Re: [PATCH v2 2/2] ARM: dts: qcom: Add support for Samsung Galaxy Tab 4 8.0 Wi-Fi

From: Luca Weiss
Date: Thu Feb 15 2024 - 12:56:03 EST

On Donnerstag, 15. Februar 2024 18:19:49 CET Bryant Mairs wrote:
> Add support for this tablet based on the MSM8226 SoC, codenamed
> "milletwifi".
>
> Signed-off-by: Bryant Mairs <bryant@xxxxxx>
> Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

afaik Acked-by should come before Signed-off-by (in other words your S-o-b
should be the last tag when you send patches)

> ---
> arch/arm/boot/dts/qcom/Makefile | 1 +
> .../qcom/qcom-apq8026-samsung-milletwifi.dts | 568 ++++++++++++++++++
> 2 files changed, 569 insertions(+)
> create mode 100644
> arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts
>
> diff --git a/arch/arm/boot/dts/qcom/Makefile
> b/arch/arm/boot/dts/qcom/Makefile index 9cc1e14e6cd0..730d98c2c715 100644
> --- a/arch/arm/boot/dts/qcom/Makefile
> +++ b/arch/arm/boot/dts/qcom/Makefile
> @@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \
> qcom-apq8026-huawei-sturgeon.dtb \
> qcom-apq8026-lg-lenok.dtb \
> qcom-apq8026-samsung-matisse-wifi.dtb \
> + qcom-apq8026-samsung-milletwifi.dtb \
> qcom-apq8060-dragonboard.dtb \
> qcom-apq8064-cm-qs600.dtb \
> qcom-apq8064-ifc6410.dtb \
> diff --git a/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts
> b/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts new file mode
> 100644
> index 000000000000..a9c38bc8aa01
> --- /dev/null
> +++ b/arch/arm/boot/dts/qcom/qcom-apq8026-samsung-milletwifi.dts
> @@ -0,0 +1,568 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2022, Matti Lehtimäki <matti.lehtimaki@xxxxxxxxx>
> + * Copyright (c) 2023, Bryant Mairs <bryant@xxxxxx>
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/power/summit,smb347-charger.h>
> +#include "qcom-msm8226.dtsi"
> +#include "pm8226.dtsi"
> +
> +/delete-node/ &adsp_region;
> +/delete-node/ &smem_region;
> +
> +/ {
> + model = "Samsung Galaxy Tab 4 8.0 Wi-Fi";
> + compatible = "samsung,milletwifi", "qcom,apq8026";
> + chassis-type = "tablet";
> +
> + aliases {
> + display0 = &framebuffer0;
> + mmc0 = &sdhc_1; /* SDC1 eMMC slot */
> + mmc1 = &sdhc_2; /* SDC2 SD card slot */
> + };
> +
> + chosen {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + stdout-path = "display0";
> +
> + framebuffer0: framebuffer@3200000 {
> + compatible = "simple-framebuffer";
> + reg = <0x03200000 0x800000>;
> + width = <800>;
> + height = <1280>;
> + stride = <(800 * 3)>;
> + format = "r8g8b8";
> + };
> + };
> +
> + gpio-hall-sensor {
> + compatible = "gpio-keys";
> +
> + event-hall-sensor {
> + label = "Cover";
> + gpios = <&tlmm 37 GPIO_ACTIVE_LOW>;
> + linux,input-type = <EV_SW>;
> + linux,code = <SW_LID>;
> + debounce-interval = <15>;
> + linux,can-disable;
> + wakeup-source;
> + };
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> + autorepeat;
> +
> + key-home {
> + label = "Home";
> + gpios = <&tlmm 108 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_HOMEPAGE>;
> + debounce-interval = <15>;
> + };
> +
> + key-volume-down {
> + label = "Volume Down";
> + gpios = <&tlmm 107 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_VOLUMEDOWN>;
> + debounce-interval = <15>;
> + };
> +
> + key-volume-up {
> + label = "Volume Up";
> + gpios = <&tlmm 106 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_VOLUMEUP>;
> + debounce-interval = <15>;
> + };
> + };
> +
> + i2c-backlight {
> + compatible = "i2c-gpio";
> + sda-gpios = <&tlmm 20 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
> + scl-gpios = <&tlmm 21 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
> +
> + pinctrl-0 = <&backlight_i2c_default_state>;
> + pinctrl-names = "default";
> +
> + i2c-gpio,delay-us = <4>;
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + backlight@2c {
> + compatible = "ti,lp8556";
> + reg = <0x2c>;
> + enable-supply = <&reg_backlight_vddio>;
> +
> + dev-ctrl = /bits/ 8 <0x80>;
> + init-brt = /bits/ 8 <0x3f>;
> +
> + /*
> + * Change transition duration: 200ms, Change
transition strength: heavy,
> + * PWM hysteresis: 1-bit w/ 8-bit resolution
> + */
> + rom-a3h {
> + rom-addr = /bits/ 8 <0xa3>;
> + rom-val = /bits/ 8 <0x5e>;
> + };
> +
> + /*
> + * PWM phase configuration: 3-phase/3 drivers
(0, 120deg, 240deg, -, -,
> -), + * PWM frequency: 9616Hz (10-bit)
> + */
> + rom-a5h {
> + rom-addr = /bits/ 8 <0xa5>;
> + rom-val = /bits/ 8 <0x34>;
> + };
> +
> + /* Enable LED drivers 2 & 3, Boot inductor
current limit: 1.5A/2.6A */
> + rom-a7h {
> + rom-addr = /bits/ 8 <0xa7>;
> + rom-val = /bits/ 8 <0xfa>;
> + };
> + };
> + };
> +
> + reg_backlight_vddio: regulator-backlight-vddio {
> + compatible = "regulator-fixed";
> + regulator-name = "backlight_vddio";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> +
> + gpio = <&tlmm 74 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&backlight_vddio_default_state>;

