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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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