3762 Commits

Author SHA1 Message Date
Linus Walleij
689a318c16 clk: ux500: move AB8500 sysclk over to PRCMU clk driver
The AB8500 sysclk is just another PRCMU-controlled clock, there
is no reason why it should be in the ABx500-controlled part of
the clock implementation. Doing this and the corresponding device
tree changes makes USB work on the Ux500 again.

Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:10:01 -08:00
Jean Delvare
3d21a4b646 clk: mediatek: Fix MT8135 dependencies
The MT8135 is a 32-bit SoC, so only propose it on ARM architecture,
not ARM64.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 234d511d8c15 ("clk: mediatek: Add hardware dependency")
Cc: Andreas Färber <afaerber@suse.de>
Acked-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:04:31 -08:00
Jean Delvare
6e9c0d5a33 clk: mediatek: Fix MT2701 dependencies
If I say "no" to "Clock driver for Mediatek MT2701", I don't want to
be asked individually about each sub-driver. No means no.

Additionally, this driver shouldn't be proposed at all on non-mediatek
builds, unless build-testing.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: e9862118272a ("clk: mediatek: Add MT2701 clock support")
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: James Liao <jamesjj.liao@mediatek.com>
Cc: Shunli Wang <shunli.wang@mediatek.com>
Cc: Erin Lo <erin.lo@mediatek.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:04:15 -08:00
Keerthy
ced3068344 clk: ti: divider: Add the table parsing to get the best divider value
Currently the divider selection logic blindly divides the parent_rate
by the clk rate and gives the divider value for the divider clocks
which do not have the CLK_SET_RATE_PARENT flag set. Add the clk divider
table parsing to get the closest divider available in the table
provided via Device tree.

The code is pretty much taken from: drivers/clk/clk-divider.c.
and used here to fix up the best divider selection logic.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reported-by: Richard Woodruff <r-woodruff2@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:03:04 -08:00
Rajendra Nayak
843be1e7fb clk: qcom: gdsc: Fix handling of hw control enable/disable
Once a gdsc is brought in and out of HW control, there is a
power down and up cycle which can take upto 1us. Polling on
the gdsc status immediately after the hw control enable/disable
can mislead software/firmware to belive the gdsc is already either on
or off, while its yet to complete the power cycle.
To avoid this add a 1us delay post a enable/disable of HW control
mode.

Also after the HW control mode is disabled, poll on the status to
check gdsc status reflects its 'on' before force disabling it
in software.

Reported-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Tested-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Fixes: 904bb4f5c7de ("clk: qcom: gdsc: Add support for gdscs with HW control")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 16:00:38 -08:00
Jerome Brunet
340a84ce1e clk: meson8b: fix clk81 register address
During meson8b clock probe, clk81 register address is fixed twice.
First using the meson8b_clk_gates array, then by directly changing
meson8b_clk81 register.

As a result meson8b_clk81.reg = HHI_MPEG_CLK_CNTL + clk_base + clk_base.

Fixed by just removing the second fixup.

Fixes: e31a1900c1ff ("meson: clk: Add support for clock gates")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:54:48 -08:00
Gabriel Fernandez
88c9b70bb2 clk: stm32f7: Introduce stm32f7 clocks for STM32F746 boards
This patch enables clocks for STM32F746 boards.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:53:03 -08:00
Masahiro Yamada
f080a49386 clk: uniphier: continue probing even if some clocks fail to register
Do not let the entire probe function fail even if some clocks fail
to register.  Let's continue with succeeded clocks.  This will give
the system more chances to boot and allow us to investigate the
cause of the failure.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-26 15:52:54 -08:00
Stephen Boyd
645ebb1daa Merge branch 'clk-imx7', 'clk-bcm2835' into clk-next
* clk-imx7:
  clk: imx7d: Add the OCOTP clock

