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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