From 9286bf28f7ee40bd875aa2303842e9ad2fee410d Mon Sep 17 00:00:00 2001
From: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Date: Tue, 14 Jun 2022 16:38:01 -0400
Subject: drm/amd/display: Use two pixel per container for k1/k2 div
Git-commit: 2b2b3a751b29a09942a15bc0c4fed940b7ce1857
Patch-mainline: v6.0-rc1
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
Currently, we check if pixel_encoding is equal to
PIXEL_ENCODING_YCBCR422 to get the k1/k2 div parameters. This commit
changes this logic slightly by checking if two pixels per container are
used.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@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>
---
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
index cbc93f5a428e..baaeaaff23df 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -1084,6 +1084,7 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
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 = optc2_is_two_pixels_per_containter(&stream->timing);
odm_combine_factor = get_odm_config(pipe_ctx, NULL);
@@ -1096,13 +1097,12 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
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 {
+ *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