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Commit 104ff59a authored by Simon Gaiser's avatar Simon Gaiser Committed by Damien Le Moal
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ata: ahci: Add Tiger Lake UP{3,4} AHCI controller

Mark the Tiger Lake UP{3,4} AHCI controller as "low_power". This enables
S0ix to work out of the box. Otherwise this isn't working unless the
user manually sets /sys/class/scsi_host/*/link_power_management_policy.

Intel lists a total of 4 SATA controller IDs in [1] for those mobile
PCHs. This commit just adds the "AHCI" variant since I only tested
those.

[1]: https://cdrdv2.intel.com/v1/dl/getContent/631119



Signed-off-by: default avatarSimon Gaiser <simon@invisiblethingslab.com>
CC: stable@vger.kernel.org
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
parent ead08957
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