Re: [PATCH 3/4] MIPS: Loongson64: Add watchdog node for LS7A PCH

[Conor Dooley <conor@kernel.org>]

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On Tue, Nov 10, 2026 at 03:02:32PM +0800, Rong Zhang wrote:
> The Loongson-7A has a watchdog. With proper support added to the
> loongson1_wdt driver, wire it up by adding a watchdog node to
> ls7a-pch.dtsi.
> 
> Tested on Loongson-LS3A4000-7A1000-NUC-SE and Lenovo KaiTian M530Z.
> 
> Signed-off-by: Rong Zhang <rongrong@oss.cipunited.com>
> ---
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> index f304f99946f1..770c96e9b908 100644
> --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
> @@ -67,6 +67,12 @@ ls7a_uart3: serial@10080300 {
>  			no-loopback-test;
>  		};
>  
> +		watchdog: watchdog@100d0030 {
> +			compatible = "loongson,ls7a-wdt";
> +			reg = <0 0x100d0030 0 0xc>;

The style here is weird, usually we like to have the whole property in
hex BTW.

> +			clock-frequency = <50000000>;
> +		};
> +
>  		rtc0: rtc@100d0100 {
>  			compatible = "loongson,ls7a-rtc";
>  			reg = <0 0x100d0100 0 0x78>;
> 
> -- 
> 2.55.0

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