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path: root/drivers/pinctrl/pinctrl-imx.c
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2014-09-04pinctrl: imx/mxs: move freescale drivers to subdirLinus Walleij1-630/+0
This moves all the Freescale-related drivers (i.MX and MXS) to its own subdirectory to clear the view. Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Anson Huang <b20788@freescale.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Denis Carikli <denis@eukrea.com> Cc: Markus Pargmann <mpa@pengutronix.de> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-04pinctrl: clean up after enable refactoringLinus Walleij1-3/+3
commit 2243a87d90b42eb38bc281957df3e57c712b5e56 "pinctrl: avoid duplicated calling enable_pinmux_setting for a pin" removed the .disable callback from the struct pinmux_ops, making the .enable() callback the only remaining callback. However .enable() is a bad name as it seems to imply that a muxing can also be disabled. Rename the callback to .set_mux() and also take this opportunity to clean out any remaining mentions of .disable() from the documentation. Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Acked-by: Fan Wu <fwu@marvell.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11pinctrl: pinctrl-imx.c: Cleaning up if unsigned is less than zeroRickard Strandqvist1-1/+1
Remove checking if a unsigned is less than zero This was found using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22pinctrl: pinctrl-imx: Print the mux_mode field in hex formatFabio Estevam1-1/+1
With debug enabled we get better readability dumps of the mux_mode register if we use hexadecimal format instead: imx6sl-pinctrl 20e0000.iomuxc: MX6SL_PAD_FEC_REF_CLK: 0x10 0x0001b0a8 Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25pinctrl: imx: Fix pin name in debug message.Martin Fuzzey1-1/+1
The wrong index counter was being used, causing the debug message to show an incorrect pin name. Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-04pinctrl: imx: fix using pin->input_val wronglyPeter Chen1-3/+3
The commit: "pinctrl: imx: Use struct type for pins" relaced pin->input_reg by pin->input_val wrongly, fix it at this commit. Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28pinctrl: Pass all configs to driver on pin_config_set()Sherman Yin1-12/+16
When setting pin configuration in the pinctrl framework, pin_config_set() or pin_config_group_set() is called in a loop to set one configuration at a time for the specified pin or group. This patch 1) removes the loop and 2) changes the API to pass the whole pin config array to the driver. It is now up to the driver to loop through the configs. This allows the driver to potentially combine configs and reduce the number of writes to pin config registers. All c files changed have been build-tested to verify the change compiles and that the corresponding .o is successfully generated. Signed-off-by: Sherman Yin <syin@broadcom.com> Reviewed-by: Christian Daudt <csd@broadcom.com> Reviewed-by: Matt Porter <matt.porter@linaro.org> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23pinctrl: imx: Fix compilation with DEBUG enabledSascha Hauer1-16/+3
This became broken with converting the pinmux arrays into struct types. While at it replace the preprocessor magic with a simple dev_dbg. Reported-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-16pinctrl: imx: Use struct type for pinsSascha Hauer1-42/+37
The i.MX pinctrl driver uses 5 different arrays for storing the informations for pins. This requires five allocations. Instead, use a struct type which is more cache friendly, readable and requires less allocations. One array of integers is still needed since the pinctrl framework forces us to maintain it. This also adds checks whether the allocations are succesful which were missing. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15pinctrl: imx: do not fail when parsing a function failsSascha Hauer1-8/+2
When parsing a function fails this is no reason to make the whole driver fail. Just continue with the next function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15pinctrl: imx: do not fail when parsing a group failsSascha Hauer1-4/+1
