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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@gmail.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@redhat.com>
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ben Hutchings <ben@decadent.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, },
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