drm/msm/dp: store dp_display in the driver data

Store the dp_display in the platform driver data instead of the
dp_display_private.

This is required to allow other sub-modules to reuse the platform
driver data.

Changes in v3: none
Changes in v4: none
Changes in v5: none
Changes in v6: rebase on top of latest patchset of dependency
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/dp/dp_display.c

@@ -181,11 +181,11 @@ static int dp_display_bind(struct device *dev, struct device *master,
 	struct dp_display_private *dp;
 	struct drm_device *drm;
 	struct msm_drm_private *priv;
-	struct platform_device *pdev = to_platform_device(dev);
 
 	drm = dev_get_drvdata(master);
 
-	dp = platform_get_drvdata(pdev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 	if (!dp) {
 		DRM_ERROR("DP driver bind failed. Invalid driver data\n");
 		return -EINVAL;
@@ -220,11 +220,11 @@ static void dp_display_unbind(struct device *dev, struct device *master,
 			      void *data)
 {
 	struct dp_display_private *dp;
-	struct platform_device *pdev = to_platform_device(dev);
 	struct drm_device *drm = dev_get_drvdata(master);
 	struct msm_drm_private *priv = drm->dev_private;
 
-	dp = platform_get_drvdata(pdev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 	if (!dp) {
 		DRM_ERROR("Invalid DP driver data\n");
 		return;
@@ -359,7 +359,8 @@ static int dp_display_usbpd_configure_cb(struct device *dev)
 		goto end;
 	}
 
-	dp = dev_get_drvdata(dev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 	if (!dp) {
 		DRM_ERROR("no driver data found\n");
 		rc = -ENODEV;
@@ -383,7 +384,8 @@ static int dp_display_usbpd_disconnect_cb(struct device *dev)
 	int rc = 0;
 	struct dp_display_private *dp;
 
-	dp = dev_get_drvdata(dev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 
 	dp_add_event(dp, EV_USER_NOTIFICATION, false, 0);
 
@@ -435,7 +437,8 @@ static int dp_display_usbpd_attention_cb(struct device *dev)
 		return -EINVAL;
 	}
 
-	dp = dev_get_drvdata(dev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 	if (!dp) {
 		DRM_ERROR("no driver data found\n");
 		return -ENODEV;
@@ -1070,12 +1073,14 @@ static int dp_display_probe(struct platform_device *pdev)
 		return -EPROBE_DEFER;
 	}
 
-	platform_set_drvdata(pdev, dp);
-
 	mutex_init(&dp->event_mutex);
+
 	init_completion(&dp->resume_comp);
+
 	g_dp_display = &dp->dp_display;
 
+	platform_set_drvdata(pdev, g_dp_display);
+
 	rc = component_add(&pdev->dev, &dp_display_comp_ops);
 	if (rc) {
 		DRM_ERROR("component add failed, rc=%d\n", rc);
@@ -1089,7 +1094,8 @@ static int dp_display_remove(struct platform_device *pdev)
 {
 	struct dp_display_private *dp;
 
-	dp = platform_get_drvdata(pdev);
+	dp = container_of(g_dp_display,
+			struct dp_display_private, dp_display);
 
 	dp_display_deinit_sub_modules(dp);