The mixer natively support RGB565, ARGB4444 and ARGB1555
so expose these formats. Also, since being of 16-bit size,
these formats have a lower bandwidth requirement, making
them useful in situations where this is a bottleneck.
Signed-off-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_mixer.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 512f7b3..7dec7c7 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -127,6 +127,11 @@ static const u8 filter_cr_horiz_tap4[] = {
static const uint32_t mixer_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_XRGB1555,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_XRGB4444,
+ DRM_FORMAT_ARGB4444,
};
static const uint32_t vp_formats[] = {
@@ -556,30 +561,32 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
unsigned int x_ratio = 0, y_ratio = 0;
unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
dma_addr_t dma_addr;
- unsigned int fmt, blend;
+ unsigned int fmt, blend = 0;
u32 val;
plane = &ctx->planes[win];
switch (plane->pixel_format) {
case DRM_FORMAT_ARGB4444:
- fmt = MIXER_PIXELFORMAT_ARGB4444;
blend = 1;
+ case DRM_FORMAT_XRGB4444:
+ fmt = MIXER_PIXELFORMAT_ARGB4444;
break;
case DRM_FORMAT_ARGB8888:
- fmt = MIXER_PIXELFORMAT_ARGB8888;
blend = 1;
- break;
-
case DRM_FORMAT_XRGB8888:
fmt = MIXER_PIXELFORMAT_ARGB8888;
- blend = 0;
+ break;
+
+ case DRM_FORMAT_ARGB1555:
+ blend = 1;
+ case DRM_FORMAT_XRGB1555:
+ fmt = MIXER_PIXELFORMAT_ARGB1555;
break;
case DRM_FORMAT_RGB565:
fmt = MIXER_PIXELFORMAT_RGB565;
- blend = 0;
break;
default:
--
2.0.5
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