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linux/drivers/gpio
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Geert Uytterhoeven 40c8eabac4 gpio: Propagate all errors in devm_get_gpiod_from_child() 
devm_get_gpiod_from_child() tries several property suffixes to find a
GPIO descriptor. If all suffixes fail and no probe deferral has been
detected, it returns the error of the last try.

However, if any but the last try fails with a real error (e.g. -EBUSY),
this error is not propagated, and -ENOENT will be returned.
This confuses drivers that e.g. want to detect if a GPIO is already in
use.

To fix this, change the loop logic to continue on -ENOENT, which
indicates the property was not found and the next suffix should be
tried, and propagate all other detected errors.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 10:04:25 +01:00
..
devres.c
gpio: Propagate all errors in devm_get_gpiod_from_child()
2016-02-25 10:04:25 +01:00
gpio-74x164.c
gpio: 74x164: use gpiochip data pointer
2016-01-05 11:21:01 +01:00
gpio-74xx-mmio.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-104-dio-48e.c
gpio: 104-dio-48e: Use devm_request_region
2016-02-16 00:19:51 +01:00
gpio-104-idi-48.c
gpio: 104-idi-48: Use devm_request_region
2016-02-16 00:19:51 +01:00
gpio-104-idio-16.c
gpio: 104-idio-16: Use devm_request_region
2016-02-16 00:19:52 +01:00
gpio-adnp.c
gpio: adnp: use gpiochip data pointer
2016-01-05 11:21:01 +01:00
gpio-adp5520.c
gpio: adp5520: use gpiochip data pointer
2016-01-05 11:21:02 +01:00
gpio-adp5588.c
gpio: adp5588: use gpiochip data pointer
2016-01-05 11:21:02 +01:00
gpio-altera.c
gpio: altera: use gpiochip data pointer
2016-01-05 11:21:02 +01:00
gpio-amd8111.c
gpio: amd8111: Use devm_request_region
2016-02-16 00:19:52 +01:00
gpio-amdpt.c
gpio: amdpt: use gpiochip data pointer
2016-01-05 11:21:02 +01:00
gpio-arizona.c
GPIO bulk updates for the v4.5 kernel cycle:
2016-01-17 12:32:01 -08:00
gpio-ath79.c
gpio: ath79: Update the copyright notice
2016-02-10 11:38:21 +01:00
gpio-bcm-kona.c
gpio: bcm-kona: use gpiochip data pointer
2016-01-05 11:21:03 +01:00
gpio-brcmstb.c
gpio: brcmstb: Set endian flags for big-endian MIPS
2016-01-07 16:25:09 +01:00
gpio-bt8xx.c
gpio: bt8xx: use gpiochip data pointer
2016-01-05 11:21:03 +01:00
gpio-clps711x.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-crystalcove.c
gpio: crystalcove: use gpiochip data pointer
2016-01-05 11:21:04 +01:00
gpio-cs5535.c
gpio: cs5535: use gpiochip data pointer
2016-01-05 11:21:04 +01:00
gpio-da9052.c
gpio: da9052: use gpiochip data pointer
2016-01-05 11:21:04 +01:00
gpio-da9055.c
gpio: da9055: use gpiochip data pointer
2016-01-05 11:21:04 +01:00
gpio-davinci.c
gpio: davinci: Fix possible NULL pointer deference
2016-02-16 00:20:04 +01:00
gpio-dln2.c
gpio: dln2: use gpiochip data pointer
2016-01-05 11:21:05 +01:00
gpio-dwapb.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-em.c
gpio: em: use gpiochip data pointer
2016-01-05 11:21:05 +01:00
gpio-ep93xx.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-etraxfs.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-f7188x.c
gpio-f7188x: Add F81866 GPIO supports
2016-01-28 10:06:12 +01:00
gpio-ge.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-generic.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-grgpio.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-ich.c
gpio: ich: Use devm_request_region
2016-02-16 00:19:53 +01:00
gpio-intel-mid.c
gpio: intel-mid: use gpiochip data pointer
2016-01-05 11:21:05 +01:00
