[PATCH 5.10 258/717] media: rdacm20: Enable GPIO1 explicitly

[Greg Kroah-Hartman]

From: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>

[ Upstream commit 7fe1d4453fb6bf103d668a19d957a7b2fc21887c ]

The MAX9271 GPIO1 line that controls the sensor reset is by default
enabled after a serializer chip reset.

As rdacm20 does not go through an explicit serializer reset, make sure
GPIO1 is enabled to make the camera module driver more robust.

Fixes: 34009bffc1c6 ("media: i2c: Add RDACM20 driver")
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/i2c/rdacm20.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c
index 1ed928c4ca70f..16bcb764b0e0d 100644
--- a/drivers/media/i2c/rdacm20.c
+++ b/drivers/media/i2c/rdacm20.c
@@ -487,9 +487,18 @@ static int rdacm20_initialize(struct rdacm20_device *dev)
 	 * Reset the sensor by cycling the OV10635 reset signal connected to the
 	 * MAX9271 GPIO1 and verify communication with the OV10635.
 	 */
-	max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	if (ret)
+		return ret;
+
+	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	if (ret)
+		return ret;
 	usleep_range(10000, 15000);
-	max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);
+
+	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	if (ret)
+		return ret;
 	usleep_range(10000, 15000);
 
 again:
-- 
2.27.0