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gpio: rcar: Use of_device_get_match_data() helper

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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>
This commit is contained in:
Geert Uytterhoeven 2017-10-04 14:16:16 +02:00 committed by Linus Walleij
parent d327a224ba
commit f9f2a6fe13
1 changed files with 2 additions and 6 deletions
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8
drivers/gpio/gpio-rcar.c
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@ -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;