linux-kernel - Re: [PATCH v3 4/4] arm64: dts: apple: t8103: Add cd321x nodes

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Message-Id: <f1fefe77-2d19-434b-9fd4-d1c51e46cd5b@www.fastmail.com>
Date:   Tue, 23 Nov 2021 12:56:26 +0100
From:   "Sven Peter" <sven@...npeter.dev>
To:     "Janne Grunau" <j@...nau.net>, "Hector Martin" <marcan@...can.st>,
        "Alyssa Rosenzweig" <alyssa@...enzweig.io>,
        "Rob Herring" <robh+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] arm64: dts: apple: t8103: Add cd321x nodes



On Mon, Nov 22, 2021, at 23:58, Janne Grunau wrote:
> All M1 Mac devices have 2 SoC connected USB-C ports and use cd321x USB
> type C port switch and power deliver controllers. I2c bus and adresses
> configuration are for all devices equal.
> The iMac (24-inch, 2021) has a configuration with 2 additional USB-C
> ports (j456) using two addiotional cd321x controllers.
>
> Signed-off-by: Janne Grunau <j@...nau.net>
> ---
>  arch/arm64/boot/dts/apple/t8103-j456.dts  | 18 ++++++++++++++++++
>  arch/arm64/boot/dts/apple/t8103-jxxx.dtsi | 18 ++++++++++++++++++
>  2 files changed, 36 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/apple/t8103-j456.dts 
> b/arch/arm64/boot/dts/apple/t8103-j456.dts
> index 7267e069355b..c6b8c28455f5 100644
> --- a/arch/arm64/boot/dts/apple/t8103-j456.dts
> +++ b/arch/arm64/boot/dts/apple/t8103-j456.dts
> @@ -21,6 +21,24 @@ aliases {
>  	};
>  };
> 
> +&i2c0 {
> +	hpm2: tps6598x@3b {

I know that the tps example in the binding uses tps6598x as the node name
but I think that these names are usually more general. Maybe usb-pd@3b
instead which is used in arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
and reflects the function of this device.

With that fixed:

Reviewed-by: Sven Peter <sven@...npeter.dev>


Thanks,

Sven