[Librem-5-dev] Power management issues

Angus Ainslie angus.ainslie at puri.sm
Thu Oct 25 06:46:04 PDT 2018


On 10/25/18 7:39 AM, Benjamin Berg wrote:
> Hi,
>
> On Thu, 2018-10-25 at 07:23 -0600, Angus Ainslie wrote:
>> The kernel will have control of the same switches that the HW kill
>> switches have control over so we can use rfkill to activate them.
>>
>> We can't read the state of the HW kill switches so they can override
>> what state rfkill thnks the HW is in.
> OK, to rephrase, that means we have two switches ("hard" and "soft") to
> power down the hardware (both need to be unblocked for usage).
Exactly
>
> In theory, that is exactly what the soft/hard block state of rfkill are
> for in the kernel. But for that to work properly, you will need to be
> able to sense the hardware switch state independently.

Yes for the dev kit we will need to hack around it.


> Benjamin

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