From 234cc26f7dd15761dcd2ef818b9acaf4fe9cf92e Mon Sep 17 00:00:00 2001 From: Dmytro Laktyushkin Date: Thu, 11 Mar 2021 09:19:34 -0500 Subject: drm/amd/display: revert max lb lines change Some hardware revisions do have a max number of lines limitation not honouring which can cause pstate switch underflow. Tested-by: Daniel Wheeler Signed-off-by: Dmytro Laktyushkin Reviewed-by: Eric Bernstein Acked-by: Solomon Chiu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c') diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 25f8dd5db080..3c2a0518f273 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -112,7 +112,7 @@ struct _vcs_dpi_ip_params_st dcn2_0_ip = { .is_line_buffer_bpp_fixed = 0, .line_buffer_fixed_bpp = 0, .dcc_supported = true, - .max_line_buffer_lines = 32, + .max_line_buffer_lines = 12, .writeback_luma_buffer_size_kbytes = 12, .writeback_chroma_buffer_size_kbytes = 8, .writeback_chroma_line_buffer_width_pixels = 4, @@ -180,7 +180,7 @@ static struct _vcs_dpi_ip_params_st dcn2_0_nv14_ip = { .is_line_buffer_bpp_fixed = 0, .line_buffer_fixed_bpp = 0, .dcc_supported = true, - .max_line_buffer_lines = 32, + .max_line_buffer_lines = 12, .writeback_luma_buffer_size_kbytes = 12, .writeback_chroma_buffer_size_kbytes = 8, .writeback_chroma_line_buffer_width_pixels = 4, -- cgit v1.2.3-59-g8ed1b