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path: root/drivers/spi/spi-omap2-mcspi.c
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2012-09-22spi: omap2-mcspi: add pinctrl supportMatt Porter1-0/+8
Adds pinctrl support to support OMAP platforms that boot from DT and rely on pinctrl support to set pinmuxes. Signed-off-by: Matt Porter <mporter@ti.com> Acked-by: Shubhrajyoti D <shubhrajyoti@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-19ARM: omap: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the omap include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: "Benoît Cousson" <b-cousson@ti.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Omar Ramirez Luna <omar.ramirez@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Jarkko Nikula <jarkko.nikula@bitmer.com> Cc: Liam Girdwood <lrg@ti.com> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Jean Pihet <j-pihet@ti.com> Cc: J Keerthy <j-keerthy@ti.com> Cc: linux-omap@vger.kernel.org
2012-09-13Merge branch 'ofdeviceiddata' of git://git.pengutronix.de/git/ukl/linux into ↵Olof Johansson1-1/+1
next/fixes-non-critical From "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>: this is the 2nd version of this series whose goal is to make struct of_device_id.data const. Conceptually a driver must not modify the data contained there so making it const is the right thing. v1 of this series was sent with Message-id: 1342182734-321-1-git-send-email-y. Changes since then are: - powerpc fixes - several new consts that were found by Arnd that are possible after patch 19. Arnd suggested to take this series via arm-soc late for 3.6 in one go because patch 19 depends on the former patches but is a precondition to the latter and it fixes a few warnings. So getting it in via the respective maintainer trees would need a much bigger coordination effort. That means I prefer getting Acks over you taking the patch. Vinod Koul already took dmaengine: at_hdmac: add a few const qualifiers that is in next-20120723 as 7fd63ccdad72 now. Vinod, I don't follow your pull requests, but assuming you didn't let it already pull for 3.6 I suggest you drop it from your queue and I just take your Ack. This series was build tested for arm (all defconfigs) and powerpc (all defconfigs and an allyesconfig) and grep didn't find more issues. As before it introduces a warning in drivers/regulator/twl-regulator.c. This driver does modify its .of_match_table when a device is bound which doesn't fits the concept of independant devices. Arnd noticed another new warning in drivers/scsi/qlogicpti.c that isn't that easy to resolve, because the pointer to (now) const data is passed as first argument to scsi_host_alloc. To fix that properly struct Scsi_Host.hostt needs to get a const, too. Alternatively I could introduce a cast removing the const, but I don't like that. * 'ofdeviceiddata' of git://git.pengutronix.de/git/ukl/linux: (25 commits) dma: tegra: make data used as *of_device_id.data const can: mpc5xxx_can: make data used as *of_device_id.data const macintosh/mediabay: make data used as *of_device_id.data const i2c/mpc: make data used as *of_device_id.data const mfd/da9052: make i2c_device_id array const powerpc/fsl_msi: drop unneeded cast to non-const pointer gpio/gpio-omap: make platformdata used as *of_device_id.data const of: add const to struct *of_device_id.data dma: tegra: make tegra_dma.chip_data a pointer to const data watchdog/mpc8xxx: add a const qualifier powerpc/celleb_pci: add a const qualifier powerpc/fsl_msi: add a const qualifier powerpc/83xx: add a const qualifier macintosh/mediabay: add a const qualifier mmc/omap_hsmmc: add a const qualifier i2c/mpc: add a const qualifier i2c/i2c-omap: add a const qualifier gpio/mpc8xxx: add a const qualifier gpio/gpio-omap.c: add a const qualifier misc/atmel_tc: make atmel_tc.tcb_config member point to const data Signed-off-by: Arnd Bergmann <arnd@arndb.de> [olof: repulled a v3 version of the branch that rebased to add some more acked-bys and added one more patch on top for tegra] Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-12spi: omap2-mcspi: Cleanup the omap2_mcspi_txrx_dma functionShubhrajyoti D1-112/+144