The i.MX pinctrl driver completely bails out when it detects an error in the pinctrl nodes. This usually means that whatever error a devicetree has the user is left blind because even the console cannot be initialized without working pinmux. Instead of bailing out completely, just continue probing. This makes the pinctrl driver work, only the erroneous groups will fail later during pin request time. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15pinctrl: imx: Catch no fsl,pins propertySascha Hauer1-0/+5
Instead of crashing the kernel print an error message when the fsl,pins property is missing. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15pinctrl: imx: make error messages more informativeSascha Hauer1-2/+2
When printing error messages about errors in the devicetree also print the offending node to give the use a hint what might be wrong. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07pinctrl: imx: work around select input quirkShawn Guo1-2/+32
The select input for some pin may not be implemented using the regular select input register but the general purpose register. A real example is that imx6q designers found the select input for USB OTG ID pin is missing at the very late stage, and can not add a new select input register but have to use a general purpose register bit to implement it. The patch adds a workaround for such select input quirk by interpreting the input_val cell of pin function ID in a different way, so that all the info that needed for setting up select input bits in general purpose register could be decoded from there. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-07-23pinctrl: pinctrl-imx: Remove unneeded check for platform_get_resource()Fabio Estevam1-3/+0
As devm_ioremap_resource() is used on probe, there is no need to explicitly check the return value from platform_get_resource(), as this is something that devm_ioremap_resource() takes care by itself. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16pinctrl: imx: add VF610 support to imx pinctrl frameworkJingchang Lu1-11/+42
On some platforms such as VF610, offset of mux and pad ctrl register may be zero, and the mux_mode and config_val are in one 32-bit register. This patch adds support to imx core pinctrl framework to handle these cases. Signed-off-by: Jingchang Lu <b35083@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-02Merge tag 'dt-for-linus' of ↵Linus Torvalds1-79/+47
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC device-tree updates from Olof Johansson: "Part 1 of device-tree updates for 3.10. The bulk of the churn in this branch is due to i.MX moving from C-defined pin control over to device tree, which is a one-time conversion that will allow greater flexibility down the road. Besides that, there's PCI-e bindings for Marvell mvebu platforms and a handful of cleanups to tegra due to the new include file functionality of the device tree compiler" * tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (113 commits) arm: mvebu: PCIe Device Tree informations for Armada XP GP arm: mvebu: PCIe Device Tree informations for Armada 370 DB arm: mvebu: PCIe Device Tree informations for Armada 370 Mirabox arm: mvebu: PCIe Device Tree informations for Armada XP DB arm: mvebu: PCIe Device Tree informations for OpenBlocks AX3-4 arm: mvebu: add PCIe Device Tree informations for Armada XP arm: mvebu: add PCIe Device Tree informations for Armada 370 ARM: sunxi: unify osc24M_fixed and osc24M arm: vt8500: Add SDHC support to WM8505 DT ARM: dts: Add a 64 bits version of the skeleton device tree ARM: mvebu: Add Device Bus and CFI flash memory support to defconfig ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board ARM: mvebu: Add support for NOR flash device on Armada XP-GP board ARM: mvebu: Add Device Bus support for Armada 370/XP SoC ARM: dts: imx6dl-wandboard: Add USB Host support ARM: dts: imx51 cpu node ARM: dts: Add missing imx27-phytec-phycore dtb target ARM: dts: Add NFC support for i.MX27 Phytec PCM038 module ARM: i.MX51: Add PATA support ARM: dts: Add initial support for Wandboard Dual-Lite ...
