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- New boards support: imx51-ts4800, imx6q-novena, CompuLab imx7d SoM/SBC,
vf610m4-cosmic
- Add ADC device support for imx6ul and imx7d
- Remove config space from PCIe controller ranges property for i.MX6
- Add Vivante GPU nodes for i.MX6
- Add DCU, LCD, and SATA devices for LS1021A
- A series to update Ventana gw5xxx boards getting HDMI and LVDS to work
simultaneously and devices like PWM and SPI added
- Quite a few random cleanups and minor updates
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Merge tag 'imx-dt-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
The i.MX device tree updates for 4.5:
- New boards support: imx51-ts4800, imx6q-novena, CompuLab imx7d SoM/SBC,
vf610m4-cosmic
- Add ADC device support for imx6ul and imx7d
- Remove config space from PCIe controller ranges property for i.MX6
- Add Vivante GPU nodes for i.MX6
- Add DCU, LCD, and SATA devices for LS1021A
- A series to update Ventana gw5xxx boards getting HDMI and LVDS to work
simultaneously and devices like PWM and SPI added
- Quite a few random cleanups and minor updates
* tag 'imx-dt-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (50 commits)
ARM: dts: imx7d: sbc-imx7: add basic board support
ARM: dts: imx7d: cl-som-imx7: add basic module support
ARM: dts: TS-4800: add touchscreen support
ARM: dts: ts-4800: Add LCD support
ARM: dts: imx6q: add Novena board
devicetree: bindings: Add vendor prefix for Kosagi
ARM: dts: TS-4800: use weim IP to map the FPGA
ARM: dts: TS-4800: drop uart rts/cts pin reservations
ARM: dts: imx6: add Vivante GPU nodes
ARM: dts: imx28: add alternate auart4 pinmux
ARM: dts: ls1021a: add sata node to dts
ARM: dts: TS-4800: add basic device tree
of: documentation: add bindings documentation for TS-4800
of: add vendor prefix for Technologic Systems
ARM: dts: imx7d-sdb: add ADC support
ARM: dts: imx7d.dtsi: add ADC support
ARM: dts: vf-colibri: add CAN support
ARM: mxs: dt: cfa10057: fix backlight PWM
ARM: dts: imx6qdl: move GIC to right location in DT
ARM: dts: imx6qdl: add IPU aliases
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Add support for the Dove PLL dividers, which are used to generate the
clocks for the AXI bus, as well as the GPU and VMeta peripherals.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
drivers/clk/samsung updates (mostly bug fixes):
- instantiation of the cpu clocks and addition of the GSCL
IP parent clocks to the list of available consumer clocks
for exynos542x SoCs;
- MFC IP parent clock fix for exynos542x;
- fix of locking bug in samsung/clk-cpu.c which caused
system crashes with cpufreq enabled;
- minor cleanup for s3c2410.
The i.MX clock updates for 4.5:
- Add is_prepared function callback for pllv3 clock driver
- Use imx_check_clocks() on imx6ul and imx7d clock drivers to save
some code
- Add a core clock for imx7d to support generic cpufreq driver
- Support imx6q clock routing with OSC to anaclk2/2b
- To support more precise pixel clocks on imx5, allow ipu_di_sel clock
selectors to influence the PLLs that they are derived from
- A cleanup on imx25 OSC clock
Rockchip clock changes for 4.5 containing
- a new pll-type used on rk3036 and other Cortex-A7 socs
- new clock-trees for rk3036 and rk3228
- switch rk3288 plls to slow mode on reboot
- a bunch of new clock ids
- some more critical clocks
- wrong register offsets for the rk3368 cpuclks
- allowing more than 2 parents for the cpuclk
This code is unreadable due to the blank line between if and else
blocks.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
As commit 1d33929e2a2b ("clk: rockchip: switch PLLs to slow mode before
reboot for rk3288") states, switching the PLLs to slow-mode is only
necessary when rebooting using the soft-reset done through the CRU.
The dwc2 controllers used create really big number of interrupts in
special constellations involving usb-hubs and their number is so high,
it can even overwhelm the interrupt handler if the cpu-speed os to low.
