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2013-04-03sh-pfc: r8a73a4: GPIO IRQ supportMagnus Damm1-0/+63
V2 of code to add GPIO -> IRQ mappings to the PFC table for the r8a73a4 SoC. Requires the IRQs to be mapped at a fixed location in Linux IRQ space. The actual IRQs are not handled by the PFC, instead IRQC is used on r8a73a4. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: r8a73a4: Support sparse GPIO numbersMagnus Damm1-0/+16
The r8a73a4 SoC has sparse GPIO numbers. Declare ranges for pin numbers in the PFC SoC data. Pin numbers shall be used with the GPIO API from this point on. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: Add r8a73a4 pinmux supportMagnus Damm5-0/+2836
Add initial PFC support for the r8a73a4 SoC. At this point only GPIO interface is supported, move to newer interfaces planned as incremental changes. Original authors are Morimoto-san with help from Yoshii-san, thanks to them for the heavy lifting. Adjusted by Magnus to work together with updated code in drivers/pinctrl. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: r8a7779: Split DU input and output pixel clocksLaurent Pinchart1-21/+39
The output pixel clocks can be used without the input pixel clocks. Split them in different groups. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: r8a7779: Remove GPIO dataLaurent Pinchart1-57/+1
GPIOs are now handled by a separate driver, remove GPIO data from the SoC information structure. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: Configure pins as GPIOs at request time when handled externallyLaurent Pinchart2-21/+27
When a GPIO is handled by a separate driver the pinmux gpio_set_direction() handler won't be called. The pin mux type then need to be configured to GPIO at request time. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: Skip gpiochip registration when no GPIO resource is foundLaurent Pinchart1-18/+21
Boards/platforms that register dedicated GPIO devices will not supply a memory resource for GPIOs. Try to locate the GPIO memory resource at initialization time, and skip registration of the gpiochip if the resource can't be found. This is a temporary modification to ease the transition to separate GPIO drivers. It should be reverted when all boards and platforms will have been moved. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: Make GPIO support optionalLaurent Pinchart1-0/+3
When implemented as a separate IP block, GPIOs should be handled by a separate driver. To make this possible GPIO support needs to be optional in the sh-pfc driver. If no GPIO data registers are supplied in the SoC information structure skip registration of the gpiochip. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-03sh-pfc: Make function GPIOs support optionalLaurent Pinchart1-0/+3
The target is to get rid of function GPIOs completely. To reach this, make function GPIOs support optional by skipping the function GPIO chip registration if no function GPIOS are defined in SoC data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-02sh-pfc: r8a7779: Don't use GPIO enum entriesLaurent Pinchart1-25/+69
Refactor the GPIO macro magic to use GPIO numbers directly instead of the GPIO_GP_x_y enum entries. This will allow removing the GPIO enum entries from the mach/r8a7779.h header. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-02sh-pfc: r8a7779: Remove function GPIOsLaurent Pinchart1-271/+0
All r8a7779 platforms use the pinctrl API to control functions. Function GPIOs are unused and unneeded, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-02sh-pfc: Fix compiler warning when BUG()Laurent Pinchart1-0/+1
The sh_pfc_phys_to_virt() function ends with a BUG() statement without a return. When CONFIG_BUG isn't set the function will thus have no return value. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-04-02Merge branch 'soc' into pinmux-baseSimon Horman2-35/+35
Conflicts: drivers/pinctrl/sh-pfc/pfc-r8a7740.c This merge is to provide r8a73a4 SoC files, which are added in the soc branch and depended on by r8a73a4 pfc-changes which are to be added to the pinmux branch.
