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From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date:   Sat, 4 Nov 2023 00:22:12 +0200
Message-ID: <CAA8EJprNyu0r_mV9hbKA1fSvoEvTHuk5umxU8H64Voj_cnZcFQ@mail.gmail.com>
Subject: Re: [RFC PATCH 2/2] arm64: dts: qcom: qcm6490: Add qcm6490 idp and
 rb3 board
To:     Komal Bajaj <quic_kbajaj@quicinc.com>
Cc:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, quic_nainmeht@quicinc.com
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Precedence: bulk

On Fri, 3 Nov 2023 at 20:49, Komal Bajaj <quic_kbajaj@quicinc.com> wrote:
>
> Add qcm6490 devicetree file for QCM6490 IDP and QCM6490 RB3
> platform. QCM6490 is derived from SC7280 meant for various
> form factor including IoT.
>
> Supported features are, as of now:
> * Debug UART
> * eMMC (only in IDP)
> * USB
>
> Co-developed-by: Naina Mehta <quic_nainmeht@quicinc.com>
> Signed-off-by: Naina Mehta <quic_nainmeht@quicinc.com>
> Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile             |   2 +
>  arch/arm64/boot/dts/qcom/qcm6490-idp.dts      |  33 ++
>  .../boot/dts/qcom/qcm6490-iot-common.dtsi     | 291 ++++++++++++++++++
>  arch/arm64/boot/dts/qcom/qcm6490-rb3.dts      |  26 ++
>  4 files changed, 352 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-idp.dts
>  create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-iot-common.dtsi
>  create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
>
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 73c3be0f8872..29cd77000970 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -82,6 +82,8 @@ dtb-$(CONFIG_ARCH_QCOM)       += msm8998-sony-xperia-yoshino-maple.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += msm8998-sony-xperia-yoshino-poplar.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += msm8998-xiaomi-sagit.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-fairphone-fp5.dtb
> +dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-idp.dtb
> +dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-rb3.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += qcs404-evb-1000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += qcs404-evb-4000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)        += qdu1000-idp.dtb
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> new file mode 100644
> index 000000000000..b1d1b8f40bdb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> @@ -0,0 +1,33 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include "qcm6490-iot-common.dtsi"
> +
> +/ {
> +       model = "Qualcomm Technologies, Inc. QCM6490 IDP";
> +       compatible = "qcom,qcm6490-idp", "qcom,qcm6490";
> +
> +       aliases {
> +               serial0 = &uart5;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +};
> +
> +&sdhc_1 {
> +       non-removable;
> +       no-sd;
> +       no-sdio;
> +
> +       vmmc-supply = <&vreg_l7b_2p952>;
> +       vqmmc-supply = <&vreg_l19b_1p8>;
> +
> +       status = "okay";
> +};
> +
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-iot-common.dtsi b/arch/arm64/boot/dts/qcom/qcm6490-iot-common.dtsi
> new file mode 100644
> index 000000000000..01adc97789d0
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-iot-common.dtsi

I have mixed feelings towards this file. Usually we add such 'common'
files only for the phone platforms where most of the devices are
common.
Do you expect that IDP and RB3 will have a lot of common code other
than these regulator settings?

