sh-pfc: Configure pins as GPIOs at request time when handled externally
When a GPIO is handled by a separate driver the pinmux
gpio_set_direction() handler won't be called. The pin mux type then need
to be configured to GPIO at request time.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c
index aef268b..3492ec9 100644
--- a/drivers/pinctrl/sh-pfc/pinctrl.c
+++ b/drivers/pinctrl/sh-pfc/pinctrl.c
@@ -182,6 +182,17 @@
goto done;
}
+ if (!pfc->gpio) {
+ /* If GPIOs are handled externally the pin mux type need to be
+ * set to GPIO here.
+ */
+ const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
+
+ ret = sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
+ if (ret < 0)
+ goto done;
+ }
+
cfg->type = PINMUX_TYPE_GPIO;
ret = 0;