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2011-05-29arm gpio drivers: make them 'depends on ARM'Linus Torvalds1-0/+4
We had a few drivers move from arch/arm into drivers/gpio, but they don't actually compile without the ARM platform headers etc. As a result they were messing up allyesconfig on x86. Make them depend on ARM. Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-28Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds13-62/+5289
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: gpio/pch_gpio: Support new device ML7223 gpio: make gpio_{request,free}_array gpio array parameter const GPIO: OMAP: move to drivers/gpio GPIO: OMAP: move register offset defines into <plat/gpio.h> gpio: Convert gpio_is_valid to return bool gpio: Move the s5pc100 GPIO to drivers/gpio gpio: Move the s5pv210 GPIO to drivers/gpio gpio: Move the exynos4 GPIO to drivers/gpio gpio: Move to Samsung common GPIO library to drivers/gpio gpio/nomadik: add function to read GPIO pull down status gpio/nomadik: show all pins in debug gpio: move Nomadik GPIO driver to drivers/gpio gpio: move U300 GPIO driver to drivers/gpio langwell_gpio: add runtime pm support gpio/pca953x: Add support for pca9574 and pca9575 devices gpio/cs5535: Show explicit dependency between gpio_cs5535 and mfd_cs5535
2011-05-27Merge branch 'for_2.6.40/gpio-move' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/nextGrant Likely2-0/+2008
2011-05-27gpio/pch_gpio: Support new device ML7223Tomoya MORINAGA2-1/+9
Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub). The ML7223 IOH is for MP(Media Phone) use. The ML7223 is companion chip for Intel Atom E6xx series. The ML7223 is completely compatible for Intel EG20T PCH. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-27gpio: make gpio_{request,free}_array gpio array parameter constLars-Peter Clausen1-2/+2
gpio_{request,free}_array should not (and do not) modify the passed gpio array, so make the parameter const. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-27GPIO: OMAP: move to drivers/gpioKevin Hilman2-0/+2008
Move OMAP GPIO driver to drivers/gpio. Builds whenever CONFIG_ARCH_OMAP=y. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-05-27TPS65911: Add support for added GPIO linesJorge Eduardo Candelaria1-10/+19
GPIO 1 to 8 are added for TPS65911 chip version. The gpio driver now handles more than one gpio lines. Subsequent versions of the chip family can add new GPIO lines with minimal driver changes. Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-27GPIO: TPS65910: Move driver to drivers/gpio/Jorge Eduardo Candelaria3-0/+99
The GPIO driver should reside in drivers/gpio/ for better organization. Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-26gpio: Move the s5pc100 GPIO to drivers/gpioKyungmin Park3-0/+362
Move the Samsung s5pc100 SoC GPIO driver to drivers/gpio Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio: Move the s5pv210 GPIO to drivers/gpioKyungmin Park3-0/+295
Move the Samsung s5pv210 SoC GPIO driver to drivers/gpio Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio: Move the exynos4 GPIO to drivers/gpioKyungmin Park3-0/+372
Move the Samsung Exynos4 series SoCs GPIO driver to drivers/gpio Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio: Move to Samsung common GPIO library to drivers/gpioKyungmin Park3-0/+213
It's common gpiolib for recent Samsung SoCs. Move to drivers/gpio Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio/nomadik: add function to read GPIO pull down statusRickard Andersson1-4/+30
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Martin Persson <martin.persson@stericsson.com> [Split off from larger patch] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio/nomadik: show all pins in debugRabin Vincent1-4/+27
Useful to check the status of the runtime pin muxing. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> [Squashed, modified to use chip-internal IRQ trigger state] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio: move Nomadik GPIO driver to drivers/gpioGrant Likely2-0/+1021
This moves the Nomadik GPIO driver out of arch/arm/plat-nomadik and into the desired location indicated by the subsystem maintainer. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [grant.likely: squashed with kconfig fixup] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio: move U300 GPIO driver to drivers/gpioLinus Walleij2-0/+701
This moves the U300 GPIO driver out of arch/arm/mach-u300 and into the desired location indicated by the subsystem maintainer. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26langwell_gpio: add runtime pm supportKristen Carlson Accardi1-0/+65
While this is essentially a no-op for this driver, it has the side effect of letting the PMU driver snoop D3 requests from the PCI core for this driver. This is only for langwell, not for whitney point. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio/pca953x: Add support for pca9574 and pca9575 devicesHaojian Zhuang1-58/+191
PCA957x is i2c gpio expander, and similar to PCA953x. Although register configurations are different between PCA957x and PCA953x. They can share a lot of components, such as IRQ handling, GPIO IN/OUT. So updating PCA953x driver to support PCA957x chips. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26gpio/cs5535: Show explicit dependency between gpio_cs5535 and mfd_cs5535Ed Wildgoose1-1/+1
cs5535-gpio.c has been split into two, with various setup moved into cs5535-mfd.c. Given that cs5535-gpio will not load without the -mfd part, lets make that dependency explicit in Kconfig Signed-off-by: Ed Wildgoose <kernel@wildgooses.com> Acked-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-26Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds5-150/+418
