| * 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" and "gclk". |
| - clocks |
| Please refer to clock-bindings.txt. |
| - assigned-clocks |
| Should be <&classd_gclk>. |
| |
| 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>; |
| clock-names = "pclk", "gclk"; |
| assigned-clocks = <&classd_gclk>; |
| |
| pinctrl-names = "default"; |
| pinctrl-0 = <&pinctrl_classd_default>; |
| atmel,model = "classd @ SAMA5D2-Xplained"; |
| atmel,pwm-type = "diff"; |
| atmel,non-overlap-time = <10>; |
| }; |