For internal HPD case, hpd_event_thread is created to handle HPD interrupts generated by HPD block of DP controller. It converts HPD interrupts into events and executed them under hpd_event_thread context. For external HPD case, HPD events is delivered by way of dp_bridge_hpd_notify() under thread context. Since they are executed under thread context already, there is no reason to hand over those events to hpd_event_thread. Hence dp_hpd_plug_handle() and dp_hpd_unplug_hanlde() are called directly at dp_bridge_hpd_notify(). Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx> --- drivers/gpu/drm/msm/dp/dp_display.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 94dd60f..0476ad9 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1706,7 +1706,8 @@ void dp_bridge_hpd_notify(struct drm_bridge *bridge, status &= ~0x80000000; if (!dp_display->link_ready && status == connector_status_connected) - dp_add_event(dp, EV_HPD_PLUG_INT, 0, 0); + dp_hpd_plug_handle(dp, 0); else if (dp_display->link_ready && status == connector_status_disconnected) - dp_add_event(dp, EV_HPD_UNPLUG_INT, 0, 0); + dp_hpd_unplug_handle(dp, 0); + } -- 2.7.4
