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authorMark Brown <broonie@kernel.org>2018-10-19 13:31:41 +0100
committerMark Brown <broonie@kernel.org>2018-10-19 13:31:41 +0100
commit7ece50c9f790270e82b77589d34e54547c895a66 (patch)
tree871ccdc59063eb9f9ec2b76a13da69fb54b1a6a6 /sound
parente3a360b8cdede74d25807fc405e5d8bfb025692f (diff)
parent747df19747bc9752cd40b9cce761e17a033aa5c2 (diff)
downloadlinux-7ece50c9f790270e82b77589d34e54547c895a66.tar.bz2
Merge remote-tracking branch 'asoc/for-4.19' into asoc-4.20
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/amd/acp-pcm-dma.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index c7e972b17c90..cdebab2f8ce5 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -1040,16 +1040,22 @@ static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
period_bytes = frames_to_bytes(runtime, runtime->period_size);
- dscr = acp_reg_read(rtd->acp_mmio, rtd->dma_curr_dscr);
- if (dscr == rtd->dma_dscr_idx_1)
- pos = period_bytes;
- else
- pos = 0;
bytescount = acp_get_byte_count(rtd);
- if (bytescount > rtd->bytescount)
+ if (bytescount >= rtd->bytescount)
bytescount -= rtd->bytescount;
- delay = do_div(bytescount, period_bytes);
- runtime->delay = bytes_to_frames(runtime, delay);
+ if (bytescount < period_bytes) {
+ pos = 0;
+ } else {
+ dscr = acp_reg_read(rtd->acp_mmio, rtd->dma_curr_dscr);
+ if (dscr == rtd->dma_dscr_idx_1)
+ pos = period_bytes;
+ else
+ pos = 0;
+ }
+ if (bytescount > 0) {
+ delay = do_div(bytescount, period_bytes);
+ runtime->delay = bytes_to_frames(runtime, delay);
+ }
} else {
buffersize = frames_to_bytes(runtime, runtime->buffer_size);
bytescount = acp_get_byte_count(rtd);