56 lines
1.5 KiB
Plaintext
56 lines
1.5 KiB
Plaintext
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* Atmel ClassD driver under ALSA SoC architecture
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Required properties:
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- compatible
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Should be "atmel,sama5d2-classd".
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- reg
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Should contain ClassD registers location and length.
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- interrupts
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Should contain the IRQ line for the ClassD.
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- dmas
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One DMA specifiers as described in atmel-dma.txt and dma.txt files.
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- dma-names
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Must be "tx".
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- clock-names
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Tuple listing input clock names.
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Required elements: "pclk" and "gclk".
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- clocks
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Please refer to clock-bindings.txt.
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- assigned-clocks
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Should be <&classd_gclk>.
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Optional properties:
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- pinctrl-names, pinctrl-0
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Please refer to pinctrl-bindings.txt.
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- atmel,model
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The user-visible name of this sound complex.
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The default value is "CLASSD".
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- atmel,pwm-type
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PWM modulation type, "single" or "diff".
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The default value is "single".
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- atmel,non-overlap-time
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Set non-overlapping time, the unit is nanosecond(ns).
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There are four values,
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<5>, <10>, <15>, <20>, the default value is <10>.
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Non-overlapping will be disabled if not specified.
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Example:
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classd: classd@fc048000 {
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compatible = "atmel,sama5d2-classd";
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reg = <0xfc048000 0x100>;
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interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
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dmas = <&dma0
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(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
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| AT91_XDMAC_DT_PERID(47))>;
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dma-names = "tx";
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clocks = <&classd_clk>, <&classd_gclk>;
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clock-names = "pclk", "gclk";
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assigned-clocks = <&classd_gclk>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_classd_default>;
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atmel,model = "classd @ SAMA5D2-Xplained";
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atmel,pwm-type = "diff";
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atmel,non-overlap-time = <10>;
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};
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