From: Maciej Rutecki <maciej.rutecki@gmail.com>
Date: Thu, 19 Mar 2009 23:06:46 +0000 (+0100)
Subject: ahci: Blacklist HP Compaq 6720s that spins off disks during ACPI power off
X-Git-Tag: v2.6.30-rc1~669^2~15
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d2f9c0614e664708978c53eca4a5963e92830e88;p=karo-tx-linux.git

ahci: Blacklist HP Compaq 6720s that spins off disks during ACPI power off

Blacklist HP Compaq 6720s so that it doesn't play a "spin down,
spin up, spin down" ping-pong with the hard disk during system
power off.

Signed-off-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 98d7a9fbb7ed..699789bc9ea6 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2565,6 +2565,15 @@ static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
 			/* PCI slot number of the controller */
 			.driver_data = (void *)0x1FUL,
 		},
+		{
+			.ident = "HP Compaq 6720s",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"),
+			},
+			/* PCI slot number of the controller */
+			.driver_data = (void *)0x1FUL,
+		},
 
 		{ }	/* terminate list */
 	};