Messages in this thread | | | Date | Wed, 1 Aug 2018 10:39:46 -0700 | From | Matthias Kaehlcke <> | Subject | Re: [PATCH v5 09/12] dt-bindings: misc: add bindings for throttler |
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Hi Chanwoo,
On Wed, Aug 01, 2018 at 05:27:57PM +0900, Chanwoo Choi wrote: > Hi Matthias, > > On 2018년 07월 04일 08:47, Matthias Kaehlcke wrote: > > The Throttler is used for non-thermal throttling of system components > > like CPUs or devfreq devices. > > > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > > If possible, I hope the more detailed example for "cpu0_opp03, &cpu1_opp02, &gpu_opp03" > because I'm confusing the meaning of 'cpu0_opp03' phandle.
I omitted the OPP definitions to avoid cluttering the example. I'm happy to add them if DT folks also think it would add value.
> cpu0_opp03 indicates the only one specific OPP entry among set of > OPP entries of CPU0 cpufreq? or cpu0_opp03 indicates the set of OPP > entries for CPU0 cpufreq ?
cpu0_opp03 and the other phandles are specific OPP entries, that indicate the throttler which frequencies/OPPs should be used for throttling. For devices/CPUs with multiple levels of throttling multiple entries from its OPP set are listed. In the example a single level of throttling is used for all devices/CPUs.
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