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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jun 2022 19:31:32.5283 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8932fb1e-f3f5-4abb-915b-08da44ce7fea X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT040.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6367 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alexander.deucher@amd.com, Leo Li , harry.wentland@amd.com, dingchen.zhang@amd.com, roman.li@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: David Zhang [why & how] Expose vendor specific DPCD registers for rate controlling the eDP sink TCON's refresh rate during PSR active. When used in combination with PSR-SU and Freesync, it is called PSR-SU Rate Contorol, or PSR-SU-RC for short. v2: Add all DPCD registers required Signed-off-by: David Zhang Acked-by: Leo Li --- drivers/gpu/drm/amd/display/include/ddc_service_types.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/include/ddc_service_types.h b/drivers/gpu/drm/amd/display/include/ddc_service_types.h index 20a3d4e23f66..05096c644a60 100644 --- a/drivers/gpu/drm/amd/display/include/ddc_service_types.h +++ b/drivers/gpu/drm/amd/display/include/ddc_service_types.h @@ -41,6 +41,10 @@ #define DP_DEVICE_ID_38EC11 0x38EC11 #define DP_FORCE_PSRSU_CAPABILITY 0x40F +#define DP_SINK_PSR_ACTIVE_VTOTAL 0x373 +#define DP_SINK_PSR_ACTIVE_VTOTAL_CONTROL_MODE 0x375 +#define DP_SOURCE_PSR_ACTIVE_VTOTAL 0x376 + enum ddc_result { DDC_RESULT_UNKNOWN = 0, DDC_RESULT_SUCESSFULL, -- 2.36.1