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SubjectRe: [PATCH 04/11] ASoC: amd: removed separate byte count variables for playback and capture
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On Monday 30 April 2018 03:11 AM, Daniel Kurtz wrote:
> Hi Vijendar,
>
> On Thu, Apr 26, 2018 at 5:15 AM Vijendar Mukunda <Vijendar.Mukunda@amd.com>
> wrote:
>
>> Removed separate byte count variables for playback and capture.
>
>> Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
>
> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
>
>> ---
>> sound/soc/amd/acp-pcm-dma.c | 19 +++++--------------
>> sound/soc/amd/acp.h | 3 +--
>> 2 files changed, 6 insertions(+), 16 deletions(-)
>
>> diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
>> index 019f696..5f34be1 100644
>> --- a/sound/soc/amd/acp-pcm-dma.c
>> +++ b/sound/soc/amd/acp-pcm-dma.c
>> @@ -866,13 +866,8 @@ static snd_pcm_uframes_t acp_dma_pointer(struct
> snd_pcm_substream *substream)
>> buffersize = frames_to_bytes(runtime, runtime->buffer_size);
>> bytescount = acp_get_byte_count(rtd);
>
>> - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
>> - if (bytescount > rtd->i2ssp_renderbytescount)
>> - bytescount = bytescount -
> rtd->i2ssp_renderbytescount;
>> - } else {
>> - if (bytescount > rtd->i2ssp_capturebytescount)
>> - bytescount = bytescount -
> rtd->i2ssp_capturebytescount;
>> - }
>> + if (bytescount > rtd->bytescount)
>> + bytescount = bytescount - rtd->bytescount;
>
> nit, this could be:
> bytescount -= rtd->bytescount;

we will fix it and will share fresh patch.
>
>> pos = do_div(bytescount, buffersize);
>> return bytes_to_frames(runtime, pos);
>> }
>> @@ -921,9 +916,9 @@ static int acp_dma_trigger(struct snd_pcm_substream
> *substream, int cmd)
>> case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
>> case SNDRV_PCM_TRIGGER_RESUME:
>> bytescount = acp_get_byte_count(rtd);
>> + if (rtd->bytescount == 0)
>> + rtd->bytescount = bytescount;
>> if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
>> - if (rtd->i2ssp_renderbytescount == 0)
>> - rtd->i2ssp_renderbytescount = bytescount;
>> acp_dma_start(rtd->acp_mmio, rtd->ch1, false);
>> while (acp_reg_read(rtd->acp_mmio,
> mmACP_DMA_CH_STS) &
>> BIT(rtd->ch1)) {
>> @@ -934,9 +929,6 @@ static int acp_dma_trigger(struct snd_pcm_substream
> *substream, int cmd)
>> }
>> cpu_relax();
>> }
>> - } else {
>> - if (rtd->i2ssp_capturebytescount == 0)
>> - rtd->i2ssp_capturebytescount = bytescount;
>> }
>> acp_dma_start(rtd->acp_mmio, rtd->ch2, true);
>> ret = 0;
>> @@ -947,12 +939,11 @@ static int acp_dma_trigger(struct snd_pcm_substream
> *substream, int cmd)
>> if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
>> acp_dma_stop(rtd->acp_mmio, rtd->ch1);
>> ret = acp_dma_stop(rtd->acp_mmio, rtd->ch2);
>> - rtd->i2ssp_renderbytescount = 0;
>> } else {
>> acp_dma_stop(rtd->acp_mmio, rtd->ch2);
>> ret = acp_dma_stop(rtd->acp_mmio, rtd->ch1);
>> - rtd->i2ssp_capturebytescount = 0;
>> }
>> + rtd->bytescount = 0;
>> break;
>> default:
>> ret = -EINVAL;
>> diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
>> index 3b076c6..82470bc 100644
>> --- a/sound/soc/amd/acp.h
>> +++ b/sound/soc/amd/acp.h
>> @@ -93,8 +93,7 @@ struct audio_substream_data {
>> u32 byte_cnt_high_reg_offset;
>> u32 byte_cnt_low_reg_offset;
>> uint64_t size;
>> - u64 i2ssp_renderbytescount;
>> - u64 i2ssp_capturebytescount;
>> + u64 bytescount;
>> void __iomem *acp_mmio;
>> };
>
>> --
>> 2.7.4

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