drm/gma500: Embed struct drm_device in struct drm_psb_private

Embed struct drm_device in struct drm_psb_private. Replace the use
of dev_private by an upcast operation. Switch to managed release of
struct drm_psb_private.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210920141051.30988-4-tzimmermann@suse.de

drivers/gpu/drm/gma500/cdv_device.c

@@ -429,7 +429,7 @@ static void cdv_hotplug_work_func(struct work_struct *work)
 {
         struct drm_psb_private *dev_priv = container_of(work, struct drm_psb_private,
 							hotplug_work);
-        struct drm_device *dev = dev_priv->dev;
+	struct drm_device *dev = &dev_priv->dev;
 
         /* Just fire off a uevent and let userspace tell us what to do */
         drm_helper_hpd_irq_event(dev);

drivers/gpu/drm/gma500/intel_bios.c

@@ -207,7 +207,7 @@ static void parse_backlight_data(struct drm_psb_private *dev_priv,
 
 	lvds_bl = kmemdup(vbt_lvds_bl, sizeof(*vbt_lvds_bl), GFP_KERNEL);
 	if (!lvds_bl) {
-		dev_err(dev_priv->dev->dev, "out of memory for backlight data\n");
+		dev_err(dev_priv->dev.dev, "out of memory for backlight data\n");
 		return;
 	}
 	dev_priv->lvds_bl = lvds_bl;
@@ -248,7 +248,7 @@ static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
 	panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode),
 				      GFP_KERNEL);
 	if (panel_fixed_mode == NULL) {
-		dev_err(dev_priv->dev->dev, "out of memory for fixed panel mode\n");
+		dev_err(dev_priv->dev.dev, "out of memory for fixed panel mode\n");
 		return;
 	}
 
@@ -259,7 +259,7 @@ static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
 		dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
 		drm_mode_debug_printmodeline(panel_fixed_mode);
 	} else {
-		dev_dbg(dev_priv->dev->dev, "ignoring invalid LVDS VBT\n");
+		dev_dbg(dev_priv->dev.dev, "ignoring invalid LVDS VBT\n");
 		dev_priv->lvds_vbt = 0;
 		kfree(panel_fixed_mode);
 	}

drivers/gpu/drm/gma500/intel_gmbus.c

@@ -196,7 +196,7 @@ intel_gpio_create(struct drm_psb_private *dev_priv, u32 pin)
 		 "gma500 GPIO%c", "?BACDE?F"[pin]);
 	gpio->adapter.owner = THIS_MODULE;
 	gpio->adapter.algo_data	= &gpio->algo;
-	gpio->adapter.dev.parent = dev_priv->dev->dev;
+	gpio->adapter.dev.parent = dev_priv->dev.dev;
 	gpio->algo.setsda = set_data;
 	gpio->algo.setscl = set_clock;
 	gpio->algo.getsda = get_data;
@@ -226,7 +226,7 @@ intel_i2c_quirk_xfer(struct drm_psb_private *dev_priv,
 					       adapter);
 	int ret;
 
-	gma_intel_i2c_reset(dev_priv->dev);
+	gma_intel_i2c_reset(&dev_priv->dev);
 
 	intel_i2c_quirk_set(dev_priv, true);
 	set_data(gpio, 1);
@@ -432,7 +432,7 @@ int gma_intel_setup_gmbus(struct drm_device *dev)
 		bus->force_bit = intel_gpio_create(dev_priv, i);
 	}
 
-	gma_intel_i2c_reset(dev_priv->dev);
+	gma_intel_i2c_reset(&dev_priv->dev);
 
 	return 0;
 

drivers/gpu/drm/gma500/mid_bios.c

@@ -94,7 +94,7 @@ static void mid_get_fuse_settings(struct drm_device *dev)
 static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
 {
 	uint32_t platform_rev_id = 0;
-	struct pci_dev *pdev = to_pci_dev(dev_priv->dev->dev);
+	struct pci_dev *pdev = to_pci_dev(dev_priv->dev.dev);
 	int domain = pci_domain_nr(pdev->bus);
 	struct pci_dev *pci_gfx_root =
 		pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(2, 0));
@@ -106,8 +106,7 @@ static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
 	pci_read_config_dword(pci_gfx_root, 0x08, &platform_rev_id);
 	dev_priv->platform_rev_id = (uint8_t) platform_rev_id;
 	pci_dev_put(pci_gfx_root);
-	dev_dbg(dev_priv->dev->dev, "platform_rev_id is %x\n",
-					dev_priv->platform_rev_id);
+	dev_dbg(dev_priv->dev.dev, "platform_rev_id is %x\n", dev_priv->platform_rev_id);
 }
 
 struct mid_vbt_header {
@@ -270,7 +269,7 @@ static int mid_get_vbt_data_r10(struct drm_psb_private *dev_priv, u32 addr)
 
 static void mid_get_vbt_data(struct drm_psb_private *dev_priv)
 {
-	struct drm_device *dev = dev_priv->dev;
+	struct drm_device *dev = &dev_priv->dev;
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	u32 addr;
 	u8 __iomem *vbt_virtual;

drivers/gpu/drm/gma500/opregion.c

@@ -190,7 +190,7 @@ static void psb_intel_opregion_asle_work(struct work_struct *work)
 	}
 
 	if (asle_req & ASLE_SET_BACKLIGHT)
-		asle_stat |= asle_set_backlight(dev_priv->dev, asle->bclp);
+		asle_stat |= asle_set_backlight(&dev_priv->dev, asle->bclp);
 
 	asle->aslc = asle_stat;
 

drivers/gpu/drm/gma500/psb_drv.c

@@ -217,32 +217,24 @@ static void psb_driver_unload(struct drm_device *dev)
 
