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Message-ID: <128a5f86-dd3f-4e5e-a55f-3c8b5993779b@gmail.com>
Date: Fri, 16 Jan 2026 11:25:50 +0530
From: tessolveupstream@...il.com
To: Jie Gan <jie.gan@....qualcomm.com>, andersson@...nel.org,
konradybcio@...nel.org
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: Re: [PATCH v12 3/3] arm64: dts: qcom: talos-evk: Add support for
QCS615 talos evk board
On 15-01-2026 07:54, Jie Gan wrote:
>
>
> On 1/14/2026 6:00 PM, Sudarshan Shetty wrote:
>> Add the device tree for the QCS615-based Talos EVK platform. The
>> platform is composed of a System-on-Module following the SMARC
>> standard, and a Carrier Board.
>>
>> The Carrier Board supports several display configurations, HDMI and
>> LVDS. Both configurations use the same base hardware, with the display
>> selection controlled by a DIP switch.
>>
>> Use a DTBO file, talos-evk-lvds-auo,g133han01.dtso, which defines an
>> overlay that disables HDMI and adds LVDS. The DTs file talos-evk
>> can describe the HDMI display configurations.
>>
>> The initial device tree includes support for:
>> - CPU and memory
>> - UART
>> - GPIOs
>> - Regulators
>> - PMIC
>> - Early console
>> - AT24MAC602 EEPROM
>> - MCP2515 SPI to CAN
>> - ADV7535 DSI-to-HDMI bridge
>> - DisplayPort interface
>> - SN65DSI84ZXHR DSI-to-LVDS bridge
>> - Wi-Fi/BT
>>
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
>> Signed-off-by: Sudarshan Shetty <tessolveupstream@...il.com>
>> ---
>> arch/arm64/boot/dts/qcom/Makefile | 4 +
>> .../qcom/talos-evk-lvds-auo,g133han01.dtso | 131 ++++
>> arch/arm64/boot/dts/qcom/talos-evk-som.dtsi | 616 ++++++++++++++++++
>> arch/arm64/boot/dts/qcom/talos-evk.dts | 139 ++++
>> 4 files changed, 890 insertions(+)
>> create mode 100644 arch/arm64/boot/dts/qcom/talos-evk-lvds-auo,g133han01.dtso
>> create mode 100644 arch/arm64/boot/dts/qcom/talos-evk-som.dtsi
>> create mode 100644 arch/arm64/boot/dts/qcom/talos-evk.dts
>>
>> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
>> index 76cf0115a00a..289b651ef0c5 100644
>> --- a/arch/arm64/boot/dts/qcom/Makefile
>> +++ b/arch/arm64/boot/dts/qcom/Makefile
>> @@ -324,6 +324,10 @@ dtb-$(CONFIG_ARCH_QCOM) += sm8650-mtp.dtb
>> dtb-$(CONFIG_ARCH_QCOM) += sm8650-qrd.dtb
>> dtb-$(CONFIG_ARCH_QCOM) += sm8750-mtp.dtb
>> dtb-$(CONFIG_ARCH_QCOM) += sm8750-qrd.dtb
>> +dtb-$(CONFIG_ARCH_QCOM) += talos-evk.dtb
>> +talos-evk-lvds-auo,g133han01-dtbs := \
>> + talos-evk.dtb talos-evk-lvds-auo,g133han01.dtbo
>> +dtb-$(CONFIG_ARCH_QCOM) += talos-evk-lvds-auo,g133han01.dtb
>> x1e001de-devkit-el2-dtbs := x1e001de-devkit.dtb x1-el2.dtbo
>> dtb-$(CONFIG_ARCH_QCOM) += x1e001de-devkit.dtb x1e001de-devkit-el2.dtb
>> x1e78100-lenovo-thinkpad-t14s-el2-dtbs := x1e78100-lenovo-thinkpad-t14s.dtb x1-el2.dtbo
>> diff --git a/arch/arm64/boot/dts/qcom/talos-evk-lvds-auo,g133han01.dtso b/arch/arm64/boot/dts/qcom/talos-evk-lvds-auo,g133han01.dtso
>> new file mode 100644
>> index 000000000000..884df2d4f4e1
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/talos-evk-lvds-auo,g133han01.dtso
>> @@ -0,0 +1,131 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +/*
>> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
>> + */
>> +/dts-v1/;
>> +/plugin/;
>> +
>> +#include <dt-bindings/gpio/gpio.h>
>> +
>> +&{/} {
>> + backlight: backlight {
>> + compatible = "gpio-backlight";
