gpio: rcar: Use of_device_get_match_data() helper

Use the of_device_get_match_data() helper instead of open coding.
Note that the gpio-rcar driver is used with DT only, so there's always a
valid match.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 1f0871553fd20d0f41c710b6fd0be21f202ab442..de5c010e69266264580cc0e823729e8c9ffc6a23 100644 (file)
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -393,16 +394,11 @@ MODULE_DEVICE_TABLE(of, gpio_rcar_of_table);
 static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins)
 {
        struct device_node *np = p->pdev->dev.of_node;
-       const struct of_device_id *match;
        const struct gpio_rcar_info *info;
        struct of_phandle_args args;
        int ret;
 
-       match = of_match_node(gpio_rcar_of_table, np);
-       if (!match)
-               return -EINVAL;
-
-       info = match->data;
+       info = of_device_get_match_data(&p->pdev->dev);
 
        ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args);
        *npins = ret == 0 ? args.args[2] : RCAR_MAX_GPIO_PER_BANK;