media: hi847: Add support for Hi-847 sensor

Add a V4L2 sub-device driver for Hynix Hi-847 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
- vflip/hflip control support
  - keep SGRBG10 Bayer order output
- support following resolutions:
  + 3264x2448 at 30FPS
  + 1632x1224 at 60FPS

[Sakari Ailus: Wrapped a few long lines.]
Signed-off-by: Shawn Tu <shawnx.tu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

MAINTAINERS

@@ -8896,6 +8896,12 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/i2c/hi846.c
 
+HYNIX HI847 SENSOR DRIVER
+M:	Shawn Tu <shawnx.tu@intel.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	drivers/media/i2c/hi847.c
+
 Hyper-V/Azure CORE AND DRIVERS
 M:	"K. Y. Srinivasan" <kys@microsoft.com>
 M:	Haiyang Zhang <haiyangz@microsoft.com>

drivers/media/i2c/Kconfig

@@ -759,6 +759,19 @@ config VIDEO_HI846
 	  To compile this driver as a module, choose M here: the
 	  module will be called hi846.
 
+config VIDEO_HI847
+        tristate "Hynix Hi-847 sensor support"
+        depends on I2C && VIDEO_V4L2
+        select MEDIA_CONTROLLER
+        select VIDEO_V4L2_SUBDEV_API
+        select V4L2_FWNODE
+        help
+          This is a Video4Linux2 sensor driver for the Hynix
+          Hi-847 camera.
+
+          To compile this driver as a module, choose M here: the
+          module will be called hi847.
+
 config VIDEO_IMX208
 	tristate "Sony IMX208 sensor support"
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API

drivers/media/i2c/Makefile

@@ -120,6 +120,7 @@ obj-$(CONFIG_VIDEO_OV2659)	+= ov2659.o
 obj-$(CONFIG_VIDEO_TC358743)	+= tc358743.o
 obj-$(CONFIG_VIDEO_HI556)	+= hi556.o
 obj-$(CONFIG_VIDEO_HI846)	+= hi846.o
+obj-$(CONFIG_VIDEO_HI847)	+= hi847.o
 obj-$(CONFIG_VIDEO_IMX208)	+= imx208.o
 obj-$(CONFIG_VIDEO_IMX214)	+= imx214.o
 obj-$(CONFIG_VIDEO_IMX219)	+= imx219.o