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3 commits

Author SHA1 Message Date
Grygorii Strashko
2c341d62eb gpio: syscon: add soc specific callback to assign output value 
Some SoCs (like Keystone) may require to perform special
sequence of operations to assign output GPIO value, so default
implementation of .set() callback from gpio-syscon driver
can't be used.

Hence, add optional, SoC specific callback to assign output
gpio value.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2014-09-16 14:39:00 -07:00
abdoulaye berthe
9f5132ae82 gpio: remove all usage of gpio_remove retval in driver/gpio 
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2014-07-22 16:39:26 +02:00
Alexander Shiyan
6a8a0c1d87 gpio: Driver for SYSCON-based GPIOs 
SYSCON driver was designed for using memory areas (registers)
that are used in several subsystems. There are systems (CPUs)
which use bits in one register for various purposes and thus
should be handled by various kernel subsystems. This driver
allows you to use the individual SYSCON bits as GPIOs.
ARM CLPS711X SYSFLG1 input lines has been added as first user
of this driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2014-03-18 09:28:31 +01:00