From: Xingyue Tao Date: Fri, 16 Feb 2018 21:29:13 +0000 (-0500) Subject: drm/amd/display: add psr_version to stream X-Git-Tag: v4.17-rc1~185^2~18^2~68 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=85075fa04287dce81397dab75af0992274727b82;p=linux.git drm/amd/display: add psr_version to stream Brightness could not be changed for some panels whose DPCD_version is below 1.2 Now psr_version is added into stream, and it copies from the displayTarget's psr_version. It checks if the stream's psr_versio is non-zero and sets the vsc info packet revision now. Signed-off-by: Xingyue Tao Reviewed-by: Tony Cheng Reviewed-by: Anthony Koo Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index ce0e9e76eb35..48709d4b5627 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -2436,7 +2436,7 @@ static void set_vsc_info_packet( unsigned int i; /*VSC packet set to 2 when DP revision >= 1.2*/ - if (stream->sink->link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_12) { + if (stream->psr_version != 0) { vscPacketRevision = 2; } diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 78a2bbe0b272..f44cd4d87b79 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -70,7 +70,8 @@ struct dc_stream_state { bool ignore_msa_timing_param; /* TODO: custom INFO packets */ /* TODO: ABM info (DMCU) */ - /* TODO: PSR info */ + /* PSR info */ + unsigned char psr_version; /* TODO: CEA VIC */ /* from core_stream struct */