Use this order:

pinctrl-0
pinctrl-names

Also applies a few more times below.

> + };
> +
> + reg_tsp_1p8v: regulator-tsp-1p8v {
> + compatible = "regulator-fixed";
> + regulator-name = "tsp_1p8v";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> +
> + gpio = <&tlmm 114 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&tsp_en1_default_state>;
> + };
> +
> + reg_tsp_3p3v: regulator-tsp-3p3v {
> + compatible = "regulator-fixed";
> + regulator-name = "tsp_3p3v";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> +
> + gpio = <&tlmm 31 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&tsp_en_default_state>;
> + };
> +
> + reserved-memory {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + framebuffer@3200000 {
> + reg = <0x03200000 0x800000>;
> + no-map;
> + };
> +
> + mpss_region: mpss@8400000 {
> + reg = <0x08400000 0x1f00000>;
> + no-map;
> + };
> +
> + mba_region: mba@a300000 {
> + reg = <0x0a300000 0x100000>;
> + no-map;
> + };
> +
> + reserved@cb00000 {
> + reg = <0x0cb00000 0x700000>;
> + no-map;
> + };
> +
> + wcnss_region: wcnss@d200000 {
> + reg = <0x0d200000 0x700000>;
> + no-map;
> + };
> +
> + adsp_region: adsp@d900000 {
> + reg = <0x0d900000 0x1800000>;
> + no-map;
> + };
> +
> + venus@f100000 {
> + reg = <0x0f100000 0x500000>;
> + no-map;
> + };
> +
> + smem_region: smem@fa00000 {
> + reg = <0x0fa00000 0x100000>;
> + no-map;
> + };
> +
> + reserved@fb00000 {
> + reg = <0x0fb00000 0x260000>;
> + no-map;
> + };
> +
> + rfsa@fd60000 {
> + reg = <0x0fd60000 0x20000>;
> + no-map;
> + };
> +
> + rmtfs@fd80000 {
> + compatible = "qcom,rmtfs-mem";
> + reg = <0x0fd80000 0x180000>;
> + no-map;
> +
> + qcom,client-id = <1>;
> + };
> + };
> +};
> +
> +&blsp1_i2c2 {
> + status = "okay";
> +
> + accelerometer@1d {
> + compatible = "st,lis2hh12";
> + reg = <0x1d>;
> +
> + interrupts-extended = <&tlmm 54 IRQ_TYPE_LEVEL_HIGH>;
> +
> + pinctrl-0 = <&accel_int_default_state>;
> + pinctrl-names = "default";
> +
> + st,drdy-int-pin = <1>;