* clk-bcm2835:
  clk: bcm2835: Add leaf clock measurement support, disabled by default
  clk: bcm2835: Register the DSI0/DSI1 pixel clocks.
  clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.
2017-01-26 15:52:37 -08:00
Martin Blumenstingl
33d0fcdfe0 clk: gxbb: add the SAR ADC clocks and expose them
The HHI_SAR_CLK_CNTL contains three SAR ADC specific clocks:
- a mux clock to choose between different ADC reference clocks (this is
  2-bit wide, but the datasheet only lists the parents for the first
  bit)
- a divider for the input/reference clock
- a gate which enables the ADC clock

Additionally this exposes the ADC core clock (CLKID_SAR_ADC) and
CLKID_SANA (which seems to enable the analog inputs, but unfortunately
there is no documentation for this - we just mimic what the vendor
driver does).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-01-23 10:18:21 -08:00
Maxime Ripard
5e73761786 clk: sunxi-ng: Add sun5i CCU driver
The Allwinner A10s, A13, R8 and NextThing GR8 are all based on the same
silicon, and all share the same clocks.

However, they're not packaged in the same way, and therefore not all the
controllers are actually available on all these SoCs.

Introduce a clock controller driver for all these SoCs with different
compatibles to take that into account.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-23 11:45:29 +01:00
Maxime Ripard
7c09b85896 clk: sunxi-ng: Implement global pre-divider
Some clocks have a global pre-divider that applies to all their parents.

Since it might also apply to clocks that have a single parent, this is
merged in the ccu_common structure, unlike the other pre-divider settings
that are tied to a specific index, and thus a specific parent.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-23 11:45:02 +01:00
Maxime Ripard
0c3c8e1358 clk: sunxi-ng: Implement multiplier maximum
Some multipliers have a maximum rate that is lower than what the register
width allows to. Add a field in the multiplier structure to allow CCU
driver to set that maximum.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-23 11:45:01 +01:00
Maxime Ripard
c9520be383 clk: sunxi-ng: mult: Fix minimum in round rate
The previous code was always taking 1 as the minimum in it's round_rate
function, ignoring entirely what was set as minimum in the clock
definition.

Make sure that's not the case anymore.

Fixes: 2beaa601c849 ("clk: sunxi-ng: Implement minimum for multipliers")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-23 11:44:48 +01:00
Maxime Ripard
e66f81bbd7 clk: sunxi-ng: Implement factors offsets
The factors we've seen so far all had an offset of one. However, on the
earlier Allwinner SoCs, some factors could have no offset at all, meaning
that the value computed to reach the rate we want to use was the one we had
to program in the registers.

Implement an additional field for the factors that can have such an offset
(linears, not based on a power of two) to specify that offset.

This offset is not linked to the extremums that can be specified in those
structures too. The minimum and maximum are representing the range of
values we can use to try to compute the best rate. The offset comes later
on when we want to set the best value in the registers.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-23 11:44:27 +01:00
Maxime Ripard
d77e8135b3 clk: sunxi-ng: multiplier: Add fractional support
Some clocks on the earlier SoCs such as the video PLLs are multipliers with
fractional settings.

Support those cases.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
2017-01-23 11:44:26 +01:00
Geert Uytterhoeven
e34084fb9a clk: renesas: mstp: Make INTC-SYS a critical clock
INTC-SYS is the module clock for the GIC.  Accessing the GIC while it is
disabled causes:

    Unhandled fault: asynchronous external abort (0x1211) at 0x00000000

Currently, the GIC-400 driver cannot enable its module clock for several
reasons:
  - It does not use a platform device, so Runtime PM is not an option,
  - gic_of_init() runs before any clocks are registered, so it cannot
    enable the clock explicitly,
  - gic_of_init() cannot return -EPROBE_DEFER, as IRQCHIP_DECLARE()
    doesn't support deferred probing.

Hence we have to keep on relying on the boot loader for enabling the
module clock.

To prevent the module clock from being disabled when the CCF core thinks
it is unused, and thus causing a system lock-up, add a check to the MSTP
clock driver and enable CLK_IS_CRITICAL. This will make sure the module
clock is never disabled.

