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drm/sun4i: backend: Support YUV planes

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Now that we have the guarantee that we will have only a single YUV plane,
actually support them. The way it works is not really straightforward,
since we first need to enable the YUV mode in the plane that we want to
setup, and then we have a few registers to setup the YUV buffer and
parameters.

We also need to setup the color correction to actually have something
displayed.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/66088c1398bd3189123f28a89a7ccc669fe9f296.1519931807.git-series.maxime.ripard@bootlin.com
This commit is contained in:
Maxime Ripard
2018-03-01 20:18:46 +01:00
parent 32463556a6
commit ddc389f5a4
3 changed files with 119 additions and 0 deletions
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4
drivers/gpu/drm/sun4i/sun4i_layer.c
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@@ -134,7 +134,11 @@ static const uint32_t sun4i_backend_layer_formats[] = {
DRM_FORMAT_RGBA4444,
DRM_FORMAT_RGB888,
DRM_FORMAT_RGB565,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
};
static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm,