From: Simon Glass <sjg@chromium.org>
Date: Mon, 25 Apr 2022 05:31:03 +0000 (-0600)
Subject: dm: blk: Add a function to return the device type
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=87571b7f2077c567f8d050abe60ff5578f0b7cd8;p=u-boot.git

dm: blk: Add a function to return the device type

Use the uclass name to get the device type for a block device.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index f1e4a85646..29f355fa15 100644
--- a/drivers/block/blk-uclass.c
+++ b/drivers/block/blk-uclass.c
@@ -509,6 +509,13 @@ int blk_get_from_parent(struct udevice *parent, struct udevice **devp)
 	return 0;
 }
 
+const char *blk_get_devtype(struct udevice *dev)
+{
+	struct udevice *parent = dev_get_parent(dev);
+
+	return uclass_get_name(device_get_uclass_id(parent));
+};
+
 int blk_find_max_devnum(enum if_type if_type)
 {
 	struct udevice *dev;
diff --git a/include/blk.h b/include/blk.h
index dbe9ae219d..9503369db8 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -433,6 +433,14 @@ int blk_select_hwpart(struct udevice *dev, int hwpart);
  */
 int blk_get_from_parent(struct udevice *parent, struct udevice **devp);
 
+/**
+ * blk_get_devtype() - Get the device type of a block device
+ *
+ * @dev:	Block device to check
+ * Return: device tree, i.e. the uclass name of its parent, e.g. "mmc"
+ */
+const char *blk_get_devtype(struct udevice *dev);
+
 /**
  * blk_get_by_device() - Get the block device descriptor for the given device
  * @dev:	Instance of a storage device