| commit | 7b6dbd6872ca1d0c03dc0e0a7108d79c8dafa793 | [log] [tgz] |
|---|---|---|
| author | Greg Felix <gregfelixlkml@gmail.com> | Thu Jul 28 15:54:15 2005 -0400 |
| committer | Jeff Garzik <jgarzik@pobox.com> | Thu Jul 28 15:54:15 2005 -0400 |
| tree | 54160c4c0aa0970d3daa8b9a8f40c7a31f9527fe | |
| parent | 6b6a93c6876ea1c530d5d3f68e3678093a27fab0 [diff] |
libata: Check PCI sub-class code before disabling AHCI This patch adds functionality to check the PCI sub-class code of an AHCI capable device before disabling AHCI. It fixes a bug where an ICH7 sata controller is being setup by the BIOS as sub-class 1 (ide) and the AHCI control registers weren't being initialized, thus causing an IO error in piix_disable_ahci(). Signed-off-by: Gregory Felix <greg.felix@gmail.com>