linux-kernel - Re: [PATCH 1/4] arm64: dts: ls1088a: Fix incorrect I2C clock divider

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Date:   Mon, 12 Aug 2019 16:17:24 +0200
From:   Shawn Guo <shawnguo@...nel.org>
To:     Chuanhua Han <chuanhua.han@....com>
Cc:     leoyang.li@....com, robh+dt@...nel.org, mark.rutland@....com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] arm64: dts: ls1088a: Fix incorrect I2C clock divider

On Tue, Aug 06, 2019 at 04:42:20PM +0800, Chuanhua Han wrote:
> Ls1088a platform, the i2c input clock is actually platform pll CLK / 8
> (this is the hardware connection), other clock divider can not get the
> correct i2c clock, resulting in the output of SCL pin clock is not
> accurate.
> 
> Signed-off-by: Chuanhua Han <chuanhua.han@....com>

@Leo, looks good?

Shawn

> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> index 20f5ebd..30b760e 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> @@ -324,7 +324,7 @@
>  			#size-cells = <0>;
>  			reg = <0x0 0x2000000 0x0 0x10000>;
>  			interrupts = <0 34 IRQ_TYPE_LEVEL_HIGH>;
> -			clocks = <&clockgen 4 3>;
> +			clocks = <&clockgen 4 7>;
>  			status = "disabled";
>  		};
>  
> @@ -334,7 +334,7 @@
>  			#size-cells = <0>;
>  			reg = <0x0 0x2010000 0x0 0x10000>;
>  			interrupts = <0 34 IRQ_TYPE_LEVEL_HIGH>;
> -			clocks = <&clockgen 4 3>;
> +			clocks = <&clockgen 4 7>;
>  			status = "disabled";
>  		};
>  
> @@ -344,7 +344,7 @@
>  			#size-cells = <0>;
>  			reg = <0x0 0x2020000 0x0 0x10000>;
>  			interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>;
> -			clocks = <&clockgen 4 3>;
> +			clocks = <&clockgen 4 7>;
>  			status = "disabled";
>  		};
>  
> @@ -354,7 +354,7 @@
>  			#size-cells = <0>;
>  			reg = <0x0 0x2030000 0x0 0x10000>;
>  			interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>;
> -			clocks = <&clockgen 4 3>;
> +			clocks = <&clockgen 4 7>;
>  			status = "disabled";
>  		};
>  
> -- 
> 2.9.5
>