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-rw-r--r--sound/soc/amd/acp-pcm-dma.c27
1 files changed, 5 insertions, 22 deletions
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index ef7e98ad960c..9f521a55d610 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -193,8 +193,8 @@ static void set_acp_sysmem_dma_descriptors(void __iomem *acp_mmio,
dmadscr[i].xfer_val = 0;
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
dma_dscr_idx = PLAYBACK_START_DMA_DESCR_CH12 + i;
- dmadscr[i].dest = ACP_SHARED_RAM_BANK_1_ADDRESS +
- (size / 2) - (i * (size/2));
+ dmadscr[i].dest = ACP_SHARED_RAM_BANK_1_ADDRESS
+ + (i * (size/2));
dmadscr[i].src = ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS
+ (pte_offset * SZ_4K) + (i * (size/2));
switch (asic_type) {
@@ -655,9 +655,9 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
valid_irq = true;
if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_13) ==
PLAYBACK_START_DMA_DESCR_CH13)
- dscr_idx = PLAYBACK_START_DMA_DESCR_CH12;
- else
dscr_idx = PLAYBACK_END_DMA_DESCR_CH12;
+ else
+ dscr_idx = PLAYBACK_START_DMA_DESCR_CH12;
config_acp_dma_channel(acp_mmio, SYSRAM_TO_ACP_CH_NUM, dscr_idx,
1, 0);
acp_dma_start(acp_mmio, SYSRAM_TO_ACP_CH_NUM, false);
@@ -882,23 +882,6 @@ static int acp_dma_prepare(struct snd_pcm_substream *substream)
config_acp_dma_channel(rtd->acp_mmio, ACP_TO_I2S_DMA_CH_NUM,
PLAYBACK_START_DMA_DESCR_CH13,
NUM_DSCRS_PER_CHANNEL, 0);
- /* Fill ACP SRAM (2 periods) with zeros from System RAM
- * which is zero-ed in hw_params
- */
- acp_dma_start(rtd->acp_mmio, SYSRAM_TO_ACP_CH_NUM, false);
-
- /* ACP SRAM (2 periods of buffer size) is intially filled with
- * zeros. Before rendering starts, 2nd half of SRAM will be
- * filled with valid audio data DMA'ed from first half of system
- * RAM and 1st half of SRAM will be filled with Zeros. This is
- * the initial scenario when redering starts from SRAM. Later
- * on, 2nd half of system memory will be DMA'ed to 1st half of
- * SRAM, 1st half of system memory will be DMA'ed to 2nd half of
- * SRAM in ping-pong way till rendering stops.
- */
- config_acp_dma_channel(rtd->acp_mmio, SYSRAM_TO_ACP_CH_NUM,
- PLAYBACK_START_DMA_DESCR_CH12,
- 1, 0);
} else {
config_acp_dma_channel(rtd->acp_mmio, ACP_TO_SYSRAM_CH_NUM,
CAPTURE_START_DMA_DESCR_CH14,
@@ -913,7 +896,7 @@ static int acp_dma_prepare(struct snd_pcm_substream *substream)
static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
{
int ret;
- u32 loops = 1000;
+ u32 loops = 4000;
u64 bytescount = 0;
struct snd_pcm_runtime *runtime = substream->runtime;