drivers: use dev_read_addr_index_ptr when cast to pointer

The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU
can expect 64-bit data from the device tree parser, so use
dev_read_addr_index_ptr instead of the dev_read_addr_index function
in the various files in the drivers directory that cast to a pointer.
As we are there also streamline the error response to -EINVAL on return.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mtd/nand/raw/cortina_nand.c b/drivers/mtd/nand/raw/cortina_nand.c
index 88798f2..8de3573 100644
--- a/drivers/mtd/nand/raw/cortina_nand.c
+++ b/drivers/mtd/nand/raw/cortina_nand.c
@@ -1175,8 +1175,8 @@
 	int ecc_strength;
 
 	info->reg = (struct nand_ctlr *)dev_read_addr(dev);
-	info->dma_glb = (struct dma_global *)dev_read_addr_index(dev, 1);
-	info->dma_nand = (struct dma_ssp *)dev_read_addr_index(dev, 2);
+	info->dma_glb = dev_read_addr_index_ptr(dev, 1);
+	info->dma_nand = dev_read_addr_index_ptr(dev, 2);
 	info->config.enabled = dev_read_enabled(dev);
 	ecc_strength = dev_read_u32_default(dev, "nand-ecc-strength", 16);
 	info->flash_base =
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c
index b46bdeb..bec8d67 100644
--- a/drivers/net/dm9000x.c
+++ b/drivers/net/dm9000x.c
@@ -651,7 +651,7 @@
 
 	pdata->iobase = dev_read_addr_index(dev, 0);
 	db->base_io = (void __iomem *)pdata->iobase;
-	db->base_data = (void __iomem *)dev_read_addr_index(dev, 1);
+	db->base_data = dev_read_addr_index_ptr(dev, 1);
 
 	return 0;
 }
diff --git a/drivers/net/dwmac_meson8b.c b/drivers/net/dwmac_meson8b.c
index ddbaa87..871171e 100644
--- a/drivers/net/dwmac_meson8b.c
+++ b/drivers/net/dwmac_meson8b.c
@@ -41,8 +41,8 @@
 {
 	struct dwmac_meson8b_plat *pdata = dev_get_plat(dev);
 
-	pdata->regs = (void *)dev_read_addr_index(dev, 1);
-	if ((fdt_addr_t)pdata->regs == FDT_ADDR_T_NONE)
+	pdata->regs = dev_read_addr_index_ptr(dev, 1);
+	if (!pdata->regs)
 		return -EINVAL;
 
 	pdata->dwmac_setup = (void *)dev_get_driver_data(dev);
diff --git a/drivers/pci/pcie_dw_meson.c b/drivers/pci/pcie_dw_meson.c
index 07da9fa..f953797 100644
--- a/drivers/pci/pcie_dw_meson.c
+++ b/drivers/pci/pcie_dw_meson.c
@@ -337,15 +337,15 @@
 	struct meson_pcie *priv = dev_get_priv(dev);
 	int ret;
 
-	priv->dw.dbi_base = (void *)dev_read_addr_index(dev, 0);
+	priv->dw.dbi_base = dev_read_addr_index_ptr(dev, 0);
 	if (!priv->dw.dbi_base)
-		return -ENODEV;
+		return -EINVAL;
 
 	dev_dbg(dev, "ELBI address is 0x%p\n", priv->dw.dbi_base);
 
-	priv->meson_cfg_base = (void *)dev_read_addr_index(dev, 1);
+	priv->meson_cfg_base = dev_read_addr_index_ptr(dev, 1);
 	if (!priv->meson_cfg_base)
-		return -ENODEV;
+		return -EINVAL;
 
 	dev_dbg(dev, "CFG address is 0x%p\n", priv->meson_cfg_base);
 
diff --git a/drivers/pci/pcie_dw_rockchip.c b/drivers/pci/pcie_dw_rockchip.c
index 9322e73..624ca1c 100644
--- a/drivers/pci/pcie_dw_rockchip.c
+++ b/drivers/pci/pcie_dw_rockchip.c
@@ -353,15 +353,15 @@
 	struct rk_pcie *priv = dev_get_priv(dev);
 	int ret;
 
-	priv->dw.dbi_base = (void *)dev_read_addr_index(dev, 0);
+	priv->dw.dbi_base = dev_read_addr_index_ptr(dev, 0);
 	if (!priv->dw.dbi_base)
-		return -ENODEV;
+		return -EINVAL;
 
 	dev_dbg(dev, "DBI address is 0x%p\n", priv->dw.dbi_base);
 
-	priv->apb_base = (void *)dev_read_addr_index(dev, 1);
+	priv->apb_base = dev_read_addr_index_ptr(dev, 1);
 	if (!priv->apb_base)
-		return -ENODEV;
+		return -EINVAL;
 
 	dev_dbg(dev, "APB address is 0x%p\n", priv->apb_base);
 
diff --git a/drivers/watchdog/sbsa_gwdt.c b/drivers/watchdog/sbsa_gwdt.c
index f43cd3f..96d0466 100644
--- a/drivers/watchdog/sbsa_gwdt.c
+++ b/drivers/watchdog/sbsa_gwdt.c
@@ -98,13 +98,13 @@
 {
 	struct sbsa_gwdt_priv *priv = dev_get_priv(dev);
 
-	priv->reg_control = (void __iomem *)dev_read_addr_index(dev, 0);
-	if (IS_ERR(priv->reg_control))
-		return PTR_ERR(priv->reg_control);
+	priv->reg_control = dev_read_addr_index_ptr(dev, 0);
+	if (!priv->reg_control)
+		return -EINVAL;
 
-	priv->reg_refresh = (void __iomem *)dev_read_addr_index(dev, 1);
-	if (IS_ERR(priv->reg_refresh))
-		return PTR_ERR(priv->reg_refresh);
+	priv->reg_refresh = dev_read_addr_index_ptr(dev, 1);
+	if (!priv->reg_refresh)
+		return -EINVAL;
 
 	return 0;
 }