| commit | 7fab72f85d862572ed3281860dc550b7e737ac52 | [log] [tgz] |
|---|---|---|
| author | Doug Berger <opendmb@gmail.com> | Wed Jun 21 16:20:13 2017 -0700 |
| committer | Tejun Heo <tj@kernel.org> | Thu Jun 22 16:12:59 2017 -0400 |
| tree | d45443b96ebe96e3b633b822cae8acb02be9e77a | |
| parent | ef0da1bf767d9e557c6375c7066717eead54cb15 [diff] |
libata: Add the AHCI_HFLAG_NO_WRITE_TO_RO flag While most hardware will simply ignore a write to a read-only register, some hardware will signal an abort if this occurs. This commit introduces the flag AHCI_HFLAG_NO_WRITE_TO_RO to prevent the AHCI library from attempting to write to the HOST_CAP, HOST_CAP2, and HOST_PORTS_IMPL registers which may be read-only. Signed-off-by: Doug Berger <opendmb@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>