> @@ -0,0 +1,291 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include "sc7280.dtsi"
> +#include "pm7325.dtsi"
> +#include "pm8350c.dtsi"
> +#include "pmk8350.dtsi"
> +
> +&apps_rsc {
> +       regulators-0 {
> +               compatible = "qcom,pm7325-rpmh-regulators";
> +               qcom,pmic-id = "b";
> +
> +               vreg_s1b_1p872: smps1 {
> +                       regulator-min-microvolt = <1840000>;
> +                       regulator-max-microvolt = <2040000>;
> +               };
> +
> +               vreg_s2b_0p876: smps2 {
> +                       regulator-min-microvolt = <570070>;
> +                       regulator-max-microvolt = <1050000>;
> +               };
> +
> +               vreg_s7b_0p972: smps7 {
> +                       regulator-min-microvolt = <535000>;
> +                       regulator-max-microvolt = <1120000>;
> +               };
> +
> +               vreg_s8b_1p272: smps8 {
> +                       regulator-min-microvolt = <1200000>;
> +                       regulator-max-microvolt = <1500000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_RET>;
> +               };
> +
> +               vreg_l1b_0p912: ldo1 {
> +                       regulator-min-microvolt = <825000>;
> +                       regulator-max-microvolt = <925000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l2b_3p072: ldo2 {
> +                       regulator-min-microvolt = <2700000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l3b_0p504: ldo3 {
> +                       regulator-min-microvolt = <312000>;
> +                       regulator-max-microvolt = <910000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l4b_0p752: ldo4 {
> +                       regulator-min-microvolt = <752000>;
> +                       regulator-max-microvolt = <820000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               reg_l5b_0p752: ldo5 {
> +                       regulator-min-microvolt = <552000>;
> +                       regulator-max-microvolt = <832000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l6b_1p2: ldo6 {
> +                       regulator-min-microvolt = <1140000>;
> +                       regulator-max-microvolt = <1260000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l7b_2p952: ldo7 {
> +                       regulator-min-microvolt = <2400000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l8b_0p904: ldo8 {
> +                       regulator-min-microvolt = <870000>;
> +                       regulator-max-microvolt = <970000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l9b_1p2: ldo9 {
> +                       regulator-min-microvolt = <1200000>;
> +                       regulator-max-microvolt = <1304000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l11b_1p504: ldo11 {
> +                       regulator-min-microvolt = <1504000>;
> +                       regulator-max-microvolt = <2000000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l12b_0p751: ldo12 {
> +                       regulator-min-microvolt = <751000>;
> +                       regulator-max-microvolt = <824000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l13b_0p53: ldo13 {
> +                       regulator-min-microvolt = <530000>;
> +                       regulator-max-microvolt = <824000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l14b_1p08: ldo14 {
> +                       regulator-min-microvolt = <1080000>;
> +                       regulator-max-microvolt = <1304000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l15b_0p765: ldo15 {
> +                       regulator-min-microvolt = <765000>;
> +                       regulator-max-microvolt = <1020000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l16b_1p1: ldo16 {
> +                       regulator-min-microvolt = <1100000>;
> +                       regulator-max-microvolt = <1300000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l17b_1p7: ldo17 {
> +                       regulator-min-microvolt = <1700000>;
> +                       regulator-max-microvolt = <1900000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l18b_1p8: ldo18 {
> +                       regulator-min-microvolt = <1800000>;
> +                       regulator-max-microvolt = <2000000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l19b_1p8: ldo19 {
> +                       regulator-min-microvolt = <1800000>;
> +                       regulator-max-microvolt = <2000000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +       };
> +
> +       regulators-1 {
> +               compatible = "qcom,pm8350c-rpmh-regulators";
> +               qcom,pmic-id = "c";
> +
> +               vreg_s1c_2p19: smps1 {
> +                       regulator-min-microvolt = <2190000>;
> +                       regulator-max-microvolt = <2210000>;
> +               };
> +
> +               vreg_s2c_0p752: smps2 {
> +                       regulator-min-microvolt = <750000>;
> +                       regulator-max-microvolt = <800000>;
> +               };
> +
> +               vreg_s5c_0p752: smps5 {
> +                       regulator-min-microvolt = <465000>;
> +                       regulator-max-microvolt = <1050000>;
> +               };
> +
> +               vreg_s7c_0p752: smps7 {
> +                       regulator-min-microvolt = <465000>;
> +                       regulator-max-microvolt = <800000>;
> +               };
> +
> +               vreg_s9c_1p084: smps9 {
> +                       regulator-min-microvolt = <1010000>;
> +                       regulator-max-microvolt = <1170000>;
> +               };
> +
> +               vreg_l1c_1p8: ldo1 {
> +                       regulator-min-microvolt = <1800000>;
> +                       regulator-max-microvolt = <1980000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l2c_1p62: ldo2 {
> +                       regulator-min-microvolt = <1620000>;
> +                       regulator-max-microvolt = <1980000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l3c_2p8: ldo3 {
> +                       regulator-min-microvolt = <2800000>;
> +                       regulator-max-microvolt = <3540000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l4c_1p62: ldo4 {
> +                       regulator-min-microvolt = <1620000>;
> +                       regulator-max-microvolt = <3300000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l5c_1p62: ldo5 {
> +                       regulator-min-microvolt = <1620000>;
> +                       regulator-max-microvolt = <3300000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l6c_2p96: ldo6 {
> +                       regulator-min-microvolt = <1650000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l7c_3p0: ldo7 {
> +                       regulator-min-microvolt = <3000000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l8c_1p62: ldo8 {
> +                       regulator-min-microvolt = <1620000>;
> +                       regulator-max-microvolt = <2000000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l9c_2p96: ldo9 {
> +                       regulator-min-microvolt = <2700000>;
> +                       regulator-max-microvolt = <35440000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l10c_0p88: ldo10 {
> +                       regulator-min-microvolt = <720000>;
> +                       regulator-max-microvolt = <1050000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l11c_2p8: ldo11 {
> +                       regulator-min-microvolt = <2800000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l12c_1p65: ldo12 {
> +                       regulator-min-microvolt = <1650000>;
> +                       regulator-max-microvolt = <2000000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_l13c_2p7: ldo13 {
> +                       regulator-min-microvolt = <2700000>;
> +                       regulator-max-microvolt = <3544000>;
> +                       regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +               };
> +
> +               vreg_bob_3p296: bob {
> +                       regulator-min-microvolt = <3008000>;
> +                       regulator-max-microvolt = <3960000>;
> +               };
> +       };
> +};
> +
> +&qupv3_id_0 {
> +       status = "okay";
> +};
> +
> +&uart5 {
> +       compatible = "qcom,geni-debug-uart";

