sh-pfc: Make GPIO support optional
When implemented as a separate IP block, GPIOs should be handled by a
separate driver. To make this possible GPIO support needs to be optional
in the sh-pfc driver.
If no GPIO data registers are supplied in the SoC information structure
skip registration of the gpiochip.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index 7a54ec7..317cebb 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -354,6 +354,9 @@
unsigned int i;
int ret;
+ if (pfc->info->data_regs == NULL)
+ return 0;
+
/* Register the real GPIOs chip. */
chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup);
if (IS_ERR(chip))