Re: [PATCH v4 5/6] arm64: dts: qcom: Add Square apq8039-t2 board

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On 23/01/2023 03:31, Bryan O'Donoghue wrote:
> The apq8039-t2 is an apq8039 based board paired with a wcn3680b WiFi
> chipset.
> 
> Co-developed-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> Co-developed-by: Jun Nie <jun.nie@xxxxxxxxxx>
> Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx>
> Co-developed-by: Benjamin Li <benl@xxxxxxxxxxxx>
> Signed-off-by: Benjamin Li <benl@xxxxxxxxxxxx>
> Co-developed-by: James Willcox <jwillcox@xxxxxxxxxxxx>
> Signed-off-by: James Willcox <jwillcox@xxxxxxxxxxxx>
> Co-developed-by: Leo Yan <leo.yan@xxxxxxxxxx>
> Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
> Co-developed-by: Joseph Gates <jgates@xxxxxxxxxxxx>
> Signed-off-by: Joseph Gates <jgates@xxxxxxxxxxxx>
> Co-developed-by: Max Chen <mchen@xxxxxxxxxxxx>
> Signed-off-by: Max Chen <mchen@xxxxxxxxxxxx>
> Co-developed-by: Zac Crosby <zac@xxxxxxxxxxxx>
> Signed-off-by: Zac Crosby <zac@xxxxxxxxxxxx>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/Makefile       |   1 +
>  arch/arm64/boot/dts/qcom/apq8039-t2.dts | 545 ++++++++++++++++++++++++
>  2 files changed, 546 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/apq8039-t2.dts
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index b0423ca3e79fd..73ff8d3213d99 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -1,5 +1,6 @@
>  # SPDX-License-Identifier: GPL-2.0
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb
> +dtb-$(CONFIG_ARCH_QCOM)	+= apq8039-t2.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8094-sony-xperia-kitakami-karin_windy.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-ifc6640.dtb
> diff --git a/arch/arm64/boot/dts/qcom/apq8039-t2.dts b/arch/arm64/boot/dts/qcom/apq8039-t2.dts
> new file mode 100644
> index 0000000000000..734b4d6054132
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/apq8039-t2.dts
> @@ -0,0 +1,545 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2015, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2020-2023, Linaro Ltd.
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include "msm8939.dtsi"
> +#include "msm8939-pm8916.dtsi"
> +#include <dt-bindings/arm/qcom,ids.h>
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +#include <dt-bindings/sound/apq8016-lpass.h>
> +
> +/ {
> +	model = "Square, Inc. T2 Devkit";
> +	compatible = "square,apq8039-t2", "qcom,msm8939";

There is no square vendor prefix.

> +
> +	qcom,board-id = <0x53 0x54>;
> +	qcom,msm-id = <QCOM_ID_MSM8939 0>, <QCOM_ID_MSM8939 0x30000>, <QCOM_ID_APQ8039 0x30000>;
> +
> +	aliases {
> +		mmc0 = &sdhc_1;
> +		mmc1 = &sdhc_2;
> +		serial0 = &blsp1_uart1;
> +		serial1 = &blsp1_uart2;
> +	};
> +
> +	bl: backlight {
> +		compatible = "gpio-backlight";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_backlight>;
> +		gpios = <&tlmm 98 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial1:115200n8";
> +	};
> +
> +	lcd_avdd_reg: lcd-avdd-regulator {

Since we try to have nodes ordered, how about naming them
"regulator-xxx", so whatever is added later will not spread them all over?

