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linux/drivers/gpio
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Maxime Ripard 6662ae6af8 gpiolib: Keep returning EPROBE_DEFER when we should 
Commits c85823390215 ("gpio: of: Support SPI nonstandard GPIO properties")
and 6a537d48461d ("gpio: of: Support regulator nonstandard GPIO
properties") have introduced a regression in the way error codes from
of_get_named_gpiod_flags are handled.

Previously, those errors codes were returned immediately, but the two
commits mentioned above are now overwriting the error pointer, meaning that
whatever value has been returned will be dropped in favor of whatever the
two new functions will return.

This might not be a big deal except for EPROBE_DEFER, on which GPIOlib
customers will depend on, and that will now be returned as an hard error
which means that they will not probe anymore, instead of gently deferring
their probe.

Since EPROBE_DEFER basically means that we have found a valid property but
there was no GPIO controller registered to handle it, fix this issues by
returning it as soon as we encounter it.

Fixes: c85823390215 ("gpio: of: Support SPI nonstandard GPIO properties")
Fixes: 6a537d48461d ("gpio: of: Support regulator nonstandard GPIO properties")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Fold in fix to the fix]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-02-27 09:47:32 +01:00
..
devres.c
gpio: Export devm_gpiod_get_from_of_node() for consumers
2018-01-12 11:05:24 +01:00
gpio-74x164.c
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
gpio-74xx-mmio.c
gpio: 74xx-mmio: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:19:42 +05:30
gpio-104-dio-48e.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-104-idi-48.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-104-idio-16.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-adnp.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-adp5520.c
gpio: adp5520: Include proper header
2018-01-13 22:12:07 +01:00
gpio-adp5588.c
gpio: adp5588: Include proper header
2018-01-13 22:14:56 +01:00
gpio-altera-a10sr.c
gpio: altera-a10sr: constify gpio_chip structure
2017-08-14 15:01:12 +02:00
gpio-altera.c
gpio: altera: Include GPIO driver header
2018-01-13 22:18:34 +01:00
gpio-amd8111.c
gpio: amd8111: Include proper header
2018-01-13 22:22:49 +01:00
gpio-amdpt.c
gpio: amdpt: Add a new ACPI HID
2016-03-30 10:38:51 +02:00
gpio-arizona.c
gpio: arizona: Include proper header
2018-01-13 22:47:48 +01:00
gpio-aspeed.c
gpio: fix aspeed_gpio_banks array size check
2017-12-28 13:53:06 +01:00
gpio-ath79.c
gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE
2017-12-02 22:42:22 +01:00
gpio-bcm-kona.c
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
gpio-bd9571mwv.c
gpio: Add ROHM BD9571MWV-M PMIC GPIO driver
2017-04-28 09:47:46 +02:00
gpio-brcmstb.c
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
gpio-bt8xx.c
gpio: bt8xx: Include proper header
2018-01-13 22:56:52 +01:00
gpio-clps711x.c
gpio: clps711x: Remove board support
2016-06-08 10:49:58 +02:00
gpio-crystalcove.c
gpio: crystalcove: Include proper header
2018-01-14 01:48:48 +01:00
gpio-cs5535.c
gpio: cs5535: Include proper header
2018-01-14 01:56:24 +01:00
gpio-da9052.c
gpio: da905x: Include proper header
2018-01-14 02:00:10 +01:00
gpio-da9055.c
gpio: da905x: Include proper header
2018-01-14 02:00:10 +01:00
gpio-davinci.c
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
gpio-dln2.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-dwapb.c
gpio: dwapb: fix bgpio usage
2017-10-25 11:25:10 +02:00
gpio-em.c
pinctrl/gpio: Unify namespace for cross-calls
2017-09-22 11:02:10 +02:00
gpio-ep93xx.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-etraxfs.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gpio-exar.c
gpio: exar: Use correct property prefix and document bindings
2017-08-01 13:43:55 +02:00
gpio-f7188x.c
gpio: f7188x: Add a missing break
2017-04-28 10:09:16 +02:00
gpio-ftgpio010.c
gpio: ftgpio010: Fix platform_get_irq's error checking
2017-12-02 22:42:35 +01:00
gpio-ge.c
gpio: Convert to using %pOF instead of full_name
2017-08-14 15:01:12 +02:00
gpio-gpio-mm.c
Annotate hardware config module parameters in drivers/gpio/
2017-04-20 12:02:32 +01:00
gpio-grgpio.c
gpio: grgpio: Do not use gc->pin2mask()
2017-10-25 11:25:38 +02:00
gpio-htc-egpio.c
gpio: htc-egpio: read output value from cache
2016-11-13 11:50:22 +01:00
