media: ccs: Support 16-bit sensor revision number register

Read 16-bit sensor revision number if the 8-bit register has value 0.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/i2c/ccs/ccs-core.c

@@ -2834,6 +2834,10 @@ static int ccs_identify_module(struct ccs_sensor *sensor)
 		rval = ccs_read_addr_8only(sensor,
 					   CCS_R_SENSOR_REVISION_NUMBER,
 					   &minfo->sensor_revision_number);
+	if (!rval && !minfo->sensor_revision_number)
+		rval = ccs_read_addr_8only(sensor,
+					   CCS_R_SENSOR_REVISION_NUMBER_16,
+					   &minfo->sensor_revision_number);
 	if (!rval)
 		rval = ccs_read_addr_8only(sensor,
 					   CCS_R_SENSOR_FIRMWARE_VERSION,
@@ -2876,7 +2880,7 @@ static int ccs_identify_module(struct ccs_sensor *sensor)
 			minfo->sensor_model_id);
 
 	dev_dbg(&client->dev,
-		"sensor revision 0x%2.2x firmware version 0x%2.2x\n",
+		"sensor revision 0x%4.4x firmware version 0x%2.2x\n",
 		minfo->sensor_revision_number, minfo->sensor_firmware_version);
 
 	if (minfo->ccs_version) {