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linux/drivers/gpio
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Alexandre Courbot 0204df470d gpiolib: let gpiod_request() return -EPROBE_DEFER 
Patch be1a4b brought some improvements to the GPIO error handling code,
but also changed the return value of gpiod_request() when called on a
not yet initialized GPIO descriptor: it now returns -EINVAL instead of
-EPROBE_DEFER, and this affects some drivers.

This patch restores the original behavior for gpiod_request(). It is
safe to do so now that desc_to_gpio() does not rely on the GPIO
descriptor to be initialized. Other functions changed by patch be1a4b
do not see their return value affected, so these are not reverted.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Dr. H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-11 16:31:54 +02:00
..
devres.c gpio: devres: make comments proper 2013-06-17 07:53:00 +02:00
gpio-74x164.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-adnp.c gpio: adnp: Fix segfault if request_threaded_irq fails 2013-08-16 16:53:16 +02:00
gpio-adp5520.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-adp5588.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-amd8111.c gpio: add a driver for GPIO pins found on AMD-8111 south bridge chips 2012-07-12 13:40:13 +02:00
gpio-arizona.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-bt8xx.c Gpio/trivial: replace numeric with standard PM state macros 2013-06-30 01:37:07 +02:00
gpio-clps711x.c GPIO: clps711x: Add DT support 2013-06-11 15:44:57 -07:00
gpio-cs5535.c gpio: remove use of __devexit 2012-11-28 11:39:59 -08:00
gpio-da9052.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-da9055.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-davinci.c gpio: davinci: preparation for switch to common clock framework 2012-09-01 01:12:01 +02:00
gpio-em.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-ep93xx.c gpio: remove use of __devinit 2012-11-28 11:39:33 -08:00
gpio-f7188x.c gpio: add GPIO support for F71882FG and F71889F 2013-08-30 09:25:52 +02:00
gpio-ge.c powerpc/85xx: Board support for GE IMP3A 2012-03-16 11:15:48 -05:00
gpio-generic.c GPIO: gpio-generic: remove kfree() from bgpio_remove call 2013-04-11 19:33:54 +02:00
gpio-grgpio.c gpio: grgpio: Staticize local symbols 2013-06-19 21:40:38 +02:00
gpio-ich.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-it8761e.c gpio: reorganize drivers 2011-06-06 10:10:11 -06:00
gpio-janz-ttl.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-kempld.c gpio: Fix bit masking in Kontron PLD GPIO driver 2013-08-16 17:56:53 +02:00
gpio-ks8695.c ARM: 7036/1: mach-ks8695: break out GPIO driver specifics 2011-08-22 09:12:54 +01:00
gpio-langwell.c Power management and ACPI updates for 3.11-rc1 2013-07-03 14:35:40 -07:00
gpio-lpc32xx.c Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
gpio-lynxpoint.c gpio/lynxpoint: check if the interrupt is enabled in IRQ handler 2013-10-11 13:16:32 +02:00
gpio-max730x.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-max732x.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-max7300.c gpio: max7300: use devm_kzalloc() 2013-03-27 16:05:11 +01:00
gpio-max7301.c gpio: max7301: Reverting "Do not force SPI speed when using OF Platform" 2013-08-23 19:44:28 +02:00
gpio-mc9s08dz60.c gpio: mc9s08dz60: Use devm_kzalloc API 2012-09-01 01:02:27 +02:00
gpio-mc33880.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-mcp23s08.c gpio: mcp23s08: rename the device tree property 2013-08-30 09:25:52 +02:00
gpio-ml-ioh.c gpio-ml-ioh: fix error return code in ioh_gpio_probe() 2013-05-30 19:39:20 +02:00
gpio-mm-lantiq.c GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio 2012-05-21 14:31:53 +01:00
gpio-mpc8xxx.c gpio: mpc8xxx: don't set IRQ_TYPE_NONE when creating irq mapping 2013-02-04 21:41:46 +01:00
gpio-mpc5200.c gpio: remove use of __devinit 2012-11-28 11:39:33 -08:00
gpio-msic.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-msm-v1.c gpio_msm: Fix build error due to missing err.h 2013-07-31 00:34:31 +02:00
