linux-kernel - Re: [PATCH 2/2] arm64: dts: mediatek: mt7988: add I2C controllers

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Message-ID: <703cfd0b-5d16-4888-bcc5-5742ee16fd29@collabora.com>
Date: Mon, 3 Jun 2024 09:37:42 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Rafał Miłecki <zajec5@...il.com>,
 Matthias Brugger <matthias.bgg@...il.com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 2/2] arm64: dts: mediatek: mt7988: add I2C controllers

Il 05/04/24 14:55, Rafał Miłecki ha scritto:
> From: Rafał Miłecki <rafal@...ecki.pl>
> 
> MT7988 has three on-SoC I2C controllers that are the same hardware
> blocks as already noticed on MT7981 chipsets.
> 
> Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
> ---
>   arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 45 +++++++++++++++++++++++
>   1 file changed, 45 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
> index 27098f724b7a..b4dc81881cc7 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
> @@ -124,6 +124,51 @@ pwm@...48000 {
>   			status = "disabled";
>   		};
>   
> +		i2c@...03000 {
> +			compatible = "mediatek,mt7981-i2c";
> +			reg = <0 0x11003000 0 0x1000>,
> +			      <0 0x10217080 0 0x80>;
> +			interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&infracfg CLK_INFRA_I2C_BCK>,
> +				 <&infracfg CLK_INFRA_66M_AP_DMA_BCK>;
> +			clock-names = "main", "dma";
> +			clock-div = <1>;
> +			clock-frequency = <100000>;

As commented on 7981, please remove clock-div/frequency from SoC wide DTs.

Cheers,
Angelo