drm/msm/dp: remove unused stubs

Refactoring DP code transformed several functions into empty stubs.
Remove them.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/490100/
Link: https://lore.kernel.org/r/20220617232434.1139950-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index b36f8b69a2445242df864d346c1150dadef314cc..2dccc23487bcd421fde2d933d02fe0c663a9e6ea 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -867,11 +867,6 @@ static int dp_display_set_mode(struct msm_dp *dp_display,
        return 0;
 }
 
-static int dp_display_prepare(struct msm_dp *dp_display)
-{
-       return 0;
-}
-
 static int dp_display_enable(struct dp_display_private *dp, u32 data)
 {
        int rc = 0;
@@ -948,11 +943,6 @@ static int dp_display_disable(struct dp_display_private *dp, u32 data)
        return 0;
 }
 
-static int dp_display_unprepare(struct msm_dp *dp_display)
-{
-       return 0;
-}
-
 int dp_display_set_plugged_cb(struct msm_dp *dp_display,
                hdmi_codec_plugged_cb fn, struct device *codec_dev)
 {
@@ -1468,21 +1458,9 @@ static int dp_pm_suspend(struct device *dev)
        return 0;
 }
 
-static int dp_pm_prepare(struct device *dev)
-{
-       return 0;
-}
-
-static void dp_pm_complete(struct device *dev)
-{
-
-}
-
 static const struct dev_pm_ops dp_pm_ops = {
        .suspend = dp_pm_suspend,
        .resume =  dp_pm_resume,
-       .prepare = dp_pm_prepare,
-       .complete = dp_pm_complete,
 };
 
 static struct platform_driver dp_display_driver = {
@@ -1694,13 +1672,6 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
                return;
        }
 
-       rc = dp_display_prepare(dp);
-       if (rc) {
-               DRM_ERROR("DP display prepare failed, rc=%d\n", rc);
-               mutex_unlock(&dp_display->event_mutex);
-               return;
-       }
-
        state =  dp_display->hpd_state;
 
        if (state == ST_DISPLAY_OFF) {
@@ -1714,7 +1685,6 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
        if (rc) {
                DRM_ERROR("DP display post enable failed, rc=%d\n", rc);
                dp_display_disable(dp_display, 0);
-               dp_display_unprepare(dp);
        }
 
        /* completed connection */
@@ -1739,7 +1709,6 @@ void dp_bridge_post_disable(struct drm_bridge *drm_bridge)
 {
        struct msm_dp_bridge *dp_bridge = to_dp_bridge(drm_bridge);
        struct msm_dp *dp = dp_bridge->dp_display;
-       int rc = 0;
        u32 state;
        struct dp_display_private *dp_display;
 
@@ -1758,10 +1727,6 @@ void dp_bridge_post_disable(struct drm_bridge *drm_bridge)
 
        dp_display_disable(dp_display, 0);
 
-       rc = dp_display_unprepare(dp);
-       if (rc)
-               DRM_ERROR("DP display unprepare failed, rc=%d\n", rc);
-
        state =  dp_display->hpd_state;
        if (state == ST_DISCONNECT_PENDING) {
                /* completed disconnection */