Messages in this thread | | | Date | Tue, 9 Jul 2019 08:31:53 -0600 | From | Rob Herring <> | Subject | Re: [RESEND, PATCH v4 2/2] dt-bindings: cpufreq: Document allwinner,sun50i-h6-operating-points |
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On Wed, 12 Jun 2019 12:28:16 -0400, Yangtao Li wrote: > Allwinner Process Voltage Scaling Tables defines the voltage and > frequency value based on the speedbin blown in the efuse combination. > The sunxi-cpufreq-nvmem driver reads the efuse value from the SoC to > provide the OPP framework with required information. > This is used to determine the voltage and frequency value for each > OPP of operating-points-v2 table when it is parsed by the OPP framework. > > The "allwinner,sun50i-h6-operating-points" DT extends the > "operating-points-v2" > with following parameters: > - nvmem-cells (NVMEM area containig the speedbin information) > - opp-microvolt-<name>: voltage in micro Volts. > At runtime, the platform can pick a <name> and matching > opp-microvolt-<name> property. > HW: <name>: > sun50i-h6 speed0 speed1 speed2 > > Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> > Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> > --- > .../bindings/opp/sun50i-nvmem-cpufreq.txt | 167 ++++++++++++++++++ > 1 file changed, 167 insertions(+) > create mode 100644 Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt >
Reviewed-by: Rob Herring <robh@kernel.org>
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