tree 271008f521aad643de4c1fa9909920698ba13a81
parent 5c56176318c8a602fa78813ac273f16a10278a2d
author Simon Glass <sjg@chromium.org> 1497497326 -0600
committer Simon Glass <sjg@chromium.org> 1499789299 -0600

dm: ahci: Add a driver for SCSI on AHCI

Some AHCI drivers use SCSI under the hood. Rather than making the AHCI
driver be in the SCSI uclass it makes sense to have the AHCI device create
a SCSI device as a child. That way we can handle any AHCI-specific
operations rather than trying to pretend tha the device is just SCSI.

To handle this we need to provide a way for AHCI drivers to bind a SCSI
device as its child, and probe it. Add functions for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>