lkml.org 
[lkml]   [2018]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v1 1/5] dt-binding: rtci-pcf8523: add quartz_load property
On 13/09/2018 22:44:12+0200, Sam Ravnborg wrote:
> > The boolean properties usually don't work well for RTCs because people
> > usually want to keep any previous configuration that may have been done
> > at the factory or in the bootloader so I would use:
> >
> > nxp,quartz_load_fF and this would be either 7000 or 12500.
> We had is implmented like this (using pF) in the beginning but
> then went for the simpler property.
> Will add a fF property as you suggest and avoid breaking the existing drivers.
> We will check a few of the boards to see if the current configuration
> of the pcf8523 driver looks wrong, and if so we will print
> the warnings as suggested.
>
> I think the above covers feedback on all patches.
> And thanks for the feedback!
>

Hint: look at the cubox-i and the hummingboard schematics. I'm
definitely not an analog expert but the two capacitors on the cubox-i
are making me think that the setting should be different from the
hummingboard.

--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

\
 
 \ /
  Last update: 2018-09-13 22:53    [W:0.074 / U:0.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site