drm: Remove the struct drm_device platformdev field

The field contains a pointer to the parent platform device of the DRM
device. As struct drm_device also contains a dev pointer to the struct
device embedded in the platform_device structure, the platformdev field
is redundant. Remove it and use the dev pointer directly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For sti
Acked-by: Russell King <rmk+kernel@armlinux.org.uk> # For armada
Acked-by: Rob Clark <robdclark@gmail.com> # For msm
Acked-by: Xinwei Kong<kong.kongxinwei@hisilicon.com>

9 files changed, 5 insertions, 12 deletions

diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 63f42d001f33..b4e5e0529eae 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -154,10 +154,9 @@ static int armada_drm_bind(struct device *dev)
                 return ret;
         }
 
-        priv->drm.platformdev = to_platform_device(dev);
         priv->drm.dev_private = priv;
 
-        platform_set_drvdata(priv->drm.platformdev, &priv->drm);
+        dev_set_drvdata(dev, &priv->drm);
 
         INIT_WORK(&priv->fb_unref_work, armada_drm_unref_work);
         INIT_KFIFO(priv->fb_unref);
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
index 94ea963519b2..a4e1206a66a8 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
@@ -434,7 +434,7 @@ fail:
 
 struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 {
-        struct platform_device *pdev = dev->platformdev;
+        struct platform_device *pdev = to_platform_device(dev->dev);
         struct mdp4_platform_config *config = mdp4_get_config(pdev);
         struct mdp4_kms *mdp4_kms;
         struct msm_kms *kms = NULL;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
index 34ab553f6897..ba2d017f6591 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
@@ -505,7 +505,7 @@ struct mdp5_cfg_handler *mdp5_cfg_init(struct mdp5_kms *mdp5_kms,
                 uint32_t major, uint32_t minor)
 {
         struct drm_device *dev = mdp5_kms->dev;
-        struct platform_device *pdev = dev->platformdev;
+        struct platform_device *pdev = to_platform_device(dev->dev);
         struct mdp5_cfg_handler *cfg_handler;
         struct mdp5_cfg_platform *pconfig;
         int i, ret = 0;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c
index d444a6901fff..f8f48d014978 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c
@@ -160,7 +160,7 @@ void msm_mdss_destroy(struct drm_device *dev)
 
 int msm_mdss_init(struct drm_device *dev)
 {
-        struct platform_device *pdev = dev->platformdev;
+        struct platform_device *pdev = to_platform_device(dev->dev);
         struct msm_drm_private *priv = dev->dev_private;
         struct msm_mdss *mdss;
         int ret;
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 70226eaa5cac..19435079b11f 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -383,7 +383,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
         }
 
         platform_set_drvdata(pdev, ddev);
-        ddev->platformdev = pdev;
 
         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
         if (!priv) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index dd7b52ab505a..e4ddd43c2c79 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -106,7 +106,7 @@ nouveau_name(struct drm_device *dev)
         if (dev->pdev)
                 return nouveau_pci_name(dev->pdev);
         else
-                return nouveau_platform_name(dev->platformdev);
+                return nouveau_platform_name(to_platform_device(dev->dev));
 }
 
 static int
@@ -1088,7 +1088,6 @@ nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
                 goto err_free;
         }
 
-        drm->platformdev = pdev;
         platform_set_drvdata(pdev, drm);
 
         return drm;
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index e6c1646b9c53..fedade400eeb 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -273,8 +273,6 @@ static int sti_bind(struct device *dev)
         if (IS_ERR(ddev))
                 return PTR_ERR(ddev);
 
-        ddev->platformdev = to_platform_device(dev);
-
         ret = sti_init(ddev);
         if (ret)
                 goto err_drm_dev_unref;
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 372d86fbb093..ea6a228a217f 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -245,7 +245,6 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
         if (IS_ERR(ddev))
                 return PTR_ERR(ddev);
 
-        ddev->platformdev = pdev;
         ddev->dev_private = priv;
         platform_set_drvdata(pdev, ddev);
         drm_mode_config_init(ddev);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 231a6cc925dd..aa8f20314237 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -610,7 +610,6 @@ struct drm_device {
         struct pci_controller *hose;
 #endif
 
-        struct platform_device *platformdev; /**< Platform device struture */
         struct virtio_device *virtdev;
 
         struct drm_sg_mem *sg;  /**< Scatter gather memory */