Right now the PLLs are put into slow-mode in a shutdown syscore_ops
callback which means it happens on all reboots (not only the soft-reset
ones) and even on poweroff actions.
This can result in the system not powering off and getting stuck instead,
so we should move the slow-mode change nearer to the actual reboot action.
For this we introduce the possiblity to also set a callback that gets
called from the restart-handler directly prior to restarting the system
and move the shutdown-callback to this new option.
With this the slow-mode switch is done only on the necessary reboots
and also has a smaller possibility of causing artifacts.
Fixes: 1d33929e2a2b ("clk: rockchip: switch PLLs to slow mode before reboot for rk3288")
Signed-off-by: Heiko Stuebner <heiko.stuebner@collabora.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
The 'fixes' branch contains d5d4fdd86f57 ("irqchip/versatile-fpga:
Fix PCI IRQ mapping on Versatile PB") that is required for booting
the versatile platform prior to the rework in this branch, but
including both causes a build-time error.
I'm doing an evil merge here to pull in the fixes branch so we have
that commit included but at the same time revert the trivial change.
This gives us a bisectable history.
* fixes: (22 commits)
fsl-ifc: add missing include on ARM64
ls2080a/dts: Add little endian property for GPIO IP block
dt-bindings: define little-endian property for QorIQ GPIO
ARM64: dts: ls2080a: fix eSDHC endianness
ARM: dts: vf610: use reset values for L2 cache latencies
ARM: pxa: use PWM lookup table for all machines
ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
ARM: dts: am4372: fix clock source for arm twd and global timers
ARM: at91: fix pinctrl driver selection
ARM: at91/dt: add always-on to 1.8V regulator
ARM: dts: vf610: fix clock definition for SAI2
ARM: imx: clk-vf610: fix SAI clock tree
ARM: ixp4xx: fix read{b,w,l} return types
irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
ARM: dts: add dm816x missing spi DT dma handles
ARM: dts: add dm816x missing #mbox-cells
cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
bus: sunxi-rsb: unlock on error in sunxi_rsb_read()
...
This fixes a bug in tegra_clk_register_pllss() which mistakenly assume
the IDDQ register is the PLL base address.
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This fixes two things.
- Read the correct IDDQ register
- Check the correct IDDQ bit position
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Without this change clk_get_rate would return the final output
rather than the VCO output as it would factor in the pdiv when
it shouldn't. This will cause problems for all dividers in the
subtree of the VCO PLL.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Super clock divider control and clock source mux of Tegra210 has changed
a little against prior SoCs, this patch adds Gen5 logic to address those
differences.
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add some logic for Spread Spectrum control. It is used in conjuncture
with SDM fractional dividers. SSC has to be disabled when we configure
the divider settings.
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a callback to the pll_params for custom dynamic ramping
functions which can be specified per PLL.
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add logic which (if specified for a pll) can verify that a PLL is set
to the proper default value and if not can set it. This can be
specified per PLL as each will have different default values.
Based on original work by Aleksandr Frid <afrid@nvidia.com>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This code makes use of the SDM fractional divider if present to
constrain the allowable programming range of the PLL divider register
bitfields to take advantage of higher frequency granularity that can
be induced by the SDM divider.
Based on original work by Aleksandr Frid <afrid@nvidia.com>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra210 SoC's have 2 PLLs for memory usage. Add plumbing to register
and handle PLLMB.
PLLMB is used to allow switching between 2 PLLM's without having to use
and intermediate backup PLL, as we need to lock the PLL before we can
switch to it.
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
On Tegra210 SoC's, the logic to enable several of the plls is different
from previous generations. Therefore, add registration functions specific
to Tegra210 which will handle them appropriately.
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
ACLK_VIO is the noc bus clock for display module, display cann't
read data from ddr without this clock enabled.
Due to it shouldn't belong to any driver, but we need it enabled,
so just mark it as the CLK_IGNORE_UNUSED flag.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Proper source for MFC block is mout_user_aclk333 (in datasheet named
USER_MUX_ACLK_333), not the output of CLKDIV_ACLK_333 MUX.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Fix cpu clock configuration data for Exynos5422/5800 SoCs
(they use higher PCLK_DBG divider values than Exynos5420 and
support additional frequencies).
