lkml.org 
[lkml]   [2018]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v3 1/2] regulator: dt-bindings: add QCOM RPMh regulator bindings
Hi,

On Wed, May 30, 2018 at 2:37 AM, Mark Brown <broonie@kernel.org> wrote:
> On Tue, May 29, 2018 at 10:30:33PM -0700, Doug Anderson wrote:
>> On Wed, May 23, 2018 at 8:56 AM, Mark Brown <broonie@kernel.org> wrote:
>
>> > Yes, that's definitely not what's expected but it's unfortunately what
>> > the firmware chose to implement so we may well be stuck with it
>> > unfortunately.
>
>> We're not really stuck with it if we do what I was suggesting. I was
>> suggesting that every time we disable the regulator in Linux we have
>> Linux vote for the lowest voltage it's comfortable with. Linux keeps
>> track of the true voltage that the driver wants and will always change
>> its vote back to that before enabling. Thus (assuming Linux is OK
>> with 1.2 V - 1.4 V for a rail):
>
> That's pretty much what it should do anyway with normally designed
> hardware.

I guess the question is: do we insist that the driver include this
workaround, or are we OK with letting the hardware behave as the
hardware does?

-Doug

\
 
 \ /
  Last update: 2018-05-30 16:47    [W:0.069 / U:0.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site