From: Stefan Wahren <wahre...@gmx.net>
drm_atomic_helper_connector_hdmi_hotplug() must be called
regardless of the connection status, otherwise the HDMI audio
disconnect event won't be notified. Also update the comment on
drm_atomic_helper_connector_hdmi_hotplug() to explain that this is
necessary.
Fixes: 2ea9ec5d2c20 ("drm/vc4: hdmi: use
drm_atomic_helper_connector_hdmi_hotplug()")
Suggested-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Signed-off-by: Stefan Wahren <wahre...@gmx.net>
Signed-off-by: David Turner <david.tur...@raspberrypi.com>
---
drivers/gpu/drm/display/drm_hdmi_state_helper.c | 3 ++-
drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++--
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index
c205f37da1e12b11c384670db83e43613e031340..d26d51902ba1a73175b23eec71562a30ceda1082
100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
@@ -816,7 +816,8 @@ drm_atomic_helper_connector_hdmi_update(struct
drm_connector *connector,
* @status: Connection status
*
* This function should be called as a part of the .detect() / .detect_ctx()
- * callbacks, updating the HDMI-specific connector's data.
+ * callbacks, updating the HDMI-specific connector's data. It also needs to be
+ * called for disconnects to notify audio users of the unplug.
*/
void drm_atomic_helper_connector_hdmi_hotplug(struct drm_connector *connector,
enum drm_connector_status status)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index
37238a12baa58a06a5d6f40d1ab64abc7fac60d7..37a7d45695f236d3ab281d9a8676921fd434955c
100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -372,13 +372,13 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi
*vc4_hdmi,
* the lock for now.
*/
+ drm_atomic_helper_connector_hdmi_hotplug(connector, status);
+
if (status == connector_status_disconnected) {
cec_phys_addr_invalidate(vc4_hdmi->cec_adap);
return;
}
- drm_atomic_helper_connector_hdmi_hotplug(connector, status);
-
cec_s_phys_addr(vc4_hdmi->cec_adap,
connector->display_info.source_physical_address, false);
--
2.34.1
