gpio: pca953x: log an error when failing to get the reset GPIO

BugLink: https://bugs.launchpad.net/bugs/2111953

[ Upstream commit 7cef813 ]

When the dirver fails getting this GPIO, it fails silently. Log an error
message to make debugging a lot easier by just reading dmesg.

Signed-off-by: Luca Ceresoli <[email protected]>
Fixes: 054ccde ("gpio: pca953x: Add optional reset gpio control")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Manuel Diewald <[email protected]>
Signed-off-by: Mehmet Basaran <[email protected]>

Author: lucaceresoli

drivers/gpio/gpio-pca953x.c

@@ -1088,7 +1088,8 @@ static int pca953x_probe(struct i2c_client *client)
 		 */
 		reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
 		if (IS_ERR(reset_gpio))
-			return PTR_ERR(reset_gpio);
+			return dev_err_probe(dev, PTR_ERR(reset_gpio),
+					     "Failed to get reset gpio\n");
 	}
 
 	chip->client = client;