dm: core: add dev_read_addr_ptr()
The dev_read_addr_ptr() mimics the behaviour of the devfdt_get_addr_ptr(),
retrieving the first address of the node's reg-property and returning
it as a pointer (or NULL on failure).
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/read.c b/drivers/core/read.c
index 6acb333..065589a 100644
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -57,6 +57,13 @@
return dev_read_addr_index(dev, 0);
}
+void *dev_read_addr_ptr(struct udevice *dev)
+{
+ fdt_addr_t addr = dev_read_addr(dev);
+
+ return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)addr;
+}
+
fdt_addr_t dev_read_addr_size(struct udevice *dev, const char *property,
fdt_size_t *sizep)
{
diff --git a/include/dm/read.h b/include/dm/read.h
index 49d69c9..e7f7125 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -113,6 +113,16 @@
fdt_addr_t dev_read_addr(struct udevice *dev);
/**
+ * dev_read_addr_ptr() - Get the reg property of a device
+ * as a pointer
+ *
+ * @dev: Device to read from
+ *
+ * @return pointer or NULL if not found
+ */
+void *dev_read_addr_ptr(struct udevice *dev);
+
+/**
* dev_read_addr_size() - get address and size from a device property
*
* This does no address translation. It simply reads an property that contains
@@ -417,6 +427,11 @@
return devfdt_get_addr(dev);
}
+static inline void *dev_read_addr_ptr(struct udevice *dev)
+{
+ return devfdt_get_addr_ptr(dev);
+}
+
static inline fdt_addr_t dev_read_addr_size(struct udevice *dev,
const char *propname,
fdt_size_t *sizep)