6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Baumann <daniel@xxxxxxxxxx>
commit cc77e2ce187d26cc66af3577bf896d7410eb25ab upstream.
Disabling link power management on Samsung SSD 870 QVO drives
to make them work again after the switch of the default LPM
policy to low.
Testing so far has shown that regular Samsung SSD 870
(the non QVO variants) do not need it and work fine with
the default LPM policy.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 7627a0edef54 ("ata: ahci: Drop low power policy board type")
Signed-off-by: Daniel Baumann <daniel@xxxxxxxxxx>
Link: https://lore.kernel.org/linux-ide/ac64a484-022c-42a0-95bc-1520333b1536@xxxxxxxxxx/
Signed-off-by: Niklas Cassel <cassel@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/ata/libata-core.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4143,6 +4143,10 @@ static const struct ata_dev_quirks_entry
{ "Samsung SSD 860*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
ATA_QUIRK_ZERO_AFTER_TRIM |
ATA_QUIRK_NO_NCQ_ON_ATI },
+ { "Samsung SSD 870 QVO*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
+ ATA_QUIRK_ZERO_AFTER_TRIM |
+ ATA_QUIRK_NO_NCQ_ON_ATI |
+ ATA_QUIRK_NOLPM },
{ "Samsung SSD 870*", NULL, ATA_QUIRK_NO_NCQ_TRIM |
ATA_QUIRK_ZERO_AFTER_TRIM |
ATA_QUIRK_NO_NCQ_ON_ATI },