gpio-msm-v2.c This is the bulk of GPIO changes for the v3.12 series: 2013-09-07 10:53:00 -07:00
gpio-mvebu.c drivers/gpio: simplify use of devm_ioremap_resource 2013-08-16 17:16:31 +02:00
gpio-mxc.c gpio/mxc: add chained_irq_enter/exit() to mx2_gpio_irq_handler 2013-08-16 15:19:11 +02:00
gpio-mxs.c gpio: mxs: Use set and clear capabilities of the gpio controller 2013-05-20 20:14:43 +02:00
gpio-octeon.c gpio MIPS/OCTEON: Add a driver for OCTEON's on-chip GPIO pins. 2013-08-26 15:33:40 +02:00
gpio-omap.c gpio/omap: auto-setup a GPIO when used as an IRQ 2013-10-01 13:16:02 +02:00
gpio-palmas.c gpio: palmas: Fix misreported GPIO out value 2013-08-16 15:04:40 +02:00
gpio-pca953x.c This is the bulk of GPIO changes for the v3.12 series: 2013-09-07 10:53:00 -07:00
gpio-pcf857x.c gpio: pcf857x: Remove pdata argument to pcf857x_irq_domain_init() 2013-08-23 19:51:21 +02:00
gpio-pch.c gpio: Don't override the error code in probe error handling 2013-05-20 20:27:30 +02:00
gpio-pl061.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-pxa.c gpio: pxa: remove dead code 2013-07-21 18:14:20 +02:00
gpio-rc5t583.c gpio: remove use of __devexit 2012-11-28 11:39:59 -08:00
gpio-rcar.c gpio: rcar: Remove #gpio-range-cells DT property usage 2013-09-22 21:28:11 +09:00
gpio-rdc321x.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-sa1100.c ARM: 7342/2: sa1100: prepare for sparse irq conversion 2012-03-25 23:57:20 +01:00
gpio-samsung.c gpio: samsung: Drop support for Exynos SoCs 2013-08-29 14:40:30 +02:00
gpio-sch.c gpio: Don't override the error code in probe error handling 2013-05-20 20:27:30 +02:00
gpio-sodaville.c gpio: remove use of __devinit 2012-11-28 11:39:33 -08:00
gpio-spear-spics.c drivers/gpio: simplify use of devm_ioremap_resource 2013-08-16 17:16:31 +02:00
gpio-sta2x11.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-stmpe.c gpio: stmpe: Staticize non-exported symbols 2013-05-30 19:20:22 +02:00
gpio-stp-xway.c gpio: gpio-stp-xway.c: fix checkpatch error 2013-03-27 16:05:16 +01:00
gpio-sx150x.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-tc3589x.c gpio: tc3589x: remove unnecessary platform_set_drvdata() 2013-05-30 19:20:21 +02:00
gpio-tegra.c drivers/gpio: don't check resource with devm_ioremap_resource 2013-05-18 11:55:19 +02:00
gpio-timberdale.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-tnetv107x.c ARM: 7039/1: mach-davinci: move DaVinci TNET GPIO driver to GPIO subsystem 2011-08-22 09:12:55 +01:00
gpio-tps6586x.c This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
gpio-tps65910.c gpio: gpio-tps65910.c: fix checkpatch error 2013-03-27 16:05:18 +01:00
gpio-tps65912.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-ts5500.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-twl4030.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-twl6040.c GPIO: gpio-twl6040: Remove support for legacy (pdata) mode 2013-07-20 21:38:18 +02:00
gpio-tz1090-pdc.c gpio-tz1090-pdc: add TZ1090 PDC gpio driver 2013-07-20 19:03:48 +02:00
gpio-tz1090.c gpio-tz1090: convert to use generic irqchip 2013-07-20 19:05:15 +02:00
gpio-ucb1400.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-viperboard.c gpio: Don't override the error code in probe error handling 2013-05-20 20:27:30 +02:00
gpio-vr41xx.c gpio: remove use of __devexit 2012-11-28 11:39:59 -08:00
gpio-vx855.c gpio: vx855: remove unnecessary platform_set_drvdata() 2013-05-30 19:20:21 +02:00
gpio-wm831x.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-wm8350.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-wm8994.c gpio: use dev_get_platdata() 2013-08-16 15:24:35 +02:00
gpio-xilinx.c GPIO: xilinx: Use BIT macro 2013-06-17 07:47:33 +02:00
gpiolib-acpi.c gpiolib-acpi: introduce acpi_get_gpio_by_index() helper 2013-04-12 00:31:18 +02:00
gpiolib-of.c Device tree core updates for v3.12 2013-09-10 13:53:52 -07:00
gpiolib.c gpiolib: let gpiod_request() return -EPROBE_DEFER 2013-10-11 16:31:54 +02:00
Kconfig Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
Makefile Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-09-12 16:14:49 -07:00