ALSA: hda-intel: support for period wakeup disabling

Allow disabling period wakeup interrupts for HDA PCM streams.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 21aa9b0..a78ea34 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1235,7 +1235,8 @@ static int azx_setup_periods(struct azx *chip,
                        pos_adj = 0;
                } else {
                        ofs = setup_bdle(substream, azx_dev,
-                                        &bdl, ofs, pos_adj, 1);
+                                        &bdl, ofs, pos_adj,
+                                        !substream->runtime->no_period_wakeup);
                        if (ofs < 0)
                                goto error;
                }
@@ -1247,7 +1248,8 @@ static int azx_setup_periods(struct azx *chip,
                                         period_bytes - pos_adj, 0);
                else
                        ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
-                                        period_bytes, 1);
+                                        period_bytes,
+                                        !substream->runtime->no_period_wakeup);
                if (ofs < 0)
                        goto error;
        }
@@ -1515,7 +1517,8 @@ static struct snd_pcm_hardware azx_pcm_hw = {
                                 /* No full-resume yet implemented */
                                 /* SNDRV_PCM_INFO_RESUME |*/
                                 SNDRV_PCM_INFO_PAUSE |
-                                SNDRV_PCM_INFO_SYNC_START),
+                                SNDRV_PCM_INFO_SYNC_START |
+                                SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
        .formats =              SNDRV_PCM_FMTBIT_S16_LE,
        .rates =                SNDRV_PCM_RATE_48000,
        .rate_min =             48000,