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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2015-01-09 13:03:13 +0300 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2017-03-15 17:42:31 +0300 |
| commit | e72db3b1e50febff493bc5e3fb57da9cb8cc3d91 (patch) | |
| tree | 3ad57c2c2fe02185979ab99f6584c32b06c2431d /drivers/gpu/ipu-v3/ipu-common.c | |
| parent | ba2b5277dc52cc96944d9765281bdf1e12681f66 (diff) | |
| download | linux-e72db3b1e50febff493bc5e3fb57da9cb8cc3d91.tar.xz | |
gpu: ipu-v3: add support for separate alpha channels
The IPUv3 can read 8-bit alpha values from a separate IDMAC channel driven
by the Alpha Transparency Controller (ATC) for the graphics IDMAC channels.
This allows to reduce memory bandwidth via a conditional read mechanism or
to support planar YUV formats with alpha transparency.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-common.c')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-common.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c index 8a32ed25a1c2..448043c051e9 100644 --- a/drivers/gpu/ipu-v3/ipu-common.c +++ b/drivers/gpu/ipu-v3/ipu-common.c @@ -83,6 +83,12 @@ enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc) case DRM_FORMAT_ABGR8888: case DRM_FORMAT_RGBA8888: case DRM_FORMAT_BGRA8888: + case DRM_FORMAT_RGB565_A8: + case DRM_FORMAT_BGR565_A8: + case DRM_FORMAT_RGB888_A8: + case DRM_FORMAT_BGR888_A8: + case DRM_FORMAT_RGBX8888_A8: + case DRM_FORMAT_BGRX8888_A8: return IPUV3_COLORSPACE_RGB; case DRM_FORMAT_YUYV: case DRM_FORMAT_UYVY: |