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drm/sun4i: backend: Add a helper and a list for supported formats

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In order to check whether the backend supports a specific format, an
explicit list and a related helper are introduced.

The prototype of this helper is added to the header so that it can be
called from sun4i_layer later (when introducing tiled mode support).

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-5-paul.kocialkowski@bootlin.com
This commit is contained in:
Paul Kocialkowski 2018-11-23 10:24:36 +01:00 committed by Maxime Ripard
parent ad25d0736d
commit 3d4265f89d
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2 changed files with 28 additions and 0 deletions
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27
drivers/gpu/drm/sun4i/sun4i_backend.c
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@ -155,6 +155,33 @@ static int sun4i_backend_drm_format_to_layer(u32 format, u32 *mode)
return 0; return 0;
} }
static const uint32_t sun4i_backend_formats[] = {
DRM_FORMAT_ARGB1555,
DRM_FORMAT_ARGB4444,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_BGRX8888,
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB888,
DRM_FORMAT_RGBA4444,
DRM_FORMAT_RGBA5551,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
};
bool sun4i_backend_format_is_supported(uint32_t fmt)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(sun4i_backend_formats); i++)
if (sun4i_backend_formats[i] == fmt)
return true;
return false;
}
int sun4i_backend_update_layer_coord(struct sun4i_backend *backend, int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
int layer, struct drm_plane *plane) int layer, struct drm_plane *plane)
{ {

1
drivers/gpu/drm/sun4i/sun4i_backend.h
View File

@ -198,6 +198,7 @@ engine_to_sun4i_backend(struct sunxi_engine *engine)
void sun4i_backend_layer_enable(struct sun4i_backend *backend, void sun4i_backend_layer_enable(struct sun4i_backend *backend,
int layer, bool enable); int layer, bool enable);
bool sun4i_backend_format_is_supported(uint32_t fmt);
int sun4i_backend_update_layer_coord(struct sun4i_backend *backend, int sun4i_backend_update_layer_coord(struct sun4i_backend *backend,
int layer, struct drm_plane *plane); int layer, struct drm_plane *plane);
int sun4i_backend_update_layer_formats(struct sun4i_backend *backend, int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,