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| author | David Francis <David.Francis@amd.com> | 2019-08-16 20:43:46 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-10 02:07:47 +0300 |
| commit | b6adc57cff616da18ff8cff028d2ddf585c97334 (patch) | |
| tree | 84b536f154c07b8650964baba6025e6f20a15fe4 /drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | |
| parent | 5b03f9d86880711441c5681244d352212460a595 (diff) | |
| download | linux-b6adc57cff616da18ff8cff028d2ddf585c97334.tar.xz | |
drm/amd/display: Initialize DSC PPS variables to 0
For DSC MST, sometimes monitors would break out
in full-screen static. The issue traced back to the
PPS generation code, where these variables were being used
uninitialized and were picking up garbage.
memset to 0 to avoid this
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index d1df0541e10a..ddb855045767 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -525,6 +525,9 @@ bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable) struct dsc_config dsc_cfg; uint8_t dsc_packed_pps[128]; + memset(&dsc_cfg, 0, sizeof(dsc_cfg)); + memset(dsc_packed_pps, 0, 128); + /* Enable DSC hw block */ dsc_cfg.pic_width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right; dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom; |