[PATCH 3.13 108/172] ata: enable quirk from jmicron JMB350 for JMB394
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2014-03-04 21:09:16
Also in:
lkml, stable
3.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: "Denis V. Lunev" <redacted> commit efb9e0f4f43780f0ae0c6428d66bd03e805c7539 upstream. 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: Denis V. Lunev <redacted> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/ata/libata-pmp.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c@@ -447,8 +447,11 @@ static void sata_pmp_quirks(struct ata_p * otherwise. Don't try hard to recover it. */ ap->pmp_link[ap->nr_pmp_links - 1].flags |= ATA_LFLAG_NO_RETRY; - } else if (vendor == 0x197b && devid == 0x2352) { - /* chip found in Thermaltake BlackX Duet, jmicron JMB350? */ + } else if (vendor == 0x197b && (devid == 0x2352 || devid == 0x0325)) { + /* + * 0x2352: found in Thermaltake BlackX Duet, jmicron JMB350? + * 0x0325: jmicron JMB394. + */ ata_for_each_link(link, ap, EDGE) { /* SRST breaks detection and disks get misclassified * LPM disabled to avoid potential problems