linux-kernel - Re: [PATCH 1/2] ASoC: pxa: add binding for pxa2xx-ac97 audio complex

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Date:   Tue, 12 Jun 2018 16:13:59 -0600
From:   Rob Herring <robh@...nel.org>
To:     Robert Jarzmik <robert.jarzmik@...e.fr>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] ASoC: pxa: add binding for pxa2xx-ac97 audio complex

On Mon, Jun 11, 2018 at 10:22:10PM +0200, Robert Jarzmik wrote:
> This adds a binding for the Marvell PXA audio complex, available in
> pxa2xx and pxa3xx variants.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
> ---
>  .../bindings/sound/marvell,pxa2xx-ac97.txt         | 25 ++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt
> 
> diff --git a/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt b/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt
> new file mode 100644
> index 000000000000..b3f2882d9c7d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/marvell,pxa2xx-ac97.txt
> @@ -0,0 +1,25 @@
> +Marvell PXA2xx audio complex
> +
> +This descriptions matches the AC97 controller found in pxa2xx and pxa3xx series.
> +
> +Required properties:
> +  - compatible: "marvell,pxa2xx-ac97"

Don't use wildcards in compatible strings. Though this is so old...

> +  - reg: device MMIO address space
> +  - interrupts: single interrupt generated by AC97 IP
> +  - clocks: input clock of the AC97 IP, refer to clock-bindings.txt
> +
> +Optional properties:
> +  - pinctrl-names, pinctrl-0: refer to pinctrl-bindings.txt
> +  - reset-gpio: gpio used for AC97 reset, refer to gpio.txt

reset-gpios

> +
> +Example:
> +	ac97: sound@...00000 {
> +	      	compatible = "marvell,pxa2xx-ac97";
> +		reg = < 0x40500000 0x1000 >;
> +		interrupts = <14>;
> +		reset-gpio = <&gpio 113 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <1>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = < &pmux_ac97_default >;
> +		status = "okay";

Don't show status in examples.

> +	};
> -- 
> 2.11.0
> 
> --
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