From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring 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 Message-ID: <20190709143153.GA30638@bogus> References: <20190612162816.31713-1-tiny.windzz@gmail.com> <20190612162816.31713-3-tiny.windzz@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190612162816.31713-3-tiny.windzz@gmail.com> Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: devicetree@vger.kernel.org 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-: voltage in micro Volts. > At runtime, the platform can pick a and matching > opp-microvolt- property. > HW: : > sun50i-h6 speed0 speed1 speed2 > > Signed-off-by: Yangtao Li > Acked-by: Maxime Ripard > --- > .../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