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dm: blk: Add a easier way to create a named block device

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Add a function that automatically builds the device name given the parent
and a supplied string. Most callers will want to do this, so putting this
functionality in one place makes more sense.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2016-05-01 11:36:29 -06:00
parent 52138fd407
commit 9107c973d3
3 changed files with 37 additions and 8 deletions
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17
include/blk.h
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@@ -280,6 +280,23 @@ int blk_create_device(struct udevice *parent, const char *drv_name,
const char *name, int if_type, int devnum, int blksz,
lbaint_t size, struct udevice **devp);
/**
* blk_create_devicef() - Create a new named block device
*
* @parent: Parent of the new device
* @drv_name: Driver name to use for the block device
* @name: Name for the device (parent name is prepended)
* @if_type: Interface type (enum if_type_t)
* @devnum: Device number, specific to the interface type, or -1 to
* allocate the next available number
* @blksz: Block size of the device in bytes (typically 512)
* @size: Total size of the device in bytes
* @devp: the new device (which has not been probed)
*/
int blk_create_devicef(struct udevice *parent, const char *drv_name,
const char *name, int if_type, int devnum, int blksz,
lbaint_t size, struct udevice **devp);
/**
* blk_prepare_device() - Prepare a block device for use
*