[PATCH 01/17] media: v4l2-common: Add mipi_csi2_dt_for_mbus()

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Add mipi_csi2_dt_for_mbus() for obtaining the MIPI CSI-2 data type (DT)
for a given Media bus pixel code.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-common.c | 47 +++++++++++++++++++++++++++
 include/media/mipi-csi2.h             |  2 ++
 2 files changed, 49 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index bceafc4e92c8..3f40de563bbd 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -46,6 +46,7 @@
 #include <linux/uaccess.h>
 #include <asm/io.h>
 #include <asm/div64.h>
+#include <media/mipi-csi2.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
@@ -808,3 +809,49 @@ struct clk *__devm_v4l2_sensor_clk_get(struct device *dev, const char *id,
 	return clk_hw->clk;
 }
 EXPORT_SYMBOL_GPL(__devm_v4l2_sensor_clk_get);
+
+int mipi_csi2_dt_for_mbus(u32 code)
+{
+	switch (code) {
+	case MEDIA_BUS_FMT_BGR888_1X24:
+		return MIPI_CSI2_DT_RGB888;
+	case MEDIA_BUS_FMT_Y8_1X8:
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
+		return MIPI_CSI2_DT_RAW8;
+	case MEDIA_BUS_FMT_Y10_1X10:
+	case MEDIA_BUS_FMT_SBGGR10_1X10:
+	case MEDIA_BUS_FMT_SGBRG10_1X10:
+	case MEDIA_BUS_FMT_SGRBG10_1X10:
+	case MEDIA_BUS_FMT_SRGGB10_1X10:
+		return MIPI_CSI2_DT_RAW10;
+	case MEDIA_BUS_FMT_Y12_1X12:
+	case MEDIA_BUS_FMT_SBGGR12_1X12:
+	case MEDIA_BUS_FMT_SGBRG12_1X12:
+	case MEDIA_BUS_FMT_SGRBG12_1X12:
+	case MEDIA_BUS_FMT_SRGGB12_1X12:
+		return MIPI_CSI2_DT_RAW12;
+	case MEDIA_BUS_FMT_Y14_1X14:
+	case MEDIA_BUS_FMT_SBGGR14_1X14:
+	case MEDIA_BUS_FMT_SGBRG14_1X14:
+	case MEDIA_BUS_FMT_SGRBG14_1X14:
+	case MEDIA_BUS_FMT_SRGGB14_1X14:
+		return MIPI_CSI2_DT_RAW14;
+	case MEDIA_BUS_FMT_Y16_1X16:
+	case MEDIA_BUS_FMT_SBGGR16_1X16:
+	case MEDIA_BUS_FMT_SGBRG16_1X16:
+	case MEDIA_BUS_FMT_SGRBG16_1X16:
+	case MEDIA_BUS_FMT_SRGGB16_1X16:
+		return MIPI_CSI2_DT_RAW16;
+	case MEDIA_BUS_FMT_SBGGR20_1X20:
+	case MEDIA_BUS_FMT_SGBRG20_1X20:
+	case MEDIA_BUS_FMT_SGRBG20_1X20:
+	case MEDIA_BUS_FMT_SRGGB20_1X20:
+		return MIPI_CSI2_DT_RAW20;
+	default:
+		return -EINVAL;
+	}
+}
+EXPORT_SYMBOL_GPL(mipi_csi2_dt_for_mbus);
diff --git a/include/media/mipi-csi2.h b/include/media/mipi-csi2.h
index 40fc0264250d..0bea79ab66c6 100644
--- a/include/media/mipi-csi2.h
+++ b/include/media/mipi-csi2.h
@@ -44,4 +44,6 @@
 #define MIPI_CSI2_DT_RAW20		0x2f
 #define MIPI_CSI2_DT_USER_DEFINED(n)	(0x30 + (n))	/* 0..7 */
 
+int mipi_csi2_dt_for_mbus(u32 code);
+
 #endif /* _MEDIA_MIPI_CSI2_H */
-- 
2.47.3