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Mon, 7 Jan 2019 19:04:14 +0800 Message-ID: <1546859054.6818.126.camel@mtksdaap41> Subject: Re: [RFC RESEND PATCH 2/7] dt-bindings: soc: Add opp table on scpsys bindings From: Henry Chen To: Rob Herring Date: Mon, 7 Jan 2019 19:04:14 +0800 In-Reply-To: References: <1546438198-1677-1-git-send-email-henryc.chen@mediatek.com> <1546438198-1677-3-git-send-email-henryc.chen@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 3D2415C0AEB49D232C6ED296E50AE70C96799812009A42BA4E753082113069E82000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190107_030434_615612_5A4C2CD7 X-CRM114-Status: GOOD ( 18.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , James Liao , Ulf Hansson , Kees Cook , Weiyi Lu , "open list:THERMAL" , Stephen Boyd , Viresh Kumar , "linux-kernel@vger.kernel.org" , Fan Chen , devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, Matthias Brugger , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 2019-01-03 at 12:45 -0600, Rob Herring wrote: > On Wed, Jan 2, 2019 at 8:10 AM Henry Chen wrote: > > > > Add opp table on scpsys dt-bindings for Mediatek SoC. > > > > Signed-off-by: Henry Chen > > --- > > Documentation/devicetree/bindings/opp/mtk-opp.txt | 24 +++++++++++++ > > .../devicetree/bindings/soc/mediatek/scpsys.txt | 42 ++++++++++++++++++++++ > > 2 files changed, 66 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/opp/mtk-opp.txt > > > > diff --git a/Documentation/devicetree/bindings/opp/mtk-opp.txt b/Documentation/devicetree/bindings/opp/mtk-opp.txt > > new file mode 100644 > > index 0000000..036be1c > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/opp/mtk-opp.txt > > @@ -0,0 +1,24 @@ > > +Mediatek OPP bindings to descibe OPP nodes with level values > > + > > +OPP tables for devices on Mediatek platforms require an additional > > +platform specific level value to be specified. > > +This value is passed on to the mediatek Power Management Unit by the > > +CPU, which then takes the necessary actions to set a voltage rail > > +to an appropriate voltage based on the value passed. > > + > > +The bindings are based on top of the operating-points-v2 bindings > > +described in Documentation/devicetree/bindings/opp/opp.txt > > +Additional properties are described below. > > + > > +* OPP Table Node > > + > > +Required properties: > > +- compatible: Allow OPPs to express their compatibility. It should be: > > + "operating-points-v2-mtk-level" > > + > > +* OPP Node > > + > > +Required properties: > > +- mtk,level: On Mediatek platforms an OPP node can describe a positive value > > +representing a level that's communicated with a our power management hardware > > +which then translates it into a certain voltage on a voltage rail. > > Work with the Qcom folks and create a common level property. > > Rob Ok, I see the reply from Rajendra on https://lore.kernel.org/patchwork/patch/1027082/ I will follow the new common property, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel