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SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230016)(4636009)(39860400002)(346002)(376002)(136003)(396003)(46966006)(36840700001)(40470700004)(82740400003)(34020700004)(40480700001)(81166007)(83380400001)(186003)(54906003)(4326008)(16526019)(426003)(336012)(47076005)(8676002)(6916009)(316002)(36860700001)(70586007)(70206006)(356005)(36756003)(41300700001)(8936002)(26005)(86362001)(478600001)(5660300002)(2906002)(6666004)(2616005)(1076003)(7696005)(40460700003)(44832011)(82310400005)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jul 2022 16:36:50.2569 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a8408207-83b7-4566-1def-08da61000ed9 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: BN8NAM11FT063.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB6277 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: stylon.wang@amd.com, Charlene Liu , Chris Park , Sunpeng.Li@amd.com, Harry.Wentland@amd.com, qingqing.zhuo@amd.com, Rodrigo.Siqueira@amd.com, roman.li@amd.com, solomon.chiu@amd.com, Aurabindo.Pillai@amd.com, wayne.lin@amd.com, Bhawanpreet.Lakha@amd.com, agustin.gutierrez@amd.com, pavle.kotarac@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Chris Park [Why] Status flags definition is reduced to read less bytes in SCDC transaction for status update. [How] Reduce definition of reserved bytes from 3 to 1 for status update. Reviewed-by: Charlene Liu Acked-by: Solomon Chiu Signed-off-by: Chris Park --- drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index b13a516ba0f2..d01d2eeed813 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -93,16 +93,13 @@ union hdmi_scdc_update_read_data { }; union hdmi_scdc_status_flags_data { - uint8_t byte[2]; + uint8_t byte; struct { uint8_t CLOCK_DETECTED:1; uint8_t CH0_LOCKED:1; uint8_t CH1_LOCKED:1; uint8_t CH2_LOCKED:1; uint8_t RESERVED:4; - uint8_t RESERVED2:8; - uint8_t RESERVED3:8; - } fields; }; @@ -770,7 +767,7 @@ void dal_ddc_service_read_scdc_data(struct ddc_service *ddc_service) sizeof(scramble_status)); offset = HDMI_SCDC_STATUS_FLAGS; dal_ddc_service_query_ddc_data(ddc_service, slave_address, - &offset, sizeof(offset), status_data.byte, + &offset, sizeof(offset), &status_data.byte, sizeof(status_data.byte)); } } -- 2.25.1