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Date:   Tue, 1 Feb 2022 14:39:20 +0000
From:   Jonathan McDowell <noodles@earth.li>
To:     Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     Ansuel Smith <ansuelsmth@gmail.com>,
        Andy Gross <agross@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/17] ARM: dts: qcom: add missing rpm regulators and
 cells for ipq8064
Message-ID: <YflGGM45F3TqERNj@earth.li>
References: <20220118012051.21691-1-ansuelsmth@gmail.com>
 <20220118012051.21691-4-ansuelsmth@gmail.com>
 <Yfhmum8BnB1JIALP@builder.lan>
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On Mon, Jan 31, 2022 at 04:46:18PM -0600, Bjorn Andersson wrote:
> On Mon 17 Jan 19:20 CST 2022, Ansuel Smith wrote:
> 
> > Add cells definition for rpm node and add missing regulators for the 4
> > regulator present on ipq8064. There regulators are controlled by rpm and
> > to correctly works gsbi4_i2c require to be NEVER disabled or rpm will
> > reject any regulator change request.
> > 
> 
> Is the SMB208 mandatory on all ipq8064 designs, or should this be pushed
> out to the device dts?

It's not; the RB3011 uses a different regulator (a TPS563900).

> > Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
> > ---
> >  arch/arm/boot/dts/qcom-ipq8064.dtsi | 35 +++++++++++++++++++++++++++++
> >  1 file changed, 35 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > index 094125605bea..824cf13dd037 100644
> > --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> > @@ -829,10 +829,45 @@ rpm: rpm@108000 {
> >  			clocks = <&gcc RPM_MSG_RAM_H_CLK>;
> >  			clock-names = "ram";
> >  
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> >  			rpmcc: clock-controller {
> >  				compatible = "qcom,rpmcc-ipq806x", "qcom,rpmcc";
> >  				#clock-cells = <1>;
> >  			};
> > +
> > +			regulators {
> > +				compatible = "qcom,rpm-smb208-regulators";
> > +
> > +				smb208_s1a: s1a {
> > +					regulator-min-microvolt = <1050000>;
> > +					regulator-max-microvolt = <1150000>;
> > +
> > +					qcom,switch-mode-frequency = <1200000>;
> > +				};
> > +
> > +				smb208_s1b: s1b {
> > +					regulator-min-microvolt = <1050000>;
> > +					regulator-max-microvolt = <1150000>;
> > +
> > +					qcom,switch-mode-frequency = <1200000>;
> > +				};
> > +
> > +				smb208_s2a: s2a {
> > +					regulator-min-microvolt = < 800000>;
> > +					regulator-max-microvolt = <1250000>;
> > +
> > +					qcom,switch-mode-frequency = <1200000>;
> > +				};
> > +
> > +				smb208_s2b: s2b {
> > +					regulator-min-microvolt = < 800000>;
> > +					regulator-max-microvolt = <1250000>;
> > +
> > +					qcom,switch-mode-frequency = <1200000>;
> > +				};
> > +			};
> >  		};
> >  
> >  		tcsr: syscon@1a400000 {
> > -- 
> > 2.33.1
> > 

J.

-- 
... "There's no money, there's no weed. It's all been replaced by a fucking
    big pile of corpses."  -- Lock, Stock and Two Smoking Barrels