pinctrl: renesas: Singular/plural grammar fixes

Fix a few singular vs. plural grammar issues in comments.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-3-geert+renesas@glider.be

drivers/pinctrl/renesas/gpio.c

@@ -328,7 +328,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
 	if (pfc->info->data_regs == NULL)
 		return 0;
 
-	/* Find the memory window that contain the GPIO registers. Boards that
+	/* Find the memory window that contains the GPIO registers. Boards that
 	 * register a separate GPIO device will not supply a memory resource
 	 * that covers the data registers. In that case don't try to handle
 	 * GPIOs.

drivers/pinctrl/renesas/pinctrl.c

@@ -399,7 +399,7 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev,
 	spin_lock_irqsave(&pfc->lock, flags);
 
 	if (!pfc->gpio) {
-		/* If GPIOs are handled externally the pin mux type need to be
+		/* If GPIOs are handled externally the pin mux type needs to be
 		 * set to GPIO here.
 		 */
 		const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
@@ -450,8 +450,8 @@ static int sh_pfc_gpio_set_direction(struct pinctrl_dev *pctldev,
 	unsigned int dir;
 	int ret;
 
-	/* Check if the requested direction is supported by the pin. Not all SoC
-	 * provide pin config data, so perform the check conditionally.
+	/* Check if the requested direction is supported by the pin. Not all
+	 * SoCs provide pin config data, so perform the check conditionally.
 	 */
 	if (pin->configs) {
 		dir = input ? SH_PFC_PIN_CFG_INPUT : SH_PFC_PIN_CFG_OUTPUT;