From: Tony Cheng Date: Fri, 23 Dec 2016 07:12:19 -0500 Subject: drm/amd/display: debug opt disable hdmi deep color Git-commit: dc0bcaf2cafaa7a6023055d13ebf7dcc8c6e00b5 Patch-mainline: v4.15-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Signed-off-by: Tony Cheng Reviewed-by: Yongqiang Sun Acked-by: Harry Wentland Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 3 +++ 2 files changed, 4 insertions(+) --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -147,6 +147,7 @@ struct dc_debug { bool disable_power_gate; bool disable_clock_gate; bool disable_dmcu; + bool disable_hdmi_deep_color; }; struct dc { --- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c @@ -993,6 +993,9 @@ bool dce110_link_encoder_construct( enc110->base.features.max_deep_color = COLOR_DEPTH_121212; enc110->base.features.max_hdmi_deep_color = COLOR_DEPTH_121212; + if (enc110->base.ctx->dc->debug.disable_hdmi_deep_color) + enc110->base.features.max_hdmi_deep_color = COLOR_DEPTH_888; + /* set the flag to indicate whether driver poll the I2C data pin * while doing the DP sink detect */