 		/* Destroy VBT data */
 		psb_intel_destroy_bios(dev);
-
-		kfree(dev_priv);
-		dev->dev_private = NULL;
 	}
 	gma_power_uninit(dev);
 }
 
 static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 {
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	struct drm_psb_private *dev_priv;
+	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
 	unsigned long resource_start, resource_len;
 	unsigned long irqflags;
 	int ret = -ENOMEM;
 	struct drm_connector *connector;
 	struct gma_encoder *gma_encoder;
 	struct psb_gtt *pg;
 
-	/* allocating and initializing driver private data */
-	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
-	if (dev_priv == NULL)
-		return -ENOMEM;
+	/* initializing driver private data */
 
 	dev_priv->ops = (struct psb_ops *)flags;
-	dev_priv->dev = dev;
-	dev->dev_private = (void *) dev_priv;
 
 	pg = &dev_priv->gtt;
 
@@ -445,22 +437,24 @@ static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
 
 static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
+	struct drm_psb_private *dev_priv;
 	struct drm_device *dev;
 	int ret;
 
 	ret = pcim_enable_device(pdev);
 	if (ret)
 		return ret;
 
-	dev = drm_dev_alloc(&driver, &pdev->dev);
-	if (IS_ERR(dev))
+	dev_priv = devm_drm_dev_alloc(&pdev->dev, &driver, struct drm_psb_private, dev);
+	if (IS_ERR(dev_priv))
 		return PTR_ERR(dev);
+	dev = &dev_priv->dev;
 
 	pci_set_drvdata(pdev, dev);
 
 	ret = psb_driver_load(dev, ent->driver_data);
 	if (ret)
-		goto err_drm_dev_put;
+		return ret;
 
 	ret = drm_dev_register(dev, ent->driver_data);
 	if (ret)
@@ -470,8 +464,6 @@ static int psb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 err_psb_driver_unload:
 	psb_driver_unload(dev);
-err_drm_dev_put:
-	drm_dev_put(dev);
 	return ret;
 }
 
@@ -481,7 +473,6 @@ static void psb_pci_remove(struct pci_dev *pdev)
 
 	drm_dev_unregister(dev);
 	psb_driver_unload(dev);
-	drm_dev_put(dev);
 }
 
 static const struct dev_pm_ops psb_pm_ops = {

drivers/gpu/drm/gma500/psb_drv.h

@@ -389,7 +389,8 @@ struct psb_ops;
 struct intel_scu_ipc_dev;
 
 struct drm_psb_private {
-	struct drm_device *dev;
+	struct drm_device dev;
+
 	struct pci_dev *aux_pdev; /* Currently only used by mrst */
 	struct pci_dev *lpc_pdev; /* Currently only used by mrst */
 	const struct psb_ops *ops;
@@ -569,7 +570,7 @@ struct drm_psb_private {
 
 static inline struct drm_psb_private *to_drm_psb_private(struct drm_device *dev)
 {
-	return dev->dev_private;
+	return container_of(dev, struct drm_psb_private, dev);
 }
 
 /* Operations for each board type */

drivers/gpu/drm/gma500/psb_irq.c

@@ -76,12 +76,12 @@ psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
 		u32 reg = psb_pipestat(pipe);
 		dev_priv->pipestat[pipe] |= mask;
 		/* Enable the interrupt, clear any pending status */
-		if (gma_power_begin(dev_priv->dev, false)) {
+		if (gma_power_begin(&dev_priv->dev, false)) {
 			u32 writeVal = PSB_RVDC32(reg);
 			writeVal |= (mask | (mask >> 16));
 			PSB_WVDC32(writeVal, reg);
 			(void) PSB_RVDC32(reg);
-			gma_power_end(dev_priv->dev);
+			gma_power_end(&dev_priv->dev);
 		}
 	}
 }
@@ -92,12 +92,12 @@ psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
 	if ((dev_priv->pipestat[pipe] & mask) != 0) {
 		u32 reg = psb_pipestat(pipe);
 		dev_priv->pipestat[pipe] &= ~mask;
-		if (gma_power_begin(dev_priv->dev, false)) {
+		if (gma_power_begin(&dev_priv->dev, false)) {
 			u32 writeVal = PSB_RVDC32(reg);
 			writeVal &= ~mask;
 			PSB_WVDC32(writeVal, reg);
 			(void) PSB_RVDC32(reg);
-			gma_power_end(dev_priv->dev);
+			gma_power_end(&dev_priv->dev);
 		}
 	}
 }

drivers/gpu/drm/gma500/psb_lid.c

@@ -14,7 +14,7 @@
 static void psb_lid_timer_func(struct timer_list *t)
 {
 	struct drm_psb_private *dev_priv = from_timer(dev_priv, t, lid_timer);
-	struct drm_device *dev = (struct drm_device *)dev_priv->dev;
+	struct drm_device *dev = (struct drm_device *)&dev_priv->dev;
 	struct timer_list *lid_timer = &dev_priv->lid_timer;
 	unsigned long irq_flags;
 	u32 __iomem *lid_state = dev_priv->opregion.lid_state;