2013-04-09pinctrl: imx: move hard-coding data into device treeShawn Guo1-79/+47
Currently, all imx pinctrl drivers maintain a big array of struct imx_pin_reg which hard-codes data like register offset and mux mode setting for each pin function. Every time a new imx SoC support is added, we need to add such a big mount of data. With moving to single kernel build, it's only matter of time to be blamed on memory consuming. With DTC pre-processor support in place, the patch moves all these data into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and changing the PIN_FUNC_ID parsing code a little bit. The pin id gets re-numbered based on mux register offset, or config register offset if the pin has no mux register, so that kernel can identify the pin id from register offsets provided by device tree. As a bonus point of the change, those arbitrary magic numbers standing for particular PIN_FUNC_ID in device tree sources are now replaced by macros to improve the readability of dts files. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-07pinctrl: Declare operation structures as constLaurent Pinchart1-3/+3
The pinconf, pinctrl and pinmux operation structures hold function pointers that are never modified. Declare them as const. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-22pinctrl: Convert to devm_ioremap_resource()Thierry Reding1-3/+3
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03Drivers: pinctrl: remove __dev* attributes.Greg Kroah-Hartman1-9/+10
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Barry Song <baohua.song@csr.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-11Merge tag 'driver-core-3.8-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the large driver core updates for 3.8-rc1. The biggest thing here is the various __dev* marking removals. This is going to be a pain for the merge with different subsystem trees, I know, but all of the patches included here have been ACKed by their various subsystem maintainers, as they wanted them to go through here. If this is too much of a pain, I can pull all of them out of this tree and just send you one with the other fixes/updates and then, after 3.8-rc1 is out, do the rest of the removals to ensure we catch them all, it's up to you. The merges should all be trivial, and Stephen has been doing them all in linux-next for a few weeks now quite easily. Other than the __dev* marking removals, there's nothing major here, some firmware loading updates and other minor things in the driver core. All of these have (much to Stephen's annoyance), been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio update. * tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits) modpost.c: Stop checking __dev* section mismatches init.h: Remove __dev* sections from the kernel acpi: remove use of __devinit PCI: Remove __dev* markings PCI: Always build setup-bus when PCI is enabled PCI: Move pci_uevent into pci-driver.c PCI: Remove CONFIG_HOTPLUG ifdefs unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs sh/PCI: Remove CONFIG_HOTPLUG ifdefs powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs mips/PCI: Remove CONFIG_HOTPLUG ifdefs microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs dma: remove use of __devinit dma: remove use of __devexit_p firewire: remove use of __devinitdata firewire: remove use of __devinit leds: remove use of __devexit leds: remove use of __devinit leds: remove use of __devexit_p mmc: remove use of __devexit ...
2012-11-28pinctrl: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Viresh Kumar <viresh.linux@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15pinctrl: imx: Fix the logic checking if not able to find pin reg mapAxel Lin1-1/+1
Current code sets "pin_reg = &info->pin_regs[i];" in each loop iteration, so in the case of no-match, pin_reg is not NULL. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11pinctrl: Staticize pinconf_opsAxel Lin1-1/+1
They are not referenced outside respective driver. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: John Crispin <blogic@openwrt.org> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-18pinctrl: imx: remove duplicated constRichard Zhao1-1/+1
fix smatch warning: drivers/pinctrl/pinctrl-imx.c:435:21: warning: duplicate const Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-24Merge tag 'pinctrl-for-v3.6' of ↵Linus Torvalds1-6/+7
