linux-kernel - Re: [PATCH v9 3/3] arm64: dts: qcom: Add base HAMOA-IOT-EVK board

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Message-ID: <eneg3nxaatpiqvujxnvfexwdgb7mufoi3qn6pjsxh42e4n3tqz@npvgjdh5cu5h>
Date: Thu, 4 Sep 2025 16:58:18 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Yijie Yang <yijie.yang@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 3/3] arm64: dts: qcom: Add base HAMOA-IOT-EVK board

On Thu, Sep 04, 2025 at 03:48:34PM +0800, Yijie Yang wrote:
> The HAMOA-IOT-EVK is an evaluation platform for IoT products, composed of
> the Hamoa IoT SoM and a carrier board. Together, they form a complete
> embedded system capable of booting to UART.
> 
> This change enables the following peripherals on the carrier board:
> - UART
> - On-board regulators
> - USB Type-C mux
> - Pinctrl
> - Embedded USB (EUSB) repeaters
> - NVMe
> - pmic-glink
> - USB DisplayPorts
> - Bluetooth

WiFi

> - Graphic
> - Audio
> 
> Written in collaboration with Quill Qi (Audio) <le.qi@....qualcomm.com>,
> Jie Zhang (Graphics) <quic_jiezh@...cinc.com>, Shuai Zhang (Bluetooth)
> <quic_shuaz@...cinc.com>, and Yongxing Mou (USB DisplayPorts)
> <quic_yongmou@...cinc.com>.
> 
> Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile          |    1 +
>  arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 1248 ++++++++++++++++++++++++++++
>  2 files changed, 1249 insertions(+)

> +
> +&gpu {
> +	status = "okay";
> +};
> +
> +&gpu_zap_shader {
> +	firmware-name = "qcom/x1e80100/gen70500_zap.mbn";
> +};

Why do we have DSPs in the SoM, while GPU is enabled only in the board
file?

> +

-- 
With best wishes
Dmitry