From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Sun, 18 Feb 2018 22:17:09 +0800
Subject: [PATCH] libata: disable LPM for Crucial BX100 SSD 500GB drive
Patch-mainline: v4.16-rc7
Git-commit: b17e5729a630d8326a48ec34ef02e6b4464a6aef
References: bsc#1077989
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
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/ata/libata-core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 28cad49fc846..cb789f8849ae 100644
--- 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 |
--
2.12.3