commit b19e7f51a55fe740c18038d1d6957aedfc078d07
author Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Wed Apr 29 18:34:59 2015 +0300
committer Linus Walleij <linus.walleij@linaro.org> Mon May 11 11:49:02 2015 +0200
tree 69601960687fdab39deb1e3ac2b3cc809e356c52
parent ff71880006795290f371caae13e740491ec76956

gpio: gpio-generic: add flag to read out output value from reg_set

The change introduces BGPIOF_READ_OUTPUT_REG_SET flag for gpio-generic
GPIO chip implementation, which allows to get correct configured value
from reg_set register, input value is still get from reg_dat.

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

include/linux/basic_mmio_gpio.h

diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h
index 0e97856..14eea94 100644
--- a/include/linux/basic_mmio_gpio.h
+++ b/include/linux/basic_mmio_gpio.h
@@ -74,5 +74,6 @@
 #define BGPIOF_UNREADABLE_REG_SET	BIT(1) /* reg_set is unreadable */
 #define BGPIOF_UNREADABLE_REG_DIR	BIT(2) /* reg_dir is unreadable */
 #define BGPIOF_BIG_ENDIAN_BYTE_ORDER	BIT(3)
+#define BGPIOF_READ_OUTPUT_REG_SET     BIT(4) /* reg_set stores output value */
 
 #endif /* __BASIC_MMIO_GPIO_H */