gpio-ich.c
gpio: ich: Use devm_request_region
2016-02-16 00:19:53 +01:00
gpio-ingenic.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-intel-mid.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-iop.c
gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2017-12-02 22:42:21 +01:00
gpio-it87.c
gpio: it87: fix mojibake in module metadata
2017-12-02 22:42:32 +01:00
gpio-janz-ttl.c
gpio: janz-ttl: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:33 +05:30
gpio-kempld.c
gpio: kempld: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:34 +05:30
gpio-ks8695.c
gpio: ks8695: remove irq_to_gpio function
2016-02-19 00:20:30 +01:00
gpio-loongson1.c
gpio: loongson1: fix bgpio usage
2017-10-25 11:25:38 +02:00
gpio-loongson.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-lp873x.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-lp3943.c
Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
2016-03-09 22:00:27 +07:00
gpio-lp87565.c
gpio: lp87565: Set proper output level and direction for direction_output
2017-07-31 15:26:57 +02:00
gpio-lpc18xx.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-lpc32xx.c
gpio: lpc32xx: remove unused platform data file
2016-09-12 14:23:37 +02:00
gpio-lynxpoint.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-max730x.c
gpio: max730x: set gpiochip data pointer before using it
2016-08-10 15:40:44 +02:00
gpio-max732x.c
gpio: max732x: Remove duplicate NULL check
2017-11-29 13:25:23 +01:00
gpio-max3191x.c
gpio: Add driver for Maxim MAX3191x industrial serializer
2017-10-19 22:40:07 +02:00
gpio-max7300.c
…
gpio-max7301.c
…
gpio-max77620.c
gpio: max77620: Make regmap_irq_chip const
2017-08-14 16:06:24 +02:00
gpio-mb86s7x.c
gpio: mb86s70: Revert "Return error if requesting an already assigned gpio"
2017-10-31 13:13:34 +01:00
gpio-mc9s08dz60.c
gpio: mc9s08dz60: make explicitly non-modular
2016-03-31 15:02:09 +02:00
gpio-mc33880.c
gpio: mc33880: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-menz127.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-merrifield.c
gpio: merrifield: Add support of ACPI enabled platforms
2018-01-10 00:43:42 +01:00
gpio-ml-ioh.c
gpio: ml-ioh: use devres for irq generic chip
2017-08-21 00:06:35 +02:00
gpio-mm-lantiq.c
gpio: update my email address
2016-12-30 09:18:10 +01:00
gpio-mmio.c
gpio: mmio: Also read bits that are zero
2018-01-16 23:42:36 +01:00
gpio-mockup.c
gpio: mockup: fix a return value check
2017-12-08 15:34:15 +01:00
gpio-mpc8xxx.c
gpio: mpc8xxx: Do not reverse bits using bgpio
2017-10-25 11:25:40 +02:00
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: fix error return code in platform_msic_gpio_probe()
2017-08-14 15:03:38 +02:00
gpio-mvebu.c
gpio: mvebu: Fix cause computation in irq handler
2017-08-14 15:00:43 +02:00
gpio-mxc.c
gpio: mxc: use devres for irq generic chip
2017-08-21 00:09:33 +02:00
gpio-mxs.c
gpio: mxs: use devres for irq generic chip
2017-08-21 00:10:00 +02:00
gpio-octeon.c
gpio: octeon: Constify octeon_gpio_match table
2016-03-30 10:38:51 +02:00
gpio-omap.c
gpio: omap: Give unique labels to each GPIO bank/chip
2018-01-03 08:46:08 +01:00
gpio-palmas.c
gpio: palmas: fix implicit assumption module.h is present
2016-09-15 13:57:43 +02:00
gpio-pca953x.c
gpio: pca953x: fix vendor prefix for PCA9654
2017-12-02 22:41:43 +01:00
gpio-pcf857x.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-pch.c
gpio: pch: use devres for irq generic chip
2017-08-21 00:08:52 +02:00
gpio-pci-idio-16.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-pcie-idio-24.c
gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family
2018-01-10 14:39:28 +01:00
gpio-pisosr.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-pl061.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-pxa.c
gpio: pxa: Use library functions
2017-10-07 00:01:08 +02:00
gpio-rc5t583.c
gpio: rc5t583: make explicitly non-modular
2016-04-05 17:02:35 +02:00
gpio-rcar.c
Merge branch 'gpio-irqchip-rework' of /home/linus/linux-gpio into devel
2017-11-09 09:38:42 +01:00
gpio-rdc321x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-reg.c
gpio: gpio-reg: fix build
2017-12-22 15:24:31 +01:00
gpio-sa1100.c
gpio: sa1100: implement get_direction method
2017-03-24 14:04:37 +01:00
gpio-sch311x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-sch.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-sodaville.c
gpio: sodaville: use resource management for irqs
2017-03-15 11:16:36 +01:00
gpio-spear-spics.c
