drm/apple: Send HPD event on disconnect only connector is cconected

jannau · jannau · commit f688c21ea52a · 2026-01-06T22:23:53.000+01:00
Fixes a deadlock while disabling the CRTC from HPD event via drm_client.

Signed-off-by: Janne Grunau &lt;j@jannau.net&gt;
diff --git a/drivers/gpu/drm/apple/dcp.c b/drivers/gpu/drm/apple/dcp.c
@@ -426,7 +426,7 @@ static int dcp_dptx_connect(struct apple_dcp *dcp, u32 port)
 
 static void disconnected_hpd_event(struct apple_connector *con)
 {
-	if (con) {
+	if (con && con->connected) {
 		con->connected = 0;
 		drm_kms_helper_connector_hotplug_event(&con->base);
 	}

Original file line number	Diff line number	Diff line change
`@@ -426,7 +426,7 @@ static int dcp_dptx_connect(struct apple_dcp *dcp, u32 port)`
`426`	`426`
`427`	`427`	`static void disconnected_hpd_event(struct apple_connector *con)`
`428`	`428`	`{`
`429`		`- if (con) {`
	`429`	`+ if (con && con->connected) {`
`430`	`430`	`con->connected = 0;`
`431`	`431`	`drm_kms_helper_connector_hotplug_event(&con->base);`
`432`	`432`	`}`