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authorDmitry Baryshkov <dmitry.baryshkov@linaro.org>2021-03-14 04:31:57 +0300
committerDmitry Baryshkov <dmitry.baryshkov@linaro.org>2021-03-14 04:31:57 +0300
commit819f0a4ea95624f300944bd0d2c229e7cab417d3 (patch)
tree7b26e65dc6f6aab2f4f4ab222c12d23870c68dbd
parent659bc5fa170a90d3f8baeba95cd7c295d5ebd77f (diff)
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. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
-rw-r--r--drivers/gpu/drm/bridge/lontium-lt9611uxc.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
index fee27952ec6d..3aaf73053045 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
@@ -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)
- drm_kms_helper_hotplug_event(lt9611uxc->connector.dev);
- else {
+ if (lt9611uxc->connector.dev) {
+ if (lt9611uxc->connector.dev->mode_config.funcs)
+ drm_kms_helper_hotplug_event(lt9611uxc->connector.dev);
+ } 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,