linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sm8550-qrd: add QRD8550

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Date:   Mon, 13 Feb 2023 12:14:37 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Abel Vesa <abel.vesa@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sm8550-qrd: add QRD8550



On 10.02.2023 17:38, Krzysztof Kozlowski wrote:
> Add a minimal DTS for the new QRD8550 board - a mobile-like development
> board with SM8550.  Serial, UFS and USB should be working.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
[...]
> +
> +		vreg_l17b_2p5: ldo17 {
> +			regulator-name = "vreg_l17b_2p5";
> +			regulator-min-microvolt = <2504000>;
> +			regulator-max-microvolt = <2504000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +		};

[...]

> +		};
> +
> +		vreg_l1g_1p2: ldo1 {
> +			regulator-name = "vreg_l1g_1p2";
> +			regulator-min-microvolt = <1200000>;
> +			regulator-max-microvolt = <1200000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +		};
> +
> +		vreg_l3g_1p2: ldo3 {
> +			regulator-name = "vreg_l3g_1p2";
> +			regulator-min-microvolt = <1200000>;
> +			regulator-max-microvolt = <1200000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +		};
> +	};

[...]

> +
> +&ufs_mem_hc {
> +	reset-gpios = <&tlmm 210 GPIO_ACTIVE_LOW>;
> +	vcc-supply = <&vreg_l17b_2p5>;
> +	vcc-max-microamp = <1300000>;
> +	vccq-supply = <&vreg_l1g_1p2>;
> +	vccq-max-microamp = <1200000>;
> +	vccq2-supply = <&vreg_l3g_1p2>;
None of these regulators have allowed-modes + allow-set-load,
I think you may want that.

With or without that:

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
> +	vccq2-max-microamp = <100>;
> +
> +	status = "okay";
> +};
> +
> +&ufs_mem_phy {
> +	vdda-phy-supply = <&vreg_l1d_0p88>;
> +	vdda-pll-supply = <&vreg_l3e_1p2>;
> +
> +	status = "okay";
> +};
> +
> +&usb_1 {
> +	status = "okay";
> +};
> +
> +&usb_1_dwc3 {
> +	dr_mode = "peripheral";
> +};
> +
> +&usb_1_hsphy {
> +	vdd-supply = <&vreg_l1e_0p88>;
> +	vdda12-supply = <&vreg_l3e_1p2>;
> +
> +	status = "okay";
> +};
> +
> +&usb_dp_qmpphy {
> +	vdda-phy-supply = <&vreg_l3e_1p2>;
> +	vdda-pll-supply = <&vreg_l3f_0p88>;
> +
> +	status = "okay";
> +};
> +
> +&xo_board {
> +	clock-frequency = <76800000>;
> +};