[Letux-kernel] [RFC PATCH 0/3] Enable 1GHz support on omap36xx

H. Nikolaus Schaller hns at goldelico.com
Tue Sep 10 21:55:32 CEST 2019


Ok,

> Am 10.09.2019 um 20:51 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> 
>>>> it, but then I got some nasty errors and crashes.
>>> 
>>> I have done the same but not (yet) seen a crash or error. Maybe you had
>>> a typo?
>> 
>> Can you send me an updated patch?  I'd like to try to get where you
>> are that doesn't crash.
> 
> Yes, as soon as I have access.

it turns out that my patch breaks cpufreq completely...
So it looks as if *I* have a typo :)

Hence I am likely running at constant speed and the
VDD1 regulator is fixed a 1.200V.

root at letux:~# dmesg|fgrep opp
[    2.426208] cpu cpu0: opp_parse_supplies: Invalid number of elements in opp-microvolt property (6) with supplies (1)
[    2.438140] cpu cpu0: _of_add_opp_table_v2: Failed to add OPP, -22
root at letux:~# cat /sys/class/regulator/regulator.8/microvolts 
1200000
root at letux:~# 

The error message looks as if we have to enable multi_regulator.
And that may need to rename cpu0-supply to vdd-supply (unless the
names can be configured).

BR,
Nikolaus



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