pinctrl: renesas: rza1: Mark GPIOs as used

GPIOs showed up as unclaimed, so they could be muxed to something else
even though they were in use. Mark GPIOs as claimed to avoid that.

Signed-off-by: Wolfram Sang <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>

Author: Wolfram Sang

drivers/pinctrl/renesas/pinctrl-rza1.c

@@ -19,6 +19,7 @@
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
@@ -750,6 +751,11 @@ static int rza1_pin_mux_single(struct rza1_pinctrl *rza1_pctl,
 static int rza1_gpio_request(struct gpio_chip *chip, unsigned int gpio)
 {
 	struct rza1_port *port = gpiochip_get_data(chip);
+	int ret;
+
+	ret = pinctrl_gpio_request(chip, gpio);
+	if (ret)
+		return ret;
 
 	rza1_pin_reset(port, gpio);
 
@@ -771,6 +777,7 @@ static void rza1_gpio_free(struct gpio_chip *chip, unsigned int gpio)
 	struct rza1_port *port = gpiochip_get_data(chip);
 
 	rza1_pin_reset(port, gpio);
+	pinctrl_gpio_free(chip, gpio);
 }
 
 static int rza1_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)