Roland Stigge bc841ce96f gpio: of_get_named_gpio_flags() return -EPROBE_DEFER if GPIO not yet available ...

of_get_named_gpio_flags() and of_get_named_gpio() return -EPROBE_DEFER if the
respective GPIO is not (yet) available. This is useful if driver's probe()
functions try to get a GPIO whose controller isn't probed yet. Thus, the driver
can be probed again later on.

The function still returns -EINVAL on other errors (parse error or node doesn't
exist). This way, the case of an optional/intentionally missing GPIO is handled
appropriately.

Change-Id: Icf8026b9af2192a287d8609df1054ad4d1a14658
Signed-off-by: Roland Stigge <stigge@antcom.de>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[stepanm@codeaurora.org: backported to 3.4]
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>

2012-09-06 16:44:52 -07:00

..

address.c

of/address: Add reg-names property to name an iomem resource

2012-03-19 16:20:19 -07:00

base.c

of/base: Take NULL string into account for property with multiple strings

2012-05-01 15:50:14 -07:00

device.c

drivercore: Output common devicetree information in uevent

2012-02-01 14:26:30 -07:00

fdt.c

of/fdt.c: asm/setup.h included twice

2012-02-27 10:09:25 -06:00

gpio.c

gpio: of_get_named_gpio_flags() return -EPROBE_DEFER if GPIO not yet available

2012-09-06 16:44:52 -07:00

irq.c

of/irq: Add interrupts-names property to name an irq resource

2012-03-19 16:20:20 -07:00

Kconfig

Merge commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126' into msm-3.4

2012-06-06 18:45:28 -07:00

Makefile

Merge commit 'AU_LINUX_ANDROID_ICS.04.00.04.00.126' into msm-3.4

2012-06-06 18:45:28 -07:00

of_i2c.c

…

of_mdio.c

of/mdio: fix fixed link bus name

2012-02-27 10:09:52 -06:00

of_mtd.c

of/mtd/nand: add generic bindings and helpers

2012-03-15 23:28:19 +08:00

of_net.c

…

of_pci_irq.c

…

of_pci.c

…

of_slimbus.c

slimbus: Initiialize device tree node of slimbus slave devices

2012-07-31 21:20:19 -07:00

of_spi.c

…

of_spmi.c

spmi: Add spmi_resource for non spmi-dev-container cases

2012-06-26 10:35:18 -07:00

pdt.c

…

platform.c

Merge branch 'for-armsoc' of git://git.linaro.org/people/rmk/linux-arm

2012-03-23 17:30:49 -07:00

selftest.c

of: Add of_property_match_string() to find index into a string list

2012-01-28 10:29:20 -07:00