Messages in this thread | | | Subject | Re: [PATCH 1/2] scsi: ufs: Add DeepSleep feature | From | Adrian Hunter <> | Date | Mon, 5 Oct 2020 14:06:42 +0300 |
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On 5/10/20 12:51 pm, Avri Altman wrote: >> >> >> On 5/10/20 11:02 am, Avri Altman wrote: >>> HI, >>> >>>> Drivers that wish to support DeepSleep need to set a new capability flag >>>> UFSHCD_CAP_DEEPSLEEP and provide a hardware reset via the existing >>>> ->device_reset() callback. >>> I would expect that this capability controls sending SSU 4, but it only controls >> the sysfs entry? >> >> The sysfs entry is the only way to request DeepSleep. > Some chipset vendors use their own modules, or even the device tree > to set their default rpm_lvl / spm_lvl.
I would not expect them to set it wrongly but what are you suggesting?
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