linux-kernel - Re: [PATCH v7 10/11] arm64: dts: ti: k3-am62a7-sk: Reserve main

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Message-ID: <72e88ddd-dcf6-42ad-92c7-15869f83dd8c@ti.com>
Date: Mon, 28 Apr 2025 11:29:22 -0500
From: Andrew Davis <afd@...com>
To: Judith Mendez <jm@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>
CC: Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Hari Nagalla <hnagalla@...com>,
        Beleswar
 Prasad <b-padhi@...com>,
        Markus Schneider-Pargmann <msp@...libre.com>,
        Devarsh Thakkar <devarsht@...com>
Subject: Re: [PATCH v7 10/11] arm64: dts: ti: k3-am62a7-sk: Reserve main_rti4
 for C7x DSP

On 4/15/25 10:31 AM, Judith Mendez wrote:
> From: Hari Nagalla <hnagalla@...com>
> 
> The main rti4 watchdog timer is used by the C7x DSP, so reserve the
> timer in the linux device tree.
> 
> Signed-off-by: Hari Nagalla <hnagalla@...com>
> Signed-off-by: Judith Mendez <jm@...com>
> ---

Reviewed-by: Andrew Davis <afd@...com>

>   arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 8d7645bb90337..032f1f18d184e 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -830,3 +830,8 @@ &c7x_0 {
>   			<&c7x_0_memory_region>;
>   	status = "okay";
>   };
> +
> +/* main_rti4 is used by C7x DSP */
> +&main_rti4 {
> +	status = "reserved";
> +};