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From f60d27917b84a86266970f628aa3dc26cac4d974 Mon Sep 17 00:00:00 2001
From: Xingyue Tao <xingyue.tao@amd.com>
Date: Fri, 16 Feb 2018 16:29:13 -0500
Subject: [PATCH 3636/4131] 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 <xingyue.tao@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dc_stream.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
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 ce0e9e7..48709d4 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 78a2bbe..f44cd4d 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 */
--
2.7.4
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