media: i2c: gc2145: Galaxy Core GC2145 sensor support

Addition of support for the Galaxy Core GC2145 XVGA sensor.
The sensor supports both DVP and CSI-2 interfaces however for
the time being only CSI-2 is implemented.

Configurations are currently based on initialization scripts
coming from Galaxy Core and so for that purpose only 3 static
resolutions are supported:
 - 640x480
 - 1280x720
 - 1600x1200

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

MAINTAINERS

@@ -8760,6 +8760,14 @@ F:	kernel/futex/*
 F:	tools/perf/bench/futex*
 F:	tools/testing/selftests/futex/
 
+GALAXYCORE GC2145 SENSOR DRIVER
+M:	Alain Volmat <alain.volmat@foss.st.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media_tree.git
+F:	Documentation/devicetree/bindings/media/i2c/galaxycore,gc2145.yaml
+F:	drivers/media/i2c/gc2145.c
+
 GATEWORKS SYSTEM CONTROLLER (GSC) DRIVER
 M:	Tim Harvey <tharvey@gateworks.com>
 S:	Maintained

drivers/media/i2c/Kconfig

@@ -50,6 +50,16 @@ config VIDEO_AR0521
 	  To compile this driver as a module, choose M here: the
 	  module will be called ar0521.
 
+config VIDEO_GC2145
+	select V4L2_CCI_I2C
+	tristate "GalaxyCore GC2145 sensor support"
+	help
+	  This is a V4L2 sensor-level driver for GalaxyCore GC2145
+	  2 Mpixel camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gc2145.
+
 config VIDEO_HI556
 	tristate "Hynix Hi-556 sensor support"
 	help

drivers/media/i2c/Makefile

@@ -36,6 +36,7 @@ obj-$(CONFIG_VIDEO_DW9719) += dw9719.o
 obj-$(CONFIG_VIDEO_DW9768) += dw9768.o
 obj-$(CONFIG_VIDEO_DW9807_VCM) += dw9807-vcm.o
 obj-$(CONFIG_VIDEO_ET8EK8) += et8ek8/
+obj-$(CONFIG_VIDEO_GC2145) += gc2145.o
 obj-$(CONFIG_VIDEO_HI556) += hi556.o
 obj-$(CONFIG_VIDEO_HI846) += hi846.o
 obj-$(CONFIG_VIDEO_HI847) += hi847.o