Commit 893f0745 authored by Zhongwei Zhang's avatar Zhongwei Zhang Committed by Alex Deucher
Browse files

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



[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: default avatarCharlene Liu <charlene.liu@amd.com>
Signed-off-by: default avatarZhongwei Zhang <Zhongwei.Zhang@amd.com>
Signed-off-by: default avatarWayne Lin <wayne.lin@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e34bcf15

drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c

+4 −3
Original line number Diff line number Diff line
@@ -952,8 +952,8 @@ void dce110_edp_backlight_control( 
	struct dc_context *ctx = link->ctx;

	struct bp_transmitter_control cntl = { 0 };

	uint8_t pwrseq_instance = 0;

	unsigned int pre_T11_delay = OLED_PRE_T11_DELAY;

	unsigned int post_T7_delay = OLED_POST_T7_DELAY;

	unsigned int pre_T11_delay = (link->dpcd_sink_ext_caps.bits.oled ? OLED_PRE_T11_DELAY : 0);

	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)

		!= CONNECTOR_ID_EDP) {
@@ -1069,6 +1069,7 @@ void dce110_edp_backlight_control( 
	if (!enable) {

		/*follow oem panel config's requirement*/

		pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms;

		if (pre_T11_delay)

			msleep(pre_T11_delay);

	}

}