linux-kernel - Re: [PATCH 2/8] arm64: dts: s32g274-rd2: Enable the STM timers

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Message-ID: <aIp+4mWS1k73Vf/A@lizhi-Precision-Tower-5810>
Date: Wed, 30 Jul 2025 16:21:54 -0400
From: Frank Li <Frank.li@....com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: mbrugger@...e.com, chester62515@...il.com,
	ghennadi.procopciuc@....nxp.com, shawnguo@...nel.org,
	s.hauer@...gutronix.de, s32@....com, kernel@...gutronix.de,
	festevam@...il.com, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ghennadi Procopciuc <ghennadi.procopciuc@....com>,
	Thomas Fossati <thomas.fossati@...aro.org>
Subject: Re: [PATCH 2/8] arm64: dts: s32g274-rd2: Enable the STM timers

On Wed, Jul 30, 2025 at 09:50:15PM +0200, Daniel Lezcano wrote:
> Enable the timers STM0 -> STM3 on the s32g274-rd2
>
> The platform has 4 CPUs and the Linux STM timer driver is per
> CPU. Enable 4 timers which will be used, other timers are useless for
> the Linux kernel and there is no benefit to enable them.

S32 have not ARM local timer? It is quite strange!

Frank

>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> Cc: Ghennadi Procopciuc <ghennadi.procopciuc@....com>
> Cc: Thomas Fossati <thomas.fossati@...aro.org>
> ---
>  arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
> index b5ba51696f43..505776d19151 100644
> --- a/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
> +++ b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
> @@ -40,6 +40,22 @@ &uart1 {
>  	status = "okay";
>  };
>
> +&stm0 {
> +	status = "okay";
> +};
> +
> +&stm1 {
> +	status = "okay";
> +};
> +
> +&stm2 {
> +	status = "okay";
> +};
> +
> +&stm3 {
> +	status = "okay";
> +};
> +
>  &usdhc0 {
>  	pinctrl-names = "default", "state_100mhz", "state_200mhz";
>  	pinctrl-0 = <&pinctrl_usdhc0>;
> --
> 2.43.0
>