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Message-ID: <c0e10cbf-c6f3-4b0c-8616-983da2a40236@linaro.org>
Date: Wed, 13 Mar 2024 14:04:45 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Sumit Garg <sumit.garg@...aro.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org
Cc: andersson@...nel.org, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, stephan@...hold.net,
 caleb.connolly@...aro.org, neil.armstrong@...aro.org,
 laetitia.mariottini@...com, pascal.eberhard@...com, abdou.saker@...com,
 jimmy.lalande@...com, benjamin.missey@....se.com,
 daniel.thompson@...aro.org, linux-kernel@...r.kernel.org,
 Jagdish Gediya <jagdish.gediya@...aro.org>
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: apq8016: Add Schneider HMIBSC
 board DTS



On 3/13/24 13:30, Sumit Garg wrote:
> Add Schneider Electric HMIBSC board DTS. The HMIBSC board is an IIoT Edge
> Box Core board based on the Qualcomm APQ8016E SoC.
> 
> Support for Schneider Electric HMIBSC. Features:
> - Qualcomm Snapdragon 410C SoC - APQ8016 (4xCortex A53, Adreno 306)
> - 1GiB RAM
> - 8GiB eMMC, SD slot
> - WiFi and Bluetooth
> - 2x Host, 1x Device USB port
> - HDMI
> - Discrete TPM2 chip over SPI
> - USB ethernet adaptors (soldered)
> 
> Co-developed-by: Jagdish Gediya <jagdish.gediya@...aro.org>
> Signed-off-by: Jagdish Gediya <jagdish.gediya@...aro.org>
> Signed-off-by: Sumit Garg <sumit.garg@...aro.org>
> ---

[...]

> +	memory@...00000 {
> +		reg = <0 0x80000000 0 0x40000000>;
> +	};

I'm not sure the entirety of DRAM is accessible..

This override should be unnecessary, as bootloaders generally update
the size field anyway.

> +
> +	reserved-memory {
> +		ramoops@...00000 {
> +			compatible = "ramoops";
> +			reg = <0x0 0xbff00000 0x0 0x100000>;
> +
> +			record-size = <0x20000>;
> +			console-size = <0x20000>;
> +			ftrace-size = <0x20000>;

No ecc?

> +		};
> +	};
> +
> +	usb2513 {

Please use a generic node name, like usb-hub and keep the nodes
sorted.

> +		compatible = "smsc,usb3503";
> +		reset-gpios = <&pm8916_gpios 1 GPIO_ACTIVE_LOW>;
> +		initial-mode = <1>;
> +	};
> +
> +	usb_id: usb-id {
> +		compatible = "linux,extcon-usb-gpio";
> +		id-gpios = <&tlmm 110 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&usb_id_default>;

property-n
property-names

[...]

> +		led@5 {
> +			reg = <5>;
> +			label = "apq8016-hmibsc:green:wlan";

These names look overly complicated.. s/apq8016-hmibsc://g?


> +
> +&blsp_i2c3 {
> +	status = "okay";
> +
> +	eeprom@50 {
> +		compatible = "atmel,24c32";
> +		reg = <0x50>;
> +	};
> +};
> +
> +&blsp_i2c4 {
> +	status = "okay";
> +
> +	adv_bridge: bridge@39 {
> +		status = "okay";

???

> +
> +		compatible = "adi,adv7533";
> +		reg = <0x39>;
> +
> +		interrupt-parent = <&tlmm>;
> +		interrupts = <31 IRQ_TYPE_EDGE_FALLING>;

interrupts-extended

Konrad

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