dm: x86: ivybridge: Convert graphics init to use DM PCI API

Use the driver-model PCI functions here where possible. For now we have to
search for the device with pci_bus_find_bdf() but at some point we can put
this in a proper driver and avoid this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/cpu/ivybridge/bd82x6x.c

@@ -86,8 +86,10 @@ static int bd82x6x_probe(struct udevice *dev)
 		debug("%s: Cannot find GMA node\n", __func__);
 		return -EINVAL;
 	}
-	ret = gma_func0_init(PCH_VIDEO_DEV, pci_bus_to_hose(0), blob,
-			     gma_node);
+	ret = dm_pci_bus_find_bdf(PCH_VIDEO_DEV, &dev);
+	if (ret)
+		return ret;
+	ret = gma_func0_init(dev, blob, gma_node);
 	if (ret)
 		return ret;
 

arch/x86/cpu/ivybridge/gma.c

@@ -728,8 +728,7 @@ static int int15_handler(void)
 	return res;
 }
 
-int gma_func0_init(pci_dev_t dev, struct pci_controller *hose,
-		   const void *blob, int node)
+int gma_func0_init(struct udevice *dev, const void *blob, int node)
 {
 #ifdef CONFIG_VIDEO
 	ulong start;
@@ -740,16 +739,16 @@ int gma_func0_init(pci_dev_t dev, struct pci_controller *hose,
 	int ret;
 
 	/* IGD needs to be Bus Master */
-	reg32 = x86_pci_read_config32(dev, PCI_COMMAND);
+	dm_pci_read_config32(dev, PCI_COMMAND, &reg32);
 	reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
-	x86_pci_write_config32(dev, PCI_COMMAND, reg32);
+	dm_pci_write_config32(dev, PCI_COMMAND, reg32);
 
 	/* Use write-combining for the graphics memory, 256MB */
-	base = pci_read_bar32(hose, dev, 2);
+	base = dm_pci_read_bar32(dev, 2);
 	mtrr_add_request(MTRR_TYPE_WRCOMB, base, 256 << 20);
 	mtrr_commit(true);
 
-	gtt_bar = (void *)pci_read_bar32(pci_bus_to_hose(0), dev, 0);
+	gtt_bar = (void *)dm_pci_read_bar32(dev, 0);
 	debug("GT bar %p\n", gtt_bar);
 	ret = gma_pm_init_pre_vbios(gtt_bar);
 	if (ret)
@@ -757,8 +756,8 @@ int gma_func0_init(pci_dev_t dev, struct pci_controller *hose,
 
 #ifdef CONFIG_VIDEO
 	start = get_timer(0);
-	ret = pci_run_vga_bios(dev, int15_handler, PCI_ROM_USE_NATIVE |
-			       PCI_ROM_ALLOW_FALLBACK);
+	ret = pci_run_vga_bios(dm_pci_get_bdf(dev), int15_handler,
+			       PCI_ROM_USE_NATIVE | PCI_ROM_ALLOW_FALLBACK);
 	debug("BIOS ran in %lums\n", get_timer(start));
 #endif
 	/* Post VBIOS init */

arch/x86/include/asm/arch-ivybridge/bd82x6x.h

@@ -12,8 +12,7 @@ void bd82x6x_sata_enable(pci_dev_t dev, const void *blob, int node);
 void bd82x6x_pci_init(pci_dev_t dev);
 void bd82x6x_usb_ehci_init(pci_dev_t dev);
 void bd82x6x_usb_xhci_init(pci_dev_t dev);
-int gma_func0_init(pci_dev_t dev, struct pci_controller *hose,
-		   const void *blob, int node);
+int gma_func0_init(struct udevice *dev, const void *blob, int node);
 int bd82x6x_init(void);
 
 /**