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Commit efb9e0f4 authored by Denis V. Lunev's avatar Denis V. Lunev Committed by Tejun Heo
Browse files

ata: enable quirk from jmicron JMB350 for JMB394 



Without the patch the kernel generates the following error.

 ata11.15: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
 ata11.15: Port Multiplier vendor mismatch '0x197b' != '0x123'
 ata11.15: PMP revalidation failed (errno=-19)
 ata11.15: failed to recover PMP after 5 tries, giving up

This patch helps to bypass this error and the device becomes
functional.

Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Cc: <linux-ide@vger.kernel.org>
Cc: stable@vger.kernel.org
parent 49c8f1ff

drivers/ata/libata-pmp.c

+5 −2
Original line number Original line Diff line number Diff line
@@ -447,8 +447,11 @@ static void sata_pmp_quirks(struct ata_port *ap) 
		 * otherwise.  Don't try hard to recover it.

		 * otherwise.  Don't try hard to recover it.

		 */

		 */

		ap->pmp_link[ap->nr_pmp_links - 1].flags |= ATA_LFLAG_NO_RETRY;

		ap->pmp_link[ap->nr_pmp_links - 1].flags |= ATA_LFLAG_NO_RETRY;

	} else if (vendor == 0x197b && devid == 0x2352) {

	} else if (vendor == 0x197b && (devid == 0x2352 || devid == 0x0325)) {

		/* chip found in Thermaltake BlackX Duet, jmicron JMB350? */

		/*

		 * 0x2352: found in Thermaltake BlackX Duet, jmicron JMB350?

		 * 0x0325: jmicron JMB394.

		 */

		ata_for_each_link(link, ap, EDGE) {

		ata_for_each_link(link, ap, EDGE) {

			/* SRST breaks detection and disks get misclassified

			/* SRST breaks detection and disks get misclassified

			 * LPM disabled to avoid potential problems

			 * LPM disabled to avoid potential problems