Currently in omap2_mcspi_txrx_dma the tx and the rx support is interleaved. Make the rx related code in omap2_mcspi_rx_dma and the tx related code omap2_mcspi_tx_dma and call the functions. While at it remove the braces in the if statements which has only one line. Also fix ["foo * bar" to "foo *bar"] warn for the rx and tx variables. Only a cleanup no functional change. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-22spi: omap2-mcspi: At remove dont use the runtime_autosuspend callsShubhrajyoti D1-2/+1
At remove we shouldnt be using the autosuspend timeout as we are calling pm_runtime_disable immediately after. Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-22spi: omap2-mcspi: Call pm_runtime_* functions directlyShubhrajyoti D1-17/+11
Call the pm_runtime functions directly making room for possible pm optimisations. Also the runtime functions aren't just about enabling and disabling of clocks though it does enable clocks also. Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-22spi: omap2-mcspi: Remove the macro MOD_REG_BITShubhrajyoti D1-14/+14
Remove the macro MOD_REG_BIT instead make the bit field modifications directly. This deletes a branch operation in cases where the the set is predecided. While at it optimise two sequential bit clear in one step. Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17spi: omap2-mcspi: Remove the call to platform_set_drvdata(pdev, NULL)Shubhrajyoti D1-2/+0
Remove the call of platform_set_drvdata(pdev, NULL) as they are not needed anymore. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-04spi: omap2-mcspi: Fix the error handling in probeShubhrajyoti D1-4/+2
The kfree() is taken care of by the spi core (spi_master_release() function) that is called once the last reference to the underlying struct device has been released. So the driver need not call kfree. Also the put was missed in some of the error handling fix the same. There by fixing the missing device_put in some of the error paths. Acked-by: Guenter Roeck <linux@roeck-us.net> Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-03spi/spi-omap2-mcspi: add a const qualifierUwe Kleine-König1-1/+1
This prepares *of_device_id.data becoming const. Without this change the following warning would occur: drivers/spi/spi-omap2-mcspi.c: In function 'omap2_mcspi_probe': drivers/spi/spi-omap2-mcspi.c:1118: warning: assignment discards qualifiers from pointer target type Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2012-08-01Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds1-102/+127
Pull ARM DMA engine updates from Russell King: "This looks scary at first glance, but what it is is: - a rework of the sa11x0 DMA engine driver merged during the previous cycle, to extract a common set of helper functions for DMA engine implementations. - conversion of amba-pl08x.c to use these helper functions. - addition of OMAP DMA engine driver (using these helper functions), and conversion of some of the OMAP DMA users to use DMA engine. Nothing in the helper functions is ARM specific, so I hope that other implementations can consolidate some of their code by making use of these helpers. This has been sitting in linux-next most of the merge cycle, and has been tested by several OMAP folk. I've tested it on sa11x0 platforms, and given it my best shot on my broken platforms which have the amba-pl08x controller. The last point is the addition to feature-removal-schedule.txt, which will have a merge conflict. Between myself and TI, we're planning to remove the old TI DMA implementation next year." Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt and drivers/dma/{Kconfig,Makefile} * 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits) ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails Add feature removal of old OMAP private DMA implementation mtd: omap2: remove private DMA API implementation mtd: omap2: add DMA engine support spi: omap2-mcspi: remove private DMA API implementation spi: omap2-mcspi: add DMA engine support ARM: omap: remove mmc platform data dma_mask and initialization mmc: omap: remove private DMA API implementation mmc: omap: add DMA engine support mmc: omap_hsmmc: remove private DMA API implementation mmc: omap_hsmmc: add DMA engine support dmaengine: omap: add support for cyclic DMA dmaengine: omap: add support for setting fi dmaengine: omap: add support for returning residue in tx_state method dmaengine: add OMAP DMA engine driver dmaengine: sa11x0-dma: add cyclic DMA support dmaengine: sa11x0-dma: fix DMA residue support dmaengine: PL08x: ensure all descriptors are freed when channel is released dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking ...
