Adds DT bindings documentation for the hi6210-i2s driver.
Signed-off-by: John Stultz <[email protected]>
---
.../bindings/sound/hisilicon,hi6210-i2s.txt | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644
Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt
diff --git a/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt
b/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt
new file mode 100644
index 0000000..95157ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt
@@ -0,0 +1,36 @@
+* Hisilicon 6210 i2s controller
+
+Required properties:
+
+- compatible: should be one of the following:
+ - "hisilicon,hi6210-i2s"
+- reg: physical base address of the controller and length of memory mapped
+ region. Should contain the i2s unit, syscon and pmctrl registers, in that
+ order.
+- interrupts: should contain the i2s interrupt.
+ clocks: a list of phandle + clock-specifier pairs, one for each entry
+ in clock-names.
+- clock-names: should contain following:
+ - "dacodec"
+ - "i2s-base"
+- dmas: DMA specifiers for tx dma. See the DMA client binding,
+ Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: should be "tx" and "rx"
+
+
+Example for the hi6210 i2s controller:
+
+i2s0: hi6210_i2s {
+ compatible = "hisilicon,hi6210-i2s";
+ reg = <0x0 0xf7118000 0x0 0x8000>, /* i2s unit */
+ <0x0 0xf7030000 0x0 0x400>, /* syscon */
+ <0x0 0xf7032000 0x0 0x400>; /* pmctrl */
+ interrupts = <0 123 0x4>; /* 155 "DigACodec_intr"-32 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&bt_pmx_func &bt_cfg_func>;
+ clocks = <&sys_ctrl HI6220_DACODEC_PCLK>,
+ <&sys_ctrl HI6220_BBPPLL0_DIV>;
+ clock-names = "dacodec", "i2s-base";
+ dmas = <&dma0 15 &dma0 14>;
+ dma-names = "rx", "tx";
+};
--
1.9.1