Based on Hardkernel's kernel for ODROID-XU3 board.
Cc: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
With the addition of the new Samsung specific cpu-clock type, the
arm clock can be represented as a cpu-clock type. Add the CPU clock
configuration data and instantiate the CPU clock type for Exynos5420.
Changes by Bartlomiej:
- split Exynos5420 support from the original patches
- moved E5420_[EGL,KFC]_DIV0() macros to clk-exynos5420.c
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This patch adds clocks, which are required for preserving parent clock
configuration on GSCL power domain on/off.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
multiplatform and extended DT support.
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Merge tag 'realview-base-armsoc-1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/multiplatform
Merge "Realview multiplatform support" from Linus Walleij:
The board and infrastructure changes for RealView
multiplatform and extended DT support.
* tag 'realview-base-armsoc-1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: realview: add an DT SMP boot method
ARM: realview: select SP810 and ICST for the DT variant
soc: versatile: add support for the PB11MPCore
clk: versatile-icst: add device tree support
clk: versatile-icst: refactor to allocate regmap separately
clk: versatile-icst: convert to use regmap
ARM: realview: remove private barrier implementation
ARM: no longer force unbuffered DMA for realview
clk/realview: stop using machine headers
ARM: realview: don't map undefined PCI registers
ARM: realview: remove sparsemem hack
Conflicts:
drivers/clk/versatile/Kconfig
Merge "ARM Versatile multi-platform support" from Rob Herring:
Arnd lit a fire under me to dust this off and get it merged. So here it
is. The main change from prior version is I merged all the code to a
single file. It's a bigger patch than I'd like, but I don't think trying
to do it in multiple steps is worth it.
This is dependent on some solution for the default platform choice on
!MMU builds (allnoconfig) as it can't be Versatile after this series.
Arnd has some ideas on how to address that.
This is tested under QEMU. Linus previously tested this on actual h/w
and had a problem with the display identification which needs
investigation or agreement to worry about it if and when someone
actually cares.
* versatile/multiplatform:
ARM: versatile: convert to multi-platform
ARM: versatile: merge mach code into a single file
ARM: versatile: switch to DT only booting and remove legacy code
ARM: versatile: add DT based PCI detection
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
With DT support for clocks, irqchips, timers, and PCI now in place, DT
based booting has feature parity with non-DT legacy boot. The final
piece is actually enabling common clock support on Versatile. Enabling
full DT support requires either removing the old Versatile clock code,
updating the legacy boot to use the common clock code, or making DT and
legacy boot mutually exclusive. Given that removing legacy boot code is
the goal anyway, I am going with the 1st option.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds support for the ARM syscon ICST clocks to initialized
directly from the device tree syscon node on ARM Integrator,
Versatile and RealView reference designs.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Break out the registration function so it creates a regmap and
pass to the setup function, so the latter can be shared with
a device tree probe function that already has a regmap.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Instead of passing around register bases, pass around a regmap
in this driver. This refactoring make things so much easier when
we later want to manage an ICST that is part of a syscon.
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In order to move realview into multiplatform, we have to prevent device
drivers from accessing the machine header files.
In case of the clk driver, this is very simple, we just copy the
small set of register definitions into the driver that needs them.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The function can return negative values, so its result should
be assigned to signed variable.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
"index" needs to be signed for the error handling to work.
Fixes: ab6e23a4e388 ('clk: sunxi: Add H3 clocks support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Here are a bunch of small bug fixes for various ARM platforms, nothing
really sticks out this week, most of either fixes bugs in code that was
just added in 4.4, or that has been broken for many years without anyone
noticing.
at91/sama5d2
- fix sama5de hardware setup of sd/mmc interface
- proper selection of pinctrl drivers. PIO4 is necessary for sama5d2
berlin
- fix incorrect clock input for SDIO
exynos
- Fix potential NULL pointer dereference in Exynos PMU driver.
imx
- Fix vf610 SAI clock configuration bug which is discovered by
the newly added master mode support in SAI audio driver.
