github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 04:56:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amd/display: fix k1 k2 divider programming for phantom streams

Browse Source 
[Why & How]
When k1 and k2 divider programming logic is executed for a phantom
stream, the corresponding master stream should be used for the
calculation. Fix the if condition to use the master stream for checking
signal type instead of the phantom stream.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aurabindo Pillai 2023-01-30 13:07:59 -05:00 committed by Alex Deucher
parent 7cd07d9de8
commit 3b214bb718
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
View File

@ -1098,13 +1098,13 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
if (link_is_dp_128b_132b_signal(pipe_ctx)) {
*k1_div = PIXEL_RATE_DIV_BY_1;
*k2_div = PIXEL_RATE_DIV_BY_1;
} else if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal) || dc_is_dvi_signal(pipe_ctx->stream->signal)) {
} else if (dc_is_hdmi_tmds_signal(stream->signal) || dc_is_dvi_signal(stream->signal)) {
*k1_div = PIXEL_RATE_DIV_BY_1;
if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)
*k2_div = PIXEL_RATE_DIV_BY_2;
else
*k2_div = PIXEL_RATE_DIV_BY_4;
} else if (dc_is_dp_signal(pipe_ctx->stream->signal) || dc_is_virtual_signal(pipe_ctx->stream->signal)) {
} else if (dc_is_dp_signal(stream->signal) || dc_is_virtual_signal(stream->signal)) {
if (two_pix_per_container) {
*k1_div = PIXEL_RATE_DIV_BY_1;
*k2_div = PIXEL_RATE_DIV_BY_2;