drivers: use dev_read_addr_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_ptr instead of the dev_read_addr 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: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c
index d2801d4..139d978 100644
--- a/drivers/mtd/nand/raw/tegra_nand.c
+++ b/drivers/mtd/nand/raw/tegra_nand.c
@@ -906,7 +906,7 @@
 {
 	int err;
 
-	config->reg = (struct nand_ctlr *)dev_read_addr(dev);
+	config->reg = dev_read_addr_ptr(dev);
 	config->enabled = dev_read_enabled(dev);
 	config->width = dev_read_u32_default(dev, "nvidia,nand-width", 8);
 	err = gpio_request_by_name(dev, "nvidia,wp-gpios", 0, &config->wp_gpio,