media: camss: Add support for 10-bit grayscale formats

Add support for 10-bit packed V4L2_PIX_FMT_Y10P (on 8x16 and 8x96)
and unpacked V4L2_PIX_FMT_Y10 (on 8x96 only) pixel formats.
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/qcom/camss/camss-csid.c

@@ -193,7 +193,14 @@ static const struct csid_format csid_formats_8x16[] = {
 		DECODE_FORMAT_UNCOMPRESSED_12_BIT,
 		12,
 		1,
-	}
+	},
+	{
+		MEDIA_BUS_FMT_Y10_1X10,
+		DATA_TYPE_RAW_10BIT,
+		DECODE_FORMAT_UNCOMPRESSED_10_BIT,
+		10,
+		1,
+	},
 };
 
 static const struct csid_format csid_formats_8x96[] = {
@@ -336,7 +343,14 @@ static const struct csid_format csid_formats_8x96[] = {
 		DECODE_FORMAT_UNCOMPRESSED_14_BIT,
 		14,
 		1,
-	}
+	},
+	{
+		MEDIA_BUS_FMT_Y10_1X10,
+		DATA_TYPE_RAW_10BIT,
+		DECODE_FORMAT_UNCOMPRESSED_10_BIT,
+		10,
+		1,
+	},
 };
 
 static u32 csid_find_code(u32 *code, unsigned int n_code,
@@ -379,6 +393,16 @@ static u32 csid_src_pad_code(struct csid_device *csid, u32 sink_code,
 			return csid_find_code(src_code, ARRAY_SIZE(src_code),
 					      index, src_req_code);
 		}
+		case MEDIA_BUS_FMT_Y10_1X10:
+		{
+			u32 src_code[] = {
+				MEDIA_BUS_FMT_Y10_1X10,
+				MEDIA_BUS_FMT_Y10_2X8_PADHI_LE,
+			};
+
+			return csid_find_code(src_code, ARRAY_SIZE(src_code),
+					      index, src_req_code);
+		}
 		default:
 			if (index > 0)
 				return 0;
@@ -689,15 +713,21 @@ static int csid_set_stream(struct v4l2_subdev *sd, int enable)
 		val |= CAMSS_CSID_CID_n_CFG_RDI_EN;
 		val |= df << CAMSS_CSID_CID_n_CFG_DECODE_FORMAT_SHIFT;
 		val |= CAMSS_CSID_CID_n_CFG_RDI_MODE_RAW_DUMP;
-		if (csid->camss->version == CAMSS_8x96 &&
-			csid->fmt[MSM_CSID_PAD_SINK].code ==
-					MEDIA_BUS_FMT_SBGGR10_1X10 &&
-			csid->fmt[MSM_CSID_PAD_SRC].code ==
-					MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
+
+		if (csid->camss->version == CAMSS_8x96) {
+			u32 sink_code = csid->fmt[MSM_CSID_PAD_SINK].code;
+			u32 src_code = csid->fmt[MSM_CSID_PAD_SRC].code;
+
+			if ((sink_code == MEDIA_BUS_FMT_SBGGR10_1X10 &&
+			     src_code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) ||
+			    (sink_code == MEDIA_BUS_FMT_Y10_1X10 &&
+			     src_code == MEDIA_BUS_FMT_Y10_2X8_PADHI_LE)) {
 				val |= CAMSS_CSID_CID_n_CFG_RDI_MODE_PLAIN_PACKING;
 				val |= CAMSS_CSID_CID_n_CFG_PLAIN_FORMAT_16;
 				val |= CAMSS_CSID_CID_n_CFG_PLAIN_ALIGNMENT_LSB;
 			}
+		}
+
 		writel_relaxed(val, csid->base +
 			       CAMSS_CSID_CID_n_CFG(ver, cid));
 

drivers/media/platform/qcom/camss/camss-csiphy.c

@@ -45,6 +45,7 @@ static const struct csiphy_format csiphy_formats_8x16[] = {
 	{ MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
 	{ MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
 	{ MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
+	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
 };
 
 static const struct csiphy_format csiphy_formats_8x96[] = {
@@ -68,6 +69,7 @@ static const struct csiphy_format csiphy_formats_8x96[] = {
 	{ MEDIA_BUS_FMT_SGBRG14_1X14, 14 },
 	{ MEDIA_BUS_FMT_SGRBG14_1X14, 14 },
 	{ MEDIA_BUS_FMT_SRGGB14_1X14, 14 },
+	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
 };
 
 /*

drivers/media/platform/qcom/camss/camss-ispif.c

@@ -120,6 +120,7 @@ static const u32 ispif_formats_8x16[] = {
 	MEDIA_BUS_FMT_SGBRG12_1X12,
 	MEDIA_BUS_FMT_SGRBG12_1X12,
 	MEDIA_BUS_FMT_SRGGB12_1X12,
+	MEDIA_BUS_FMT_Y10_1X10,
 };
 
 static const u32 ispif_formats_8x96[] = {
@@ -144,6 +145,8 @@ static const u32 ispif_formats_8x96[] = {
 	MEDIA_BUS_FMT_SGBRG14_1X14,
 	MEDIA_BUS_FMT_SGRBG14_1X14,
 	MEDIA_BUS_FMT_SRGGB14_1X14,
+	MEDIA_BUS_FMT_Y10_1X10,
+	MEDIA_BUS_FMT_Y10_2X8_PADHI_LE,
 };
 
 /*
@@ -692,7 +695,8 @@ static void ispif_config_pack(struct ispif_device *ispif, u32 code,
 {
 	u32 addr, val;
 
-	if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE)
+	if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE &&
+	    code != MEDIA_BUS_FMT_Y10_2X8_PADHI_LE)
 		return;
 
 	switch (intf) {

drivers/media/platform/qcom/camss/camss-vfe.c

@@ -67,6 +67,7 @@ static const struct vfe_format formats_rdi_8x16[] = {
 	{ MEDIA_BUS_FMT_SGBRG12_1X12, 12 },
 	{ MEDIA_BUS_FMT_SGRBG12_1X12, 12 },
 	{ MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
+	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
 };
 
 static const struct vfe_format formats_pix_8x16[] = {
@@ -98,6 +99,8 @@ static const struct vfe_format formats_rdi_8x96[] = {
 	{ MEDIA_BUS_FMT_SGBRG14_1X14, 14 },
 	{ MEDIA_BUS_FMT_SGRBG14_1X14, 14 },
 	{ MEDIA_BUS_FMT_SRGGB14_1X14, 14 },
+	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
+	{ MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16 },
 };
 
 static const struct vfe_format formats_pix_8x96[] = {

drivers/media/platform/qcom/camss/camss-video.c

@@ -74,6 +74,8 @@ static const struct camss_format_info formats_rdi_8x16[] = {
 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
 	{ MEDIA_BUS_FMT_SRGGB12_1X12, V4L2_PIX_FMT_SRGGB12P, 1,
 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
+	{ MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
+	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
 };
 
 static const struct camss_format_info formats_rdi_8x96[] = {
@@ -119,6 +121,10 @@ static const struct camss_format_info formats_rdi_8x96[] = {
 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
 	{ MEDIA_BUS_FMT_SRGGB14_1X14, V4L2_PIX_FMT_SRGGB14P, 1,
 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
+	{ MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
+	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
+	{ MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, V4L2_PIX_FMT_Y10, 1,
+	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
 };
 
 static const struct camss_format_info formats_pix_8x16[] = {