sunxi uses a 2 cell phandle for gpio bindings. Also there are no seperate nodes for each pin bank.
Add a custom .xlate function to map gpio phandles to the correct pin bank device. This fixes gpio_request_by_name usage.
Fixes: 7aa974858422 ("dm: sunxi: Modify the GPIO driver to support driver model") Signed-off-by: Chen-Yu Tsai wens@csie.org --- drivers/gpio/sunxi_gpio.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c index 94abbeb39adc..e8accaa33302 100644 --- a/drivers/gpio/sunxi_gpio.c +++ b/drivers/gpio/sunxi_gpio.c @@ -19,6 +19,7 @@ #include <asm/io.h> #include <asm/gpio.h> #include <dm/device-internal.h> +#include <dt-bindings/gpio/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -215,12 +216,27 @@ static int sunxi_gpio_get_function(struct udevice *dev, unsigned offset) return GPIOF_FUNC; }
+static int sunxi_gpio_xlate(struct udevice *dev, struct gpio_desc *desc, + struct fdtdec_phandle_args *args) +{ + int ret; + + ret = device_get_child(dev, args->args[0], &desc->dev); + if (ret) + return ret; + desc->offset = args->args[1]; + desc->flags = args->args[2] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0; + + return 0; +} + static const struct dm_gpio_ops gpio_sunxi_ops = { .direction_input = sunxi_gpio_direction_input, .direction_output = sunxi_gpio_direction_output, .get_value = sunxi_gpio_get_value, .set_value = sunxi_gpio_set_value, .get_function = sunxi_gpio_get_function, + .xlate = sunxi_gpio_xlate, };
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