On Wed, Feb 15, 2012 at 11:18 AM, Jeff Garzik [off-list ref] wrote:

On 02/15/2012 01:31 PM, Tejun Heo wrote:

quoted

The problem is that there's no way to identify the controller in
question, so we can't do this automatically, so might just as well do
it in the simplest way for now.  :(

See ahci_devtype[] and ahci_port_info[] in ahci_platform.c for how to do
this.  Brian would not have to tweak the driver out of tree as claimed; we
put all changes in tree, and the platform calls itself "spec-strict-ahci" or
whatever string you prefer.

OK, so can it seems I would add a flag in include/linux/libata.h that
can be added to a new entry in ahci_port_info[]? It seems a little
awkward to put in "libata.h", plus I'm not sure if all the flags have
direct meaning to ATA or if they can be AHCI-specific.

Brian