This is a hard dependency for describing the INTC-SYS clock in DT on
R-Mobile APE6 and R-Car Gen2.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-23 11:04:46 +01:00
Geert Uytterhoeven
72f5df2c2b clk: renesas: cpg-mssr: Migrate to CLK_IS_CRITICAL
When the Renesas CPG/MSSR driver was introduced, it was anticipated that
critical clocks would be handled through a new CLK_ENABLE_HAND_OFF flag
soon.  However, CLK_ENABLE_HAND_OFF never made it upstream.

Instead, commit 32b9b10961860860 ("clk: Allow clocks to be marked as
CRITICAL") introduced CLK_IS_CRITICAL, a flag with slightly differing
semantics.  Still, it can be used to prevent e.g. the GIC module clock
from being turned off, until the GIC-400 driver has full support for
Runtime PM.

Hence migrate the Renesas CPG/MSSR driver from CLK_ENABLE_HAND_OFF to
CLK_IS_CRITICAL.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-23 11:04:45 +01:00
Jacob Chen
a811498902 clk: rockchip: rk3288: make all niu clocks critical
NIU clocks are related to the interconnect and it's important to other blocks.
Since we don't have a driver to handle it, we should always enable it to avoid
casually close.

Make all of them critical,so that we don't have to each clock on its own
once things break.

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
[dropped the matching CLK_IGNORE_UNUSED flags]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-23 00:58:45 +01:00
Jacob Chen
cf9790e0fc clk: rockchip: use rk3288 vip_out clock ids
Reference the newly added vip clock-ids in the clock-tree.

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-22 17:08:01 +01:00
Linus Torvalds
f5e8c0ff56 One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
caused some of these clocks to turn off when they were always left
 on before.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
  caused some of these clocks to turn off when they were always left on
  before"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk/samsung: exynos542x: mark some clocks as critical
2017-01-21 18:46:45 -08:00
Fabio Estevam
6847c4c296 clk: imx7d: Add the OCOTP clock
Add the OCOTP so that this hardware block can be used.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:27:19 -08:00
Eric Anholt
3f9195811d clk: bcm2835: Add leaf clock measurement support, disabled by default
This proved incredibly useful during debugging of the DSI driver, to
see if our clocks were running at rate we requested.  Let's leave it
here for the next person interacting with clocks on the platform (and
so that hopefully we can just hook it up to debugfs some day).

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:56 -08:00
Eric Anholt
8a39e9fa57 clk: bcm2835: Register the DSI0/DSI1 pixel clocks.
The DSI pixel clocks are muxed from clocks generated in the analog phy
by the DSI driver.  In order to set them as parents, we need to do the
same name lookup dance on them as we do for our root oscillator.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:55 -08:00
Eric Anholt
55486091bd clk: bcm2835: Don't rate change PLLs on behalf of DSI PLL dividers.
Our core PLLs are intended to be configured once and left alone.  With
the SET_RATE_PARENT, asking to set the PLLD_DSI1 clock rate would
change PLLD just to get closer to the requested DSI clock, thus
changing PLLD_PER, the UART and ethernet PHY clock rates downstream of
it, and breaking ethernet.

We *do* want PLLH to change so that PLLH_AUX can be exactly the value
we want, though.  Thus, we need to have a per-divider policy of
whether to pass rate changes up.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:22:54 -08:00
Khiem Nguyen
c567fb37f1 clk: cs2000: add Suspend/Resume feature
CS2000 needs re-setup when redume, otherwise, it can't
handle correct clock rate.

Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@rvc.renesas.com>
[Kuninori: cleanup original patch]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:17:39 -08:00
Marek Vasut
3e1aec4e2c clk: vc5: Add support for IDT VersaClock 5P49V5923 and 5P49V5933
Add driver for IDT VersaClock 5 5P49V5923 and 5P49V5933 chips. These
chips have two clock inputs, XTAL or CLK, which are muxed into single
PLL/VCO input. In case of 5P49V5923, the XTAL in built into the chip
while the 5P49V5923 requires external XTAL.

The PLL feeds two fractional dividers. Each fractional divider feeds
output mux, which allows selecting between clock from the fractional
divider itself or from output mux on output N-1. In case of output
mux 0, the output N-1 is instead connected to the output from the mux
feeding the PLL.

