[U-Boot] [PATCH v3 3/4] core: Add dev_{disable,enable}_by_path

[Simon Glass]

On 26 June 2018 at 00:46, Mario Six <mario.six at gdsys.cc> wrote:
> We cannot use device structures to disable devices, since getting
> them with the API functions would bind and activate the device, which
> would fail if the underlying device does not exist.
>
> ---
>
> Hence, add a function to disable devices by path in a live device tree.
>
> Signed-off-by: Mario Six <mario.six at gdsys.cc>
>
> v2 -> v3:
> * Renamed res to ret
> * Introduced device_find_by_ofnode() function
> * Fixed error handling in some places
>
> v1 -> v2:
> * Simplified np_to_ofnode(of_find_node_by_path(path)) to ofnode_path(path)
> * Switched to returning -ENOSYS if livetree is not enabled
>
> ---
>  drivers/core/device.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  include/dm/device.h   | 16 +++++++++++
>  2 files changed, 94 insertions(+)
>

Reviewed-by: Simon Glass <sjg at chromium.org>