linux-kernel - Re: [PATCH v3 2/6] arm64: dts: imx8-ss-audio: configure dsp node for rproc usage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZwlJKT6000Q3jSdE@lizhi-Precision-Tower-5810>
Date: Fri, 11 Oct 2024 11:50:01 -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 2/6] arm64: dts: imx8-ss-audio: configure dsp node for
 rproc usage

On Fri, Oct 11, 2024 at 11:04:35AM -0400, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
>
> The 'dsp' node is currently configured for running an
> audio firmware. Since the firmware requires that some
> audio-related IPs be disabled in Linux, this will clash
> with the configurations from the imx8 board DTs
> (i.e: imx8qm-mek, imx8qxp-mek, etc...), thus making the
> dsp unusable (since the firmware won't function properly).
>
> To avoid this issue, configure the 'dsp' node for rproc.
> This way, users will be able to use the dsp alongside the
> board-level audio configuration as long as the firmware
> doesn't need the audio IPs.

Nit:
 wrap at 75 char

Frank

>
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> ---
>  .../boot/dts/freescale/imx8-ss-audio.dtsi     | 19 ++++++++-----------
>  1 file changed, 8 insertions(+), 11 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
> index ff5df0fed9e9..a60ebb718789 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
> @@ -431,22 +431,19 @@ dsp_ram_lpcg: clock-controller@...90000 {
>  	};
>
>  	dsp: dsp@...e8000 {
> -		compatible = "fsl,imx8qxp-dsp";
> +		compatible = "fsl,imx8qxp-hifi4";
>  		reg = <0x596e8000 0x88000>;
>  		clocks = <&dsp_lpcg IMX_LPCG_CLK_5>,
>  			 <&dsp_ram_lpcg IMX_LPCG_CLK_4>,
>  			 <&dsp_lpcg IMX_LPCG_CLK_7>;
>  		clock-names = "ipg", "ocram", "core";
> -		power-domains = <&pd IMX_SC_R_MU_13A>,
> -			<&pd IMX_SC_R_MU_13B>,
> -			<&pd IMX_SC_R_DSP>,
> -			<&pd IMX_SC_R_DSP_RAM>;
> -		mbox-names = "txdb0", "txdb1",
> -			"rxdb0", "rxdb1";
> -		mboxes = <&lsio_mu13 2 0>,
> -			<&lsio_mu13 2 1>,
> -			<&lsio_mu13 3 0>,
> -			<&lsio_mu13 3 1>;
> +		power-domains = <&pd IMX_SC_R_MU_13B>,
> +				<&pd IMX_SC_R_MU_2A>;
> +		mbox-names = "tx", "rx", "rxdb";
> +		mboxes = <&lsio_mu13 0 0>,
> +			 <&lsio_mu13 1 0>,
> +			 <&lsio_mu13 3 0>;
> +		firmware-name = "imx/dsp/hifi4.bin";
>  		status = "disabled";
>  	};
>
> --
> 2.34.1
>