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Message-ID: <20140930151437.GM28481@sonymobile.com>
Date: Tue, 30 Sep 2014 08:14:39 -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 v2 1/4] ARM: dts: apq8064: add RPM regulators support
On Tue 30 Sep 07:09 PDT 2014, Srinivas Kandagatla wrote:
> This patch adds rpm node to apq8064 dt as rpm would be used by other
> devices for regulator support. Also adds all the regulators in the rpm.
>
Some comments on the compatibles, based on rpm-regulator-8960 msm-3.4.
After giving this some more thought I think it would be good to defer the
voltage definition to the dts files, at least for the ldos (as these are being
re-purposed).
That way the dts implementor will be the one frying their components and not us
because some default value kicking in because someone miss-spelled or forgot to
override a certain voltage.
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
> arch/arm/boot/dts/qcom-apq8064.dtsi | 297 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 297 insertions(+)
>
> diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
[..]
> + pm8921_s5: pm8921-s5 {
> + compatible = "qcom,rpm-pm8921-smps";
qcom,rpm-pm8921-ftsmps
> + reg = <QCOM_RPM_PM8921_SMPS5>;
> + regulator-min-microvolt = < 850000>;
> + regulator-max-microvolt = <1300000>;
> + };
> +
> + pm8921_s6: pm8921-s6 {
> + compatible = "qcom,rpm-pm8921-smps";
qcom,rpm-pm8921-ftsmps
> + reg = <QCOM_RPM_PM8921_SMPS6>;
> + regulator-min-microvolt = < 850000>;
> + regulator-max-microvolt = <1300000>;
> + };
> +
> + pm8921_s7: pm8921-s7 {
> + compatible = "qcom,rpm-pm8921-smps";
> + reg = <QCOM_RPM_PM8921_SMPS7>;
> + regulator-min-microvolt = < 500000>;
> + regulator-max-microvolt = <1350000>;
> + };
> +
> + pm8921_s8: pm8921-s8 {
> + compatible = "qcom,rpm-pm8921-smps";
> + reg = <QCOM_RPM_PM8921_SMPS8>;
> + regulator-min-microvolt = <1500000>;
> + regulator-max-microvolt = <2350000>;
> + };
> +
> + /* PMOS LDO */
> + pm8921_l1: pm8921-l1 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo
> + reg = <QCOM_RPM_PM8921_LDO1>;
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <1450000>;
> + };
> +
> + pm8921_l2: pm8921-l2 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo
> + reg = <QCOM_RPM_PM8921_LDO2>;
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
[..]
> +
> + pm8921_l24: pm8921-l24 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo1200
> + reg = <QCOM_RPM_PM8921_LDO24>;
> + regulator-min-microvolt = <0750000>;
> + regulator-max-microvolt = <1250000>;
> + };
> +
> + pm8921_l25: pm8921-l25 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo1200
> + reg = <QCOM_RPM_PM8921_LDO25>;
> + regulator-min-microvolt = <0750000>;
> + regulator-max-microvolt = <1250000>;
> + };
> +
> + pm8921_l26: pm8921-l26 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo1200
> + reg = <QCOM_RPM_PM8921_LDO26>;
> + regulator-min-microvolt = <0750000>;
> + regulator-max-microvolt = <1250000>;
> + };
> +
> + pm8921_l27: pm8921-l27 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo1200
> + reg = <QCOM_RPM_PM8921_LDO27>;
> + regulator-min-microvolt = <0750000>;
> + regulator-max-microvolt = <1250000>;
> + };
> +
> + pm8921_l28: pm8921-l28 {
> + compatible = "qcom,rpm-pm8921-pldo";
qcom,rpm-pm8921-nldo1200
> + reg = <QCOM_RPM_PM8921_LDO28>;
> + regulator-min-microvolt = <0750000>;
> + regulator-max-microvolt = <1500000>;
> + };
> +
[..]
> +
pm8921_usb_switch: pm8921-usb-switch {
compatible = "qcom,rpm-pm8921-switch";
reg = <QCOM_RPM_USB_OTG_SWITCH>;
};
pm8921_hdmi_switch: pm8921-hdmi-switch {
compatible = "qcom,rpm-pm8921-switch";
reg = <QCOM_RPM_HDMI_SWITCH>;
};
pm8921_ncp: pm8921-ncp {
compatible = "qcom,rpm-pm8921-ncp";
reg = <QCOM_RPM_PM8921_NCP>;
};
> + };
> +
> /* Temporary fixed regulator */
> vsdcc_fixed: vsdcc-regulator {
> compatible = "regulator-fixed";
> --
> 1.9.1
>
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