gpio: mxc: read output value from GPIO_DR register
authorVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Wed, 29 Apr 2015 15:35:01 +0000 (18:35 +0300)
committerLinus Walleij <linus.walleij@linaro.org>
Mon, 11 May 2015 09:53:05 +0000 (11:53 +0200)
commit442b2494b17d1a4f0a14721580271eb23ebffd42
treedb63de03fa9672e820c5ce792605f7e1be23f90b
parentf30663398ee28ecd1b66ceeb6a73ef704d4abf78
gpio: mxc: read output value from GPIO_DR register

All supported iMX GPIO controllers store configured GPIO output value
in GPIO_DR data register, which is represented by GPIO generic reg_set.
Provide a BGPIOF_READ_OUTPUT_REG_SET flag to bgpio_init() to allow
correct getting of previously set output value.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
drivers/gpio/gpio-mxc.c