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