Texas Instruments McASP controller Required properties: - compatible : "ti,dm646x-mcasp-audio" : for DM646x platforms "ti,da830-mcasp-audio" : for both DA830 & DA850 platforms "ti,am33xx-mcasp-audio" : for AM33xx platforms (AM33xx, AM43xx, TI81xx) "ti,dra7-mcasp-audio" : for DRA7xx platforms - reg : Should contain reg specifiers for the entries in the reg-names property. - reg-names : Should contain: * "mpu" for the main registers (required). For compatibility with existing software, it is recommended this is the first entry. * "dat" for separate data port register access (optional). - op-mode : I2S/DIT ops mode. 0 for I2S mode. 1 for DIT mode used for S/PDIF, IEC60958-1, and AES-3 formats. - tdm-slots : Slots for TDM operation. Indicates number of channels transmitted or received over one serializer. - serial-dir : A list of serializer configuration. Each entry is a number indication for serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX) - dmas: two element list of DMA controller phandles and DMA request line ordered pairs. - dma-names: identifier string for each DMA request line in the dmas property. These strings correspond 1:1 with the ordered pairs in dmas. The dma identifiers must be "rx" and "tx". Optional properties: - ti,hwmods : Must be "mcasp", n is controller instance starting 0 - tx-num-evt : FIFO levels. - rx-num-evt : FIFO levels. - sram-size-playback : size of sram to be allocated during playback - sram-size-capture : size of sram to be allocated during capture - interrupts : Interrupt numbers for McASP - interrupt-names : Known interrupt names are "tx" and "rx" - pinctrl-0: Should specify pin control group used for this controller. - pinctrl-names: Should contain only one value - "default", for more details please refer to pinctrl-bindings.txt - fck_parent : Should contain a valid clock name which will be used as parent for the McASP fck Example: mcasp0: mcasp0@1d00000 { compatible = "ti,da830-mcasp-audio"; reg = <0x100000 0x3000>; reg-names "mpu"; interrupts = <82>, <83>; interrupt-names = "tx", "rx"; op-mode = <0>; /* MCASP_IIS_MODE */ tdm-slots = <2>; serial-dir = < 0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */ 0 0 0 0 0 0 0 1 2 0 0 0 >; tx-num-evt = <1>; rx-num-evt = <1>; };