From 9a8ac588ee56839e0332b0419db1e3bfa3cb7cee Mon Sep 17 00:00:00 2001
From: Daniel Miess <Daniel.Miess@amd.com>
Date: Tue, 19 Jul 2022 14:07:41 -0400
Subject: drm/amd/display: Use pixels per container logic for DCN314 DCCG
dividers
Git-commit: 89390c4982b77c159e3b8a0be4a04552ef0971a0
Patch-mainline: v6.0-rc2
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
[Why]
DP DSC YCbCr422 not working because dcn314_calculate_dccg_k1_k2_values
does not account for two pixels per container
[How]
Replace the contents of dcn314_calculate_dccg_k1_k2_values with the
code from the function dcn32_calculate_dccg_k1_k2_values
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Daniel Miess <Daniel.Miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c
index 755c715ad8dc..452f4a9bf251 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_hwseq.c
@@ -343,7 +343,10 @@ unsigned int dcn314_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsig
{
struct dc_stream_state *stream = pipe_ctx->stream;
unsigned int odm_combine_factor = 0;
+ struct dc *dc = pipe_ctx->stream->ctx->dc;
+ bool two_pix_per_container = false;
+ two_pix_per_container = optc2_is_two_pixels_per_containter(&stream->timing);
odm_combine_factor = get_odm_config(pipe_ctx, NULL);
if (is_dp_128b_132b_signal(pipe_ctx)) {
@@ -355,16 +358,13 @@ unsigned int dcn314_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsig
else
*k2_div = PIXEL_RATE_DIV_BY_4;
} else if (dc_is_dp_signal(pipe_ctx->stream->signal)) {
- if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) {
+ if (two_pix_per_container) {
*k1_div = PIXEL_RATE_DIV_BY_1;
*k2_div = PIXEL_RATE_DIV_BY_2;
- } else if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422) {
- *k1_div = PIXEL_RATE_DIV_BY_2;
- *k2_div = PIXEL_RATE_DIV_BY_2;
} else {
- if (odm_combine_factor == 1)
- *k2_div = PIXEL_RATE_DIV_BY_4;
- else if (odm_combine_factor == 2)
+ *k1_div = PIXEL_RATE_DIV_BY_1;
+ *k2_div = PIXEL_RATE_DIV_BY_4;
+ if ((odm_combine_factor == 2) || dc->debug.enable_dp_dig_pixel_rate_div_policy)
*k2_div = PIXEL_RATE_DIV_BY_2;
}
}
--
2.38.1