ASoC: brcm: DSL/PON SoC device tree bindings of audio driver

Commit Message

Kevin Li March 6, 2020, 10:27 p.m. UTC

Signed-off-by: Kevin Li <[e-mail]>
---
 .../bindings/sound/brcm,bcm63xx-audio.txt     | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 Documentation/devicetree/bindings/sound/brcm,bcm63xx-audio.txt

Patch

diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm63xx-audio.txt b/Documentation/devicetree/bindings/sound/brcm,bcm63xx-audio.txt
new file mode 100755
index 000000000000..88e404a8145f
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/brcm,bcm63xx-audio.txt
@@ -0,0 +1,29 @@ 
+Broadcom DSL/PON BCM63xx Audio I2S controller
+
+Required properties:
+- compatible:     Should be "brcm,bcm63xx-i2s".
+- #address-cells: 32bit valued, 1 cell.
+- #size-cells:    32bit valued, 0 cell.
+- reg:            Should contain audio registers location and length
+- interrupts:     Should contain the interrupt for the controller.
+- clocks:         Must contain an entry for each entry in clock-names.
+                  Please refer to clock-bindings.txt.
+- clock-names:    Should be one of each entry matching the clocks phandles list:
+                  - "i2sclk" (generated clock) Required.
+                  - "i2sosc" (fixed 200MHz clock) Required.
+
+(1) : The generated clock is required only when any of TX and RX
+      works on Master Mode.
+(2) : The fixed 200MHz clock is from internal chip and always on
+
+Example:
+
+		i2s: bcm63xx-i2s {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,bcm63xx-i2s";
+			reg = <0xFF802080 0xFF>;
+			interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&i2sclk>, <&osc>;
+			clock-names = "i2sclk","i2sosc"; 
+		};
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