On 9/29/22 08:25, Lu, Brent wrote: >>> >>> I think TDM slot number is possible but not TX/RX mask. What we have >>> in topology is union of tx/rx mask of all channels. We don't know the >>> mask of specific channel in DAI_CONFIG. >>> >>> DAI_CONFIG(SSP, 0, BOARD_HP_BE_ID, SSP0-Codec, >>> SSP_CONFIG(I2S, SSP_CLOCK(mclk, 19200000, codec_mclk_in), >>> SSP_CLOCK(bclk, 2400000, codec_slave), >>> SSP_CLOCK(fsync, 48000, codec_slave), >>> SSP_TDM(2, 25, 3, 3), >> >> the 3 3 is precisely the channel mask! >> > > Yes, but what we need in the hw_params() is the mask for individual channel, > like 0x1 for left and 0x2 for right. Ah yes, you're talking about the mask configuration on the codec side, sorry I was confused with your reference to DAI_CONFIG. That would be platform-level information, not DSP topology information indeed. Sounds good then, thanks for the explanations. Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
