diff options
Diffstat (limited to 'drivers/gpu/drm/i2c/adv7511.c')
| -rw-r--r-- | drivers/gpu/drm/i2c/adv7511.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i2c/adv7511.c b/drivers/gpu/drm/i2c/adv7511.c index dba5c0ea0827..c7c243e9b808 100644 --- a/drivers/gpu/drm/i2c/adv7511.c +++ b/drivers/gpu/drm/i2c/adv7511.c @@ -450,6 +450,18 @@ static void adv7511_hpd_work(struct work_struct *work) else status = connector_status_disconnected; + /* + * The bridge resets its registers on unplug. So when we get a plug + * event and we're already supposed to be powered, cycle the bridge to + * restore its state. + */ + if (status == connector_status_connected && + adv7511->connector.status == connector_status_disconnected && + adv7511->powered) { + regcache_mark_dirty(adv7511->regmap); + adv7511_power_on(adv7511); + } + if (adv7511->connector.status != status) { adv7511->connector.status = status; drm_kms_helper_hotplug_event(adv7511->connector.dev); |