From 462775c620197adaabc983ce847e5b9878ff4cb0 Mon Sep 17 00:00:00 2001 From: Bryam Vargas Date: Fri, 19 Jun 2026 21:54:02 -0500 Subject: ata: libata-core: Add NOLPM quirk for PNY CS900 1TB SSD The PNY CS900 1TB SSD (Phison PS3111-S11, DRAM-less) drops off the bus after entering Device-Initiated Slumber during idle. With the default med_power_with_dipm policy the link goes down (SStatus 1 SControl 300) and does not recover, forcing the filesystem read-only. Forcing max_performance keeps the link stable across prolonged idle. Add a NOLPM quirk so link power management is disabled for this drive specifically, leaving it intact for other devices on the host. Cc: stable@vger.kernel.org Signed-off-by: Bryam Vargas Reviewed-by: Niklas Cassel Signed-off-by: Damien Le Moal --- 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 3b6243f0f91e..c9a6eade8faf 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4295,6 +4295,9 @@ static const struct ata_dev_quirks_entry __ata_dev_quirks[] = { /* Apacer models with LPM issues */ { "Apacer AS340*", NULL, ATA_QUIRK_NOLPM }, + /* PNY CS900 (Phison PS3111-S11, DRAM-less) drops the link on DIPM */ + { "PNY CS900 1TB SSD", NULL, ATA_QUIRK_NOLPM }, + /* Silicon Motion models with LPM issues */ { "MD619HXCLDE3TC", "TCVAID", ATA_QUIRK_NOLPM }, { "MD619GXCLDE3TC", "TCV35D", ATA_QUIRK_NOLPM }, -- cgit v1.2.3