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authorTomohito Esaki2022-01-28 15:08:35 +0900
committerDaniel Vetter2022-01-31 21:45:24 +0100
commit8be576837b6e62b2ad0de2f9ba31cef618fa2891 (patch)
tree8e195f2aaa00e88a455f154a96cad60df2bd984d /include/drm/drm_plane.h
parent2af104290da5e4858e8caefa068827d7392c6a09 (diff)
drm: add support modifiers for drivers whose planes only support linear layout
The LINEAR modifier is advertised as default if a driver doesn't specify modifiers. v2: - rebase to the latest master branch (5.16.0+) + "drm/plane: Make format_mod_supported truly optional" patch [1] [1] https://patchwork.freedesktop.org/patch/467940/?series=98255&rev=3 v3: - change the order as follows: 1. add fb_modifiers_not_supported flag 2. add default modifiers 3. remove allow_fb_modifiers flag v5: - change default_modifiers array from non-static to static - remove terminator in default_modifiers array - use ARRAY_SIZE to get the format_modifier_count - update sanity check in plane init func to use the fb_modifiers_not_supported - modify kernel docs Signed-off-by: Tomohito Esaki <etom@igel.co.jp> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220128060836.11216-3-etom@igel.co.jp
Diffstat (limited to 'include/drm/drm_plane.h')
-rw-r--r--include/drm/drm_plane.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 06759badf99f..2628c7cde2da 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -803,6 +803,9 @@ void *__drmm_universal_plane_alloc(struct drm_device *dev,
*
* The @drm_plane_funcs.destroy hook must be NULL.
*
+ * Drivers that only support the DRM_FORMAT_MOD_LINEAR modifier support may set
+ * @format_modifiers to NULL. The plane will advertise the linear modifier.
+ *
* Returns:
* Pointer to new plane, or ERR_PTR on failure.
*/