On Wed, 20 Jan 2021 02:04:20 -0800, Can Guo wrote:
> This series is made based on 5.12/scsi-queue branch.
>
> Current devfreq framework allows sysfs nodes like governor, min_freq and max_freq to be changed even after devfreq device is suspended.
> Meanwhile, devfreq_suspend_device() cannot/wouldn't synchronize clock scaling which has already been invoked through devfreq sysfs nodes menitioned above.
> It means that clock scaling invoked through these devfreq sysfs nodes can happen at any time regardless of the state of UFS host and/or device.
> We need to control and synchronize clock scaling in this scenario.
>
> [...]
Applied to 5.12/scsi-queue, thanks!
[1/3] scsi: ufs: Protect some contexts from unexpected clock scaling
https://git.kernel.org/mkp/scsi/c/0e9d4ca43ba8
[2/3] scsi: ufs: Refactor ufshcd_init/exit_clk_scaling/gating()
https://git.kernel.org/mkp/scsi/c/4543d9d78227
[3/3] scsi: ufs: Revert "Make sure clk scaling happens only when HBA is runtime ACTIVE"
https://git.kernel.org/mkp/scsi/c/b02d51afca00
--
Martin K. Petersen Oracle Linux Engineering
