1Texas Instruments McASP controller
2
3Required properties:
4- compatible :
5	"ti,dm646x-mcasp-audio"	: for DM646x platforms
6	"ti,da830-mcasp-audio"	: for both DA830 & DA850 platforms
7	"ti,am33xx-mcasp-audio"	: for AM33xx platforms (AM33xx, AM43xx, TI81xx)
8	"ti,dra7-mcasp-audio"	: for DRA7xx platforms
9
10- reg : Should contain reg specifiers for the entries in the reg-names property.
11- reg-names : Should contain:
12         * "mpu" for the main registers (required). For compatibility with
13           existing software, it is recommended this is the first entry.
14         * "dat" for separate data port register access (optional).
15- op-mode : I2S/DIT ops mode. 0 for I2S mode. 1 for DIT mode used for S/PDIF,
16  	    IEC60958-1, and AES-3 formats.
17- tdm-slots : Slots for TDM operation. Indicates number of channels transmitted
18  	      or received over one serializer.
19- serial-dir : A list of serializer configuration. Each entry is a number
20               indication for serializer pin direction.
21               (0 - INACTIVE, 1 - TX, 2 - RX)
22- dmas: two element list of DMA controller phandles and DMA request line
23        ordered pairs.
24- dma-names: identifier string for each DMA request line in the dmas property.
25	     These strings correspond 1:1 with the ordered pairs in dmas. The dma
26	     identifiers must be "rx" and "tx".
27
28Optional properties:
29
30- ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0
31- tx-num-evt : FIFO levels.
32- rx-num-evt : FIFO levels.
33- sram-size-playback : size of sram to be allocated during playback
34- sram-size-capture  : size of sram to be allocated during capture
35- interrupts : Interrupt numbers for McASP
36- interrupt-names : Known interrupt names are "tx" and "rx"
37- pinctrl-0: Should specify pin control group used for this controller.
38- pinctrl-names: Should contain only one value - "default", for more details
39  		 please refer to pinctrl-bindings.txt
40- fck_parent : Should contain a valid clock name which will be used as parent
41	       for the McASP fck
42
43Example:
44
45mcasp0: mcasp0@1d00000 {
46	compatible = "ti,da830-mcasp-audio";
47	reg = <0x100000 0x3000>;
48	reg-names "mpu";
49	interrupts = <82>, <83>;
50	interrupt-names = "tx", "rx";
51	op-mode = <0>;		/* MCASP_IIS_MODE */
52	tdm-slots = <2>;
53	serial-dir = <
54			0 0 0 0	/* 0: INACTIVE, 1: TX, 2: RX */
55			0 0 0 0
56			0 0 0 1
57			2 0 0 0 >;
58	tx-num-evt = <1>;
59	rx-num-evt = <1>;
60};
61