libata: disable LPM for Crucial BX100 SSD 500GB drive

BugLink: http://bugs.launchpad.net/bugs/1759655
commit b17e5729a630d8326a48ec34ef02e6b4464a6aef upstream.

After Laptop Mode Tools starts to use min_power for LPM, a user found
out Crucial BX100 SSD can't get mounted.

Crucial BX100 SSD 500GB drive don't work well with min_power. This also
happens to med_power_with_dipm.

So let's disable LPM for Crucial BX100 SSD 500GB drive.

BugLink: https://bugs.launchpad.net/bugs/1726930
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 28cad49fc846d12b592cb67bb5c6d54b2a4c3335..cb789f8849aee228eb19387b2df8db83a293920a 100644 (file)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4530,6 +4530,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
        { "PIONEER DVD-RW  DVR-212D",   NULL,   ATA_HORKAGE_NOSETXFER },
        { "PIONEER DVD-RW  DVR-216D",   NULL,   ATA_HORKAGE_NOSETXFER },
 
+       /* Crucial BX100 SSD 500GB has broken LPM support */
+       { "CT500BX100SSD1",             "MU02", ATA_HORKAGE_NOLPM },
+
        /* The 512GB version of the MX100 has both queued TRIM and LPM issues */
        { "Crucial_CT512MX100*",        NULL,   ATA_HORKAGE_NO_NCQ_TRIM |
                                                ATA_HORKAGE_ZERO_AFTER_TRIM |