linux-kernel - [PATCH 3.16 193/305] libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9

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Message-ID: <lsq.1549201508.453668611@decadent.org.uk>
Date:   Sun, 03 Feb 2019 14:45:08 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Hans de Goede" <hdegoede@...hat.com>,
        "Jens Axboe" <axboe@...nel.dk>,
        "Diego Viola" <diego.viola@...il.com>
Subject: [PATCH 3.16 193/305] libata: Apply NOLPM quirk for SAMSUNG
 MZ7TD256HAFV-000L9

3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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

commit a435ab4f80f983c53b4ca4f8c12b3ddd3ca17670 upstream.

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: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/ata/libata-core.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4249,6 +4249,7 @@ static const struct ata_blacklist_entry
 	/* 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, },