2012-07-31spi: omap2-mcspi: remove private DMA API implementationRussell King1-99/+5
Remove the private DMA API implementation from spi-omap2-mcspi.c, making it use entirely the DMA engine API. Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-31spi: omap2-mcspi: add DMA engine supportRussell King1-31/+150
Add DMA engine support to the OMAP SPI driver. This supplements the private DMA API implementation contained within this driver, and the driver can be independently switched at build time between using DMA engine and the private DMA API for the transmit and receive sides. Tested-by: Shubhrajyoti <shubhrajyoti@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-22spi/omap2: mark omap2_mcspi_master_setup as __devinitArnd Bergmann1-1/+1
This warning recently appeared with omap2plus_defconfig: WARNING: drivers/spi/built-in.o(.devinit.text+0x3c4): Section mismatch in reference from the function omap2_mcspi_probe() to the function .init.text:omap2_mcspi_master_setup() The function __devinit omap2_mcspi_probe() references a function __init omap2_mcspi_master_setup(). If omap2_mcspi_master_setup is only used by omap2_mcspi_probe then annotate omap2_mcspi_master_setup with a matching annotation. The fix is obviously to mark the omap2_mcspi_master_setup function as __devinit, rather than __init. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-20spi: omap2-mcspi: Fix the below warningShubhrajyoti D1-2/+4
The dma_map and dma_unmap should have same parameter passed otherwise we get the below warn. ks8851 spi1.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x000000009f22] [ 2.066925] Modules linked in: [ 2.070312] [ 2.071929] [<c001c250>] (unwind_backtrace+0x0/0x130) from [<c0043d84>] (warn_slowpath_common+0x4c/0x64) [ 2.081909] [<c0043d84>] (warn_slowpath_common+0x4c/0x64) from [<c0043e30>] (warn_slowpath_fmt+0x30/0x40) [ 2.091949] [<c0043e30>] (warn_slowpath_fmt+0x30/0x40) from [<c0293824>] (check_unmap+0x6d0/0x7b0) [ 2.101348] [<c0293824>] (check_unmap+0x6d0/0x7b0) from [<c02939cc>] (debug_dma_unmap_page+0x64/0x70) [ 2.111053] [<c02939cc>] (debug_dma_unmap_page+0x64/0x70) from [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc) [ 2.121582] [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc) from [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290) [ 2.132537] [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290) from [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438) [ 2.144592] [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438) from [<c03503bc>] (spi_pump_messages+0x100/0x160) [ 2.156127] [<c03503bc>] (spi_pump_messages+0x100/0x160) from [<c006635c>] (kthread_worker_fn+0xac/0x180) [ 2.166168] [<c006635c>] (kthread_worker_fn+0xac/0x180) from [<c0066578>] (kthread+0x90/0x9c) [ 2.175140] [<c0066578>] (kthread+0x90/0x9c) from [<c00157fc>] (kernel_thread_exit+0x0/0x8) [ 2.183898] ---[ end trace d1830ce6e44292f2 ]--- Fix the warn by changing the unmap parameter. Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-18SPI: fix over-eager devm_xxx() conversionRussell King1-1/+2
1a77b127ae (OMAP : SPI : use devm_* functions) converted the SPI device controller state to use devm_kzalloc(). Unfortunately, this is used against an unbound struct device, which results in the following when the device is bound to its driver: ------------[ cut here ]------------ WARNING: at /home/rmk/git/linux-rmk/drivers/base/dd.c:257 driver_probe_device+0x78/0x21c() Modules linked in: Backtrace: [<c0017d0c>] (dump_backtrace+0x0/0x10c) from [<c033e208>] (dump_stack+0x18/0x1c) r7:00000000 r6:c01ff28c r5:c040050c r4:00000101 [<c033e1f0>] (dump_stack+0x0/0x1c) from [<c00337ec>] (warn_slowpath_common+0x58/0x70) [<c0033794>] (warn_slowpath_common+0x0/0x70) from [<c0033828>] (warn_slowpath_null+0x24/0x2c) [<c0033804>] (warn_slowpath_null+0x0/0x2c) from [<c01ff28c>] (driver_probe_device+0x78/0x21c) [<c01ff214>] (driver_probe_device+0x0/0x21c) from [<c01ff49c>] (__driver_attach+0x6c/0x90) [<c01ff430>] (__driver_attach+0x0/0x90) from [<c01fda70>] (bus_for_each_dev+0x58/0x98) [<c01fda18>] (bus_for_each_dev+0x0/0x98) from [<c01ff0f4>] (driver_attach+0x20/0x28) [<c01ff0d4>] (driver_attach+0x0/0x28) from [<c01fe2f4>] (bus_add_driver+0xb4/0x230) [<c01fe240>] (bus_add_driver+0x0/0x230) from [<c01ffb24>] (driver_register+0xac/0x138) [<c01ffa78>] (driver_register+0x0/0x138) from [<c0215d4c>] (spi_register_driver+0x4c/0x60) [<c0215d00>] (spi_register_driver+0x0/0x60) from [<c045414c>] (ks8851_init+0x14/0x1c) [<c0454138>] (ks8851_init+0x0/0x1c) from [<c0008770>] (do_one_initcall+0x9c/0x164) [<c00086d4>] (do_one_initcall+0x0/0x164) from [<c0436410>] (kernel_init+0x128/0x210) [<c04362e8>] (kernel_init+0x0/0x210) from [<c0038754>] (do_exit+0x0/0x72c) ---[ end trace 4dcda79f5e89dd84 ]--- ks8851 spi1.0: message enable is 0 ks8851 spi1.0: eth0: revision 0, MAC 08:00:28:01:4d:c6, IRQ 194, has EEPROM Fix this by partially reverting the original commit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-05-19spi/omap2-mcspi: convert to the pump message infrastructureShubhrajyoti D1-133/+110
