[media] ov2640: convert from soc-camera to a standard subdev sensor driver

Convert ov2640 to a standard subdev driver. The soc-camera driver no longer
uses this driver, so it can safely be converted.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index cee1dae..db2c63f 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -520,6 +520,17 @@
 config VIDEO_SMIAPP_PLL
 	tristate
 
+config VIDEO_OV2640
+	tristate "OmniVision OV2640 sensor support"
+	depends on VIDEO_V4L2 && I2C && GPIOLIB
+	depends on MEDIA_CAMERA_SUPPORT
+	help
+	  This is a Video4Linux2 sensor-level driver for the OmniVision
+	  OV2640 camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ov2640.
+
 config VIDEO_OV2659
 	tristate "OmniVision OV2659 sensor support"
 	depends on VIDEO_V4L2 && I2C