The driver thus far supports only the 5P49V5923 and 5P49V5933, while
it should be easily extensible to the whole 5P49V59xx family of chips
as they are all pretty similar.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:17:34 -08:00
Stephen Boyd
060982670b A new clock-type for the 1-2 muxes per soc that are for whatever reason
controlled through the General Register Files, support for the rk3328
 clock-controller (including a new pll-type) and the usual clock ids and
 some fixes.
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Merge tag 'v4.11-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull Rockchip clk updates from Heiko Stuebner:

A new clock-type for the 1-2 muxes per soc that are for whatever reason
controlled through the General Register Files, support for the rk3328
clock-controller (including a new pll-type) and the usual clock ids and
some fixes.

* tag 'v4.11-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  dt-bindings: clk: add rockchip,grf property for RK3399
  clk: rockchip: use clock ids for memory controller parts on rk3066/rk3188
  clk: rockchip: use rk3288 isp_in clock ids
  clk: rockchip: add clock ids for memory controller parts on rk3066/rk3188
  clk: rockchip: add rk3288 isp_in clock ids
  clk: rockchip: Remove useless init of "grf" to -EPROBE_DEFER
  clk: rockchip: add clock controller for rk3328
  dt-bindings: add bindings for rk3328 clock controller
  clk: rockchip: add dt-binding header for rk3328
  clk: rockchip: add new pll-type for rk3328
  clk: rockchip: describe aclk_vcodec using the new muxgrf type on rk3288
  clk: rockchip: add a clock-type for muxes based in the grf
2017-01-20 15:51:55 -08:00
Stephen Boyd
d07ed23f4c clk/samsung updates for v4.11:
- addition of the CPU clock configuration data for Exynos4412
    Prime SoC variant,
  - removal of driver for deprecated Exynos4415 SoC,
  - switching from the syscore to regular system sleep PM ops
    in the audio subsystem clocks controller driver,
  - updates of the definitions of some "Network On Chip" related
    clocks.
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Merge tag 'clk-v4.11-samsung' of git://linuxtv.org/snawrocki/samsung into clk-next

Pull Samsung clk updates from Sylwester Nawrocki:

 - addition of the CPU clock configuration data for Exynos4412
   Prime SoC variant,
 - removal of driver for deprecated Exynos4415 SoC,
 - switching from the syscore to regular system sleep PM ops
   in the audio subsystem clocks controller driver,
 - updates of the definitions of some "Network On Chip" related
   clocks.

* tag 'clk-v4.11-samsung' of git://linuxtv.org/snawrocki/samsung:
  clk: samsung: Remove Exynos4415 driver (SoC not supported anymore)
  clk: samsung: exynos-audss: Replace syscore PM with platform device PM
  clk: samsung: exynos5433: Set NoC (Network On Chip) clocks as critical
  clk: samsung: Add CPU clk configuration data for Exynos4412 Prime
2017-01-20 15:49:47 -08:00
Lucas Stach
f4a0a6c309 clk: imx6: don't restrict LDB mux changes on QuadPlus
The LDB mux/gate layout has been fixed on QuadPlus, so there is no need
to restrict the LDB mux changes on this hardware, as the erratum
preventing this from working properly is gone.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 15:22:37 -08:00
Stephen Boyd
3a1ba8ba67 clk: renesas: Updates for v4.11
- Add CAN and MSIOF related clocks for R-Car M3-W.
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Merge tag 'clk-renesas-for-v4.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull renesas clk updates from Geert Uytterhoeven:

  - Add CAN and MSIOF related clocks for R-Car M3-W.

* tag 'clk-renesas-for-v4.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r8a7796: Add MSIOF controller clocks
  clk: renesas: r8a7796: Add CAN FD peripheral clock
  clk: renesas: r8a7796: Add CANFD clock
  clk: renesas: r8a7796: Add CAN peripheral clock
2017-01-20 15:17:50 -08:00
Icenowy Zheng
d0f11d14b0 clk: sunxi-ng: add support for V3s CCU
V3s has a similar but cut-down CCU to H3. Some muxes, especially clocks
about CSI, are different, which makes it to need a new CCU driver.

