media: Define MIPI CSI-2 data types in a shared header file

There are many CSI-2-related drivers in the media subsystem that come
with their own macros to handle the CSI-2 data types (or just hardcode
the numerical values). Provide a shared header with definitions for
those data types that driver can use.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

include/media/mipi-csi2.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * MIPI CSI-2 Data Types
+ *
+ * Copyright (C) 2022 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ */
+
+#ifndef _MEDIA_MIPI_CSI2_H
+#define _MEDIA_MIPI_CSI2_H
+
+/* Short packet data types */
+#define MIPI_CSI2_DT_FS			0x00
+#define MIPI_CSI2_DT_FE			0x01
+#define MIPI_CSI2_DT_LS			0x02
+#define MIPI_CSI2_DT_LE			0x03
+#define MIPI_CSI2_DT_GENERIC_SHORT(n)	(0x08 + (n))	/* 0..7 */
+
+/* Long packet data types */
+#define MIPI_CSI2_DT_NULL		0x10
+#define MIPI_CSI2_DT_BLANKING		0x11
+#define MIPI_CSI2_DT_EMBEDDED_8B	0x12
+#define MIPI_CSI2_DT_YUV420_8B		0x18
+#define MIPI_CSI2_DT_YUV420_10B		0x19
+#define MIPI_CSI2_DT_YUV420_8B_LEGACY	0x1a
+#define MIPI_CSI2_DT_YUV420_8B_CS	0x1c
+#define MIPI_CSI2_DT_YUV420_10B_CS	0x1d
+#define MIPI_CSI2_DT_YUV422_8B		0x1e
+#define MIPI_CSI2_DT_YUV422_10B		0x1f
+#define MIPI_CSI2_DT_RGB444		0x20
+#define MIPI_CSI2_DT_RGB555		0x21
+#define MIPI_CSI2_DT_RGB565		0x22
+#define MIPI_CSI2_DT_RGB666		0x23
+#define MIPI_CSI2_DT_RGB888		0x24
+#define MIPI_CSI2_DT_RAW24		0x27
+#define MIPI_CSI2_DT_RAW6		0x28
+#define MIPI_CSI2_DT_RAW7		0x29
+#define MIPI_CSI2_DT_RAW8		0x2a
+#define MIPI_CSI2_DT_RAW10		0x2b
+#define MIPI_CSI2_DT_RAW12		0x2c
+#define MIPI_CSI2_DT_RAW14		0x2d
+#define MIPI_CSI2_DT_RAW16		0x2e
+#define MIPI_CSI2_DT_RAW20		0x2f
+#define MIPI_CSI2_DT_USER_DEFINED(n)	(0x30 + (n))	/* 0..7 */
+
+#endif /* _MEDIA_MIPI_CSI2_H */