linux-kernel - Re: [PATCH v3 1/2] arm64: dts: mediatek: add i2c support for mt8365 SoC

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Message-ID: <ff81cce8-9203-f90c-5a23-2d1c09fe4267@collabora.com>
Date:   Tue, 7 Mar 2023 10:43:53 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Alexandre Mergnat <amergnat@...libre.com>,
        Qii Wang <qii.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-i2c@...r.kernel.org, Fabien Parent <fparent@...libre.com>,
        devicetree@...r.kernel.org, Rob Herring <robh@...nel.org>,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v3 1/2] arm64: dts: mediatek: add i2c support for mt8365
 SoC

Il 06/03/23 14:47, Alexandre Mergnat ha scritto:
> There are four I2C master channels in MT8365 with a same HW architecture.
> 
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8365.dtsi | 52 ++++++++++++++++++++++++++++++++
>   1 file changed, 52 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> index 15ac4c1f0966..553c7516406a 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> @@ -282,6 +282,45 @@ pwm: pwm@...06000 {
>   			clock-names = "top", "main", "pwm1", "pwm2", "pwm3";
>   		};
>   
> +		i2c0: i2c@...07000 {
> +			compatible = "mediatek,mt8365-i2c", "mediatek,mt8168-i2c";
> +			reg = <0 0x11007000 0 0xa0>, <0 0x11000080 0 0x80>;
> +			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_LOW>;
> +			clock-div = <1>;
> +			clocks = <&infracfg CLK_IFR_I2C0_AXI>,
> +				 <&infracfg CLK_IFR_AP_DMA>;

You can compress the clocks to one single line, reaching 91 columns, on all of the
new i2c nodes that you're introducing. Please do that.

With that done:

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Regards,
Angelo