Add such a new driver for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-20 21:39:03 +01:00
Neil Armstrong
5a582cff47 clk: meson-gxbb: Export HDMI clocks
Export HDMI clock from internal to dt-bindings.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-01-18 10:17:53 -08:00
Xing Zheng
3e1531dbc3 clk: rockchip: fix the incorrect pclk_edp div width for RK3399
The range of the  pclk_edp_div_con is [13:8] and 6 bits, not 5.

Reported-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Tested-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-18 11:23:36 +01:00
Mylène Josserand
603a0c8af9 clk: sunxi-ng: a33: Add CLK_SET_RATE_PARENT to ac-dig
The audio DAI needs to set the clock rates of the ac-dig clock.
To make it possible, the parent PLL audio clock rates should
also be changed. This is possible via "CLK_SET_RATE_PARENT" flag.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-01-17 17:42:46 +01:00
Olof Johansson
0e1c1c7af4 Samsung DeviceTree update for v4.11:
1. Fixes for initial audio clocks configuration.
 2. Enable sound on Odroid-X board.
 3. Enable DMA for UART modules on Exynos5 SoCs.
 4. Add CPU OPPs for Exynos4412 Prime (newer version of Exynos4412). This pulls
    necessary change in the clocks.
 5. Remove Exynos4212. We do not have any mainline boards with it. This will
    simplify few bits later.
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Merge tag 'samsung-dt-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Samsung DeviceTree update for v4.11:
1. Fixes for initial audio clocks configuration.
2. Enable sound on Odroid-X board.
3. Enable DMA for UART modules on Exynos5 SoCs.
4. Add CPU OPPs for Exynos4412 Prime (newer version of Exynos4412). This pulls
   necessary change in the clocks.
5. Remove Exynos4212. We do not have any mainline boards with it. This will
   simplify few bits later.

* tag 'samsung-dt-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: remove Exynos4212 support (dead code)
  ARM: dts: exynos: Add CPU OPPs for Exynos4412 Prime
  clk: samsung: Add CPU clk configuration data for Exynos4412 Prime
  ARM: dts: exynos: Enable DMA support for UART modules on Exynos5 SoCs
  ARM: dts: exynos: Cleanup Odroid-X2 and enable sound on Odroid-X
  ARM: dts: exynos: Fix initial audio clocks configuration on Exynos4 boards
  ARM: dts: exynos: Correct clocks for Exynos4 I2S module

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-16 22:30:21 -08:00
Krzysztof Kozlowski
cb4ac949ea clk: samsung: Remove Exynos4415 driver (SoC not supported anymore)
Support for Exynos4415 is going away because there are no internal nor
external users.

Since commit 46dcf0ff0de3 ("ARM: dts: exynos: Remove exynos4415.dtsi"),
the platform cannot be instantiated so remove also the drivers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Kukjin Kim <kgene@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-01-16 11:33:38 +01:00
Heiko Stuebner
9dd9dd894a clk: rockchip: use clock ids for memory controller parts on rk3066/rk3188
Add the newly added clock ids to the clock entries of the rk3066/rk3188
clock driver. We won't be needing them in the kernel for a bit yet
but as they're used in the new u-boot ddr setup code/dts we should make
sure the clock ids stay identical and do not differ.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-13 17:32:55 +01:00
Jacob Chen
c5d032d398 clk: rockchip: use rk3288 isp_in clock ids
Reference the newly added isp clock-ids in the clock-tree.

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-01-13 17:13:48 +01:00
Arnd Bergmann
89d5dcc48c clk: stm32f4: avoid uninitialized variable access
The failure path in the newly added function tries to free an
uninitialized pointer:

drivers/clk/clk-stm32f4.c: In function 'stm32f4_rcc_init':
drivers/clk/clk-stm32f4.c:1106:4: error: 'gate' may be used uninitialized in this function [-Werror=maybe-uninitialized]

I'm adding an initialization to NULL here to make the kfree()
succeed, and I'm also rearranging the cleanup so that the
same kfree() is used for any error path, making the function
slightly more robust against newly introduced bugs in the
error handling.