gpio-iop.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-it87.c
gpio: it87: use gpiochip data pointer
2016-01-05 11:21:06 +01:00
gpio-janz-ttl.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-kempld.c
gpio: kempld: use gpiochip data pointer
2016-01-05 11:21:06 +01:00
gpio-ks8695.c
gpio: ks8695: remove irq_to_gpio function
2016-02-19 00:20:30 +01:00
gpio-loongson.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-lp3943.c
gpio: lp3943: use gpiochip data pointer
2016-01-05 11:21:06 +01:00
gpio-lpc18xx.c
gpio: lpc18xx: use gpiochip data pointer
2016-01-05 11:21:06 +01:00
gpio-lpc32xx.c
gpio: lpc32xx: use gpiochip data pointer
2016-01-05 11:21:06 +01:00
gpio-lynxpoint.c
gpio: lynxpoint: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-max730x.c
gpio: max730x: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-max732x.c
gpio: max732x: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-max7300.c
gpio: Drop owner assignment from i2c_driver
2015-11-30 09:31:00 +01:00
gpio-max7301.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
gpio-mb86s7x.c
gpio: mb86s7x: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-mc9s08dz60.c
gpio: mc9s08dz60: use gpiochip data pointer
2016-01-05 11:21:08 +01:00
gpio-mc33880.c
gpio: mc33880: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-mcp23s08.c
gpio-mcp23s08: correctly handling failed allocation
2016-02-16 16:36:22 +01:00
gpio-ml-ioh.c
gpio: ml-ioh: use gpiochip data pointer
2016-01-05 11:21:08 +01:00
gpio-mm-lantiq.c
gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs()
2016-01-13 10:21:06 +01:00
gpio-moxart.c
gpio: moxart: fix build regression
2016-01-07 16:16:38 +01:00
gpio-mpc8xxx.c
drivers/gpio: Switch gpio-mpc8xxx to use gpio-generic
2016-02-08 18:32:58 +01:00
gpio-mpc5200.c
gpio: Include linux/gpio.h instead of asm/gpio.h
2016-02-16 00:20:03 +01:00
gpio-msic.c
gpio: msic: use gpiochip data pointer
2016-01-05 11:21:09 +01:00
gpio-mvebu.c
gpio: mvebu: use gpiochip data pointer
2016-01-05 11:21:09 +01:00
gpio-mxc.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-mxs.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-octeon.c
gpio: octeon: use gpiochip data pointer
2016-01-05 11:21:10 +01:00
gpio-omap.c
gpio: omap: use gpiochip data pointer
2016-01-05 11:21:10 +01:00
gpio-palmas.c
gpio: palmas: use gpiochip data pointer
2016-01-05 11:21:10 +01:00
gpio-pca953x.c
gpio: pca953x: use gpiochip data pointer
2016-01-05 11:21:11 +01:00
gpio-pcf857x.c
gpio: pcf857x: use gpiochip data pointer
2016-01-05 11:21:11 +01:00
gpio-pch.c
gpio: pch: Optimize pch_gpio_get()
2016-01-05 15:46:34 +01:00
gpio-pisosr.c
gpio: pisosr: add missing unlock
2016-02-19 12:56:13 +01:00
gpio-pl061.c
gpio: pl061: use gpiochip data pointer
2016-01-05 11:21:11 +01:00
gpio-pxa.c
gpio: pxa: use gpiochip data pointer
2016-01-05 11:21:12 +01:00
gpio-rc5t583.c
gpio: rc5t583: use gpiochip data pointer
2016-01-05 11:21:12 +01:00
gpio-rcar.c
gpio: rcar: use gpiochip data pointer
2016-01-05 11:21:12 +01:00
gpio-rdc321x.c
gpio: rdc321x: use gpiochip data pointer
2016-01-05 11:21:12 +01:00
gpio-sa1100.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-sch311x.c
gpio: sch311x: Use devm_request_region
2016-02-16 00:19:53 +01:00
gpio-sch.c
gpio: sch: use gpiochip data pointer
2016-01-05 11:21:13 +01:00
gpio-sodaville.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-spear-spics.c
gpio: spear-spics: use gpiochip data pointer
2016-01-05 11:21:13 +01:00
gpio-sta2x11.c
gpio: sta2x11: use gpiochip data pointer
2016-01-05 11:21:13 +01:00
gpio-stmpe.c
gpio: stmpe: use gpiochip data pointer
