linux-kernel - [PATCH AUTOSEL 4.18 071/126] libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9

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Date:   Wed, 31 Oct 2018 19:06:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Diego Viola <diego.viola@...il.com>, Jens Axboe <axboe@...nel.dk>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.18 071/126] libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9

From: Diego Viola <diego.viola@...il.com>

[ Upstream commit a435ab4f80f983c53b4ca4f8c12b3ddd3ca17670 ]

med_power_with_dipm causes my T450 to freeze with a SAMSUNG
MZ7TD256HAFV-000L9 SSD (firmware DXT02L5Q).

Switching the LPM to max_performance fixes this issue.

Acked-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Diego Viola <diego.viola@...il.com>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/ata/libata-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 99bf0c0394f8..321a9579556d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4552,6 +4552,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	/* These specific Samsung models/firmware-revs do not handle LPM well */
 	{ "SAMSUNG MZMPC128HBFU-000MV", "CXM14M1Q", ATA_HORKAGE_NOLPM, },
 	{ "SAMSUNG SSD PM830 mSATA *",  "CXM13D1Q", ATA_HORKAGE_NOLPM, },
+	{ "SAMSUNG MZ7TD256HAFV-000L9", "DXT02L5Q", ATA_HORKAGE_NOLPM, },
 
 	/* devices that don't properly handle queued TRIM commands */
 	{ "Micron_M500IT_*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
-- 
2.17.1