This should move lower in this node if I read the style guide correctly :)

"Vendor-specific properties"
https://www.kernel.org/doc/html/next/devicetree/bindings/dts-coding-style.html#order-of-properties-in-device-node

Rest looks fine, so with that fixed you can add my:

Reviewed-by: Luca Weiss <luca@xxxxxxxxx>

> +
> + vdd-supply = <&pm8226_l19>;
> + vddio-supply = <&pm8226_lvs1>;
> +
> + mount-matrix = "0", "1", "0",
> + "-1", "0", "0",
> + "0", "0", "1";
> + };
> +};
> +
> +&blsp1_i2c3 {
> + status = "okay";
> +
> + charger@6a {
> + compatible = "summit,smb358";
> + reg = <0x6a>;
> +
> + interrupts-extended = <&tlmm 115 IRQ_TYPE_EDGE_FALLING>;
> +
> + pinctrl-0 = <&charger_int_default_state>;
> + pinctrl-names = "default";
> +
> + summit,enable-usb-charging;
> + summit,enable-charge-control = <SMB3XX_CHG_ENABLE_SW>;
> + summit,fast-voltage-threshold-microvolt = <3000000>;
> + summit,chip-temperature-threshold-celsius = <130>;
> + summit,usb-current-limit-microamp = <1500000>;
> + };
> +};
> +
> +&blsp1_i2c4 {
> + status = "okay";
> +
> + muic: usb-switch@25 {
> + compatible = "siliconmitus,sm5502-muic";
> + reg = <0x25>;
> +
> + interrupts-extended = <&tlmm 67 IRQ_TYPE_EDGE_FALLING>;
> +
> + pinctrl-0 = <&muic_int_default_state>;
> + pinctrl-names = "default";
> + };
> +};
> +
> +&blsp1_i2c5 {
> + status = "okay";
> +
> + touchscreen@48 {
> + compatible = "melfas,mms252", "melfas,mms114";
> + reg = <0x48>;
> + interrupts-extended = <&tlmm 17 IRQ_TYPE_EDGE_FALLING>;
> + touchscreen-size-x = <800>;
> + touchscreen-size-y = <1280>;
> + avdd-supply = <&reg_tsp_3p3v>;
> + vdd-supply = <&reg_tsp_1p8v>;
> + linux,keycodes = <KEY_APPSELECT KEY_BACK>;
> +
> + pinctrl-0 = <&tsp_int_rst_default_state>;
> + pinctrl-names = "default";
> + };
> +};
> +
> +&rpm_requests {
> + regulators {
> + compatible = "qcom,rpm-pm8226-regulators";
> +
> + pm8226_s3: s3 {
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1300000>;
> + };
> +
> + pm8226_s4: s4 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + pm8226_s5: s5 {
> + regulator-min-microvolt = <1150000>;
> + regulator-max-microvolt = <1150000>;
> + };
> +
> + pm8226_l1: l1 {
> + regulator-min-microvolt = <1225000>;
> + regulator-max-microvolt = <1225000>;
> + };
> +
> + pm8226_l2: l2 {
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + pm8226_l3: l3 {
> + regulator-min-microvolt = <750000>;
> + regulator-max-microvolt = <1337500>;
> + regulator-always-on;
> + };
> +
> + pm8226_l4: l4 {
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + pm8226_l5: l5 {
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + };
> +
> + pm8226_l6: l6 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + pm8226_l7: l7 {
> + regulator-min-microvolt = <1850000>;
> + regulator-max-microvolt = <1850000>;
> + };
> +
> + pm8226_l8: l8 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + };
> +
> + pm8226_l9: l9 {
> + regulator-min-microvolt = <2050000>;
> + regulator-max-microvolt = <2050000>;
> + };
> +
> + pm8226_l10: l10 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + pm8226_l12: l12 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + pm8226_l14: l14 {
> + regulator-min-microvolt = <2750000>;
> + regulator-max-microvolt = <2750000>;
> + };
> +
> + pm8226_l15: l15 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + pm8226_l16: l16 {
