dm: exynos: Add a GPIO translation function

[karo-tx-uboot.git] / drivers / gpio / s5p_gpio.c

diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
index 6c41a42c177351adcd0d6f96ff81ae2a0f1036ee..0a245ba18ad0eb42bdc6b67697dbdfa7fedd20a0 100644 (file)
--- a/drivers/gpio/s5p_gpio.c
+++ b/drivers/gpio/s5p_gpio.c
@@ -13,6 +13,7 @@
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <dm/device-internal.h>
+#include <dt-bindings/gpio/gpio.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -275,12 +276,22 @@ static int exynos_gpio_get_function(struct udevice *dev, unsigned offset)
                return GPIOF_FUNC;
 }
 
+static int exynos_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_exynos_ops = {
        .direction_input        = exynos_gpio_direction_input,
        .direction_output       = exynos_gpio_direction_output,
        .get_value              = exynos_gpio_get_value,
        .set_value              = exynos_gpio_set_value,
        .get_function           = exynos_gpio_get_function,
+       .xlate                  = exynos_gpio_xlate,
 };
 
 static int gpio_exynos_probe(struct udevice *dev)
@@ -342,7 +353,7 @@ static int gpio_exynos_bind(struct udevice *parent)
                                        plat->bank_name, plat, -1, &dev);
                if (ret)
                        return ret;
-               dev->of_offset = parent->of_offset;
+               dev->of_offset = node;
        }
 
        return 0;