linux-kernel - Re: [PATCH v4 3/3] arm64: dts: imx: add imx95 dts for sof

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Message-ID: <Z7zNymSs5qeHp9wL@lizhi-Precision-Tower-5810>
Date: Mon, 24 Feb 2025 14:51:38 -0500
From: Frank Li <Frank.li@....com>
To: Mihalcea Laurentiu <laurentiumihalcea111@...il.com>
Cc: Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 3/3] arm64: dts: imx: add imx95 dts for sof

On Mon, Feb 24, 2025 at 09:17:03PM +0200, Mihalcea Laurentiu wrote:
>
> On 12.02.2025 01:23, Frank Li wrote:
> > On Tue, Feb 11, 2025 at 05:58:08PM -0500, Laurentiu Mihalcea wrote:
> >> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> >>
> >> Add imx95 DTS for SOF usage.
> >>
> >> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> >> ---
> >>  arch/arm64/boot/dts/freescale/Makefile        |  1 +
> >>  .../dts/freescale/imx95-19x19-evk-sof.dts     | 85 +++++++++++++++++++
> >>  2 files changed, 86 insertions(+)
> >>  create mode 100644 arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts
> >>
> >> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> >> index 839432153cc7..27f64e333e4b 100644
> >> --- a/arch/arm64/boot/dts/freescale/Makefile
> >> +++ b/arch/arm64/boot/dts/freescale/Makefile
> >> @@ -282,6 +282,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxca.dtb
> >>  dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
> >>  dtb-$(CONFIG_ARCH_MXC) += imx93-var-som-symphony.dtb
> >>  dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk.dtb
> >> +dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-sof.dtb
> > look like should use dt overlay ?
>
>
> can you pls explain why you'd see this as an overlay?

It is addtional option, which base on imx95-19x19-evk.dtb. Default wm8962
is used for built-in dai, this provide option to move it dsp.

Ideally this option should work for all boards, which use wm8962.

We try to move MxN problem to M + N. otherwise, there are huge numbers of
dtb files.

Frank

>
> (snip)
>
> >> +
> >> +	sof-sound-wm8962 {
> >> +		compatible = "audio-graph-card2";
> >> +		links = <&cpu>;
> >> +		label = "wm8962-audio";
> >> +		hp-det-gpios = <&gpio2 11 GPIO_ACTIVE_HIGH>;
> >> +		pinctrl-names = "default";
> >> +		pinctrl-0 = <&pinctrl_hp>;
> >> +		widgets =
> >> +			"Headphone", "Headphones",
> >> +			"Microphone", "Headset Mic";
> > Generally, align to  =
> > 	widgets = "Headphone", "Headphones",
> > 		  "Microphone", "Headset Mic";
>
>
> sure
>
>
> >> +		routing =
> >> +			"Headphones", "HPOUTL",
> >> +			"Headphones", "HPOUTR",
> >> +			"Headset Mic", "MICBIAS",
> >> +			"IN3R", "Headset Mic",
> >> +			"IN1R", "Headset Mic";
> >> +	};
> >> +
> >> +	sound-wm8962 {
> >> +		status = "disabled";
> >> +	};
> >> +
> >> +};
> >> +
> >> +&edma2 {
> >> +	dma-channel-mask = <0xc0000000>, <0x0>;
> >> +};
> > Not sure why need mask edma2's some channel, can you add comments for it
> >
> > Frank
>
>
> sure, can add comment in commit msg
>