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[1/9] ASoC: SOF: enable sync_write in hdac_bus

Message ID 20191008164443.1358-2-pierre-louis.bossart@linux.intel.com (mailing list archive)
State Accepted
Commit f3416e7144f5d4ba0fc5dcef6ebfff891266c46a
Headers show
Series ASoC: SOF updates for Intel/i.MX | expand

Commit Message

Pierre-Louis Bossart Oct. 8, 2019, 4:44 p.m. UTC 
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Align SOF HDA implementation with snd-hda-intel driver and enable
sync_write flag for all supported Intel platforms in SOF. When set,
a sync is issued after each verb write.

Sync after write has helped to overcome intermittent delays in
system resume flow on Intel Coffee Lake systems, and most recently
probe errors related to the HDMI codec on Ice Lake systems.

Matches the snd-hda-intel driver change done in commit 2756d9143aa5
("ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips").

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/intel/hda.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 06e84679087b..5a5163eef2ef 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -268,6 +268,7 @@  static int hda_init(struct snd_sof_dev *sdev)
 
 	bus->use_posbuf = 1;
 	bus->bdl_pos_adj = 0;
+	bus->sync_write = 1;
 
 	mutex_init(&hbus->prepare_mutex);
 	hbus->pci = pci;