Re: [PATCH v2] ata: ahci: Do not enable LPM if no LPM states are supported by the HBA

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On Tue, 18 Jun 2024 17:28:29 +0200, Niklas Cassel wrote:
> LPM consists of HIPM (host initiated power management) and DIPM
> (device initiated power management).
> 
> ata_eh_set_lpm() will only enable HIPM if both the HBA and the device
> supports it.
> 
> However, DIPM will be enabled as long as the device supports it.
> The HBA will later reject the device's request to enter a power state
> that it does not support (Slumber/Partial/DevSleep) (DevSleep is never
> initiated by the device).
> 
> [...]

Applied to libata/linux.git (for-6.10-fixes), thanks!

[1/1] ata: ahci: Do not enable LPM if no LPM states are supported by the HBA
      https://git.kernel.org/libata/linux/c/fa997b05

Kind regards,
-- 
Niklas Cassel <cassel@xxxxxxxxxx>





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