From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Thu, 19 Apr 2018 16:05:46 +0200
Subject: gpu: drm: vc4: simplify getting .drvdata
Git-commit: 9f900de31dcc14b3c5765a383ef52b9efba7f542
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180419140641.27926-17-wsa+renesas@sang-engineering.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/vc4/vc4_drv.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -319,8 +319,7 @@ dev_unref:
 
 static void vc4_drm_unbind(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct drm_device *drm = platform_get_drvdata(pdev);
+	struct drm_device *drm = dev_get_drvdata(dev);
 
 	drm_dev_unregister(drm);