linux-kernel - Re: [PATCH v2 2/8] arm64: dts: ls1028a: add ftm

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Message-ID: <20211214054619.GI10916@dragon>
Date:   Tue, 14 Dec 2021 13:46:23 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Li Yang <leoyang.li@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Biwen Li <biwen.li@....com>
Subject: Re: [PATCH v2 2/8] arm64: dts: ls1028a: add ftm_alarm1 node to be
 used as wakeup source

On Fri, Dec 03, 2021 at 06:17:12PM -0600, Li Yang wrote:
> From: Biwen Li <biwen.li@....com>
> 
> Add flextimer2 based ftm_alarm1 node and enable it to be the default rtc
> wakeup source for rdb and qds boards instead of the original flextimer1
> based ftm_alarm0.  The ftm_alarm0 node hence is disabled by default.

What's wrong with using ftm_alarm0?

Shawn

> 
> Signed-off-by: Biwen Li <biwen.li@....com>
> Signed-off-by: Li Yang <leoyang.li@....com>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 6 +++++-
>  arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 6 +++++-
>  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi    | 9 +++++++++
>  3 files changed, 19 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> index 6e2a1da662fb..00d5b81bdef3 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
> @@ -25,7 +25,7 @@ aliases {
>  		serial1 = &duart1;
>  		mmc0 = &esdhc;
>  		mmc1 = &esdhc1;
> -		rtc1 = &ftm_alarm0;
> +		rtc1 = &ftm_alarm1;
>  	};
>  
>  	chosen {
> @@ -234,6 +234,10 @@ mt35xu02g0: flash@0 {
>  	};
>  };
>  
> +&ftm_alarm1 {
> +	status = "okay";
> +};
> +
>  &i2c0 {
>  	status = "okay";
>  
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> index 7719f44bcaed..41900d351a92 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> @@ -21,7 +21,7 @@ aliases {
>  		serial1 = &duart1;
>  		mmc0 = &esdhc;
>  		mmc1 = &esdhc1;
> -		rtc1 = &ftm_alarm0;
> +		rtc1 = &ftm_alarm1;
>  	};
>  
>  	chosen {
> @@ -132,6 +132,10 @@ mt35xu02g0: flash@0 {
>  	};
>  };
>  
> +&ftm_alarm1 {
> +	status = "okay";
> +};
> +
>  &i2c0 {
>  	status = "okay";
>  
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 9efcaf68578c..ef9d17df2afa 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -1198,6 +1198,15 @@ ftm_alarm0: timer@...0000 {
>  			reg = <0x0 0x2800000 0x0 0x10000>;
>  			fsl,rcpm-wakeup = <&rcpm 0x0 0x0 0x0 0x0 0x4000 0x0 0x0>;
>  			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		ftm_alarm1: timer@...0000 {
> +			compatible = "fsl,ls1028a-ftm-alarm";
> +			reg = <0x0 0x2810000 0x0 0x10000>;
> +			fsl,rcpm-wakeup = <&rcpm 0x0 0x0 0x0 0x0 0x4000 0x0 0x0>;
> +			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
>  		};
>  	};
>  
> -- 
> 2.25.1
>