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| author | Mugunthan V N <mugunthanvnm@ti.com> | 2015-10-13 13:57:16 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-10-22 14:44:02 -0400 |
| commit | 1ed0f85fafcbc466081deb7640a62e0a603ba8e0 (patch) | |
| tree | 055b2f2a2f5beb9cdb319c709baf810df463774b /drivers/gpio | |
| parent | eae7ae18533550b61a9d459deafaeeb460dcf6b7 (diff) | |
| download | u-boot-1ed0f85fafcbc466081deb7640a62e0a603ba8e0.tar.gz u-boot-1ed0f85fafcbc466081deb7640a62e0a603ba8e0.tar.xz u-boot-1ed0f85fafcbc466081deb7640a62e0a603ba8e0.zip | |
drivers: gpio: omap: add support for parsing additional gpio parameters
With DM_GPIO, gpio parameters like ACTIVE_(LOW/HIGH) are to be
parsed in xlate gpio drivers-ops. Since xlate is not implemented
in omap_gpio driver, the driver considers all gpio to be
ACTIVE_HIGH which is the default case and fails to return actual
gpio status for ACTIVE_LOW gpios. So adding .xlate ops to
omap_gpio.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/omap_gpio.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c index cd960dc013..93d18e44a5 100644 --- a/drivers/gpio/omap_gpio.c +++ b/drivers/gpio/omap_gpio.c @@ -25,6 +25,7 @@ #include <asm/io.h> #include <asm/errno.h> #include <malloc.h> +#include <dt-bindings/gpio/gpio.h> DECLARE_GLOBAL_DATA_PTR; @@ -276,12 +277,22 @@ static int omap_gpio_get_function(struct udevice *dev, unsigned offset) return GPIOF_INPUT; } +static int omap_gpio_xlate(struct udevice *dev, struct gpio_desc *desc, + struct fdtdec_phandle_args *args) +{ + desc->offset = args->args[0]; + desc->flags = args->args[1] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0; + + return 0; +} + static const struct dm_gpio_ops gpio_omap_ops = { .direction_input = omap_gpio_direction_input, .direction_output = omap_gpio_direction_output, .get_value = omap_gpio_get_value, .set_value = omap_gpio_set_value, .get_function = omap_gpio_get_function, + .xlate = omap_gpio_xlate, }; static int omap_gpio_probe(struct udevice *dev) |