linux-kernel - Re: [PATCH] arm64: dts: imx93: add wdog3 node

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Date:   Mon, 08 May 2023 08:34:31 +0200
From:   Alexander Stein <alexander.stein@...tq-group.com>
To:     shawnguo@...nel.org, s.hauer@...gutronix.de,
        linux-arm-kernel@...ts.infradead.org
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Peng Fan <peng.fan@....com>,
        "Peng Fan (OSS)" <peng.fan@....nxp.com>
Subject: Re: [PATCH] arm64: dts: imx93: add wdog3 node

Hello,

thanks for the patch.

Am Freitag, 5. Mai 2023, 11:31:30 CEST schrieb Peng Fan (OSS):
> From: Peng Fan <peng.fan@....com>
> 
> Add wdog3 node, then watchdog could be used.
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx93.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi
> b/arch/arm64/boot/dts/freescale/imx93.dtsi index e8d49660ac85..73ecd953ec8d
> 100644
> --- a/arch/arm64/boot/dts/freescale/imx93.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
> @@ -344,6 +344,14 @@ mu2: mailbox@...40000 {
>  				status = "disabled";
>  			};
> 
> +			wdog3: wdog@...90000 {

I think this should be called 'watchdog@...90000'

> +				compatible = "fsl,imx93-wdt";
> +				reg = <0x42490000 0x10000>;
> +				interrupts = <GIC_SPI 79 
IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&clk IMX93_CLK_WDOG3_GATE>;
> +				timeout-sec = <40>;

Should it be disabled it by default?

> +			};
> +
>  			tpm3: pwm@...e0000 {
>  				compatible = "fsl,imx7ulp-pwm";
>  				reg = <0x424e0000 0x1000>;

Is there a reason you just add watchdog3? There are 5 in total.

Best regards,
Alexander
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