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: gpio/via: rename VIA local config struct basic_mmio_gpio: split into a gpio library and platform device gpio: remove some legacy comments in build files gpio: add trace events for setting direction and value gpio/pca953x: Use handle_simple_irq instead of handle_edge_irq gpiolib: export gpiochip_find gpio: remove redundant Kconfig depends on GPIOLIB basic_mmio_gpio: convert to non-__raw* accessors basic_mmio_gpio: support direction registers basic_mmio_gpio: support different input/output registers basic_mmio_gpio: detect output method at probe time basic_mmio_gpio: request register regions basic_mmio_gpio: allow overriding number of gpio basic_mmio_gpio: convert to platform_{get,set}_drvdata() basic_mmio_gpio: remove runtime width/endianness evaluation
2011-05-26mfd: Use mfd cell platform_data for janz cells platform bitsSamuel Ortiz1-2/+1
With the addition of a platform device mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Cc: Ira W. Snyder <iws@ovro.caltech.edu> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-26mfd: Use mfd cell platform_data for rdc321x cells platform bitsSamuel Ortiz1-2/+1
With the addition of a platform device mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Florian Fainelli <florian@openwrt.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-26mfd: Use mfd cell platform_data for timberdale cells platform bitsSamuel Ortiz1-3/+3
With the addition of a device platform mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-25drivers/gpio/ml_ioh_gpio.c needs slab.hAndrew Morton1-0/+3
alpha allmodconfig: drivers/gpio/ml_ioh_gpio.c: In function 'ioh_gpio_probe': drivers/gpio/ml_ioh_gpio.c:205: error: implicit declaration of function 'kzalloc' drivers/gpio/ml_ioh_gpio.c:205: warning: assignment makes pointer from integer without a cast also fix this: drivers/gpio/ml_ioh_gpio.c:145: warning: 'ioh_gpio_save_reg_conf' defined but not used drivers/gpio/ml_ioh_gpio.c:154: warning: 'ioh_gpio_restore_reg_conf' defined but not used Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25drivers/gpio/vx855_gpio.c needs slab.hAndrew Morton1-0/+1
alpha allmodconfig: drivers/gpio/vx855_gpio.c: In function 'vx855gpio_probe': drivers/gpio/vx855_gpio.c:233: error: implicit declaration of function 'kzalloc' drivers/gpio/vx855_gpio.c:233: warning: assignment makes pointer from integer without a cast Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-20basic_mmio_gpio: split into a gpio library and platform deviceJamie Iles3-148/+176
Allow GPIO_BASIC_MMIO_CORE to be used to provide an accessor library for implementing GPIO drivers whilst abstracting the register access detail. Based on a patch from Anton Vorontsov[1] and adapted to allow bgpio_chip to be embedded in another structure. Changes since v1: - Register the gpio_chip in the platform device probe 1. https://lkml.org/lkml/2011/4/19/401 Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20gpio: remove some legacy comments in build filesLinus Walleij2-9/+5
The build files for drivers/gpio has some wording and comments about the directory being reserved exclusively for GPIO expanders (according to the gpio.txt file these are on external busses) and this has been false for some time. We already have PL061 and Xilinx drivers which are in silicon and now I'm moving more silicon drivers here, so delete this and reword it a bit. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20gpio: add trace events for setting direction and valueUwe Kleine-König1-2/+16
This patch allows to trace gpio operations using ftrace Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20gpio/pca953x: Use handle_simple_irq instead of handle_edge_irqErik Botö1-1/+1
Make pca953x driver use the simple irq handler since no hardware control is necessary and the driver lacks an irq_ack function. handle_edge_irq() calls chip->irq_ack() which crashes since this function does not exist. Signed-off-by: Erik Botö <erik.boto@pelagicore.com> Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20gpiolib: export gpiochip_findJean Delvare1-0/+1
Export function gpiochip_find so that modules can use it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20gpio: remove redundant Kconfig depends on GPIOLIBH Hartley Sweeten1-5/+4
Since all the drivers are in a 'if GPIOLIB/endif block', the depends on GPIOLIB is redundant so remove them. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: convert to non-__raw* accessorsJamie Iles1-8/+8
The __raw_* accessors don't include memory barriers and can cause problems when writes get stuck in write buffers. Suggested-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: support direction registersJamie Iles1-2/+112
Most controllers require the direction of a GPIO to be set by writing to a direction register. Add support for either an input direction register or an output direction register. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: support different input/output registersJamie Iles1-5/+33
Some controllers have separate input and output registers. For these controllers, use "set" for the output and "dat" for the input. Changes since v2: reuse "set" for output and "dat" for input rather than adding a new "in" register. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: detect output method at probe timeJamie Iles1-31/+59