2013-04-02ARM: shmobile: r8a7740: Migrate from INTC to GICBastian Hecht1-32/+32
With the added capabilty of the intc_irqpin driver to handle shared external IRQs, all prerequisites are fulfilled and we are ready to migrate completely to GIC. This includes the following steps: - Kconfig: select ARM_GIC and RENESAS_INTC_IRQPIN - intc-r8a7740: Throw out all legacy INTC code and init the GIC. We need to mask out all shared IRQs as it is needed by the shared intc_irqpin driver. - setup-r8a7740: Add 4 irqpin devices to handle external IRQs and update all IRQ numbers to point to the GIC SPI. - board-armadillo: Update all IRQ numbers to point to the GIC SPI. - pfc-r8a7740: Update all IRQ numbers of the GPIOs to point to the GIC SPI. Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-27pinctrl: mvebu: prevent walking off the end of group arrayDavid Woodhouse1-12/+21
While investigating (ab)use of krealloc, David found this bug. It's unlikely to occur, but now we detect the condition and error out appropriately. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: re-enable old state in case of error in pinctrl_select_stateRichard Genoud1-1/+19
If a new state is applied, the groups configured in the old state but not in the new state are disabled. If something goes wrong and the new state can't be applied, we have to re-enable those groups. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: disable and free setting in select_state in case of errorRichard Genoud1-3/+25
If enabling a pin fails in pinctrl_select_state_locked(), all the previous enabled pins have to be disabled to get back to the previous state. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: create pinctrl_free_setting functionRichard Genoud1-13/+19
This prepares the implementation of pinctrl_select_state_locked() free code. No functionnal change. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: fix typo in headerRichard Genoud1-1/+1
Clearly, "node" was meant instead of "not" Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: sirf: using for_each_set_bit to simplify the codeWei Yongjun1-8/+2
Using for_each_set_bit() to simplify the code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: coh901: Fix checkpatch errorSachin Kamat1-1/+1
Fixes the following checkpatch error: ERROR: space required before the open parenthesis '(' Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: generic: Fix checkpatch errorsSachin Kamat1-3/+3
Fixes the following type of checkpatch errors: ERROR: space required before the open parenthesis '(' Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: generic: Make 'conf_items' staticSachin Kamat1-1/+1
'conf_items' is used only in this file. Silences the below sparse warning: drivers/pinctrl/pinconf-generic.c:37:24: warning: symbol 'conf_items' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: at91: Fix checkpatch errorsSachin Kamat1-8/+9
Fixes the following types of checkpatch errors: ERROR: "foo * bar" should be "foo *bar" ERROR: "foo* bar" should be "foo *bar" ERROR: space required before the open parenthesis '(' ERROR: "(foo*)" should be "(foo *)" ERROR: space required after that ',' (ctx:WxV) ERROR: "(foo*const*)" should be "(foo *const*)" ERROR: space required before that '*' (ctx:VxB) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: at91: Remove duplicate constSachin Kamat1-2/+2
const declared twice. Fixes the following sparse warning: drivers/pinctrl/pinctrl-at91.c:815:21: warning: duplicate const drivers/pinctrl/pinctrl-at91.c:849:21: warning: duplicate const Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: exynos5440: fix invalid use of sizeof in exynos5440_pinctrl_probe()Wei Yongjun1-1/+1
sizeof() when applied to a pointer typed expression gives the size of the pointer, not that of the pointed data. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl/nomadik: Fix checkpatch errorsSachin Kamat1-3/+3
Fixes the following types of checkpatch errors: ERROR: space required after that ',' (ctx:VxV) ERROR: space prohibited before that close parenthesis ')' Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl/nomadik-db8500: Fix checkpatch errorsSachin Kamat1-2/+2
Silences the following type of checkpatch errors: ERROR: space required after that ',' (ctx:VxV) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27pinctrl: remove pxa pinctrl driverHaojian Zhuang7-2892/+0
pinctrl-pxa driver doesn't support well on DT mode. Now pinctrl-single could support DT mode & pin configuration. Use pinctrl-single driver to support MMP/PXA silicons instead. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-26arm: Move chained_irq_(enter|exit) to a generic fileCatalin Marinas5-7/+5
These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
2013-03-25pinctrl: sirf: convert to linear irq domainArnd Bergmann1-8/+4
The sirf platforms use no hardcoded IRQ numbers, so there is no reason to use the legacy domain, and by converting to the linear domain, we get a more efficient representation of sparse IRQs and remove the dependency on the mach/irqs.h header file. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Linus Walleij <linus.walleij@linaro.org>
2013-03-24Merge tag 'pinctrl-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds5-4/+9
