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由 Harry Wentland 提交于
The below commit "drm/atomic: Try to preserve the crtc enabled state in drm_atomic_remove_fb, v2" introduces a slight behavioral change to rmfb. Instead of disabling a crtc when the primary plane is disabled, it now preserves it. Since DC is currently not equipped to handle this we need to fail such a commit, otherwise we might see a corrupted screen. This is based on Shirish's previous approach but avoids adding all planes to the new atomic state which leads to a full update in DC for any commit, and is not what we intend. Theoretically DM should be able to deal with states with fully populated planes, even for simple updates, such as cursor updates. This should still be addressed in the future. Signed-off-by: NHarry Wentland <harry.wentland@amd.com> Tested-by: NMichel Dänzer <michel.daenzer@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Cc: stable@vger.kernel.org Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
f2877656