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ASoC: amd: ps: implement function to restore dma config for ACP7.0 platform

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Implement function to restore the dma configuration during system level
resume for ACP7.0 & ACP7.1 platforms. Add a conditional check to invoke
restore dma configuration function based on acp pci revision id.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20250207062819.1527184-16-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda
2025-02-07 11:58:09 +05:30
committed by Mark Brown
parent c878d5c1a5
commit 1c35755f46
2 changed files with 47 additions and 1 deletions
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2
sound/soc/amd/ps/acp63.h
View File

@@ -142,6 +142,8 @@
#define ACP70_SDW0_DMA_MAX_STREAMS 6
#define ACP70_SDW1_DMA_MAX_STREAMS ACP70_SDW0_DMA_MAX_STREAMS
#define ACP70_SDW_DMA_IRQ_MASK 0x1F800000
#define ACP70_P1_SDW_DMA_IRQ_MASK 0x1F8
#define ACP70_P1_AUDIO0_TX_THRESHOLD 0x8
#define ACP70_P1_AUDIO1_TX_THRESHOLD 0x6

46
sound/soc/amd/ps/ps-sdw-dma.c
View File

@@ -725,12 +725,56 @@ static int acp63_restore_sdw_dma_config(struct sdw_dma_dev_data *sdw_data)
return 0;
}
static int acp70_restore_sdw_dma_config(struct sdw_dma_dev_data *sdw_data)
{
struct acp_sdw_dma_stream *stream;
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
u32 period_bytes, buf_size, water_mark_size_reg;
u32 stream_count, irq_mask, irq_mask1;
int index, instance, ret;
irq_mask = ACP70_SDW_DMA_IRQ_MASK;
irq_mask1 = ACP70_P1_SDW_DMA_IRQ_MASK;
stream_count = ACP70_SDW0_DMA_MAX_STREAMS;
for (instance = 0; instance < AMD_SDW_MAX_MANAGERS; instance++) {
for (index = 0; index < stream_count; index++) {
if (instance == ACP_SDW0) {
substream = sdw_data->acp70_sdw0_dma_stream[index];
water_mark_size_reg = acp70_sdw0_dma_reg[index].water_mark_size_reg;
} else {
substream = sdw_data->acp70_sdw1_dma_stream[index];
water_mark_size_reg = acp70_sdw1_dma_reg[index].water_mark_size_reg;
}
if (substream && substream->runtime) {
runtime = substream->runtime;
stream = runtime->private_data;
period_bytes = frames_to_bytes(runtime, runtime->period_size);
buf_size = frames_to_bytes(runtime, runtime->buffer_size);
acp63_config_dma(stream, sdw_data->acp_base, index);
ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index,
buf_size, instance,
sdw_data->acp_rev);
if (ret)
return ret;
writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
}
}
}
acp63_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, irq_mask, irq_mask1, true);
return 0;
}
static int __maybe_unused acp63_sdw_pcm_resume(struct device *dev)
{
struct sdw_dma_dev_data *sdw_data;
sdw_data = dev_get_drvdata(dev);
return acp63_restore_sdw_dma_config(sdw_data);
if (sdw_data->acp_rev == ACP63_PCI_REV)
return acp63_restore_sdw_dma_config(sdw_data);
else
return acp70_restore_sdw_dma_config(sdw_data);
}
static const struct dev_pm_ops acp63_pm_ops = {