[PATCH v3 05/10] drm/bridge: tc358775: make standby GPIO optional

[Tony Lindgren]

From: Michael Walle <mwa...@kernel.org>

The stby pin is optional. It is only needed for power-up and down
sequencing. It is not needed, if the power rails cannot by dynamically
enabled.

Because the GPIO is now optional, remove the error message.

Signed-off-by: Michael Walle <mwa...@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Signed-off-by: Tony Lindgren <t...@atomide.com>
---
 drivers/gpu/drm/bridge/tc358775.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358775.c 
b/drivers/gpu/drm/bridge/tc358775.c
--- a/drivers/gpu/drm/bridge/tc358775.c
+++ b/drivers/gpu/drm/bridge/tc358775.c
@@ -669,12 +669,9 @@ static int tc_probe(struct i2c_client *client)
                return ret;
        }
 
-       tc->stby_gpio = devm_gpiod_get(dev, "stby", GPIOD_OUT_HIGH);
-       if (IS_ERR(tc->stby_gpio)) {
-               ret = PTR_ERR(tc->stby_gpio);
-               dev_err(dev, "cannot get stby-gpio %d\n", ret);
-               return ret;
-       }
+       tc->stby_gpio = devm_gpiod_get_optional(dev, "stby", GPIOD_OUT_HIGH);
+       if (IS_ERR(tc->stby_gpio))
+               return PTR_ERR(tc->stby_gpio);
 
        tc->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
        if (IS_ERR(tc->reset_gpio)) {
-- 
2.43.0