linux-kernel - Re: [PATCH v1] ARM: dts: aspeed: yosemite4: add I3C config in DTS

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Message-ID: <3903300d-9d5b-44b3-95fa-0579e5421071@kernel.org>
Date: Mon, 6 May 2024 17:38:11 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>, patrick@...cx.xyz,
 joel@....id.au, openbmc@...ts.ozlabs.org, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Andrew Jeffery <andrew@...econstruct.com.au>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] ARM: dts: aspeed: yosemite4: add I3C config in DTS

On 06/05/2024 13:33, Delphine CC Chiu wrote:
> Set I3C config in yosemite4 DTS.
> 
> Test plan:
> Tested with aspeed I3C patches and I3C hub driver.
> 
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
> ---
>  .../aspeed/aspeed-bmc-facebook-yosemite4.dts  | 86 +++++++++++++++++++
>  1 file changed, 86 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> index 64075cc41d92..6a30c424d745 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
> @@ -595,6 +595,92 @@ i2c-mux@72 {
>  	};
>  };
>  
> +&i3c0 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i3c1_default>;
> +	i3c-pp-scl-hi-period-ns = <40>;
> +	i3c-pp-scl-lo-period-ns = <40>;
> +	i3c-od-scl-hi-period-ns = <380>;
> +	i3c-od-scl-lo-period-ns = <620>;
> +	sda-tx-hold-ns = <10>;
> +
> +	mctp-controller;
> +	hub@...0 {

That's not a valid unit address.


> +		reg = <0x70 0x3c0 0x00700000>;
> +		cp0-ldo-en = "enabled";
> +		cp1-ldo-en = "enabled";
> +		cp0-ldo-volt = "1.2V";
> +		cp1-ldo-volt = "1.2V";
> +		tp0145-ldo-en = "enabled";
> +		tp2367-ldo-en = "enabled";
> +		tp0145-ldo-volt = "1.2V";
> +		tp2367-ldo-volt = "1.2V";
> +		tp0145-pullup = "2k";
> +		tp2367-pullup = "2k";

Where are bindings for all this?



Best regards,
Krzysztof