dm: blk: Allow finding block devices without probing
Sometimes it is useful to be able to find a block device without also
probing it. Add a function for this as well as the associated test.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index af3c35f..8b6b28d 100644
--- a/drivers/block/blk-uclass.c
+++ b/drivers/block/blk-uclass.c
@@ -363,7 +363,7 @@
} while (1);
}
-int blk_get_device(int if_type, int devnum, struct udevice **devp)
+int blk_find_device(int if_type, int devnum, struct udevice **devp)
{
struct uclass *uc;
struct udevice *dev;
@@ -379,13 +379,24 @@
if_type, devnum, dev->name, desc->if_type, desc->devnum);
if (desc->if_type == if_type && desc->devnum == devnum) {
*devp = dev;
- return device_probe(dev);
+ return 0;
}
}
return -ENODEV;
}
+int blk_get_device(int if_type, int devnum, struct udevice **devp)
+{
+ int ret;
+
+ ret = blk_find_device(if_type, devnum, devp);
+ if (ret)
+ return ret;
+
+ return device_probe(*devp);
+}
+
unsigned long blk_dread(struct blk_desc *block_dev, lbaint_t start,
lbaint_t blkcnt, void *buffer)
{