media: uapi: Add MEDIA_BUS_FMT_BGR888_3X8 media bus format

This patch adds MEDIA_BUS_FMT_BGR888_3X8 used by STM MIPID02 CSI-2 to
PARALLEL bridge driver when input format is MEDIA_BUS_FMT_BGR888_1X24.

Signed-off-by: Mickael Guene <mickael.guene@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

Documentation/media/uapi/v4l/subdev-formats.rst

@@ -980,6 +980,113 @@ The following tables list existing packed RGB formats.
       - r\ :sub:`2`
       - r\ :sub:`1`
       - r\ :sub:`0`
+    * .. _MEDIA-BUS-FMT-BGR888-3X8:
+
+      - MEDIA_BUS_FMT_BGR888_3X8
+      - 0x101b
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      - b\ :sub:`7`
+      - b\ :sub:`6`
+      - b\ :sub:`5`
+      - b\ :sub:`4`
+      - b\ :sub:`3`
+      - b\ :sub:`2`
+      - b\ :sub:`1`
+      - b\ :sub:`0`
+    * -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
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+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      - g\ :sub:`7`
+      - g\ :sub:`6`
+      - g\ :sub:`5`
+      - g\ :sub:`4`
+      - g\ :sub:`3`
+      - g\ :sub:`2`
+      - g\ :sub:`1`
+      - g\ :sub:`0`
+    * -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
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+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      - r\ :sub:`7`
+      - r\ :sub:`6`
+      - r\ :sub:`5`
+      - r\ :sub:`4`
+      - r\ :sub:`3`
+      - r\ :sub:`2`
+      - r\ :sub:`1`
+      - r\ :sub:`0`
     * .. _MEDIA-BUS-FMT-GBR888-1X24:
 
       - MEDIA_BUS_FMT_GBR888_1X24

include/uapi/linux/media-bus-format.h

@@ -34,7 +34,7 @@
 
 #define MEDIA_BUS_FMT_FIXED			0x0001
 
-/* RGB - next is	0x101b */
+/* RGB - next is	0x101c */
 #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
@@ -50,6 +50,7 @@
 #define MEDIA_BUS_FMT_RGB666_1X24_CPADHI	0x1015
 #define MEDIA_BUS_FMT_RGB666_1X7X3_SPWG		0x1010
 #define MEDIA_BUS_FMT_BGR888_1X24		0x1013
+#define MEDIA_BUS_FMT_BGR888_3X8		0x101b
 #define MEDIA_BUS_FMT_GBR888_1X24		0x1014
 #define MEDIA_BUS_FMT_RGB888_1X24		0x100a
 #define MEDIA_BUS_FMT_RGB888_2X12_BE		0x100b