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| author | Hans de Goede <hdegoede@redhat.com> | 2014-12-24 19:34:38 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-14 14:56:38 +0100 |
| commit | 6c727e09a022fcc0701eef58c4a5aedae5d9a6ac (patch) | |
| tree | b03dcd3a57abfd69fa7747c24ac91ff706cf7d33 /arch/arm | |
| parent | d27f7d14eaa1299b93c1e5efb691ddf0884885fa (diff) | |
| download | u-boot-imx-6c727e09a022fcc0701eef58c4a5aedae5d9a6ac.zip u-boot-imx-6c727e09a022fcc0701eef58c4a5aedae5d9a6ac.tar.gz u-boot-imx-6c727e09a022fcc0701eef58c4a5aedae5d9a6ac.tar.bz2 | |
sunxi: gpio: Add support for gpio pins on the AXP209 pmic
Some boards use GPIO-s on the pmic, one example of this is the A13-OLinuXino
board, which uses gpio0 of the axp209 for the lcd-power signal.
This commit adds support for gpio pins on the AXP209 pmic, the sunxi_gpio.c
changes are universal, adding gpio support for the other AXP pmics (when
necessary) should be a matter of adding the necessary axp_gpio_foo functions
to their resp. drivers, and add "#define AXP_GPIO" to their header file.
Note this commit only adds support for the non device-model version of the
gpio code, patches for adding support to the device-model version are very
welcome.
The string representation for these gpio-s is AXP0-#, the 0 in the AXP0 prefix
is there in case we need to support gpio-s on more then 1 pmic in the future.
At least A80 boards have 2 pmics, and we may end up needing to support gpio-s
on both.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/gpio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h index 6730879..32941cb 100644 --- a/arch/arm/include/asm/arch-sunxi/gpio.h +++ b/arch/arm/include/asm/arch-sunxi/gpio.h @@ -114,6 +114,7 @@ enum sunxi_gpio_number { SUNXI_GPIO_I_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_H), SUNXI_GPIO_L_START = 352, SUNXI_GPIO_M_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_L), + SUNXI_GPIO_AXP0_START = 1024, }; /* SUNXI GPIO number definitions */ @@ -129,6 +130,8 @@ enum sunxi_gpio_number { #define SUNXI_GPL(_nr) (SUNXI_GPIO_L_START + (_nr)) #define SUNXI_GPM(_nr) (SUNXI_GPIO_M_START + (_nr)) +#define SUNXI_GPAXP0(_nr) (SUNXI_GPIO_AXP0_START + (_nr)) + /* GPIO pin function config */ #define SUNXI_GPIO_INPUT 0 #define SUNXI_GPIO_OUTPUT 1 |