diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-05-19 17:34:58 +0400 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-05-19 22:17:35 +0400 |
| commit | 3e11f7b840b4671213c66817294ad7dd0b572756 (patch) | |
| tree | fc9246cd2e491e8c9b6f7cec994da2b314b7c4ca /include/linux/basic_mmio_gpio.h | |
| parent | 07ce8ec7308ab3fa55fe2861671b157f857fff58 (diff) | |
| download | linux-3e11f7b840b4671213c66817294ad7dd0b572756.tar.xz | |
gpio/generic: initialize basic_mmio_gpio shadow variables properly
It fixes the issue in gpio-generic that commit fb14921 (gpio/mxc: add
missing initialization of basic_mmio_gpio shadow variables) manged to
fix in gpio-mxc driver, so that other platform specific drivers do not
suffer from the same problem over and over again.
Changes since v1:
* Turn the last parameter of bgpio_init() "bool big_endian" into
"unsigned long flags" and give those really quirky hardwares a
chance to tell that reg_set and reg_dir are unreadable.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[grant.likely: Fix big-endian usage to explicitly set BBGPIOF_BIG_ENDIAN]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/basic_mmio_gpio.h')
| -rw-r--r-- | include/linux/basic_mmio_gpio.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h index feb912196745..1c504ca5bdb3 100644 --- a/include/linux/basic_mmio_gpio.h +++ b/include/linux/basic_mmio_gpio.h @@ -67,6 +67,10 @@ int bgpio_remove(struct bgpio_chip *bgc); int bgpio_init(struct bgpio_chip *bgc, struct device *dev, unsigned long sz, void __iomem *dat, void __iomem *set, void __iomem *clr, void __iomem *dirout, void __iomem *dirin, - bool big_endian); + unsigned long flags); + +#define BGPIOF_BIG_ENDIAN BIT(0) +#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */ +#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */ #endif /* __BASIC_MMIO_GPIO_H */ |