Fixes: daf2d117cbca ("clk: stm32f4: Add lcd-tft clock")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-12 14:06:07 -08:00
Stephen Boyd
545643fddb Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk/samsung: exynos542x: mark some clocks as critical
2017-01-09 16:45:06 -08:00
Akinobu Mita
5508124ccc clk: cdce925: add support for CDCE913, CDCE937, and CDCE949
The CDCE925 is a member of the CDCE(L)9xx programmable clock generator
family.  There are also CDCE913, CDCE937, CDCE949 which have different
number of PLLs and outputs.

The clk-cdce925 driver supports only CDCE925 in the family.  This adds
support for the CDCE913, CDCE937, CDCE949, too.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Cc: Michael Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:38:30 -08:00
Zoran Markovic
8e18d06589 clk: mdm9615: Add EBI2 clock
Add definition of EBI2 clock used by MDM9615 NAND controller.

Cc: Andy Gross <andy.gross@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-soc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Zoran Markovic <zmarkovic@sierrawireless.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
[sboyd@codeaurora.org: ebi2_clk halt bit is 24 not 23]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:33:26 -08:00
Masahiro Yamada
5c48ea1ebc clk: uniphier: remove unneeded #include <linux/delay.h>
This include was needed to suppress build error when this driver
was initially merged because <linux/regmap.h> did not include
<linux/delay.h> at that time.  (developers' headache across
sub-systems)

The root cause has been fixed by commit adf08d481b52 ("regmap:
include <linux/delay.h> from include/linux/regmap.h"), so this
line can be dropped now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:27:28 -08:00
Thomas Petazzoni
0c70ffc5f3 clk: mvebu: adjust AP806 CPU clock frequencies to production chip
This commit adjusts the list of possible "Sample At Reset" values that
define the CPU clock frequency of the AP806 (part of Marvell Armada
7K/8K) to the values that have been validated with the production
chip. Earlier values were preliminary.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:26:42 -08:00
Stephen Boyd
a2d6ef3a23 Merge branch 'clk-hi3660' into clk-next
* clk-hi3660:
  clk: hisilicon: Add clock driver for hi3660 SoC
  dt-bindings: Document the hi3660 clock bindings
2017-01-09 16:26:30 -08:00
Zhangfei Gao
d374e6fd50 clk: hisilicon: Add clock driver for hi3660 SoC
Add clock drivers for hi3660 SoC, this driver controls the SoC
registers to supply different clocks to different IPs in the SoC.

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
[sboyd@codeaurora.org: Simplify probe with function pointer]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:20:38 -08:00
Marek Szyprowski
318fa46cc6 clk/samsung: exynos542x: mark some clocks as critical
Some parent clocks of the Exynos542x clock blocks, which have separate
power domains (like DISP, MFC, MSC, GSC, FSYS and G2D) must be always
enabled to access any register related to power management unit or devices
connected to it. For the time being, until a proper solution based on
runtime PM is applied, mark those clocks as critical (instead of ignore
unused or even no flags) to prevent disabling them.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> [Exynos5800 Peach Pi Chromebook]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:11:05 -08:00
Geert Uytterhoeven
e2d7933308 clk: clk-conf: Do not print error messages if EPROBE_DEFER
EPROBE_DEFER is not an error, hence printing an error message like

	clk: couldn't get clock 0 for /soc/display@feb00000

may confuse the user.

Suppress error messages in case of probe deferral to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:09:05 -08:00
Sudeep Holla
67bcc2c5f1 clk: scpi: don't add cpufreq device if the scpi dvfs node is disabled
Currently we add the virtual cpufreq device unconditionally even when
the SCPI DVFS clock provider node is disabled. This will cause cpufreq
driver to throw errors when it gets initailised on boot/modprobe and
also when the CPUs are hot-plugged back in.

This patch fixes the issue by adding the virtual cpufreq device only if
the SCPI DVFS clock provider is available and registered.

Fixes: 9490f01e2471 ("clk: scpi: add support for cpufreq virtual device")
Reported-by: Michał Zegan <webczat_200@poczta.onet.pl>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Michał Zegan <webczat_200@poczta.onet.pl>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:08:19 -08:00