DT binding documentation for this new ASoC driver.
Signed-off-by: Songjun Wu <songjun.wu@xxxxxxxxx>
---
Changes in v2:
- Delete the device node "Sound" in dts.
.../devicetree/bindings/sound/atmel-classd.txt | 52 ++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/atmel-classd.txt
diff --git a/Documentation/devicetree/bindings/sound/atmel-classd.txt b/Documentation/devicetree/bindings/sound/atmel-classd.txt
new file mode 100644
index 0000000..0018451
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel-classd.txt
@@ -0,0 +1,52 @@
+* 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.
+
+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";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_classd_default>;
+ atmel,model = "classd @ SAMA5D2-Xplained";
+ atmel,pwm-type = "diff";
+ atmel,non-overlap-time = <10>;
+};
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