> +		compatible = "regulator-fixed";
> +		regulator-name = "lcd_avdd";
> +		regulator-min-microvolt = <5600000>;
> +		regulator-max-microvolt = <5600000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_lcd_avdd_reg>;
> +		gpio = <&tlmm 86 GPIO_ACTIVE_HIGH>;
> +		startup-delay-us = <300>;
> +		enable-active-high;
> +	};
> +
> +	lcd_avee_reg: lcd-avee-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "lcd_avee";
> +		regulator-min-microvolt = <5600000>;
> +		regulator-max-microvolt = <5600000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_lcd_avee_reg>;
> +		gpio = <&tlmm 87 GPIO_ACTIVE_HIGH>;
> +		startup-delay-us = <300>;
> +		enable-active-high;
> +	};
> +
> +	lcd_iovcc_reg: lcd-iovcc-regulator {
> +		compatible = "regulator-fixed";
> +		regulator-name = "lcd_iovcc";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_lcd_iovcc_reg>;
> +		gpio = <&tlmm 9 GPIO_ACTIVE_HIGH>;
> +		startup-delay-us = <300>;
> +		enable-active-high;
> +	};
> +
> +	pp_crq_3v3_reg: pp-crq-3v3-regulator {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tlmm_crq_reg>;
> +		regulator-name = "pp_crq_3v3";
> +		gpio = <&tlmm 12 GPIO_ACTIVE_HIGH>;
> +		startup-delay-us = <0>;
> +		enable-active-high;
> +	};
> +
> +	pp_spe_3v3_reg: pp-spe-3v3-regulator {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tlmm_spe_reg>;
> +		regulator-name = "pp_spe_3v3";
> +		gpio = <&tlmm 108 GPIO_ACTIVE_HIGH>;
> +		startup-delay-us = <0>;
> +		enable-active-high;
> +	};
> +};
> +
> +&blsp_i2c1 {
> +	status = "okay";
> +};
> +
> +&blsp_i2c2 {
> +	status = "okay";
> +};
> +
> +&blsp_i2c3 {
> +	status = "okay";
> +
> +	typec: tps6598x@38 {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "ti,tps6598x";
> +		reg = <0x38>;
> +
> +		interrupt-parent = <&tlmm>;
> +		interrupts = <107 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-names = "irq";
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&typec_irq>;
> +
> +		typec_con: connector {
> +			compatible = "usb-c-connector";
> +			label = "USB-C";
> +			port {
> +				typec_ep: endpoint {
> +					remote-endpoint = <&otg_ep>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&blsp_i2c5 {
> +	status = "okay";
> +};
> +
> +&blsp1_uart1 {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&blsp1_uart1_default>;
> +	pinctrl-1 = <&blsp1_uart1_sleep>;
> +	status = "okay";
> +};
> +
> +&blsp1_uart2 {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&blsp1_uart2_default>;
> +	pinctrl-1 = <&blsp1_uart2_sleep>;
> +	status = "okay";
> +};
> +
> +&lpass {
> +	status = "okay";
> +};
> +
> +&pm8916_gpios {
> +	gpio-line-names =
> +		"PM_GPIO1",     /* WIFI_GPIO1_PRE */
> +		"PM_GPIO2",     /* WIFI_GPIO2_PRE */
> +		"PM_GPIO3",
> +		"PM_GPIO4";
> +};
> +
> +&pronto {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&wcnss_pin_a>;
> +	status = "okay";
> +
> +	iris {
> +		compatible = "qcom,wcn3680";
> +	};
> +};
> +
> +&smd_rpm_regulators {
> +	vdd_l1_l2_l3-supply = <&pm8916_s3>;
> +	vdd_l4_l5_l6-supply = <&pm8916_s4>;
> +	vdd_l7-supply = <&pm8916_s4>;
> +
> +	pm8916_s3: s3 {
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1300000>;
> +	};
> +
> +	pm8916_s4: s4 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2100000>;
> +	};
> +
> +	/* l1 is fixed to 1225000, but not connected in schematic */
> +
> +	pm8916_l2: l2 {
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +	};
> +
> +	pm8916_l4: l4 {
> +		regulator-min-microvolt = <2050000>;
> +		regulator-max-microvolt = <2050000>;
> +	};
> +
> +	pm8916_l5: l5 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	pm8916_l6: l6 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	pm8916_l7: l7 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	pm8916_l8: l8 {
> +		regulator-min-microvolt = <2850000>;
> +		regulator-max-microvolt = <2900000>;
> +	};
> +
> +	pm8916_l9: l9 {
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	pm8916_l10: l10 {
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	pm8916_l11: l11 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2950000>;
> +	};
> +
> +	pm8916_l12: l12 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <2950000>;
> +	};
> +
> +	pm8916_l13: l13 {
> +		regulator-min-microvolt = <3075000>;
> +		regulator-max-microvolt = <3075000>;
> +	};
> +
> +	pm8916_l14: l14 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	pm8916_l15: l15 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	pm8916_l16: l16 {
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <3300000>;
> +	};
> +
> +	pm8916_l17: l17 {
> +		regulator-min-microvolt = <2850000>;
> +		regulator-max-microvolt = <2850000>;
> +	};
> +
> +	pm8916_l18: l18 {
> +		regulator-min-microvolt = <2700000>;
> +		regulator-max-microvolt = <2700000>;
> +	};
> +};
> +
> +&sdhc_1 {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&sdc1_default_state>;
> +	pinctrl-1 = <&sdc1_sleep_state>;
> +	status = "okay";
> +};
> +
> +&sound {
> +	model = "apq8039-square-sndcard";

This is one weird sound card... it should have never been merged into
sm8250 bindings because it is quite different. Actually, I am not sure
if it is correct representation of sound card. Sound cards do not have
IO addresses. Here some missing driver was added to sound card - thus IO
address space... But anyway, that ship has sailed. :/

> +	audio-routing = "AMIC2", "MIC BIAS Internal2";
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&cdc_pdm_lines_default>;
> +	pinctrl-1 = <&cdc_pdm_lines_sleep>;
> +



Best regards,
Krzysztof




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