media: i2c: Add ov08x40 image sensor driver

Add a V4L2 sub-device driver for Omnivision ov08X40 image sensor.
This is a camera sensor using the I2C bus for control and the
CSI-2 bus for data.

This driver supports following features:
- manual exposure and analog/digital gain control support
- vblank/hblank control support
- test pattern support
- media controller support
- runtime PM support
- support following resolutions:
  + 3856x2464 at 30FPS
  + 1928x1208 at 30FPS
Signed-off-by: Jason Chen <jason.z.chen@intel.com>
Signed-off-by: Shawn Tu <shawnx.tu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

MAINTAINERS

@@ -15176,6 +15176,13 @@ S:	Maintained
 T:	git git://linuxtv.org/media_tree.git
 F:	drivers/media/i2c/ov08d10.c
 
+OMNIVISION OV08X40 SENSOR DRIVER
+M:	Jason Chen <jason.z.chen@intel.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media_tree.git
+F:	drivers/media/i2c/ov08x40.c
+
 OMNIVISION OV13858 SENSOR DRIVER
 M:	Sakari Ailus <sakari.ailus@linux.intel.com>
 L:	linux-media@vger.kernel.org

drivers/media/i2c/Kconfig

@@ -364,6 +364,19 @@ config VIDEO_OV08D10
           To compile this driver as a module, choose M here: the
           module will be called ov08d10.
 
+config VIDEO_OV08X40
+	tristate "OmniVision OV08X40 sensor support"
+	depends on VIDEO_V4L2 && I2C
+	select MEDIA_CONTROLLER
+	select VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
+	help
+	  This is a Video4Linux2 sensor driver for the OmniVision
+	  OV08X40 camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ov08x40.
+
 config VIDEO_OV13858
 	tristate "OmniVision OV13858 sensor support"
 	depends on I2C && VIDEO_DEV

drivers/media/i2c/Makefile

@@ -72,6 +72,7 @@ obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o
 obj-$(CONFIG_VIDEO_OG01A1B) += og01a1b.o
 obj-$(CONFIG_VIDEO_OV02A10) += ov02a10.o
 obj-$(CONFIG_VIDEO_OV08D10) += ov08d10.o
+obj-$(CONFIG_VIDEO_OV08X40) += ov08x40.o
 obj-$(CONFIG_VIDEO_OV13858) += ov13858.o
 obj-$(CONFIG_VIDEO_OV13B10) += ov13b10.o
 obj-$(CONFIG_VIDEO_OV2640) += ov2640.o