cpufreq on PandaBoard
Nishanth Menon
nm at ti.com
Tue Nov 19 10:01:53 EST 2013
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
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