linux-kernel - Re: [RFC PATCH v3 05/11] ARM: dts: bcm2711: Add unicam CSI nodes

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Date:   Wed, 2 Feb 2022 19:24:06 +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
Subject: Re: [RFC PATCH v3 05/11] ARM: dts: bcm2711: Add unicam CSI nodes

Hi Jean-Michel,

Am 02.02.22 um 18:56 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>
this patch needs an Ack from the BCM2835 maintainer(s), so please
include them. scripts/get_maintainers.pl is your friend.
> ---
>  arch/arm/boot/dts/bcm2711.dtsi | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index dff18fc9a906..9ad50d4c0c16 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -3,6 +3,7 @@
>  
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/soc/bcm2835-pm.h>
> +#include <dt-bindings/power/raspberrypi-power.h>
The file bcm2711.dtsi is reserved for the BCM2711 SoC and shouldn't used
for board specific stuff. So please ...
>  
>  / {
>  	compatible = "brcm,bcm2711";
> @@ -293,6 +294,30 @@ hvs: hvs@...00000 {
>  			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
>  		};
>  
> +		csi0: csi@...00000 {
> +			compatible = "brcm,bcm2835-unicam";
> +			reg = <0x7e800000 0x800>,
> +			      <0x7e802000 0x4>;
> +			interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clocks BCM2835_CLOCK_CAM0>,
> +				 <&firmware_clocks 4>;
> +			clock-names = "lp", "vpu";
> +			power-domains = <&power RPI_POWER_DOMAIN_UNICAM0>;
move clocks property & power-domains property from this node and
> +			status = "disabled";
> +		};
> +
> +		csi1: csi@...01000 {
> +			compatible = "brcm,bcm2835-unicam";
> +			reg = <0x7e801000 0x800>,
> +			      <0x7e802004 0x4>;
> +			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clocks BCM2835_CLOCK_CAM1>,
> +				 <&firmware_clocks 4>;
> +			clock-names = "lp", "vpu";
> +			power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>;

from this node to bcm2711-rpi.dtsi.

Best regards

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