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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ASoC: amd: ps: add comments for DMA register mapping
Add comments for DMA register mapping for both the SoundWire manager
instances.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230626105356.2580125-4-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by
Vijendar Mukunda
and committed by
Mark Brown
46b50e51
f15f6b29
+11
+11
sound/soc/amd/ps/ps-sdw-dma.c
+11
sound/soc/amd/ps/ps-sdw-dma.c
···
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ACP_AUDIO2_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO2_RX_LINEARPOSITIONCNTR_HIGH}
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};
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+
/*
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* SDW1 instance supports one TX stream and one RX stream.
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* For TX/RX streams DMA registers programming for SDW1 instance, it uses ACP_P1_AUDIO1 register
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* set as per hardware register documentation
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*/
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static struct sdw_dma_ring_buf_reg sdw1_dma_ring_buf_reg[ACP63_SDW1_DMA_MAX_STREAMS] = {
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{ACP_P1_AUDIO1_TX_DMA_SIZE, ACP_P1_AUDIO1_TX_FIFOADDR, ACP_P1_AUDIO1_TX_FIFOSIZE,
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ACP_P1_AUDIO1_TX_RINGBUFSIZE, ACP_P1_AUDIO1_TX_RINGBUFADDR,
···
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ACP_SW0_AUDIO2_RX_EN,
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};
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/*
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* SDW1 instance supports one TX stream and one RX stream.
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* For TX/RX streams DMA enable register programming for SDW1 instance,
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* it uses ACP_SW1_AUDIO1_TX_EN and ACP_SW1_AUDIO1_RX_EN registers
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* as per hardware register documentation.
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*/
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static u32 sdw1_dma_enable_reg[ACP63_SDW1_DMA_MAX_STREAMS] = {
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ACP_SW1_AUDIO1_TX_EN,
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ACP_SW1_AUDIO1_RX_EN,