>> + gpios = <&tlmm 59 GPIO_ACTIVE_HIGH>,
>> + <&tlmm 115 GPIO_ACTIVE_HIGH>;
>> + default-on;
>> + };
>> +
>> + panel-lvds {
>> + compatible = "auo,g133han01";
>> + power-supply = <&vreg_v3p3>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + /* LVDS A (Odd pixels) */
>> + port@0 {
>> + reg = <0>;
>> + dual-lvds-odd-pixels;
>> +
>> + lvds_panel_out_a: endpoint {
>> + remote-endpoint = <&sn65dsi84_out_a>;
>> + };
>> + };
>> +
>> + /* LVDS B (Even pixels) */
>> + port@1 {
>> + reg = <1>;
>> + dual-lvds-even-pixels;
>> +
>> + lvds_panel_out_b: endpoint {
>> + remote-endpoint = <&sn65dsi84_out_b>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + vreg_v3p3: regulator-v3p3 {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vdd-3v3";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + };
>> +};
>> +
>> +&hdmi_connector {
>> + status = "disabled";
>> +};
>> +
>> +&i2c1 {
>> + clock-frequency = <400000>;
>> +
>> + status = "okay";
>> +
>> + hdmi_bridge: bridge@3d {
>> + status = "disabled";
>> + };
>> +
>> + lvds_bridge: bridge@2c {
>> + compatible = "ti,sn65dsi84";
>> + reg = <0x2c>;
>> + enable-gpios = <&tlmm 42 GPIO_ACTIVE_HIGH>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port@0 {
>> + reg = <0>;
>> +
>> + sn65dsi84_in: endpoint {
>> + data-lanes = <1 2 3 4>;
>> + remote-endpoint = <&mdss_dsi0_out>;
>> + };
>> + };
>> +
>> + port@2 {
>> + reg = <2>;
>> +
>> + sn65dsi84_out_a: endpoint {
>> + data-lanes = <1 2 3 4>;
>> + remote-endpoint = <&lvds_panel_out_a>;
>> + };
>> + };
>> +
>> + port@3 {
>> + reg = <3>;
>> +
>> + sn65dsi84_out_b: endpoint {
>> + data-lanes = <1 2 3 4>;
>> + remote-endpoint = <&lvds_panel_out_b>;
>> + };
>> + };
>> + };
>> + };
>> +};
>> +
>> +&mdss_dsi0 {
>> + vdda-supply = <&vreg_l11a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&mdss_dsi0_out {
>> + remote-endpoint = <&sn65dsi84_in>;
>> + data-lanes = <0 1 2 3>;
>> +};
>> +
>> +&tlmm {
>> + lcd_bklt_en: lcd-bklt-en-state {
>> + pins = "gpio115";
>> + function = "gpio";
>> + bias-disable;
>> + };
>> +
>> + lcd_bklt_pwm: lcd-bklt-pwm-state {
>> + pins = "gpio59";
>> + function = "gpio";
>> + bias-disable;
>> + };
>> +};
>> diff --git a/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi b/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi
>> new file mode 100644
>> index 000000000000..95ed335bcb08
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/talos-evk-som.dtsi
>> @@ -0,0 +1,616 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +/*
>> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
>> + */
>> +/dts-v1/;
>> +
>> +#include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>> +#include "talos.dtsi"
>> +#include "pm8150.dtsi"
>
> <...>
>
>> +
>> +&usb_1 {
>> + status = "okay";
>> +};
>> +
>> +&usb_1_dwc3 {
>> + dr_mode = "host";
>> +};
>> +
>> +&usb_hsphy_1 {
>> + vdd-supply = <&vreg_l5a>;
>> + vdda-pll-supply = <&vreg_l12a>;
>> + vdda-phy-dpdm-supply = <&vreg_l13a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&usb_2 {
>> + status = "okay";
>> +};
>> +
>> +&usb_2_dwc3 {
>> + dr_mode = "host";
>> +};
>
> Both usb devices have been configured to host mode, do we need adb?
> The adb only work with usb peripheral mode.
>
This topic was discussed previously, and the fix was implemented
based on that discussion.
For reference, I’m sharing the earlier communication in the
links below.
