diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-02 12:29:26 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-03 14:27:39 +0100 |
| commit | 29fca6d56d76363368d012e18b5631340cfcd69c (patch) | |
| tree | f5490dfb6df45c62d313b9784a5d343797089b58 /include/drm | |
| parent | 37c90d589dc06c1ae19b5eb4ed79e7a70ccc21bf (diff) | |
drm/format-helper: Simplify drm_fb_build_fourcc_list()
The DRM helper drm_fb_build_fourcc_list() creates a list of color
formats for primary planes of the generic drivers. Simplify the helper:
- It used to mix and filter native and emulated formats as provided
by the driver. Now the only emulated format is XRGB8888, which is
required as fallback by legacy software. Drop support for emulating
any other formats.
- Also convert alpha formats to their non-alpha counterparts. Generic
drivers don't support primary planes with alpha formats and some
DTs incorrectly advertise alpha channels for non-alpha hardware. So
only export non-alpha formats for primary planes.
With the simplified helper, scrap format lists of the affected generic
drivers. All they need is the firmware buffer's native format, from which
the helper creates the list of color formats.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-13-tzimmermann@suse.de
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_format_helper.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 2d04f5863722..291deb09475b 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -65,7 +65,6 @@ void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitc size_t drm_fb_build_fourcc_list(struct drm_device *dev, const u32 *native_fourccs, size_t native_nfourccs, - const u32 *extra_fourccs, size_t extra_nfourccs, u32 *fourccs_out, size_t nfourccs_out); #endif /* __LINUX_DRM_FORMAT_HELPER_H */ |