linux-kernel - Re: [PATCH v3 5/6] arm64: dts: imx8qm: add node for VPU dsp

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Message-ID: <ZwlKWcTN7DBsvdD2@lizhi-Precision-Tower-5810>
Date: Fri, 11 Oct 2024 11:55:05 -0400
From: Frank Li <Frank.li@....com>
To: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Daniel Baluta <daniel.baluta@....com>,
	Shengjiu Wang <shengjiu.wang@....com>,
	Iuliana Prodan <iuliana.prodan@....com>,
	Tushar Khandelwal <Tushar.Khandelwal@....com>,
	Viresh Kumar <viresh.kumar@...aro.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 5/6] arm64: dts: imx8qm: add node for VPU dsp

On Fri, Oct 11, 2024 at 11:04:38AM -0400, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
>
> Add DT node for i.MX8QM's DSP, which is found in the VPU subsystem.
>
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> ---

with below nit.

Reviewed-by: Frank Li <Frank.Li@....com>

>  arch/arm64/boot/dts/freescale/imx8qm.dtsi | 26 +++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> index f8b577ebdbef..74857a94bcd3 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> @@ -581,6 +581,32 @@ mipi_pll_div2_clk: clock-controller-mipi-div2-pll {
>  		clock-output-names = "mipi_pll_div2_clk";
>  	};
>
> +	vpu_subsys_dsp: bus@...00000 {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges = <0x55000000 0x0 0x55000000 0x1000000>;
> +
> +		vpu_dsp: dsp@...e8000 {
> +			compatible = "fsl,imx8qm-hifi4";
> +			reg = <0x556e8000 0x88000>;
> +			clocks = <&clk_dummy>,
> +				 <&clk_dummy>,
> +				 <&clk_dummy>;
> +			clock-names = "ipg", "ocram", "core";
> +			power-domains = <&pd IMX_SC_R_MU_13B>,
> +					<&pd IMX_SC_R_DSP>,
> +					<&pd IMX_SC_R_DSP_RAM>,
> +					<&pd IMX_SC_R_MU_2A>;
> +			mbox-names = "tx", "rx", "rxdb";
> +			mboxes = <&lsio_mu13 0 0>,
> +				 <&lsio_mu13 1 0>,
> +				 <&lsio_mu13 3 0>;

Nit: keep consisent with clock-names and clocks,
mbox-names after mboxes

> +			firmware-name = "imx/dsp/hifi4.bin";
> +			status = "disabled";
> +		};
> +	};
> +
>  	/* sorted in register address */
>  	#include "imx8-ss-cm41.dtsi"
>  	#include "imx8-ss-audio.dtsi"
> --
> 2.34.1
>