From: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com> [ Upstream commit 1352c779cb74d427f4150cbe779a2f7886f70cae ]
[Why] An assertion is thrown when using SURFACE_PIXEL_FORMAT_GRPH_RGB565 formats on DCE since the prescale_params->scale wasn't being filled. Found by a dmesg-fail when running the igt@kms_plane@pixel-format-pipe-a-planes test on Baffin. [How] Fill in the scale parameter. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com> Reviewed-by: Roman Li <roman...@amd.com> Acked-by: Bhawanpreet Lakha <bhawanpreet.la...@amd.com> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 5e4db3712eef..88d37e850a12 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -242,6 +242,9 @@ static void build_prescale_params(struct ipp_prescale_params *prescale_params, prescale_params->mode = IPP_PRESCALE_MODE_FIXED_UNSIGNED; switch (plane_state->format) { + case SURFACE_PIXEL_FORMAT_GRPH_RGB565: + prescale_params->scale = 0x2082; + break; case SURFACE_PIXEL_FORMAT_GRPH_ARGB8888: case SURFACE_PIXEL_FORMAT_GRPH_ABGR8888: prescale_params->scale = 0x2020; -- 2.20.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx