[deliverable/linux.git] / Documentation / devicetree / bindings / sound / tdm-slot.txt

TDM slot:

This specifies audio DAI's TDM slot.

TDM slot properties:
dai-tdm-slot-num : Number of slots in use.
dai-tdm-slot-width :  Width in bits for each slot.

For instance:
	dai-tdm-slot-num = <2>;
	dai-tdm-slot-width = <8>;

And for each spcified driver, there could be one .of_xlate_tdm_slot_mask()
to specify a explicit mapping of the channels and the slots. If it's absent
the default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the
tx and rx masks.

For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit
for an active slot as default, and the default active bits are at the LSB of
the masks.
Commit	Line	Data
72899ad8 XL	1	TDM slot:
	2
	3	This specifies audio DAI's TDM slot.
	4
	5	TDM slot properties:
	6	dai-tdm-slot-num : Number of slots in use.
	7	dai-tdm-slot-width : Width in bits for each slot.
	8
	9	For instance:
	10	dai-tdm-slot-num = <2>;
	11	dai-tdm-slot-width = <8>;
	12
	13	And for each spcified driver, there could be one .of_xlate_tdm_slot_mask()
	14	to specify a explicit mapping of the channels and the slots. If it's absent
	15	the default snd_soc_of_xlate_tdm_slot_mask() will be used to generating the
	16	tx and rx masks.
	17
	18	For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit
	19	for an active slot as default, and the default active bits are at the LSB of
	20	the masks.