From db8ff9d38c18bed7dad5bf757d6e141603922c2b Mon Sep 17 00:00:00 2001 From: Joseph Gravenor Date: Thu, 24 Oct 2019 13:55:10 -0400 Subject: [PATCH] drm/amd/display: Renoir chroma viewport WA Read the correct register [why] Before we were reading registers specific to luma size, which caused a black line to appear on the screen from time to time, as although the luma row height is generally the same as the chroma row height for the video case, it will sometimes be one more [how] Read the register specific for the chroma size Signed-off-by: Joseph Gravenor Reviewed-by: Tony Cheng Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c index d86b6b6211bc8..32e8b589aeb53 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c @@ -200,8 +200,8 @@ void hubp21_set_viewport( int pte_row_height = 0; int pte_rows = 0; - REG_GET(DCHUBP_REQ_SIZE_CONFIG, - PTE_ROW_HEIGHT_LINEAR, &pte_row_height); + REG_GET(DCHUBP_REQ_SIZE_CONFIG_C, + PTE_ROW_HEIGHT_LINEAR_C, &pte_row_height); pte_row_height = 1 << (pte_row_height + 3); pte_rows = (viewport_c->height / pte_row_height) + 1; -- 2.30.2