[U-Boot] [PATCH V4 09/10] dm: core: device: add function: dev_get_uclass_name()

[Przemyslaw Marczak]

This commit extends the driver model device's API by function:
- dev_get_uclass_name()

And this function returns the device's uclass driver name if:
- given dev pointer, is non_NULL
otherwise, the NULL pointer is returned.

Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
Cc: Simon Glass <sjg at chromium.org>
---
Changes V4:
- new commit
---
 drivers/core/device.c |  8 ++++++++
 include/dm/device.h   | 10 ++++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/core/device.c b/drivers/core/device.c
index d024abb..df81b8e 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -512,6 +512,14 @@ enum uclass_id device_get_uclass_id(struct udevice *dev)
 	return dev->uclass->uc_drv->id;
 }
 
+const char *dev_get_uclass_name(struct udevice *dev)
+{
+	if (!dev)
+		return NULL;
+
+	return dev->uclass->uc_drv->name;
+}
+
 #ifdef CONFIG_OF_CONTROL
 fdt_addr_t dev_get_addr(struct udevice *dev)
 {
diff --git a/include/dm/device.h b/include/dm/device.h
index 049cb2f..18296bb 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -299,6 +299,16 @@ const void *dev_get_driver_ops(struct udevice *dev);
  */
 enum uclass_id device_get_uclass_id(struct udevice *dev);
 
+/*
+ * dev_get_uclass_name() - return the uclass name of a device
+ *
+ * This checks that dev is not NULL.
+ *
+ * @dev:	Device to check
+ * @return  pointer to the uclass name for the device
+ */
+const char *dev_get_uclass_name(struct udevice *dev);
+
 /**
  * device_get_child() - Get the child of a device by index
  *
-- 
1.9.1