[PATCH v3 2/2] gpio: realtek-otto: add pinctrl support

[misha . zavertkin]

RTL9607C relies on pinctrl to mux SoC pins. Use pinctrl to request pins
for GPIO.
pinctrl driver for other SoCs might be implemented later.

Signed-off-by: Michael Zavertkin <misha.zavertkin@xxxxxxx>
---
 drivers/gpio/gpio-realtek-otto.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-realtek-otto.c b/drivers/gpio/gpio-realtek-otto.c
index 4a606bad5848..01be8baa25c3 100644
--- a/drivers/gpio/gpio-realtek-otto.c
+++ b/drivers/gpio/gpio-realtek-otto.c
@@ -393,13 +393,14 @@ static int realtek_gpio_probe(struct platform_device *pdev)
 
 	raw_spin_lock_init(&ctrl->lock);
 
+	gen_gc_flags = GPIO_GENERIC_PINCTRL_BACKEND;
+
 	if (dev_flags & GPIO_PORTS_REVERSED) {
-		gen_gc_flags = 0;
 		ctrl->bank_read = realtek_gpio_bank_read;
 		ctrl->bank_write = realtek_gpio_bank_write;
 		ctrl->line_imr_pos = realtek_gpio_line_imr_pos;
 	} else {
-		gen_gc_flags = GPIO_GENERIC_BIG_ENDIAN_BYTE_ORDER;
+		gen_gc_flags |= GPIO_GENERIC_BIG_ENDIAN_BYTE_ORDER;
 		ctrl->bank_read = realtek_gpio_bank_read_swapped;
 		ctrl->bank_write = realtek_gpio_bank_write_swapped;
 		ctrl->line_imr_pos = realtek_gpio_line_imr_pos_swapped;
-- 
2.54.0