From: Peng Fan <Peng.Fan@freescale.com>
Date: Tue, 10 Feb 2015 06:46:32 +0000 (+0800)
Subject: dm: introduce dev_get_addr interface
X-Git-Tag: KARO-TX6-2015-09-18~3776
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=7972211484ebdb1f5cdcc805f084dffd1f435d7d

dm: introduce dev_get_addr interface

Abstracting dev_get_addr can improve drivers that want to
get device's address.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/core/device.c b/drivers/core/device.c
index b73d3b8961..73c3e07c28 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -449,3 +449,15 @@ enum uclass_id device_get_uclass_id(struct udevice *dev)
 {
 	return dev->uclass->uc_drv->id;
 }
+
+#ifdef CONFIG_OF_CONTROL
+fdt_addr_t dev_get_addr(struct udevice *dev)
+{
+	return fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
+}
+#else
+fdt_addr_t dev_get_addr(struct udevice *dev)
+{
+	return FDT_ADDR_T_NONE;
+}
+#endif
diff --git a/include/dm/device.h b/include/dm/device.h
index 81afa8c628..7a48eb88b8 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -12,6 +12,7 @@
 #define _DM_DEVICE_H
 
 #include <dm/uclass-id.h>
+#include <fdtdec.h>
 #include <linker_lists.h>
 #include <linux/list.h>
 
@@ -351,4 +352,13 @@ int device_find_first_child(struct udevice *parent, struct udevice **devp);
  */
 int device_find_next_child(struct udevice **devp);
 
+/**
+ * dev_get_addr() - Get the reg property of a device
+ *
+ * @dev: Pointer to a device
+ *
+ * @return addr
+ */
+fdt_addr_t dev_get_addr(struct udevice *dev);
+
 #endif