2016-01-05 11:21:14 +01:00
gpio-stp-xway.c
gpio: stp-xway: use gpiochip data pointer
2016-01-05 11:21:14 +01:00
gpio-sx150x.c
gpio: sx150x: use gpiochip data pointer
2016-01-05 11:21:14 +01:00
gpio-syscon.c
gpio: syscon: use gpiochip data pointer
2016-01-05 11:21:14 +01:00
gpio-tb10x.c
gpio: tb10x: use gpiochip data pointer
2016-01-05 11:21:15 +01:00
gpio-tc3589x.c
gpio: tc3589x: use gpiochip data pointer
2016-01-05 11:21:15 +01:00
gpio-tegra.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-timberdale.c
gpio: timberdale: use gpiochip data pointer
2016-01-05 11:21:15 +01:00
gpio-tpic2810.c
gpio: tpic2810: Make tpic2810_direction_output set proper output level
2016-02-16 15:56:51 +01:00
gpio-tps6586x.c
gpio: tps6586x: use gpiochip data pointer
2016-01-05 11:21:15 +01:00
gpio-tps65218.c
gpio: tps65218: remove unused #include
2016-02-19 09:22:41 +01:00
gpio-tps65910.c
gpio: tps65910: use gpiochip data pointer
2016-01-05 11:21:15 +01:00
gpio-tps65912.c
gpio: tps65912: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-ts4800.c
gpio: TS-4800: remove useless bgpio_init flags
2016-02-16 00:20:03 +01:00
gpio-ts5500.c
gpio: ts5500: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-twl4030.c
gpio: twl4030: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-twl6040.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-tz1090-pdc.c
gpio: tz1090-pdc: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-tz1090.c
gpio: tz1090: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-ucb1400.c
gpio: ucb1400: use gpiochip data pointer
2016-01-05 11:21:17 +01:00
gpio-vf610.c
gpio: vf610: use gpiochip data pointer
2016-01-05 11:21:17 +01:00
gpio-viperboard.c
gpio: viperboard: use gpiochip data pointer
2016-01-05 11:21:17 +01:00
gpio-vr41xx.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-vx855.c
gpio: vx855: use gpiochip data pointer
2016-01-05 11:21:18 +01:00
gpio-wm831x.c
gpio: wm831x: use gpiochip data pointer
2016-01-05 11:21:18 +01:00
gpio-wm8350.c
gpio: wm8350: use gpiochip data pointer
2016-01-05 11:21:18 +01:00
gpio-wm8994.c
gpio: wm8994: use gpiochip data pointer
2016-01-05 11:21:18 +01:00
gpio-ws16c48.c
gpio: ws16c48: Use devm_request_region
2016-02-16 00:19:54 +01:00
gpio-xgene-sb.c
gpio: xgene: Enable X-Gene standby GPIO as interrupt controller
2016-02-19 10:10:41 +01:00
gpio-xgene.c
gpio: xgene: use gpiochip data pointer
2016-01-05 11:21:19 +01:00
gpio-xilinx.c
gpio: xilinx: Do not use gpiochip_get_data() in xgpio_save_regs()
2016-01-07 10:06:56 +01:00
gpio-xlp.c
gpio: xlp: use gpiochip data pointer
2016-01-05 11:21:19 +01:00
gpio-xtensa.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-zevio.c
gpio: zevio: use gpiochip data pointer
2016-01-05 11:21:19 +01:00
gpio-zx.c
gpio: zx: use gpiochip data pointer
2016-01-05 11:21:19 +01:00
gpio-zynq.c
gpio: zynq: use gpiochip data pointer
2016-01-05 11:21:20 +01:00
gpiolib-acpi.c
gpio: move the pin ranges into gpio_device
2016-02-16 00:20:02 +01:00
gpiolib-legacy.c
gpiolib: Split GPIO flags parsing and GPIO configuration
2015-10-16 22:46:46 +02:00
gpiolib-of.c
gpio: of: provide optional of_mm_gpiochip_add_data() function
2016-01-05 11:20:12 +01:00
gpiolib-sysfs.c
gpio: reflect base and ngpio into gpio_device
2016-02-11 20:29:46 +01:00
gpiolib.c
gpio: fixup line flags for userspace ABI
2016-02-22 13:44:53 +01:00
gpiolib.h
gpio: store reflect the label to userspace
2016-02-19 09:48:41 +01:00
Kconfig
gpio: add tps65218 gpio
2016-02-11 12:25:16 +01:00
Makefile
gpio: add tps65218 gpio
2016-02-11 12:25:16 +01:00