linux-kernel - RE: [RESEND 1/4] arm64: dts: lx2160a: add ftm

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Message-ID: <DB6PR0401MB2438A8B634DBE15FADD3CFB18FA20@DB6PR0401MB2438.eurprd04.prod.outlook.com>
Date:   Fri, 8 May 2020 09:35:47 +0000
From:   "Biwen Li (OSS)" <biwen.li@....nxp.com>
To:     Shawn Guo <shawnguo@...nel.org>,
        "Biwen Li (OSS)" <biwen.li@....nxp.com>
CC:     Ran Wang <ran.wang_1@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jiafei Pan <jiafei.pan@....com>
Subject: RE: [RESEND 1/4] arm64: dts: lx2160a: add ftm_alarm0 DT node

> 
> On Tue, Apr 07, 2020 at 02:42:48PM +0800, Biwen Li wrote:
> > From: Biwen Li <biwen.li@....com>
> >
> > The patch adds ftm_alarm0 DT node for Soc LX2160A
> > FlexTimer1 module is used to wakeup the system in deep sleep
> >
> > Signed-off-by: Biwen Li <biwen.li@....com>
> > ---
> >  arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 18
> > ++++++++++++++++++
> >  1 file changed, 18 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> > b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> > index e5ee5591e52b..e0d8d68ce070 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> > @@ -16,6 +16,10 @@
> >  	#address-cells = <2>;
> >  	#size-cells = <2>;
> >
> > +	aliases {
> > +		rtc1 = &ftm_alarm0;
> > +	};
> > +
> >  	cpus {
> >  		#address-cells = <1>;
> >  		#size-cells = <0>;
> > @@ -768,6 +772,20 @@
> >  			timeout-sec = <30>;
> >  		};
> >
> > +		rcpm: rcpm@...4040 {
> 
> Keep the node sort in unit-address.  Also, try to use a generic node name.
Hi Shawn,
Sorry for late reply.
The node sort will be updated in v2.
rcpm is called as Run Control and Power Management. Don't
Have a generic node name, any suggestions?

> 
> Shawn
> 
> > +			compatible = "fsl,lx2160a-rcpm", "fsl,qoriq-rcpm-2.1+";
> > +			reg = <0x0 0x1e34040 0x0 0x1c>;
> > +			#fsl,rcpm-wakeup-cells = <7>;
> > +			little-endian;
> > +		};
> > +
> > +		ftm_alarm0: timer@...0000 {
> > +			compatible = "fsl,lx2160a-ftm-alarm";
> > +			reg = <0x0 0x2800000 0x0 0x10000>;
> > +			fsl,rcpm-wakeup = <&rcpm 0x0 0x0 0x0 0x0 0x4000 0x0 0x0>;
> > +			interrupts = <0 44 4>;
> 
> IRQ_TYPE_LEVEL_HIGH
Got it, thanks. Will replace it in v2.
> 
> Shawn
> 
> > +		};
> > +
> >  		usb0: usb@...0000 {
> >  			compatible = "snps,dwc3";
> >  			reg = <0x0 0x3100000 0x0 0x10000>;
> > --
> > 2.17.1
> >