From: Zhu Yingjiang yingjiang.zhu@linux.intel.com
Before clearing stream statuses, ensure RUN bit update has taken effect by reading the value back.
Signed-off-by: Zhu Yingjiang yingjiang.zhu@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda-stream.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index 13d114993f96..ad8d41f22e92 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -295,7 +295,9 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, struct hdac_stream *hstream = &stream->hstream; int sd_offset = SOF_STREAM_SD_OFFSET(hstream); int ret, timeout = HDA_DSP_STREAM_RESET_TIMEOUT; + u32 dma_start = SOF_HDA_SD_CTL_DMA_START; u32 val, mask; + u32 run;
if (!stream) { dev_err(sdev->dev, "error: no stream available\n"); @@ -316,6 +318,16 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset, SOF_HDA_CL_DMA_SD_INT_MASK | SOF_HDA_SD_CTL_DMA_START, 0); + + ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_HDA_BAR, + sd_offset, run, + !(run & dma_start), + HDA_DSP_REG_POLL_INTERVAL_US, + HDA_DSP_STREAM_RUN_TIMEOUT); + + if (ret) + return ret; + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS, SOF_HDA_CL_DMA_SD_INT_MASK, @@ -368,6 +380,16 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset, SOF_HDA_CL_DMA_SD_INT_MASK | SOF_HDA_SD_CTL_DMA_START, 0); + + ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_HDA_BAR, + sd_offset, run, + !(run & dma_start), + HDA_DSP_REG_POLL_INTERVAL_US, + HDA_DSP_STREAM_RUN_TIMEOUT); + + if (ret) + return ret; + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS, SOF_HDA_CL_DMA_SD_INT_MASK,