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3350000>;
> + };
> +
> + pm8226_l17: l17 {
> + regulator-min-microvolt = <2950000>;
> + regulator-max-microvolt = <2950000>;
> +
> + regulator-system-load = <200000>;
> + regulator-allow-set-load;
> + regulator-always-on;
> + };
> +
> + pm8226_l18: l18 {
> + regulator-min-microvolt = <2950000>;
> + regulator-max-microvolt = <2950000>;
> + };
> +
> + pm8226_l19: l19 {
> + regulator-min-microvolt = <2850000>;
> + regulator-max-microvolt = <3000000>;
> + };
> +
> + pm8226_l20: l20 {
> + regulator-min-microvolt = <3075000>;
> + regulator-max-microvolt = <3075000>;
> + };
> +
> + pm8226_l21: l21 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <2950000>;
> + };
> +
> + pm8226_l22: l22 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3000000>;
> + };
> +
> + pm8226_l23: l23 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + pm8226_l24: l24 {
> + regulator-min-microvolt = <1300000>;
> + regulator-max-microvolt = <1350000>;
> + };
> +
> + pm8226_l25: l25 {
> + regulator-min-microvolt = <1775000>;
> + regulator-max-microvolt = <2125000>;
> + };
> +
> + pm8226_l26: l26 {
> + regulator-min-microvolt = <1225000>;
> + regulator-max-microvolt = <1300000>;
> + };
> +
> + pm8226_l27: l27 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> +
> + pm8226_l28: l28 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <2950000>;
> + };
> +
> + pm8226_lvs1: lvs1 {};
> + };
> +};
> +
> +&sdhc_1 {
> + vmmc-supply = <&pm8226_l17>;
> + vqmmc-supply = <&pm8226_l6>;
> +
> + bus-width = <8>;
> + non-removable;
> +
> + status = "okay";
> +};
> +
> +&sdhc_2 {
> + vmmc-supply = <&pm8226_l18>;
> + vqmmc-supply = <&pm8226_l21>;
> +
> + bus-width = <4>;
> + cd-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
> +
> + pinctrl-0 = <&sdhc2_default_state>, <&sdc2_cd_default_state>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> +};
> +
> +&tlmm {
> + accel_int_default_state: accel-int-default-state {
> + pins = "gpio54";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + backlight_i2c_default_state: backlight-i2c-default-state {
> + pins = "gpio20", "gpio21";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + backlight_vddio_default_state: backlight-vddio-default-state {
> + pins = "gpio74";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + charger_int_default_state: charger-int-default-state {
> + pins = "gpio115";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + muic_int_default_state: muic-int-default-state {
> + pins = "gpio67";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + sdc2_cd_default_state: sdc2-cd-default-state {
> + pins = "gpio38";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + tsp_en_default_state: tsp-en-default-state {
> + pins = "gpio31";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + tsp_en1_default_state: tsp-en1-default-state {
> + pins = "gpio114";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-disable;
> + };
> +
> + tsp_int_rst_default_state: tsp-int-rst-default-state {
> + pins = "gpio17";
> + function = "gpio";
> + drive-strength = <10>;
> + bias-pull-up;
> + };
> +};
> +
> +&usb {
> + extcon = <&muic>, <&muic>;
> + status = "okay";
> +};
> +
> +&usb_hs_phy {
> + extcon = <&muic>;
> + v1p8-supply = <&pm8226_l10>;
> + v3p3-supply = <&pm8226_l20>;
> +};