Re: [RESEND, PATCH v4 2/2] dt-bindings: cpufreq: Document allwinner,sun50i-h6-operating-points
From: Rob Herring
Date: Tue Jul 09 2019 - 10:31:59 EST
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
> 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@xxxxxxxxx>
> Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
> .../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@xxxxxxxxxx>