Unverified Commit 15184965 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Robert Foss
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drm/bridge/lontium-lt9611uxc: fix provided connector suport 



- set DRM_CONNECTOR_POLL_HPD as the connector will generate hotplug
  events on its own

- do not call drm_kms_helper_hotplug_event() unless mode_config.funcs
  pointer is not NULL to remove possible kernel oops.

Fixes: bc6fa867 ("drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler")
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708230329.395976-1-dmitry.baryshkov@linaro.org
parent 9962601c

drivers/gpu/drm/bridge/lontium-lt9611uxc.c

+6 −3
Original line number Diff line number Diff line
@@ -167,9 +167,10 @@ static void lt9611uxc_hpd_work(struct work_struct *work) 
	struct lt9611uxc *lt9611uxc = container_of(work, struct lt9611uxc, work);

	bool connected;



	if (lt9611uxc->connector.dev)

	if (lt9611uxc->connector.dev) {

		if (lt9611uxc->connector.dev->mode_config.funcs)

			drm_kms_helper_hotplug_event(lt9611uxc->connector.dev);

	else {

	} else {



		mutex_lock(&lt9611uxc->ocm_lock);

		connected = lt9611uxc->hdmi_connected;
@@ -339,6 +340,8 @@ static int lt9611uxc_connector_init(struct drm_bridge *bridge, struct lt9611uxc 
		return -ENODEV;

	}



	lt9611uxc->connector.polled = DRM_CONNECTOR_POLL_HPD;



	drm_connector_helper_add(&lt9611uxc->connector,

				 &lt9611uxc_bridge_connector_helper_funcs);

	ret = drm_connector_init(bridge->dev, &lt9611uxc->connector,