drm/msm/dp: use drm_bridge_hpd_notify() to report HPD status changes

Currently DP driver use drm_helper_hpd_irq_event(), bypassing drm bridge
framework, to report HPD status changes to user space frame work.
Replace it with drm_bridge_hpd_notify() since DP driver is part of drm
bridge.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/570067/
Link: https://lore.kernel.org/r/1701472789-25951-4-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index a3d7cb1943e2d56608e4191133751c1329356be6..148ac1629ef226d84c6b9b85c4f827c5e3969845 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -340,26 +340,10 @@ static const struct component_ops dp_display_comp_ops = {
        .unbind = dp_display_unbind,
 };
 
-static void dp_display_send_hpd_event(struct msm_dp *dp_display)
-{
-       struct dp_display_private *dp;
-       struct drm_connector *connector;
-
-       dp = container_of(dp_display, struct dp_display_private, dp_display);
-
-       connector = dp->dp_display.connector;
-       drm_helper_hpd_irq_event(connector->dev);
-}
-
 static int dp_display_send_hpd_notification(struct dp_display_private *dp,
                                            bool hpd)
 {
-       if ((hpd && dp->dp_display.link_ready) ||
-                       (!hpd && !dp->dp_display.link_ready)) {
-               drm_dbg_dp(dp->drm_dev, "HPD already %s\n",
-                               (hpd ? "on" : "off"));
-               return 0;
-       }
+       struct drm_bridge *bridge = dp->dp_display.bridge;
 
        /* reset video pattern flag on disconnect */
        if (!hpd) {
@@ -373,7 +357,7 @@ static int dp_display_send_hpd_notification(struct dp_display_private *dp,
 
        drm_dbg_dp(dp->drm_dev, "type=%d hpd=%d\n",
                        dp->dp_display.connector_type, hpd);
-       dp_display_send_hpd_event(&dp->dp_display);
+       drm_bridge_hpd_notify(bridge, dp->dp_display.link_ready);
 
        return 0;
 }