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

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Message-ID: <VE1PR04MB66871BA9508765C03449E2598FD30@VE1PR04MB6687.eurprd04.prod.outlook.com>
Date:   Mon, 12 Aug 2019 20:59:24 +0000
From:   Leo Li <leoyang.li@....com>
To:     Shawn Guo <shawnguo@...nel.org>,
        Chuanhua Han <chuanhua.han@....com>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 1/4] arm64: dts: ls1088a: Fix incorrect I2C clock divider



> -----Original Message-----
> From: Shawn Guo <shawnguo@...nel.org>
> Sent: Monday, August 12, 2019 9:17 AM
> To: Chuanhua Han <chuanhua.han@....com>
> Cc: Leo Li <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?

Yes.

Acked-by: Li Yang <leoyang.li@....com>

> 
> 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
> >