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drm/amd/display: Correct non-OLED pre_T11_delay.

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commit 893f07452bca56ff146a6be02b3294a9ea23d18a upstream.

[Why]
Only OLED panels require non-zero pre_T11_delay defaultly.
Others should be controlled by power sequence.

[How]
For non OLED, pre_T11_delay delay in code should be zero.
Also post_T7_delay.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Zhongwei Zhang <Zhongwei.Zhang@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhongwei Zhang
2025-05-13 16:45:59 +08:00
committed by Greg Kroah-Hartman
parent e2c3133ff4
commit ca8efc6a89
1 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+4 -3
View File
@@ -951,8 +951,8 @@ void dce110_edp_backlight_control(
struct dc_context *ctx = link->ctx; struct dc_context *ctx = link->ctx;
struct bp_transmitter_control cntl = { 0 }; struct bp_transmitter_control cntl = { 0 };
uint8_t pwrseq_instance = 0; uint8_t pwrseq_instance = 0;
unsigned int pre_T11_delay = OLED_PRE_T11_DELAY; unsigned int pre_T11_delay = (link->dpcd_sink_ext_caps.bits.oled ? OLED_PRE_T11_DELAY : 0);
unsigned int post_T7_delay = OLED_POST_T7_DELAY; unsigned int post_T7_delay = (link->dpcd_sink_ext_caps.bits.oled ? OLED_POST_T7_DELAY : 0);
if (dal_graphics_object_id_get_connector_id(link->link_enc->connector) if (dal_graphics_object_id_get_connector_id(link->link_enc->connector)
!= CONNECTOR_ID_EDP) { != CONNECTOR_ID_EDP) {
@@ -1067,7 +1067,8 @@ void dce110_edp_backlight_control(
if (!enable) { if (!enable) {
/*follow oem panel config's requirement*/ /*follow oem panel config's requirement*/
pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms; pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms;
msleep(pre_T11_delay); if (pre_T11_delay)
msleep(pre_T11_delay);
} }
} }