[Patch v2 18/35] media: ti-vpe: vpe: Add RGB565 and RGB5551 support

[Benoit Parrot <bparrot@ti.com>]

From: Nikhil Devshatwar <nikhil.nd@ti.com>

VPE hardware can generate output in RGB565 or in RGB5551 format.
Add these formats in the supported format list for CAPTURE stream.
Also, for RGB5551 format, the alpha component is not processed,
so the alpha value is taken from the default color.
Set the default color to make alpha component full when the dst
format is of RGB color space.

Signed-off-by: Nikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 drivers/media/platform/ti-vpe/vpe.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 0f652a049ede..d3412accf564 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -302,6 +302,22 @@ static struct vpe_fmt vpe_formats[] = {
 		.vpdma_fmt	= { &vpdma_rgb_fmts[VPDMA_DATA_FMT_ABGR32],
 				  },
 	},
+	{
+		.name		= "RGB565",
+		.fourcc		= V4L2_PIX_FMT_RGB565,
+		.types		= VPE_FMT_TYPE_CAPTURE,
+		.coplanar	= 0,
+		.vpdma_fmt	= { &vpdma_rgb_fmts[VPDMA_DATA_FMT_RGB565],
+				  },
+	},
+	{
+		.name		= "RGB5551",
+		.fourcc		= V4L2_PIX_FMT_RGB555,
+		.types		= VPE_FMT_TYPE_CAPTURE,
+		.coplanar	= 0,
+		.vpdma_fmt	= { &vpdma_rgb_fmts[VPDMA_DATA_FMT_RGBA16_5551],
+				  },
+	},
 };
 
 /*
@@ -738,9 +754,11 @@ static void set_dst_registers(struct vpe_ctx *ctx)
 	struct vpe_fmt *fmt = ctx->q_data[Q_DATA_DST].fmt;
 	u32 val = 0;
 
-	if (clrspc == V4L2_COLORSPACE_SRGB)
+	if (clrspc == V4L2_COLORSPACE_SRGB) {
 		val |= VPE_RGB_OUT_SELECT;
-	else if (fmt->fourcc == V4L2_PIX_FMT_NV16)
+		vpdma_set_bg_color(ctx->dev->vpdma,
+			(struct vpdma_data_format *)fmt->vpdma_fmt[0], 0xff);
+	} else if (fmt->fourcc == V4L2_PIX_FMT_NV16)
 		val |= VPE_COLOR_SEPARATE_422;
 
 	/*
-- 
2.9.0