ata: libata-core: Extend Samsung LPM quirk to AMD controllers

Browse source

A Samsung SSD 870 QVO 8TB connected to an AMD 600 Series chipset SATA
controller is reported to time out on STANDBY IMMEDIATE during system
suspend with med_power_with_dipm enabled. The command completes when
using max_performance instead.

The existing Samsung LPM quirk only matches ATI controllers, leaving
AMD controllers unaffected. Rename it to
ATA_QUIRK_NO_LPM_ON_ATI_AND_AMD and extend the vendor check to AMD for
the same Samsung SSD model patterns. Keep LPM behavior unchanged for
other controller vendors, including Intel.

Leave ATA_QUIRK_NO_NCQ_ON_ATI restricted to ATI, since the reported AMD
issue concerns LPM rather than NCQ.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221986
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>> ---
Link: https://lore.kernel.org/r/20260918124030.1962773-5-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>

...

This commit is contained in:

Niklas Cassel 2026-09-18 14:40:32 +02:00

parent 8d836581f9

commit e6bae5034e

2 changed files with 10 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

15

drivers/ata/libata-core.c

View file

4

include/linux/libata.h

View file