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Commit 0ca2e2dc authored by Tatenda Chipeperekwa's avatar Tatenda Chipeperekwa
Browse files

disp: msm: dp: send hotplug notification on state change 



Send the hotplug notification to the user space only when there
is a state change e.g. from connect to disconnect, or vice versa.
This ensures that there are no spurious notifications that are
sent to the user space.

CRs-Fixed: 2478822
Change-Id: Ic3fdc95de5f2573a14cb526203d7e4ab58c567ba
Signed-off-by: default avatarTatenda Chipeperekwa <tatendac@codeaurora.org>
parent 66b5946f

msm/dp/dp_display.c

+9 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ struct dp_display_private { 
	bool core_initialized;

	bool power_on;

	bool is_connected;

	enum drm_connector_status cached_connector_status;



	atomic_t aborted;
@@ -568,6 +569,13 @@ static void dp_display_send_hpd_event(struct dp_display_private *dp) 
	}



	connector->status = connector->funcs->detect(connector, false);

	if (dp->cached_connector_status == connector->status) {

		DP_DEBUG("connector status (%d) unchanged, skipping uevent\n",

				dp->cached_connector_status);

		return;

	}



	dp->cached_connector_status = connector->status;



	dev = connector->dev;
@@ -1368,6 +1376,7 @@ static int dp_init_sub_modules(struct dp_display_private *dp) 
		goto error_debug;

	}



	dp->cached_connector_status = connector_status_disconnected;

	dp->tot_dsc_blks_in_use = 0;



	dp->debug->hdcp_disabled = hdcp_disabled;