linux-kernel - Re: [PATCH 6/8] arm64: dts: qcom: sa8295p-adp: add max20411

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Message-ID: <CAA8EJprUobs=EJWTMK5=U-=5rU_L0RWRgjFjBZZX1mQWMiW4_w@mail.gmail.com>
Date: Thu, 21 Dec 2023 09:07:52 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <quic_bjorande@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, 
	Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Taniya Das <quic_tdas@...cinc.com>, Ulf Hansson <ulf.hansson@...aro.org>, 
	Johan Hovold <johan+linaro@...nel.org>, Catalin Marinas <catalin.marinas@....com>, 
	Will Deacon <will@...nel.org>, linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 6/8] arm64: dts: qcom: sa8295p-adp: add max20411

On Thu, 21 Dec 2023 at 05:52, Bjorn Andersson <quic_bjorande@...cinc.com> wrote:
>
> From: Bjorn Andersson <andersson@...nel.org>
>
> The SA8295P ADP has a MAX20411 LDO regulator on I2C 12, supplying the
> VDD_GFX pads. Enable the bus and add the maxim,max20411 device on the
> bus.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 40 ++++++++++++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> index fd253942e5e5..e16406c9c19d 100644
> --- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> @@ -266,6 +266,26 @@ &dispcc1 {
>         status = "okay";
>  };
>
> +&i2c12 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&qup1_i2c4_state>;
> +
> +       status = "okay";
> +
> +       vdd_gfx: regulator@39 {
> +               compatible = "maxim,max20411";
> +               reg = <0x39>;
> +
> +               regulator-min-microvolt = <800000>;
> +               regulator-max-microvolt = <968750>;
> +
> +               enable-gpios = <&pmm8540a_gpios 2 GPIO_ACTIVE_HIGH>;
> +
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&max20411_en>;
> +       };
> +};
> +
>  &mdss0 {
>         status = "okay";
>  };
> @@ -476,6 +496,10 @@ &pcie4_phy {
>         status = "okay";
>  };
>
> +&qup1 {
> +       status = "okay";
> +};
> +
>  &qup2 {
>         status = "okay";
>  };
> @@ -728,4 +752,20 @@ wake-n-pins {
>                         bias-pull-up;
>                 };
>         };
> +
> +       qup1_i2c4_state: qup1-i2c4-state {
> +               pins = "gpio0", "gpio1";
> +               function = "qup12";
> +
> +               drive-strength = <2>;
> +               bias-pull-up;
> +       };
> +};
> +
> +&pmm8540a_gpios {

I think pmm8540a_gpios comes before tlmm in the dictionary order.
Other than that LGTM

> +       max20411_en: max20411-en-state {
> +               pins = "gpio2";
> +               function = "normal";
> +               output-enable;
> +       };
>  };



-- 
With best wishes
Dmitry