linux-kernel - Re: [RFC PATCH v4 06/12] ARM: dts: bcm2711: Add unicam CSI nodes

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Message-ID: <cb9f24bd-3352-279b-0667-d56bd2aefdd5@i2se.com>
Date:   Thu, 3 Feb 2022 21:06:27 +0100
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
Cc:     dave.stevenson@...pberrypi.com, devicetree@...r.kernel.org,
        kernel-list@...pberrypi.com, laurent.pinchart@...asonboard.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        lukasz@...y.st, mchehab@...nel.org, naush@...pberrypi.com,
        robh@...nel.org, tomi.valkeinen@...asonboard.com,
        nsaenz@...nel.org, bcm-kernel-feedback-list@...adcom.com
Subject: Re: [RFC PATCH v4 06/12] ARM: dts: bcm2711: Add unicam CSI nodes

Hi Jean-Michel,

Am 03.02.22 um 18:50 schrieb Jean-Michel Hautbois:
> Add both MIPI CSI-2 nodes in the core bcm2711 tree. Use the 3-cells
> interrupt declaration, corresponding clocks and default as disabled.
>
> Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
> ---
>  arch/arm/boot/dts/bcm2711-rpi.dtsi | 15 +++++++++++++++
>  arch/arm/boot/dts/bcm2711.dtsi     | 16 ++++++++++++++++
>  2 files changed, 31 insertions(+)
>
> diff --git a/arch/arm/boot/dts/bcm2711-rpi.dtsi b/arch/arm/boot/dts/bcm2711-rpi.dtsi
> index ca266c5d9f9b..97ee494891af 100644
> --- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
> +++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
> @@ -1,6 +1,7 @@
>  // SPDX-License-Identifier: GPL-2.0
>  #include "bcm2835-rpi.dtsi"
>  
> +#include <dt-bindings/power/raspberrypi-power.h>
>  #include <dt-bindings/reset/raspberrypi,firmware-reset.h>
>  
>  / {
> @@ -18,6 +19,20 @@ aliases {
>  	};
>  };
>  
> +&csi0 {
> +	clocks = <&clocks BCM2835_CLOCK_CAM0>,
> +		 <&firmware_clocks 4>;
> +	clock-names = "lp", "vpu";
> +	power-domains = <&power RPI_POWER_DOMAIN_UNICAM0>;
> +};
> +
> +&csi1 {
> +	clocks = <&clocks BCM2835_CLOCK_CAM1>,
> +		 <&firmware_clocks 4>;
> +	clock-names = "lp", "vpu";
> +	power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>;
> +};
> +
>  &firmware {
>  	firmware_clocks: clocks {
>  		compatible = "raspberrypi,firmware-clocks";
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index dff18fc9a906..312a74601839 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -293,6 +293,22 @@ hvs: hvs@...00000 {
>  			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
>  		};
>  
> +		csi0: csi@...00000 {
> +			compatible = "brcm,bcm2835-unicam";
> +			reg = <0x7e800000 0x800>,
> +			      <0x7e802000 0x4>;
after you added the reg-names to the binding, please don't forget to add
them here ...
> +			interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		csi1: csi@...01000 {
> +			compatible = "brcm,bcm2835-unicam";
> +			reg = <0x7e801000 0x800>,
> +			      <0x7e802004 0x4>;

and here. Otherwise this looks good to me.

Best regards

> +			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
>  		pixelvalve3: pixelvalve@...12000 {
>  			compatible = "brcm,bcm2711-pixelvalve3";
>  			reg = <0x7ec12000 0x100>;