11.

Cc: <stable@vger.kernel.org>
Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-21 11:42:44 -07:00
Thomas Gleixner
8b9844d7e8 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 2 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.615184352@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:47 +02:00
Thomas Gleixner
1621633323 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  51 franklin street fifth floor boston ma 02110 1301 usa

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option [no]_[pad]_[ctrl] any later version this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 51 franklin street fifth floor boston ma
  02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 176 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:39 +02:00
Anson Huang
dcec6ced9f clk: imx8mm: add GPIO clocks to clock tree
i.MX8MM has clock gate for each GPIO bank, add them
into clock tree for GPIO driver to manage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-20 11:21:50 +08:00