5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sakari Ailus sakari.ailus@linux.intel.com
commit 3d391292cdd53984ec1b9a1f6182a62a62751e03 upstream.
Lift the xshutdown (enable) GPIO 1 ms after enabling the regulators, as required by the sensor's power-up sequence.
Fixes: d30bb512da3d ("media: Add a driver for the ov7251 camera sensor") Cc: stable@vger.kernel.org Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Reviewed-by: Dave Stevenson dave.stevenson@raspberrypi.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/i2c/ov7251.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/media/i2c/ov7251.c +++ b/drivers/media/i2c/ov7251.c @@ -748,6 +748,8 @@ static int ov7251_set_power_on(struct ov return ret; }
+ usleep_range(1000, 1100); + gpiod_set_value_cansleep(ov7251->enable_gpio, 1);
/* wait at least 65536 external clock cycles */