* [PATCH v4] ata: libata: disable LPM for WDC WD20EFAX-68FB5N0 hard drives
@ 2025-04-29 16:44 Mikko Korhonen
2025-04-30 6:35 ` Niklas Cassel
0 siblings, 1 reply; 2+ messages in thread
From: Mikko Korhonen @ 2025-04-29 16:44 UTC (permalink / raw)
To: linux-ide, linux-kernel, Damien Le Moal, Niklas Cassel; +Cc: Mikko Korhonen
Make WDC WD20EFAX-68FB5N0 hard drives work again after regression in
6.9.0 when LPM was enabled, so disable it for this model.
Fixes: 7627a0edef54 ("ata: ahci: Drop low power policy board type")
Signed-off-by: Mikko Korhonen <mjkorhon@gmail.com>
---
drivers/ata/libata-core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 773799cfd443..5c2f26945d61 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4239,6 +4239,11 @@ static const struct ata_dev_quirks_entry __ata_dev_quirks[] = {
{ "WDC WD3000JD-*", NULL, ATA_QUIRK_WD_BROKEN_LPM },
{ "WDC WD3200JD-*", NULL, ATA_QUIRK_WD_BROKEN_LPM },
+ /*
+ * This specific WD SATA-3 model has problems with LPM.
+ */
+ { "WDC WD20EFAX-68FB5N0", NULL, ATA_QUIRK_NOLPM },
+
/*
* This sata dom device goes on a walkabout when the ATA_LOG_DIRECTORY
* log page is accessed. Ensure we never ask for this log page with
--
2.47.2
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2025-04-29 16:44 [PATCH v4] ata: libata: disable LPM for WDC WD20EFAX-68FB5N0 hard drives Mikko Korhonen
2025-04-30 6:35 ` Niklas Cassel
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