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Commit 38be1681 authored by Padmanabhan Komanduru's avatar Padmanabhan Komanduru Committed by Tatenda Chipeperekwa
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drm/msm/dp: handle DisplayPort ON/OFF during PM suspend/resume 



Add changes in the DisplayPort ON/OFF path and the HPD notification
path to handle PM suspend/resume and adb shell stop/start use-cases
which are not driven by HPD events.

Change-Id: Iedccae9104eb8937d1fd5f4ce958ad5818a2c3ff
Signed-off-by: default avatarPadmanabhan Komanduru <pkomandu@codeaurora.org>
Signed-off-by: default avatarTatenda Chipeperekwa <tatendac@codeaurora.org>
parent d213c826

drivers/gpu/drm/msm/dp/dp_display.c

+6 −2
Original line number Diff line number Diff line
@@ -930,7 +930,7 @@ static void dp_display_connect_work(struct work_struct *work) 
	struct dp_display_private *dp = container_of(dw,

			struct dp_display_private, connect_work);



	if (dp->dp_display.is_connected) {

	if (dp->dp_display.is_connected && dp_display_framework_ready(dp)) {

		pr_debug("HPD already on\n");

		return;

	}
@@ -1255,6 +1255,11 @@ static int dp_display_enable(struct dp_display *dp_display, void *panel) 


	dp->aux->init(dp->aux, dp->parser->aux_cfg);



	if (dp->debug->psm_enabled) {

		dp->link->psm_config(dp->link, &dp->panel->link_info, false);

		dp->debug->psm_enabled = false;

	}



	rc = dp->ctrl->on(dp->ctrl, dp->mst.mst_active);

	if (!rc)

		dp->power_on = true;
@@ -1433,7 +1438,6 @@ static int dp_display_disable(struct dp_display *dp_display, void *panel) 
	if (dp->usbpd->hpd_high && !dp_display_is_sink_count_zero(dp) &&

			dp->usbpd->alt_mode_cfg_done && !dp->mst.mst_active) {

		dp_display->post_open = dp_display_post_open;

		dp->dp_display.is_connected = false;

		dp->dp_display.is_sst_connected = false;

	}