From e6cf22ef5fae493a99e162c3f2e7233448d2b970 Mon Sep 17 00:00:00 2001 From: Aurabindo Pillai Date: Tue, 9 Aug 2022 17:07:14 -0400 Subject: [PATCH] drm/amd/display: program k1/k2 divider for virtual signal for DCN32 [Why&How] When using IGT, kms_bw multi display tests trigger an assert since we ignore virtual signal type. k1/k2 dividers should be correctly programmed if VSYNC needs to be correct. Add the appropriate condition to the if arm to fix this. Reviewed-by: Rodrigo Siqueira Acked-by: Brian Chang Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 ebd3945c71f1..d1249fe1e412 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -1133,7 +1133,7 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign *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)) { + } else if (dc_is_dp_signal(pipe_ctx->stream->signal) || dc_is_virtual_signal(pipe_ctx->stream->signal)) { if (two_pix_per_container) { *k1_div = PIXEL_RATE_DIV_BY_1; *k2_div = PIXEL_RATE_DIV_BY_2;