https://lore.kernel.org/all/qq4aak33bn3mqxd2edu6zgkkshby63mmitg7zqkly2rj4c2lh7@4s7sndb7e2jr/T/#meaa464a4e6992b36b5d8d41ddc691ee4ea36b1ce
https://lore.kernel.org/all/20251014120223.1914790-1-tessolveupstream@gmail.com/T/#t
> Thanks,
> Jie
>
>> +
>> +&usb_hsphy_2 {
>> + vdd-supply = <&vreg_l5a>;
>> + vdda-pll-supply = <&vreg_l12a>;
>> + vdda-phy-dpdm-supply = <&vreg_l13a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&usb_qmpphy {
>> + vdda-phy-supply = <&vreg_l5a>;
>> + vdda-pll-supply = <&vreg_l12a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&usb_qmpphy_2 {
>> + vdda-phy-supply = <&vreg_l11a>;
>> + vdda-pll-supply = <&vreg_l5a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&ufs_mem_hc {
>> + reset-gpios = <&tlmm 123 GPIO_ACTIVE_LOW>;
>> + vcc-supply = <&vreg_l17a>;
>> + vcc-max-microamp = <600000>;
>> + vccq2-supply = <&vreg_s4a>;
>> + vccq2-max-microamp = <600000>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&ufs_mem_phy {
>> + vdda-phy-supply = <&vreg_l5a>;
>> + vdda-pll-supply = <&vreg_l12a>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&venus {
>> + status = "okay";
>> +};
>> diff --git a/arch/arm64/boot/dts/qcom/talos-evk.dts b/arch/arm64/boot/dts/qcom/talos-evk.dts
>> new file mode 100644
>> index 000000000000..af100e22beee
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/talos-evk.dts
>> @@ -0,0 +1,139 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +/*
>> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
>> + */
>> +/dts-v1/;
>> +
>> +#include "talos-evk-som.dtsi"
>> +
>> +/ {
>> + model = "Qualcomm QCS615 IQ 615 EVK";
>> + compatible = "qcom,talos-evk", "qcom,qcs615", "qcom,sm6150";
>> + chassis-type = "embedded";
>> +
>> + aliases {
>> + mmc1 = &sdhc_2;
>> + };
>> +
>> + dp0-connector {
>> + compatible = "dp-connector";
>> + label = "DP0";
>> + type = "full-size";
>> +
>> + hpd-gpios = <&tlmm 104 GPIO_ACTIVE_HIGH>;
>> +
>> + port {
>> + dp0_connector_in: endpoint {
>> + remote-endpoint = <&mdss_dp0_out>;
>> + };
>> + };
>> + };
>> +
>> + hdmi_connector: hdmi-out {
>> + compatible = "hdmi-connector";
>> + type = "d";
>> +
>> + port {
>> + hdmi_con_out: endpoint {
>> + remote-endpoint = <&adv7535_out>;
>> + };
>> + };
>> + };
>> +
>> + vreg_v1p8_out: regulator-v1p8-out {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vreg-v1p8-out";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + vin-supply = <&vreg_v5p0_out>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + vreg_v3p3_out: regulator-v3p3-out {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vreg-v3p3-out";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + vin-supply = <&vreg_v5p0_out>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> + vreg_v5p0_out: regulator-v5p0-out {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vreg-v5p0-out";
>> + regulator-min-microvolt = <5000000>;
>> + regulator-max-microvolt = <5000000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + /* Powered by system 20V rail (USBC_VBUS_IN) */
>> + };
>> +};
>> +
>> +&i2c1 {
>> + clock-frequency = <400000>;
>> + status = "okay";
>> +
>> + hdmi_bridge: bridge@3d {
>> + compatible = "adi,adv7535";
>> + reg = <0x3d>;
>> + avdd-supply = <&vreg_v1p8_out>;
>> + dvdd-supply = <&vreg_v1p8_out>;
>> + pvdd-supply = <&vreg_v1p8_out>;
>> + a2vdd-supply = <&vreg_v1p8_out>;
>> + v3p3-supply = <&vreg_v3p3_out>;
>> + interrupts-extended = <&tlmm 26 IRQ_TYPE_LEVEL_LOW>;
>> + adi,dsi-lanes = <4>;
>> +
>> + ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port@0 {
>> + reg = <0>;
>> +
>> + adv7535_in: endpoint {
>> + remote-endpoint = <&mdss_dsi0_out>;
>> + };
>> + };
>> +
>> + port@1 {
>> + reg = <1>;
>> +
>> + adv7535_out: endpoint {
>> + remote-endpoint = <&hdmi_con_out>;
>> + };
>> + };
>> + };
>> + };
>> +};
>> +
>> +&mdss_dsi0_out {
>> + remote-endpoint = <&adv7535_in>;
>> + data-lanes = <0 1 2 3>;
>> +};
>> +
>> +&pon_pwrkey {
>> + status = "okay";
>> +};
>> +
>> +&pon_resin {
>> + linux,code = <KEY_VOLUMEDOWN>;
>> +
>> + status = "okay";
>> +};
>> +
>> +&sdhc_2 {
>> + pinctrl-0 = <&sdc2_state_on>;
>> + pinctrl-1 = <&sdc2_state_off>;
>> + pinctrl-names = "default", "sleep";
>> +
>> + bus-width = <4>;
>> + cd-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>;
>> +
>> + vmmc-supply = <&vreg_l10a>;
>> + vqmmc-supply = <&vreg_s4a>;
>> +
>> + status = "okay";
>> +};
>
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