1*c66ec88fSEmmanuel VadotTDM slot: 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotThis specifies audio DAI's TDM slot. 4*c66ec88fSEmmanuel Vadot 5*c66ec88fSEmmanuel VadotTDM slot properties: 6*c66ec88fSEmmanuel Vadotdai-tdm-slot-num : Number of slots in use. 7*c66ec88fSEmmanuel Vadotdai-tdm-slot-width : Width in bits for each slot. 8*c66ec88fSEmmanuel Vadotdai-tdm-slot-tx-mask : Transmit direction slot mask, optional 9*c66ec88fSEmmanuel Vadotdai-tdm-slot-rx-mask : Receive direction slot mask, optional 10*c66ec88fSEmmanuel Vadot 11*c66ec88fSEmmanuel VadotFor instance: 12*c66ec88fSEmmanuel Vadot dai-tdm-slot-num = <2>; 13*c66ec88fSEmmanuel Vadot dai-tdm-slot-width = <8>; 14*c66ec88fSEmmanuel Vadot dai-tdm-slot-tx-mask = <0 1>; 15*c66ec88fSEmmanuel Vadot dai-tdm-slot-rx-mask = <1 0>; 16*c66ec88fSEmmanuel Vadot 17*c66ec88fSEmmanuel VadotAnd for each specified driver, there could be one .of_xlate_tdm_slot_mask() 18*c66ec88fSEmmanuel Vadotto specify an explicit mapping of the channels and the slots. If it's absent 19*c66ec88fSEmmanuel Vadotthe default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the 20*c66ec88fSEmmanuel Vadottx and rx masks. 21*c66ec88fSEmmanuel Vadot 22*c66ec88fSEmmanuel VadotFor snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit 23*c66ec88fSEmmanuel Vadotfor an active slot as default, and the default active bits are at the LSB of 24*c66ec88fSEmmanuel Vadotthe masks. 25*c66ec88fSEmmanuel Vadot 26*c66ec88fSEmmanuel VadotThe explicit masks are given as array of integers, where the first 27*c66ec88fSEmmanuel Vadotnumber presents bit-0 (LSB), second presents bit-1, etc. Any non zero 28*c66ec88fSEmmanuel Vadotnumber is considered 1 and 0 is 0. snd_soc_of_xlate_tdm_slot_mask() 29*c66ec88fSEmmanuel Vadotdoes not do anything, if either mask is set non zero value. 30