This patch converts the OMAP SPI driver to use the SPI infrastructure pump message queue.Also fixes the below warning. master is unqueued, this is deprecated Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-04-10spi/omap2-mcspi: Trivial optimisationShubhrajyoti D1-4/+3
Trivial optimisation of tmp variable by directly writing the value to the register. Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-04-10spi: omap2-mcspi: add support for pm_runtime autosuspendShubhrajyoti D1-1/+5
Adds support for configuring the omap2-mcspi driver use autosuspend for runtime power management. This can reduce the latency in starting an spi transfer by not suspending the device immediately following completion of a transfer. If another transfer then takes place before the autosuspend timeout (2 secs), the call to resume the device can return immediately saving some save/ restore cycles. Acked-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-04-10spi/omap: Remove bus_num usage for instance indexBenoit Cousson1-41/+34
bus_num was used to reference the mcspi controller instance in a fixed array. Remove this array and store this information directly inside drvdata structure. bus_num is now just set if the pdev->id is present or with -1 for dynamic allocation by SPI core, but the driver does not access it anymore. Clean some bad comments format, and remove un-needed space. Signed-off-by: Benoit Cousson <b-cousson@ti.com> [Cleanup the OMAP2_MCSPI_MAX_CTRL macro as it is not needed anymore] Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-04-10Merge branch 'spi' of git://gitorious.org/linus-tree/linus-tree into spi/nextGrant Likely1-37/+9
2012-03-19OMAP : SPI : use devm_* functionsShubhrajyoti D1-20/+4
The various devm_* functions allocate memory that is released when a driver detaches. This patch uses devm_request_and_ioremap to request memory in probe function. Since the freeing is not needed the calls are deleted from remove function.Also use use devm_kzalloc for the cs memory allocation. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-03-19spi: omap2-mcspi: convert to module_platform_driverFelipe Balbi1-14/+1
this will delete a few lines of code, no functional changes. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-03-19spi: omap2-mcspi: make it behave as a moduleFelipe Balbi1-4/+5
move probe away from __init section and use platform_driver_register() instead of platform_driver_probe(). Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
2012-02-15spi/omap: Add DT support to McSPI driverBenoit Cousson1-8/+48
Add device tree support to the OMAP2+ McSPI driver. Add the bindings documentation. Based on original code from Rajendra. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-29spi/omap: Correct the error pathShubhrajyoti D1-12/+20
Currently McSPI driver doesnt follow correct failure fallback steps attempting to correct the same. Also: - label names changed to give meaningful names. - Setting the driver data to NULL in remove Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-29spi/omap: call pm_runtime_disable in error path and removeShubhrajyoti D1-0/+2
omap mcspi probe() doesnt call pm_runtime disable functions in case of failure. remove() doesnt call pm_runtime disable. This could lead to warnings as below on subsequent insmod. ~# insmod spi-omap2-mcspi.ko [ 255.383671] omap2_mcspi omap2_mcspi.1: Unbalanced pm_runtime_enable! ... This patch adds the pm_runtime disable() at appropriate stages. Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-29spi/omap: Use a workqueue per omap2_mcspi controllerShubhrajyoti D1-8/+11
Currently all the spi controllers share the work queue. This patch allocates a work queue per controller. Signed-off-by: Steve Wilkins <steve.wilkins@raymarine.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-24OMAP: SPI: Fix the trying to free nonexistent resource errorShubhrajyoti D1-3/+4
Currently there is a request_mem_region(r->start, .. followed by r->start += pdata->regs_offset; And then in remove r = platform_get_resource(pdev, IORESOURCE_MEM, 0); release_mem_region(r->start, resource_size(r)); Here the offset addition is not taken care. Fix the code for the same. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-10spi: Convert uses of struct resource * to resource_size(ptr)Joe Perches1-5/+5
Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06spi: reorganize driversGrant Likely1-0/+1293
Sort the SPI makefile and enforce the naming convention spi_*.c for spi drivers. This change also rolls the contents of atmel_spi.h into the .c file since there is only one user of that particular include file. v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be be the predominant pattern for subsystem prefixes. - Clean up filenames in Kconfig and header comment blocks Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>
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