linux-kernel - Re: [PATCH 1/8] arm64: dts: s32g2: Add the STM description

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Message-ID: <aIp+XTCSpNGee2qx@lizhi-Precision-Tower-5810>
Date: Wed, 30 Jul 2025 16:19:41 -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 1/8] arm64: dts: s32g2: Add the STM description

On Wed, Jul 30, 2025 at 09:50:14PM +0200, Daniel Lezcano wrote:

I think replace all 'description' with 'node' is easy to read.

> The s32g2 has a STM module containing 8 timers. Each timer has a
> dedicated interrupt and share the same clock.
>
> Add the timers STM0->STM6 description for the s32g2 SoC. The STM7 is
> not added because it is slightly different and needs an extra property
> which will be added later when supported by the driver.
>
> 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/s32g2.dtsi | 63 ++++++++++++++++++++++++
>  1 file changed, 63 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
> index ea1456d361a3..3e775d030e37 100644
> --- a/arch/arm64/boot/dts/freescale/s32g2.dtsi
> +++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
> @@ -503,5 +503,68 @@ gic: interrupt-controller@...00000 {
>  			interrupt-controller;
>  			#interrupt-cells = <3>;
>  		};
> +
> +		stm0: timer@...1c000 {

keep order according to address.

4011c000 should less than 50800000.

> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x4011c000 0x3000>;
> +			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			status = "disabled";

why not default enable.

Frank

> +		};
> +
> +		stm1: timer@...20000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x40120000 0x3000>;
> +			interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			status = "disabled";
> +		};
> +
> +		stm2: timer@...24000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x40124000 0x3000>;
> +			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			status = "disabled";
> +		};
> +
> +		stm3: timer@...28000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x40128000 0x3000>;
> +			interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			status = "disabled";
> +		};
> +
> +		stm4: timer@...1c000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x4021c000 0x3000>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		stm5: timer@...20000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x40220000 0x3000>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		stm6: timer@...24000 {
> +			compatible = "nxp,s32g2-stm";
> +			reg = <0x40224000 0x3000>;
> +			clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
> +			clock-names = "counter", "module", "register";
> +			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
>  	};
>  };
> --
> 2.43.0
>