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drm/amd/display: Fill prescale_params->scale for RGB565

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[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.kazlauskas@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Kazlauskas
2019-04-16 10:30:29 -04:00
committed by Alex Deucher
parent efa023363c
commit 1352c779cb
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
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@@ -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;