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Date: Thu, 28 Oct 2021 13:40:04 -0700
From: Stephen Boyd <swboyd@...omium.org>
To: Bjorn Andersson <bjorn.andersson@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Satya Priya <quic_c_skakit@...cinc.com>
Cc: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, collinsd@...eurora.org,
subbaram@...eaurora.org, Das Srinagesh <gurus@...eaurora.org>,
linux-arm-msm@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 4/4] arm64: dts: qcom: sc7280: Add pm8008 regulators
support for sc7280-idp
Quoting Satya Priya (2021-10-28 08:14:32)
> Add pm8008 regulators support for sc7280 idp.
>
> Signed-off-by: Satya Priya <quic_c_skakit@...cinc.com>
> ---
> Changes in V2:
> - As per Stephen's comments, replaced '_' with '-' for node names.
>
> Changes in V3:
> - Changed the regulator node names as l1, l2 etc
> - Changed "pm8008-regulators" to "regulators"
> - Changed "qcom,min-dropout-voltage" to "regulator-min-dropout-voltage-microvolt"
>
> arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 103 +++++++++++++++++++++++++++++++
> 1 file changed, 103 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index d623d71..493575b 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -309,6 +309,97 @@
> };
> };
>
> +&i2c1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "okay";
> +
> + pm8008_chip: pm8008@8 {
If this is going to be copy/pasted wherever devices that use pm8008 live
then it's probably better to make a new file like we do for other pmics.
Maybe something like
&pm8008_i2c {
<All the generic stuff in here like reg properties and
address/size cells and compatible>
};
and then have each board set the min/max voltages and min dropout
properties. Then we can include the pm8008.dtsi file after defining
which i2c bus it lives on.
pm8008_i2c: i2c5 { };
#include "pm8008.dtsi"
...
&pm8008_l1 {
regulator-min-microvolt = <...>;
...
};
> + compatible = "qcom,pm8008";
> + reg = <0x8>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pm8008_active>;
> + };
> +
> + pm8008_ldo: pm8008@9 {
> + compatible = "qcom,pm8008";
> + reg = <0x9>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + regulators {
> + compatible = "qcom,pm8008-regulator";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + vdd_l1_l2-supply = <&vreg_s8b_1p2>;
> + vdd_l3_l4-supply = <&vreg_s1b_1p8>;
> + vdd_l5-supply = <&vreg_bob>;
> + vdd_l6-supply = <&vreg_bob>;
> + vdd_l7-supply = <&vreg_bob>;
> +
> + pm8008_l1: l1@...0 {
> + reg = <0x4000>;
> + regulator-name = "pm8008_l1";
> + regulator-min-microvolt = <950000>;
> + regulator-max-microvolt = <1300000>;
> + regulator-min-dropout-voltage-microvolt = <96000>;
> + };
> +
> + pm8008_l2: l2@...0 {
> + reg = <0x4100>;
> + regulator-name = "pm8008_l2";
> + regulator-min-microvolt = <950000>;
> + regulator-max-microvolt = <1250000>;
> + regulator-min-dropout-voltage-microvolt = <24000>;
> + };
> +
> + pm8008_l3: l3@...0 {
> + reg = <0x4200>;
> + regulator-name = "pm8008_l3";
> + regulator-min-microvolt = <1650000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-min-dropout-voltage-microvolt = <224000>;
> + };
> +
> + pm8008_l4: l4@...0 {
> + reg = <0x4300>;
> + regulator-name = "pm8008_l4";
> + regulator-min-microvolt = <1504000>;
> + regulator-max-microvolt = <1600000>;
> + regulator-min-dropout-voltage-microvolt = <0>;
> + };
> +
> + pm8008_l5: l5@...0 {
> + reg = <0x4400>;
> + regulator-name = "pm8008_l5";
> + regulator-min-microvolt = <2600000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-min-dropout-voltage-microvolt = <104000>;
> + };
> +
> + pm8008_l6: l6@...0 {
> + reg = <0x4500>;
> + regulator-name = "pm8008_l6";
> + regulator-min-microvolt = <2600000>;
> + regulator-max-microvolt = <3000000>;
> + regulator-min-dropout-voltage-microvolt = <112000>;
> + };
> +
> + pm8008_l7: l7@...0 {
> + reg = <0x4600>;
> + regulator-name = "pm8008_l7";
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3544000>;
> + regulator-min-dropout-voltage-microvolt = <96000>;
> + };
> + };
> + };
> +};
> +
> &qfprom {
> vcc-supply = <&vreg_l1c_1p8>;
> };
> @@ -437,6 +528,18 @@
> };
> };
>
> +&pm8350c_gpios {
> + pm8008-reset {
Why is it a subnode of a subnode? Shouldn't it be pm8008-active
directly underneath pm8350c_gpios?
> + pm8008_active: pm8008-active {
> + pins = "gpio4";
> + function = "normal";
> + bias-disable;
> + output-high;
> + power-source = <0>;
> + };
> + };
> +};
> +
> &qspi_cs0 {
> bias-disable;
> };
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