linux-kernel - Re: [PATCH 2/3] arm64: dts: qcom: sa8295p: Enable tertiary controller and its 4 USB ports

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Message-ID: <CAA8EJpoed-hu4hPXAcwQxmJAaNRwJ2y5q9qybWaPP8bdMnz_oA@mail.gmail.com>
Date: Tue, 6 Feb 2024 14:13:10 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Krishna Kurapati <quic_kriskura@...cinc.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Rob Herring <robh+dt@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	quic_ppratap@...cinc.com, quic_jackp@...cinc.com
Subject: Re: [PATCH 2/3] arm64: dts: qcom: sa8295p: Enable tertiary controller
 and its 4 USB ports

On Tue, 6 Feb 2024 at 14:03, Krishna Kurapati <quic_kriskura@...cinc.com> wrote:
>
> Enable tertiary controller for SA8295P (based on SC8280XP).
> Add pinctrl support for usb ports to provide VBUS to connected peripherals.

These are not just pinctrl entries. They hide VBUS regulators. Please
implement them properly as corresponding vbus regulators.

>
> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 49 ++++++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> index fd253942e5e5..6da444042f82 100644
> --- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>  #include <dt-bindings/spmi/spmi.h>
> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>
>  #include "sa8540p.dtsi"
>  #include "sa8540p-pmics.dtsi"
> @@ -584,6 +585,16 @@ &usb_1_qmpphy {
>         status = "okay";
>  };
>
> +&usb_2 {
> +       pinctrl-0 = <&usb2_en>,
> +                   <&usb3_en>,
> +                   <&usb4_en>,
> +                   <&usb5_en>;
> +       pinctrl-names = "default";
> +
> +       status = "okay";
> +};
> +
>  &usb_2_hsphy0 {
>         vdda-pll-supply = <&vreg_l5a>;
>         vdda18-supply = <&vreg_l7g>;
> @@ -636,6 +647,44 @@ &xo_board_clk {
>
>  /* PINCTRL */
>
> +&pmm8540c_gpios {
> +       usb2_en: usb2-en-state {
> +               pins = "gpio9";
> +               function = "normal";
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
> +               output-high;
> +               power-source = <0>;
> +       };
> +};
> +
> +&pmm8540e_gpios {
> +       usb3_en: usb3-en-state {
> +               pins = "gpio5";
> +               function = "normal";
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
> +               output-high;
> +               power-source = <0>;
> +       };
> +};
> +
> +&pmm8540g_gpios {
> +       usb4_en: usb4-en-state {
> +               pins = "gpio5";
> +               function = "normal";
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
> +               output-high;
> +               power-source = <0>;
> +       };
> +
> +       usb5_en: usb5-en-state {
> +               pins = "gpio9";
> +               function = "normal";
> +               qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
> +               output-high;
> +               power-source = <0>;
> +       };
> +};
> +
>  &tlmm {
>         pcie2a_default: pcie2a-default-state {
>                 clkreq-n-pins {
> --
> 2.34.1
>
>


-- 
With best wishes
Dmitry