[PATCH v1 02/10] ufs: host: mediatek: Correct clock scaling with PM QoS flow

Bart Van Assche bvanassche at acm.org
Mon Sep 22 12:21:21 PDT 2025


On 9/22/25 1:39 AM, Peter Wang (王信友) wrote:
> However, after resume, pm_qos is not re-acquired if it was released
> during the previous suspend. Therefore, if we set the gear to a high
> value for performance, this could be impacted. But in the UFS core,
> the gear should be set to low during suspend, so there is no need to
> re-acquire pm_qos after resume.

Hi Peter,

Thanks for the clarification, this is appreciated.

However, the following is not yet clear to me:
(1) Why this change is necessary.
(2) Why this change has been implemented in the MediaTek driver instead
     of the UFS core.

Thanks,

Bart.




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