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bfebd42d56
It's very confusing for userspace to have to deal with inconsistencies here, and some drivers screwed this up a bit. Most just ommitted the format list when they meant to say that only linear modifier is allowed, but some also meant that only implied modifiers are acceptable (because actually none of the planes registered supported modifiers). Now that this is all done consistently across all drivers, document the rules and enforce it in the drm core. v2: - Make the capability a link (Simon) - Note that all is lost before 5.1. v3: - Use drm_WARN_ON (Lyude) Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Cc: Simon Ser <contact@emersion.fr> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Cc: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210506132343.2873699-1-daniel.vetter@ffwll.ch |
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