gpio: spear-spics: drop unused MODULE_ tags from non-modular code
2016-08-23 11:23:41 +02:00
gpio-sta2x11.c
gpio: sta2x11: use devres for irq generic chip
2017-08-21 00:06:04 +02:00
gpio-stmpe.c
gpio: stmpe: Delete an unnecessary variable initialisation in stmpe_gpio_probe()
2018-01-17 07:44:16 +01:00
gpio-stp-xway.c
gpio: update my email address
2016-12-30 09:18:10 +01:00
gpio-syscon.c
gpio: syscon: Change the compatibility string
2016-06-08 10:48:17 +02:00
gpio-tb10x.c
gpio: tb10x: Handle return value of devm_kasprintf
2017-09-21 14:14:17 +02:00
gpio-tc3589x.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-tegra186.c
gpio: tegra186: Remove tegra186_gpio_lock_class
2017-11-13 11:43:10 +01:00
gpio-tegra.c
kernel/irq: Extend lockdep class for request mutex
2017-12-28 12:26:35 +01:00
gpio-thunderx.c
gpio: thunderx: fix error return code in thunderx_gpio_probe()
2018-01-11 10:49:32 +01:00
gpio-timberdale.c
gpio: timberdale: make it explicitly non-modular
2016-05-11 13:49:11 +02:00
gpio-tpic2810.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-tps6586x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-tps65086.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-tps65218.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-tps65910.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-tps65912.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-tps68470.c
gpio: Add support for TPS68470 GPIOs
2017-08-14 15:37:38 +02:00
gpio-ts4800.c
gpio: ts4800: Fix module autoload
2016-10-21 14:55:07 +02:00
gpio-ts4900.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-ts5500.c
gpio: ts5500: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:49 +05:30
gpio-twl4030.c
mfd: twl: Move header file out of I2C realm
2017-09-04 14:41:02 +01:00
gpio-twl6040.c
gpio: twl6040: remove unneeded forward declaration
2017-08-23 10:20:16 +02:00
gpio-tz1090-pdc.c
gpio: tz1090-pdc: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-tz1090.c
pinctrl/gpio: Unify namespace for cross-calls
2017-09-22 11:02:10 +02:00
gpio-ucb1400.c
gpio: ucb1400: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:50 +05:30
gpio-uniphier.c
gpio: uniphier: fix mismatch between license text and MODULE_LICENSE
2017-11-30 15:37:42 +01:00
gpio-vf610.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-viperboard.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-vr41xx.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-vx855.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-wcove.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-winbond.c
gpio: winbond: Add driver
2018-01-09 14:51:00 +01:00
gpio-wm831x.c
gpio: wm831x: Add basic device tree support
2017-03-23 11:45:55 +00:00
gpio-wm8350.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-wm8994.c
pinctrl / gpio: Introduce .set_config() callback for GPIO chips
2017-01-26 15:27:37 +01:00
gpio-ws16c48.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-xgene-sb.c
genirq/irqdomain: Rename early argument of irq_domain_activate_irq()
2017-12-29 21:13:04 +01:00
gpio-xgene.c
gpio: xgene: mark PM functions as __maybe_unused
2017-03-06 14:35:22 +01:00
gpio-xilinx.c
gpio: Convert to using %pOF instead of full_name
2017-08-14 15:01:12 +02:00
gpio-xlp.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-xra1403.c
gpio: xra1403: Add EXAR XRA1403 SPI GPIO expander driver
2017-05-22 17:48:41 +02:00
gpio-xtensa.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-zevio.c
gpio: zevio: make gpio_chip const
2017-08-23 09:21:54 +02:00
gpio-zx.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpio-zynq.c
gpio: Move irqdomain into struct gpio_irq_chip
2017-11-08 14:06:21 +01:00
gpiolib-acpi.c
This is the bulk of pin control changes for the v4.16 kernel cycle:
2018-02-02 14:22:53 -08:00
gpiolib-devprop.c
gpio: fix "gpio-line-names" property retrieval
2017-12-22 15:24:31 +01:00
gpiolib-legacy.c
Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"
2016-07-04 16:51:29 +02:00
gpiolib-of.c
gpiolib: Keep returning EPROBE_DEFER when we should
2018-02-27 09:47:32 +01:00
gpiolib-sysfs.c
gpio: sysfs: avoid using kstrtol() in 'value' attribute write
2017-12-20 10:34:58 +01:00
gpiolib.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
gpiolib.h
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
Kconfig
gpio: winbond: fix ISA_BUS_API dependency
2018-01-11 10:17:32 +01:00
Makefile
gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family
2018-01-10 14:39:28 +01:00