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control changes from Linus Walleij: "These are the accumulated pin control patches for v3.6: - Various cleanups to the U300 driver - Refactor the pin control core to automatically remove any GPIO ranges when the drivers are removed, instead of having the drivers do this explicitly. - Add a function for registering a batch of GPIO ranges. - Fix a number of incorrect but non-regressive error checks. - Incremental improvements to the COH901, i.MX and Nomadik drivers - Add a one-register-per-pin entirely Device Tree-based pin control driver from Tony Lindgren." * tag 'pinctrl-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: Add one-register-per-pin type device tree based pinctrl driver pinctrl/nomadik: add spi2_oc1_2 pin group pinctrl/nomadik: kerneldoc fix pinctrl/nomadik: use devm_* allocators for gpio probe pinctrl/nomadik: add pin group to mco function pinctrl/nomadik: add hsit_a_2 pin group pinctrl/nomadik: add pin group smcs1 and smps0 pinctrl/nomadik: fix hsir_a_1_pins pin list pinctrl: pinctrl-imx: fix map setting problem if NO_PAD_CTL is set pinctrl/coh901: use clk_prepare_[en|dis]able() pinctrl/pinctrl-tegra: remove IS_ERR checking of pmx->pctl pinctrl/pinctrl-spear: remove IS_ERR checking of pmx->pctl pinctrl/u300: drop unused variable pinctrl: select the proper symbol pinctrl: add pinctrl_add_gpio_ranges function pinctrl: remove pinctrl_remove_gpio_range pinctrl/pinctrl-core: cleanup pinctrl_register pinctrl/u300: delete pointless debug print pinctrl/pinctrl-u300: remove devm_kfree at driver unload
2012-07-14pinctrl: pinctrl-imx: only print debug message when DEBUG is definedDong Aisheng1-0/+2
Fix regression for commit 3a86a5f8 (pinctrl: pinctrl-imx: free allocated pinctrl_map structure only once and use kernel facilities for IMX_PMX_DUMP) introduced in 3.5-rc3. With above commit, the debug code will alway be excuted. Change to excute it only when DEBUG is defined. Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-03pinctrl: pinctrl-imx: fix map setting problem if NO_PAD_CTL is setHui Wang1-6/+7
new_map is allocated according to map_num instead of grp->npins, if a pin or some pins of a group has NO_PAD_CTL property, the map_num and the grp->npin are different definitely. When we set mapping information to the new_map[], we should skip those pins with NO_PAD_CTL from index, otherwise it is possible the driver will aceesss to a unallocated region. Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Hui Wang <jason77.wang@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-06-12pinctrl: pinctrl-imx: fix incorrect debug message of mapsDong Aisheng1-1/+1
After create config map, the new_map pointer becomes point to PIN_MAP_TYPE_CONFIGS_PIN map rather than PIN_MAP_TYPE_MUX_GROUP map any more. Thus using new_map pointer to display the MUX_GROUP info is not correct. Using map pointer instead to show the correct MUX_GROUP map info. Original the debug message is: imx6q-pinctrl 20e0000.iomuxc: maps: function Yp group MX6Q_PAD_SD3_CMD num 12 After fix it is: imx6q-pinctrl 20e0000.iomuxc: maps: function usdhc3 group usdhc3grp-1 num 11 Reported-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-06-12pinctrl: pinctrl-imx: free if of_get_parent fails to get the parent nodeDevendra Naga1-1/+3
of_get_parent can return null if no parent node found, so the allocated new_map should be freed. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-06-12pinctrl: pinctrl-imx: free allocated pinctrl_map structure only once and use ↵Devendra Naga1-16/+12
kernel facilities for IMX_PMX_DUMP a) as we allocate the pinctrl_map structure at imx_dt_node_to_map at line 167, anyway if its an element, or a num_elements * (sizeof(type)) elements allocated to one single pointer must be freed only once. CASE. A) as new_map is not moved and allocated like, for (i = 0; i < MAX_ELEMS; i++) { new_map[i] = kmalloc(numelems * size, GFP_KERNEL); } its freed as for (i = 0; i < MAX_ELEMS; i++) { kfree(new_map[i]); } CASE. B) and its allocated like new_map = kmalloc(numelems * size, GFP_KERNEL); it just needs kfree not as case A's. b) use KERN_DEBUG facility for the IMX_PMX_DUMP macro. Signed-off-by: Devendra Naga <devendra.aaru@gmail.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-15pinctrl: pinctrl-imx: remove empty pinmux disable functionDong Aisheng1-7/+0
Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-02pinctrl: pinctrl-imx: add imx pinctrl core driverDong Aisheng1-0/+627
The driver has mux and config support while the gpio is still not supported. For select input setting, the driver will handle it internally and do not need user to take care of it. The pinctrl-imx core driver will parse the dts file and dynamically create the pinmux functions and groups. Each IMX SoC pinctrl driver should register pins with a pin register map including mux register and config register and select input map to core for proper operations. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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