[PATCH] i2c: at91: Restore pinctrl state if can't get scl/sda gpios

[Codrin Ciubotariu]

If there is a strict pinmux or if simply the scl/sda gpios are missing,
the pins will remain in gpio mode, compromizing the I2C bus.
Change to the default state of the pins before returning the error.

Fixes: a53acc7ebf27 ("i2c: at91: Fix pinmux after devm_gpiod_get() for bus 
recovery")
Signed-off-by: Codrin Ciubotariu <codrin.ciubota...@microchip.com>
---
 drivers/i2c/busses/i2c-at91-master.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-at91-master.c 
b/drivers/i2c/busses/i2c-at91-master.c
index d4a3aef4a594..363d540a8345 100644
--- a/drivers/i2c/busses/i2c-at91-master.c
+++ b/drivers/i2c/busses/i2c-at91-master.c
@@ -877,6 +877,7 @@ static int at91_init_twi_recovery_gpio(struct 
platform_device *pdev,
                        gpiod_put(rinfo->scl_gpiod);
                        rinfo->scl_gpiod = NULL;
                }
+               pinctrl_select_state(dev->pinctrl, dev->pinctrl_pins_default);
                return -EINVAL;
        }
 
-- 
2.25.1