From: Rob Herring <robh@kernel.org>
To: Yangtao Li <tiny.windzz@gmail.com>
Cc: vireshk@kernel.org, nm@ti.com, sboyd@kernel.org,
robh+dt@kernel.org, mark.rutland@arm.com,
maxime.ripard@bootlin.com, wens@csie.org, rjw@rjwysocki.net,
davem@davemloft.net, mchehab+samsung@kernel.org,
gregkh@linuxfoundation.org, linus.walleij@linaro.org,
nicolas.ferre@microchip.com, paulmck@linux.ibm.com,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Yangtao Li <tiny.windzz@gmail.com>
Subject: Re: [RESEND, PATCH v4 2/2] dt-bindings: cpufreq: Document allwinner,sun50i-h6-operating-points
Date: Tue, 9 Jul 2019 08:31:53 -0600 [thread overview]
Message-ID: <20190709143153.GA30638@bogus> (raw)
In-Reply-To: <20190612162816.31713-3-tiny.windzz@gmail.com>
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>
next prev parent reply other threads:[~2019-07-09 14:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 16:28 [RESEND, PATCH v4 0/2] cpufreq: Add sunxi nvmem based CPU scaling driver Yangtao Li
2019-06-12 16:28 ` [RESEND, PATCH v4 1/2] cpufreq: Add sun50i " Yangtao Li
2019-06-12 16:28 ` [RESEND, PATCH v4 2/2] dt-bindings: cpufreq: Document allwinner,sun50i-h6-operating-points Yangtao Li
2019-07-09 14:31 ` Rob Herring [this message]
2019-06-12 16:33 ` [RESEND, PATCH v4 0/2] cpufreq: Add sunxi nvmem based CPU scaling driver Frank Lee
2019-07-10 9:15 ` Viresh Kumar
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