On Tue, Apr 15, 2014 at 10:27:11PM -0700, Jacob Pan wrote: > On Intel Valleyview SoC, SATA device sleep is not reliable. When > DEVSLP is attempted on certain SSDs, port_devslp write would fail > and result in malfunction of AHCI controller. AHCI controller may > be not shown in PCI enumeration after reset. Complete power source > removal may be required to recover from this failure. So we blacklist > this device and override host device reported capabilities such that > device LPM will only attempt slumber but not DEVSLP. > > Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx> > Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx> Applied to libata/for-3.15-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
