disp: msm: add physical address info when dumping display registers

In dumping display registers, physical address will be appended after
each block name. This is to support register compare between kernel
and UEFI.

Change-Id: Ic20d3e2bd4c95aa7c71c4b646a149f7e83ad731a
Signed-off-by: Yu Wu <zwy@codeaurora.org>

msm/msm_drv.c

@@ -301,6 +301,24 @@ unsigned long msm_iomap_size(struct platform_device *pdev, const char *name)
 	return resource_size(res);
 }
 
+unsigned long msm_get_phys_addr(struct platform_device *pdev, const char *name)
+{
+	struct resource *res;
+
+	if (!name) {
+		dev_err(&pdev->dev, "invalid block name\n");
+		return 0;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to get memory resource: %s\n", name);
+		return 0;
+	}
+
+	return res->start;
+}
+
 void msm_iounmap(struct platform_device *pdev, void __iomem *addr)
 {
 	devm_iounmap(&pdev->dev, addr);