Subject: cpufreq on PandaBoard

From: [email-masked] (Nishanth Menon)
Date: Tue, 19 Nov 2013 09:01:53 -0600

On 11/19/2013 08:59 AM, Ben Gamari wrote:
> 
> Booting a PandaBoard with a recent kernel and devicetree appears to be a
> rather messy process. There are dozens of devicetree-related warnings
> spewed on boot (many pertaining to missing regulators). At the moment,
> however, I'm most interested in this,
> 
>     cpufreq-cpu0 cpufreq-cpu0.0: no of_node; not parsing pinctrl DT
>     cpu cpu0: dummy supplies not allowed
>     cpufreq_cpu0: failed to get cpu0 regulator: -19
>     cpufreq_cpu0: failed to get cpu0 clock: -2
>     cpufreq-cpu0: probe of cpufreq-cpu0.0 failed with error -2
> 
> What is the status of cpufreq on the PandaBoard? Is this expected to
> work?
> 
> More generally, if one wants a fairly recent kernel supporting the
> PandaBoard's hardware what kernel tree should be used? Is mainline not
> yet appropriate? Is linux-next preferred? Perhaps a ti-maintained tree?
for upstream: Wait for the clock nodes to get merged.. we are at v9 of
discussion thread here[1].

for ti-maintained tree, you need to talk to TI support folks for
appropriate kernel for your product line.

[1] http://marc.info/?t=138271672500002&r=1&w=2
-- 
Regards,
Nishanth Menon