Rather than detecting the output method each time in the .set() callback, do it at probe time and set the appropriate callback. Changes since v2: moved the reg_dat initialization into bgpio_setup_io(). Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: request register regionsJamie Iles1-3/+13
Make sure that we get the register regions with request_mem_region() before ioremap() to make sure we have exclusive access. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: allow overriding number of gpioJamie Iles1-6/+12
Some platforms may have a number of GPIO that is less than the register width of the peripheral. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: convert to platform_{get,set}_drvdata()Jamie Iles1-2/+2
Use the platform drvdata helpers rather than working on the struct device itself. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20basic_mmio_gpio: remove runtime width/endianness evaluationJamie Iles1-44/+92
Remove endianness/width calculations at runtime by installing function pointers for bit-to-mask conversion and register accessors. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-04-26treewide: cleanup continuations and remove logging message whitespaceJoe Perches1-4/+3
Using C line continuation inside format strings is error prone. Clean up the unintended whitespace introduced by misuse of \. Neaten correctly used line continations as well for consistency. drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well, but arcmsr needs a lot more work and the driver should likely be moved to staging instead. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-04-26Merge branch 'master' into for-nextJiri Kosina19-123/+634
Fast-forwarded to current state of Linus' tree as there are patches to be applied for files that didn't exist on the old branch.
2011-04-11Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds3-2/+5
* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6: dt/fsldma: fix build warning caused by of_platform_device changes spi: Fix race condition in stop_queue() gpio/pch_gpio: Fix output value of pch_gpio_direction_output() gpio/ml_ioh_gpio: Fix output value of ioh_gpio_direction_output() gpio/pca953x: fix error handling path in probe() call
2011-04-10treewide: remove extra semicolonsJustin P. Mattock1-1/+1
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-31gpio/pch_gpio: Fix output value of pch_gpio_direction_output()Peter Tyser1-0/+1
The pch_gpio_direction_output() function was missing a write to set the desired output value. The function would properly set the GPIO direction, but not the output value. The value would have to manually be set with a follow up call to pch_gpio_set(). Add the missing write so that pch_gpio_direction_output() sets both the GPIO direction and value. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Tested-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-03-31gpio/ml_ioh_gpio: Fix output value of ioh_gpio_direction_output()Peter Tyser1-0/+1
The ioh_gpio_direction_output() function was missing a write to set the desired output value. The function would properly set the GPIO direction, but not the output value. The value would have to manually be set with a follow up call to ioh_gpio_set(). Add the missing write so that ioh_gpio_direction_output() sets both the GPIO direction and value. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Tested-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30gpio/pca953x: fix error handling path in probe() callBen Dooks1-2/+3
If the device fails to respond, then the error path tries to remove an interrupt that never got registered, which causes an backtrace from the interrupt handling code. Fix this by ensuring that the cleanup path has two labels and use the correct path as needed. fixes the following error: WARNING: at kernel/irq/manage.c:908 __free_irq+0x80/0x160() Trying to free already-free IRQ 0 Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-03-29gpio: ab8500: Mark brokenThomas Gleixner1-1/+1
This driver is broken in several aspects. 1) old style irq_chip functions. Sigh 2) Abuse of the unlock callback. That's not supposed to be a state machine for evrything and some more. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-28gpio: driver for 42 AB8500 GPIO pinsBibek Basu3-0/+528
To get rid of port expanders, the free GPIOs of ab8500 can be used. There are 42 GPIO pins. Out of which 16 are interrupt capable.This patch implements 16 virtual IRQ mapped to 16 interrupt capable AB8500 GPIOs. Signed-off-by: Bibek Basu <bibek.basu@stericsson.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> [Renamed header file as per MFD structure] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-03-25Merge branch 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds10-95/+49
* 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (23 commits) genirq: Expand generic show_interrupts() gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handler gpio: Cleanup genirq namespace arm: ep93xx: Add basic interrupt info arm/gpio: Remove three copies of broken and racy debug code xtensa: Use generic show_interrupts() xtensa: Convert genirq namespace xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATED xtensa: Convert s6000 gpio irq_chip to new functions xtensa: Convert main irq_chip to new functions um: Use generic show_interrupts() um: Convert genirq namespace m32r: Use generic show_interrupts() m32r: Convert genirq namespace h8300: Use generic show_interrupts() h8300: Convert genirq namespace avr32: Cleanup eic_set_irq_type() avr32: Use generic show_interrupts() avr: Cleanup genirq namespace avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATED ... Fix up trivial conflict in drivers/gpio/timbgpio.c