pinctrl: renesas: fix R-Car gpio0_00 operation fails with 'gpio -input' command

Fix GPIO bank 0 pin 0 request/release off by one error. Without this
patch, it is not possible to request/release GPIO bank 0 pin 0.

Signed-off-by: Tiezhuang Dong <tiezhuang.dong.yh@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Eugeniu Rosca <roscaeugeniu@gmail.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>

diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c
index d1271da..f2973be 100644 (file)
--- a/drivers/pinctrl/renesas/pfc.c
+++ b/drivers/pinctrl/renesas/pfc.c
@@ -469,7 +469,7 @@ static int sh_pfc_gpio_request_enable(struct udevice *dev,
        const struct sh_pfc_pin *pin = NULL;
        int i, ret, idx;
 
-       for (i = 1; i < pfc->info->nr_pins; i++) {
+       for (i = 0; i < pfc->info->nr_pins; i++) {
                if (priv->pfc.info->pins[i].pin != pin_selector)
                        continue;
 
@@ -505,7 +505,7 @@ static int sh_pfc_gpio_disable_free(struct udevice *dev,
        const struct sh_pfc_pin *pin = NULL;
        int i, idx;
 
-       for (i = 1; i < pfc->info->nr_pins; i++) {
+       for (i = 0; i < pfc->info->nr_pins; i++) {
                if (priv->pfc.info->pins[i].pin != pin_selector)
                        continue;