[V2,05/10] ASoC: img: Add binding document for parallel output controller
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Message ID 1444653637-14711-6-git-send-email-Damien.Horsley@imgtec.com
State New
Headers show

Commit Message

Damien Horsley Oct. 12, 2015, 12:40 p.m. UTC
From: "Damien.Horsley" <Damien.Horsley@imgtec.com>

Add binding document for Imagination Technologies parallel
output controller

Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com>
---
 .../devicetree/bindings/sound/img,parallel-out.txt | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/img,parallel-out.txt

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diff --git a/Documentation/devicetree/bindings/sound/img,parallel-out.txt b/Documentation/devicetree/bindings/sound/img,parallel-out.txt
new file mode 100644
index 0000000..a3015d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/img,parallel-out.txt
@@ -0,0 +1,44 @@ 
+Imagination Technologies Parallel Output Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,parallel-out".
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device.
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"tx"
+
+  - clocks : Contains an entry for each entry in clock-names.
+
+  - clock-names : Includes the following entries:
+	"sys"	The system clock
+	"ref"	The reference clock
+
+  - resets: Contains a phandle to the parallel out reset signal
+
+  - reset-names: Contains the reset signal name "rst"
+
+Optional Properties:
+
+  - interrupts : Contains the parallel out interrupt, if present
+
+Example:
+
+parallel_out: parallel-out@18100C00 {
+	compatible = "img,parallel-out";
+	reg = <0x18100C00 0x100>;
+	interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 16 0xffffffff 0>;
+	dma-names = "tx";
+	clocks = <&cr_periph SYS_CLK_PAUD_OUT>,
+		 <&clk_core CLK_AUDIO_DAC>;
+	clock-names = "sys", "ref";
+	resets = <&pistachio_reset PISTACHIO_RESET_PRL_OUT>;
+	reset-names = "rst";
+	#sound-dai-cells = <0>;
+};