Pull pinctrl fixes from Linus Walleij: "Here are a few pinctrl fixes for the v3.9 rc series: - Usecount bounds checking so we do not go below zero on mux usecounts. - Loop range checking in GPIO ranges in the DT range parser. - Proper print in debugfs for pinconf state. - Fix compilation bug in generic pinconf code. - Minor bugfixes to abx500 and mvebu drivers." * tag 'pinctrl-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinmux: forbid mux_usecount to be set at UINT_MAX pinctrl: mvebu: fix checking for SoC specific controls pinctrl: generic: Fix compilation error pinctrl: Print the correct information in debugfs pinconf-state file pinctrl: abx500: Fix checking if pin use AlternateFunction register gpio: fix wrong checking condition for gpio range
2013-03-21pinmux: forbid mux_usecount to be set at UINT_MAXRichard Genoud1-0/+5
If pin_free is called on a pin already freed, mux_usecount is set to UINT_MAX which is really a bad idea. This will issue a warning, so that we can correct the code responsible for the double free. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-21pinctrl: mvebu: fix checking for SoC specific controlsSimon Guinot1-1/+1
This patch fixes a minor bug (probably due to a typo) while checking the SoC specific controls in mvebu_pinctrl_probe(). Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-21Merge tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/driversArnd Bergmann1-3/+3
From Simon Horman <horms+renesas@verge.net.au>: Renesas INTC External IRQ pin driver This provides two new INTC drivers for use with Renesas ARM-based SoCs and makes use of them on the r8a7779 and sh73a0 SoCs. It has been agreed by the relevant parties, Thomas Gleixner, Magnus Damm, and myself that it would be best to merge this code through the renesas tree and thus through the arm-soc tree. This is based on: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git renesas-soc-v3.10 * tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: irqchip: irqc: Add DT support irqchip: intc-irqpin: Initial DT support ARM: shmobile: Make r8a7779 INTC irqpin platform data static ARM: shmobile: Make sh73a0 INTC irqpin platform data static irqchip: Renesas IRQC driver irqchip: intc-irqpin: GPL header for platform data irqchip: intc-irqpin: Make use of devm functions irqchip: intc-irqpin: Add force comments irqchip: intc-irqpin: Cache mapped IRQ irqchip: intc-irqpin: Whitespace fixes ARM: shmobile: INTC External IRQ pin driver on r8a7779 ARM: shmobile: INTC External IRQ pin driver on sh73a0 ARM: shmobile: irq_pin() for static IRQ pin assignment irqchip: Renesas INTC External IRQ pin driver Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-18ARM: shmobile: INTC External IRQ pin driver on sh73a0Magnus Damm1-3/+3
Adjust the sh73a0 IRQ code to make use of the INTC External IRQ pin driver for external interrupt pins IRQ0 -> IRQ31. This removes quite a bit of special-case code in intc-sh73a0.c but the number of lines get replaced with platform device information in setup-sh73a0.c. The PFC code is also adjusted to make gpio_to_irq() return the correct interrupt number. At this point the DT reference implementations are not covered. In the future such code shall tie in the INTC External IRQ pin driver via DT, so this kind of verbose code is not needed for the long term DT case. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-15sh-pfc: r8a7779: Remove INTC function GPIOSLaurent Pinchart1-8/+7
All r8a7779 platforms now use the pinctrl API to control the INTC pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove LBSC function GPIOSLaurent Pinchart1-8/+6
All r8a7779 platforms now use the pinctrl API to control the LBSC pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove USB function GPIOSLaurent Pinchart1-4/+4
All r8a7779 platforms now use the pinctrl API to control the USB pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove HSPI function GPIOSLaurent Pinchart1-27/+27
All r8a7779 platforms now use the pinctrl API to control the HSPI pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove SCIF function GPIOSLaurent Pinchart1-72/+69
All r8a7779 platforms now use the pinctrl API to control the SCIF pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove SDHI and MMCIF function GPIOSLaurent Pinchart1-56/+56
All r8a7779 platforms now use the pinctrl API to control the SDHI and MMCIF pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7779: Remove DU1_DOTCLKOUT1 GPIOLaurent Pinchart1-5/+4
The function is not documented in the r8a7779 datasheet. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7740: Remove SDHI and MMCIF function GPIOSLaurent Pinchart1-35/+0
All r8a7740 platforms now use the pinctrl API to control the SDHI and MMCIF pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: r8a7740: Remove LCD0 and LCD1 function GPIOSLaurent Pinchart1-37/+0
All r8a7740 platforms now use the pinctrl API to control the LCD0 and LCD1 pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: sh73a0: Remove IrDA function GPIOSLaurent Pinchart1-6/+0
All sh73a0 platforms now use the pinctrl API to control the IrDA pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: sh73a0: Remove USB function GPIOSLaurent Pinchart1-2/+1
All sh73a0 platforms now use the pinctrl API to control the USB pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: sh73a0: Remove BSC function GPIOSLaurent Pinchart1-27/+0
All sh73a0 platforms now use the pinctrl API to control the BSC pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: sh73a0: Remove KEYSC function GPIOSLaurent Pinchart1-30/+0
All sh73a0 platforms now use the pinctrl API to control the KEYSC pins, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-15sh-pfc: sh73a0: Remove pull-up function GPIOSLaurent Pinchart1-442/+23
All sh73a0 platforms now use the pinconf API to control pull-ups, the corresponding function GPIOS are unused. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
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