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SubjectRe: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio amplifier driver
On Tue, Sep 01, 2015 at 01:41:41PM +0800, Songjun Wu wrote:

> +classd: classd@fc048000 {
> + compatible = "atmel,sama5d2-classd";
> + reg = <0xfc048000 0x100>;
> + interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
> + dmas = <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
> + | AT91_XDMAC_DT_PERID(47))>;
> + dma-names = "tx";
> + clocks = <&classd_clk>, <&classd_gclk>, <&audio_pll_pmc>;
> + clock-names = "pclk", "gclk", "aclk";
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_classd_default>;
> + atmel,pwm-type = "diff";
> + atmel,non-overlap-time = <10>;
> +};

> +Example:
> +sound {
> + compatible = "atmel,asoc-classd";
> +
> + atmel,model = "classd @ SAMA5D2-Xplained";
> + atmel,audio-platform = <&classd>;
> + atmel,audio-cpu-dai-name = "fc048000.classd";
> + atmel,audio-codec = <&classd>;
> +};

Why is this a separate DT node? It seems that this IP is entirely self
contained so I'm not clear why we need a separate node for the card, the
card is usually a separate node because it ties together multiple
different devices in the system but that's not the case here.
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