From: Dale Zhao Date: Fri, 5 Jun 2020 09:55:18 +0000 (+0800) Subject: drm/amd/display: fine tune logic of edid max TMDS clock check X-Git-Tag: v5.10.7~1861^2~25^2~29 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c04bd16e481663aade0150daf7a91cb87831bb83;p=platform%2Fkernel%2Flinux-rpi.git drm/amd/display: fine tune logic of edid max TMDS clock check [WHY] Check max_tmds_clk_mhz firstly will restrict pixel clock under HDMI 1.4, thus HDMI2.0 port can't correctly support 4K 60Hz. [HOW] Fine tune the logic to check max_forum_tmds_clk_mhz firstly. Signed-off-by: Dale Zhao Reviewed-by: Chris Park Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index f51e576..d642414 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -255,15 +255,14 @@ struct dc_edid_caps { uint8_t qs_bit; uint8_t qy_bit; + uint32_t max_tmds_clk_mhz; + /*HDMI 2.0 caps*/ bool lte_340mcsc_scramble; bool edid_hdmi; bool hdr_supported; - uint32_t max_tmds_clk_mhz; - uint32_t max_forum_tmds_clk_mhz; - struct dc_panel_patch panel_patch; }; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c index a9af3f6..81db017 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c @@ -629,9 +629,6 @@ static bool dcn10_link_encoder_validate_hdmi_output( if (edid_caps->max_tmds_clk_mhz != 0 && adjusted_pix_clk_100hz > edid_caps->max_tmds_clk_mhz * 10000) return false; - if (edid_caps->max_forum_tmds_clk_mhz != 0 && - adjusted_pix_clk_100hz > edid_caps->max_forum_tmds_clk_mhz * 10000) - return false; if (max_deep_color < crtc_timing->display_color_depth) return false;