6.15-stable review patch. If anyone has any objections, please let me know.
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From: Mikko Korhonen mjkorhon@gmail.com
commit a7b3b77fd111d49f8e25624e4ea1046322a57baf upstream.
Asus ROG STRIX B550-F GAMING (WI-FI) motherboard has problems on some SATA ports with at least one hard drive model (WDC WD20EFAX-68FB5N0) when LPM is enabled. Disabling LPM solves the issue.
Cc: stable@vger.kernel.org Fixes: 7627a0edef54 ("ata: ahci: Drop low power policy board type") Signed-off-by: Mikko Korhonen mjkorhon@gmail.com Link: https://lore.kernel.org/r/20250617062055.784827-1-mjkorhon@gmail.com [cassel: more detailed comment, make single line comments consistent] Signed-off-by: Niklas Cassel cassel@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/ahci.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)
--- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1458,7 +1458,23 @@ static bool ahci_broken_lpm(struct pci_d DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_MATCH(DMI_PRODUCT_VERSION, "ASUSPRO D840MB_M840SA"), }, - /* 320 is broken, there is no known good version yet. */ + /* 320 is broken, there is no known good version. */ + }, + { + /* + * AMD 500 Series Chipset SATA Controller [1022:43eb] + * on this motherboard timeouts on ports 5 and 6 when + * LPM is enabled, at least with WDC WD20EFAX-68FB5N0 + * hard drives. LPM with the same drive works fine on + * all other ports on the same controller. + */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, + "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_BOARD_NAME, + "ROG STRIX B550-F GAMING (WI-FI)"), + }, + /* 3621 is broken, there is no known good version. */ }, { } /* terminate list */ };