Maybe we should add qcm6490.dtsi, which has this compat string (and
other possible differences between sc7280 and qcm6490).

> +       status = "okay";
> +};
> +
> +&usb_1 {
> +       status = "okay";
> +};
> +
> +&usb_1_dwc3 {
> +       dr_mode = "peripheral";
> +};
> +
> +&usb_1_hsphy {
> +       vdda-pll-supply = <&vreg_l10c_0p88>;
> +       vdda33-supply = <&vreg_l2b_3p072>;
> +       vdda18-supply = <&vreg_l1c_1p8>;
> +
> +       status = "okay";
> +};
> +
> +&usb_1_qmpphy {
> +       vdda-phy-supply = <&vreg_l6b_1p2>;
> +       vdda-pll-supply = <&vreg_l1b_0p912>;
> +
> +       status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts b/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
> new file mode 100644
> index 000000000000..5b4c2826ac5c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
> @@ -0,0 +1,26 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +/* PM7250B is configured to use SID8/9 */
> +#define PM7250B_SID 8
> +#define PM7250B_SID1 9
> +
> +#include "qcm6490-iot-common.dtsi"
> +#include "pm7250b.dtsi"
> +
> +/ {
> +       model = "Qualcomm Technologies, Inc. QCM6490 RB3";

Is this a marketing name of the platform?

> +       compatible = "qcom,qcm6490-rb3", "qcom,qcm6490";

chassis-type = ?

> +
> +       aliases {
> +               serial0 = &uart5;
> +       };
> +
> +       chosen {
> +               stdout-path = "serial0:115200n8";
> +       };
> +};
> --
> 2.42.0
>


-- 
With best wishes
Dmitry