Add comments for DMA stream id and IRQ bit mapping in ACP_EXTERNAL_CNTL & ACP_EXTERNAL_CNTL1 registers for SDW0 and SDW1 manager instances. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx> --- sound/soc/amd/ps/acp63.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index e96e6dc9d90f..733a16e23d32 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -116,8 +116,28 @@ #define ACP63_SDW0_DMA_MAX_STREAMS 6 #define ACP63_SDW1_DMA_MAX_STREAMS 2 #define ACP_P1_AUDIO_TX_THRESHOLD 6 + +/* + * Below entries describes SDW0 instance DMA stream id and DMA irq bit mapping + * in ACP_EXTENAL_INTR_CNTL register. + * Stream id IRQ Bit + * 0 (SDW0_AUDIO0_TX) 28 + * 1 (SDW0_AUDIO1_TX) 26 + * 2 (SDW0_AUDIO2_TX) 24 + * 3 (SDW0_AUDIO0_RX) 27 + * 4 (SDW0_AUDIO1_RX) 25 + * 5 (SDW0_AUDIO2_RX) 23 + */ #define SDW0_DMA_TX_IRQ_MASK(i) (ACP_AUDIO0_TX_THRESHOLD - (2 * (i))) #define SDW0_DMA_RX_IRQ_MASK(i) (ACP_AUDIO0_RX_THRESHOLD - (2 * (i))) + +/* + * Below entries describes SDW1 instance DMA stream id and DMA irq bit mapping + * in ACP_EXTENAL_INTR_CNTL1 register. + * Stream id IRQ Bit + * 0 (SDW1_AUDIO1_TX) 6 + * 1 (SDW1_AUDIO1_RX) 5 + */ #define SDW1_DMA_IRQ_MASK(i) (ACP_P1_AUDIO_TX_THRESHOLD - (i)) #define ACP_DELAY_US 5 -- 2.34.1
