[PATCH 2/2] gpu: ipu-v3: csi: support RGB565 on parallel bus

[Jan Luebbe <jlu@xxxxxxxxxxxxxx>]

The CSI_SENS_CONF_DATA_FMT_RGB565 configuration only works for MIPI
CSI-2 sources. On the parallel bus, we need to use bayer (generic) mode
instead. To handle this difference, we pass the mbus_type to
mbus_code_to_bus_cfg().

Signed-off-by: Jan Luebbe <jlu@xxxxxxxxxxxxxx>
---
 drivers/gpu/ipu-v3/ipu-csi.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
index 39c3aabb6d17..28a6b6243baa 100644
--- a/drivers/gpu/ipu-v3/ipu-csi.c
+++ b/drivers/gpu/ipu-v3/ipu-csi.c
@@ -224,14 +224,18 @@ static int ipu_csi_set_testgen_mclk(struct ipu_csi *csi, u32 pixel_clk,
  * Find the CSI data format and data width for the given V4L2 media
  * bus pixel format code.
  */
-static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code)
+static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code,
+				enum v4l2_mbus_type mbus_type)
 {
 	switch (mbus_code) {
 	case MEDIA_BUS_FMT_BGR565_2X8_BE:
 	case MEDIA_BUS_FMT_BGR565_2X8_LE:
 	case MEDIA_BUS_FMT_RGB565_2X8_BE:
 	case MEDIA_BUS_FMT_RGB565_2X8_LE:
-		cfg->data_fmt = CSI_SENS_CONF_DATA_FMT_RGB565;
+		if (mbus_type == V4L2_MBUS_CSI2)
+			cfg->data_fmt = CSI_SENS_CONF_DATA_FMT_RGB565;
+		else
+			cfg->data_fmt = CSI_SENS_CONF_DATA_FMT_BAYER;
 		cfg->mipi_dt = MIPI_DT_RGB565;
 		cfg->data_width = IPU_CSI_DATA_WIDTH_8;
 		break;
@@ -326,7 +330,7 @@ static int fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg,
 
 	memset(csicfg, 0, sizeof(*csicfg));
 
-	rc = mbus_code_to_bus_cfg(csicfg, mbus_fmt->code);
+	rc = mbus_code_to_bus_cfg(csicfg, mbus_fmt->code, mbus_cfg->type);
 	if (rc < 0)
 		return rc;
 
@@ -600,7 +604,7 @@ int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
 	if (vc > 3)
 		return -EINVAL;
 
-	rc = mbus_code_to_bus_cfg(&cfg, mbus_fmt->code);
+	rc = mbus_code_to_bus_cfg(&cfg, mbus_fmt->code, V4L2_MBUS_CSI2);
 	if (rc < 0)
 		return rc;
 
-- 
2.17.0

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