- Fix buggy L2 cache latency values in vf610 device trees, which may
cause system hang when cpu runs at a higher frequency.
ixp4xx
- fix prototypes for readl/writel functions
ls2080a
- use little-endian register access for GPIO and SDHCI
omap
- Fix clock source for ARM TWD and global timers on am437x
- Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of
when MACH_OMAP3_PANDORA is selected
- Fix SPI DMA handles for dm816x as only some were mapped
- Fix up mbox cells for dm816x to make mailbox usable
pxa
- use PWM lookup table for all ezx machines
s3c24xx
- Remove incorrect __init annotation from s3c24xx cpufreq driver structures.
versatile
- fix PCI IRQ mapping on Versatile PB
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Here are a bunch of small bug fixes for various ARM platforms, nothing
really sticks out this week, most of either fixes bugs in code that
was just added in 4.4, or that has been broken for many years without
anyone noticing.
at91/sama5d2:
- fix sama5de hardware setup of sd/mmc interface
- proper selection of pinctrl drivers. PIO4 is necessary for sama5d2
berlin:
- fix incorrect clock input for SDIO
exynos:
- Fix potential NULL pointer dereference in Exynos PMU driver.
imx:
- Fix vf610 SAI clock configuration bug which is discovered by the
newly added master mode support in SAI audio driver.
- Fix buggy L2 cache latency values in vf610 device trees, which may
cause system hang when cpu runs at a higher frequency.
ixp4xx:
- fix prototypes for readl/writel functions
ls2080a:
- use little-endian register access for GPIO and SDHCI
omap:
- Fix clock source for ARM TWD and global timers on am437x
- Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of when
MACH_OMAP3_PANDORA is selected
- Fix SPI DMA handles for dm816x as only some were mapped
- Fix up mbox cells for dm816x to make mailbox usable
pxa:
- use PWM lookup table for all ezx machines
s3c24xx:
- Remove incorrect __init annotation from s3c24xx cpufreq driver
structures.
versatile:
- fix PCI IRQ mapping on Versatile PB"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ls2080a/dts: Add little endian property for GPIO IP block
dt-bindings: define little-endian property for QorIQ GPIO
ARM64: dts: ls2080a: fix eSDHC endianness
ARM: dts: vf610: use reset values for L2 cache latencies
ARM: pxa: use PWM lookup table for all machines
ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
ARM: dts: am4372: fix clock source for arm twd and global timers
ARM: at91: fix pinctrl driver selection
ARM: at91/dt: add always-on to 1.8V regulator
ARM: dts: vf610: fix clock definition for SAI2
ARM: imx: clk-vf610: fix SAI clock tree
ARM: ixp4xx: fix read{b,w,l} return types
irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE
ARM: dts: add dm816x missing spi DT dma handles
ARM: dts: add dm816x missing #mbox-cells
cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init
ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
Reference the newly added efuse clock-ids in the clock-tree.
Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Add the clock tree definition for the new rk3228 SoC.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
RK3228's armclk has 3 parents, so allow cpuclk to have
more than 2 parents.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The APBS clock on sun9i is the same as the APB0 clock on sun8i. With
sun9i we are supporting the PRCM clocks by using CLK_OF_DECLARE,
instead of through a PRCM mfd device and subdevices for each clock
and reset control. As such we need a CLK_OF_DECLARE version of
the sun8i-a23-apb0-clk driver.
Also, build it for sun9i/A80, and not just for configurations with
MFD_SUN6I_PRCM enabled.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Add a new R-Car H3 Clock Pulse Generator / Module Standby and Software
Reset driver, using the new CPG/MSSR driver core.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add the common core for the new Renesas Clock Pulse Generator / Module
Standby and Software Reset driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Renesas DIV6 clocks provide a single clock output. Hence make the
"clock-output-names" DT property optional instead of mandatory. In case
the DT property is omitted the DT node name will be used.
Rename the variable "name" to "clk_name" to make the code more similar
with fixed-factor-clock.c, and to avoid a conflict with a nested local
variable while we're at it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Shmobile is all multiplatform these days, so get rid of the reference to
CONFIG_ARCH_SHMOBILE_MULTI in drivers/clk/shmobile/.
Also instead of always enabling DIV6 and MSTP adjust the Makefile
to enable DIV6 and MSTP depending on if they are included in the
SoC or not.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
