gpio: samsung: adapt to changes in gpio specifier translator function declaration

Commit 15c9a0acc3f7 (of: create of_phandle_args to simplify return of phandle
parsing data) modifies the parameter list of of_xlate function pointer declaration
in gpio_chip. Adapt the gpio specifier translate function for this change.

Reported-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Tested-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index a766177..0a79a11 100644 (file)
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2387,27 +2387,30 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
 };
 
 #if defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF)
-static int exynos4_gpio_xlate(struct gpio_chip *gc, struct device_node *np,
-                             const void *gpio_spec, u32 *flags)
+static int exynos4_gpio_xlate(struct gpio_chip *gc,
+                       const struct of_phandle_args *gpiospec, u32 *flags)
 {
-       const __be32 *gpio = gpio_spec;
-       const u32 n = be32_to_cpup(gpio);
-       unsigned int pin = gc->base + be32_to_cpu(gpio[0]);
+       unsigned int pin;
 
        if (WARN_ON(gc->of_gpio_n_cells < 4))
                return -EINVAL;
 
-       if (n > gc->ngpio)
+       if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
                return -EINVAL;
 
-       if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(be32_to_cpu(gpio[1]))))
+       if (gpiospec->args[0] > gc->ngpio)
+               return -EINVAL;
+
+       pin = gc->base + gpiospec->args[0];
+
+       if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
                pr_warn("gpio_xlate: failed to set pin function\n");
-       if (s3c_gpio_setpull(pin, be32_to_cpu(gpio[2])))
+       if (s3c_gpio_setpull(pin, gpiospec->args[2]))
                pr_warn("gpio_xlate: failed to set pin pull up/down\n");
-       if (s5p_gpio_set_drvstr(pin, be32_to_cpu(gpio[3])))
+       if (s5p_gpio_set_drvstr(pin, gpiospec->args[3]))
                pr_warn("gpio_xlate: failed to set pin drive strength\n");
 
-       return n;
+       return gpiospec->args[0];
 }
 
 static const struct of_device_id exynos4_gpio_dt_match[] __initdata = {