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SDMA: Fix sound issues caused by SDMA driver #90330

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Merged
merged 2 commits into from
May 28, 2025
Merged

SDMA: Fix sound issues caused by SDMA driver #90330

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6a581d8
drivers: dma: sdma: Fix noise issue with pause/resume
dbaluta May 22, 2025
4fde6af
drivers: dma: sdma: Make access to DMA channel stats atomic
dbaluta May 26, 2025
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8 changes: 8 additions & 0 deletions drivers/dma/dma_nxp_sdma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -237,6 +237,8 @@ static void dma_nxp_sdma_setup_bd(const struct device *dev, uint32_t channel,

chan_data = &dev_data->chan[channel];

chan_data->capacity = 0;

/* initialize bd pool */
chan_data->bd_pool = &dev_data->bd_pool[channel][0];
chan_data->bd_count = config->block_count;
Expand Down Expand Up @@ -374,11 +376,14 @@ static int dma_nxp_sdma_get_status(const struct device *dev, uint32_t channel,
{
struct sdma_dev_data *dev_data = dev->data;
struct sdma_channel_data *chan_data;
unsigned int key;

chan_data = &dev_data->chan[channel];

key = irq_lock();
stat->free = chan_data->stat.free;
stat->pending_length = chan_data->stat.pending_length;
irq_unlock(key);

return 0;
}
Expand All @@ -388,18 +393,21 @@ static int dma_nxp_sdma_reload(const struct device *dev, uint32_t channel, uint3
{
struct sdma_dev_data *dev_data = dev->data;
struct sdma_channel_data *chan_data;
unsigned int key;

chan_data = &dev_data->chan[channel];

if (!size) {
return 0;
}

key = irq_lock();
if (chan_data->direction == MEMORY_TO_PERIPHERAL) {
dma_nxp_sdma_produce(chan_data, size);
} else {
dma_nxp_sdma_consume(chan_data, size);
}
irq_unlock(key);

return 0;
}
Expand Down
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