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| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-05-16 13:31:47 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-05-20 14:32:57 +0300 |
| commit | 05c452c115bffa12f78346723f0282a4264ed200 (patch) | |
| tree | fa4f69082136940db1c9926107ec3e76d1575fb3 /include/drm/drm_fourcc.h | |
| parent | 45babef01f92f1c3ab3012dfb7e98ae51f1ebeab (diff) | |
| download | linux-05c452c115bffa12f78346723f0282a4264ed200.tar.xz | |
drm: Remove users of drm_format_num_planes
drm_format_num_planes() is basically a lookup in the drm_format_info table
plus an access to the num_planes field of the appropriate entry.
Most drivers are using this function while having access to the entry
already, which means that we will perform an unnecessary lookup. Removing
the call to drm_format_num_planes is therefore more efficient.
Some drivers will not have access to that entry in the function, but in
this case the overhead is minimal (we just have to call drm_format_info()
to perform the lookup) and we can even avoid multiple, inefficient lookups
in some places that need multiple fields from the drm_format_info
structure.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5ffcec9d14a50ed538e37d565f546802452ee672.1558002671.git-series.maxime.ripard@bootlin.com
Diffstat (limited to 'include/drm/drm_fourcc.h')
| -rw-r--r-- | include/drm/drm_fourcc.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h index b3d9d88ab290..41779b327d91 100644 --- a/include/drm/drm_fourcc.h +++ b/include/drm/drm_fourcc.h @@ -268,7 +268,6 @@ drm_get_format_info(struct drm_device *dev, uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); uint32_t drm_driver_legacy_fb_format(struct drm_device *dev, uint32_t bpp, uint32_t depth); -int drm_format_num_planes(uint32_t format); int drm_format_plane_cpp(uint32_t format, int plane); int drm_format_horz_chroma_subsampling(uint32_t format); int drm_format_vert_chroma_subsampling(uint32_t format); |