sprd_mcdt_request_chan 866 sound/soc/sprd/sprd-mcdt.c struct sprd_mcdt_chan *sprd_mcdt_request_chan(u8 channel, sprd_mcdt_request_chan 68 sound/soc/sprd/sprd-mcdt.h struct sprd_mcdt_chan *sprd_mcdt_request_chan(u8 channel,