linux-kernel - Re: [PATCH 2/4] ARM: DT: apq8064: Add usb host support.

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Message-ID: <20140930051728.GI28481@sonymobile.com>
Date:	Mon, 29 Sep 2014 22:17:29 -0700
From:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
To:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
CC:	Kumar Gala <galak@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"broonie@...nel.org" <broonie@...nel.org>,
	"lee.jones@...aro.org" <lee.jones@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Russell King <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"arm@...nel.org" <arm@...nel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 2/4] ARM: DT: apq8064: Add usb host support.

On Mon 29 Sep 02:15 PDT 2014, Srinivas Kandagatla wrote:

> This patch adds device tree nodes to support two usb hosts on APQ8064
> SOC.
> 

Sorry for not looking at the entire series before answering patch 1.
I still think you should add all the regulators in the first patch anyways.

> +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
> @@ -263,6 +263,91 @@
>  			#address-cells	= <1>;
>  			#size-cells	= <0>;
>  
> +			pm8921_s3: pm8921-s3 {
> +				compatible	= "qcom,rpm-pm8921-smps";
> +				reg		= <QCOM_RPM_PM8921_SMPS3>;
> +
> +				regulator-min-microvolt = <1000000>;
> +				regulator-max-microvolt = <1400000>;
> +				qcom,boot-load 		= <49360>;

As it was unclear how to handle load in the driver I dropped boot-load for now.
Please leave it out until someone have added it to the driver.

> +				qcom,switch-mode-frequency = <3200000>;
> +				regulator-always-on;
> +			};
> +
> +			pm8921_l3: pm8921-l3 {
> +				compatible	= "qcom,rpm-pm8921-pldo";
> +				reg		= <QCOM_RPM_PM8921_LDO3>;
> +
> +				regulator-min-microvolt = <3050000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				qcom,boot-load = <50000>;

Dito

> +			};
> +
> +			pm8921_l23: pm8921-l23 {
> +				compatible	= "qcom,rpm-pm8921-pldo";
> +				reg		= <QCOM_RPM_PM8921_LDO23>;
> +
> +				regulator-min-microvolt = <1000000>;
> +				regulator-max-microvolt = <1800000>;
> +				qcom,boot-load = <50000>;

Dito

> +				regulator-always-on;

Why are all these "always-on"?

> +			};
> +
> +		};
> +
>  
>  		/* Temporary fixed regulator */
> -- 
> 1.9.1
> 
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