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Subject[PATCH v4 1/5] drm/bridge_connector: stop filtering events in drm_bridge_connector_hpd_cb()
Date
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

In some cases the bridge drivers would like to receive hotplug events
even in the case new status is equal to the old status. In the DP case
this is used to deliver "attention" messages to the DP host. Stop
filtering the events in the drm_bridge_connector_hpd_cb() and let
drivers decide whether they would like to receive the event or not.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Changes since v3:
- New patch, needed due to the move to drm_bridge_connector

drivers/gpu/drm/drm_bridge_connector.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
index 6b3dad03d77d..0f6f3f653f65 100644
--- a/drivers/gpu/drm/drm_bridge_connector.c
+++ b/drivers/gpu/drm/drm_bridge_connector.c
@@ -113,16 +113,11 @@ static void drm_bridge_connector_hpd_cb(void *cb_data,
struct drm_bridge_connector *drm_bridge_connector = cb_data;
struct drm_connector *connector = &drm_bridge_connector->base;
struct drm_device *dev = connector->dev;
- enum drm_connector_status old_status;

mutex_lock(&dev->mode_config.mutex);
- old_status = connector->status;
connector->status = status;
mutex_unlock(&dev->mode_config.mutex);

- if (old_status == status)
- return;
-
drm_bridge_connector_hpd_notify(connector, status);

drm_kms_helper_hotplug_event(dev);
--
2.35.1
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