media: ov2680: Add Omnivision OV2680 sensor driver

This patch adds V4L2 sub-device driver for OV2680 image sensor.
The OV2680 is a 1/5" CMOS color sensor from Omnivision.
Supports output format: 10-bit Raw RGB.
The OV2680 has a single lane MIPI interface.

The driver exposes following V4L2 controls:
- auto/manual exposure,
- exposure,
- auto/manual gain,
- gain,
- horizontal/vertical flip,
- test pattern menu.
Supported resolution are only: QUXGA, 720P, UXGA.

[Sakari Ailus: Drop "-level" from Kconfig help text]
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/Kconfig

@@ -637,6 +637,18 @@ config VIDEO_OV2659
 	  To compile this driver as a module, choose M here: the
 	  module will be called ov2659.
 
+config VIDEO_OV2680
+	tristate "OmniVision OV2680 sensor support"
+	depends on VIDEO_V4L2 && I2C && MEDIA_CONTROLLER
+	depends on MEDIA_CAMERA_SUPPORT
+	select V4L2_FWNODE
+	---help---
+	  This is a Video4Linux2 sensor driver for the OmniVision
+	  OV2680 camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ov2680.
+
 config VIDEO_OV2685
 	tristate "OmniVision OV2685 sensor support"
 	depends on VIDEO_V4L2 && I2C && MEDIA_CONTROLLER

drivers/media/i2c/Makefile

@@ -65,6 +65,7 @@ obj-$(CONFIG_VIDEO_SONY_BTF_MPX) += sony-btf-mpx.o
 obj-$(CONFIG_VIDEO_UPD64031A) += upd64031a.o
 obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
 obj-$(CONFIG_VIDEO_OV2640) += ov2640.o
+obj-$(CONFIG_VIDEO_OV2680) += ov2680.o
 obj-$(CONFIG_VIDEO_OV2685) += ov2685.o
 obj-$(CONFIG_VIDEO_OV5640) += ov5640.o
 obj-$(CONFIG_VIDEO_OV5645) += ov5645.o