Merge tag 'drm-msm-fixes-2022-06-28' into msm-next-staging

[linux-2.6-microblaze.git] / drivers / gpu / drm / msm / dp / dp_display.c

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index bce7793..239c8e3 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -309,12 +309,15 @@ static void dp_display_unbind(struct device *dev, struct device *master,
        struct msm_drm_private *priv = dev_get_drvdata(master);
 
        /* disable all HPD interrupts */
-       dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_INT_MASK, false);
+       if (dp->core_initialized)
+               dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_INT_MASK, false);
 
        kthread_stop(dp->ev_tsk);
 
        dp_power_client_deinit(dp->power);
        dp_aux_unregister(dp->aux);
+       dp->drm_dev = NULL;
+       dp->aux->drm_dev = NULL;
        priv->dp[dp->id] = NULL;
 }
 
@@ -872,7 +875,7 @@ static int dp_display_enable(struct dp_display_private *dp, u32 data)
                return 0;
        }
 
-       rc = dp_ctrl_on_stream(dp->ctrl);
+       rc = dp_ctrl_on_stream(dp->ctrl, data);
        if (!rc)
                dp_display->power_on = true;
 
@@ -1659,6 +1662,7 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
        int rc = 0;
        struct dp_display_private *dp_display;
        u32 state;
+       bool force_link_train = false;
 
        dp_display = container_of(dp, struct dp_display_private, dp_display);
        if (!dp_display->dp_mode.drm_mode.clock) {
@@ -1693,10 +1697,12 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
 
        state =  dp_display->hpd_state;
 
-       if (state == ST_DISPLAY_OFF)
+       if (state == ST_DISPLAY_OFF) {
                dp_display_host_phy_init(dp_display);
+               force_link_train = true;
+       }
 
-       dp_display_enable(dp_display, 0);
+       dp_display_enable(dp_display, force_link_train);
 
        rc = dp_display_post_enable(dp);
        if (rc) {
@@ -1705,10 +1711,6 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
                dp_display_unprepare(dp);
        }
 
-       /* manual kick off plug event to train link */
-       if (state == ST_DISPLAY_OFF)
-               dp_add_event(dp_display, EV_IRQ_HPD_INT, 0, 0);
-
        /* completed connection */
        dp_display->hpd_state = ST_CONNECTED;