linux-kernel - Re: [PATCH v3 5/5] arm64: dts: qcom: talos-evk-camera: Add DT overlay

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Message-ID: <3b16ffa2-1580-426c-aa9c-f377d913d49c@linaro.org>
Date: Fri, 16 Jan 2026 11:12:07 +0200
From: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
To: Wenmeng Liu <wenmeng.liu@....qualcomm.com>,
 Loic Poulain <loic.poulain@....qualcomm.com>,
 Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Robert Foss <rfoss@...nel.org>,
 Todor Tomov <todor.too@...il.com>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-media@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 5/5] arm64: dts: qcom: talos-evk-camera: Add DT overlay

On 1/15/26 12:12, Wenmeng Liu wrote:
> Enable IMX577 via CCI on Taloss EVK Core Kit.
> 
> The Talos EVK board does not include a camera sensor
> by default, this DTSO has enabled the Arducam 12.3MP
> IMX577 Mini Camera Module on the CSI-1 interface.
> 
> Signed-off-by: Wenmeng Liu <wenmeng.liu@....qualcomm.com>
> ---
>   arch/arm64/boot/dts/qcom/Makefile                  |  3 ++
>   .../boot/dts/qcom/talos-evk-camera-imx577.dtso     | 63 ++++++++++++++++++++++
>   2 files changed, 66 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 00652614e73582fa9bd5fbeff4836b9496721d2d..be9aeff2cd1555bc436e1b8eb78d8e1c9b84f9c4 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -339,8 +339,11 @@ 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
> +dtbo-$(CONFIG_ARCH_QCOM)	+= talos-evk-camera-imx577.dtbo

Please remind me, what does dtbo-y Makefile target serve for?

> +talos-evk-camera-imx577-dtbs	:= talos-evk.dtb talos-evk-camera-imx577.dtbo
>   talos-evk-lvds-auo,g133han01-dtbs	:= \
>   	talos-evk.dtb talos-evk-lvds-auo,g133han01.dtbo
> +dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-camera-imx577.dtb
>   dtb-$(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
> diff --git a/arch/arm64/boot/dts/qcom/talos-evk-camera-imx577.dtso b/arch/arm64/boot/dts/qcom/talos-evk-camera-imx577.dtso
> new file mode 100644
> index 0000000000000000000000000000000000000000..53006a861878f9112673b9a0ad954bed7a5fdca5
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/talos-evk-camera-imx577.dtso
> @@ -0,0 +1,63 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +#include <dt-bindings/clock/qcom,qcs615-camcc.h>
> +#include <dt-bindings/gpio/gpio.h>
> +
> +&camss {
> +	vdd-csiphy-1p2-supply = <&vreg_l11a>;
> +	vdd-csiphy-1p8-supply = <&vreg_l12a>;
> +
> +	status = "okay";
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port@1 {
> +			reg = <1>;
> +
> +			csiphy1_ep: endpoint {
> +				data-lanes = <0 1 2 3>;
> +				remote-endpoint = <&imx577_ep1>;
> +			};
> +		};
> +	};
> +};
> +
> +&cci {
> +	status = "okay";
> +};
> +
> +&cci_i2c1 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	camera@1a {
> +		compatible = "sony,imx577";
> +		reg = <0x1a>;
> +
> +		reset-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
> +		pinctrl-0 = <&cam2_default>;
> +		pinctrl-names = "default";
> +
> +		clocks = <&camcc CAM_CC_MCLK2_CLK>;
> +		assigned-clocks = <&camcc CAM_CC_MCLK2_CLK>;
> +		assigned-clock-rates = <24000000>;
> +
> +		avdd-supply = <&vreg_s4a>;
> +
> +		port {
> +			imx577_ep1: endpoint {
> +				link-frequencies = /bits/ 64 <600000000>;
> +				data-lanes = <1 2 3 4>;
> +				remote-endpoint = <&csiphy1_ep>;
> +			};
> +		};
> +	};
> +};
> 

Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>

-- 
Best wishes,
Vladimir