diff options
Diffstat (limited to '0017-ASoC-SOF-enable-sync_write-in-hdac_bus.patch')
| -rw-r--r-- | 0017-ASoC-SOF-enable-sync_write-in-hdac_bus.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/0017-ASoC-SOF-enable-sync_write-in-hdac_bus.patch b/0017-ASoC-SOF-enable-sync_write-in-hdac_bus.patch new file mode 100644 index 0000000..ee901e8 --- /dev/null +++ b/0017-ASoC-SOF-enable-sync_write-in-hdac_bus.patch @@ -0,0 +1,39 @@ +From 7699523eeae2b47440faa96cbed32c5e23db0e75 Mon Sep 17 00:00:00 2001 +From: Kai Vehmanen <kai.vehmanen@linux.intel.com> +Date: Tue, 8 Oct 2019 11:44:35 -0500 +Subject: ASoC: SOF: enable sync_write in hdac_bus + +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> +Link: https://lore.kernel.org/r/20191008164443.1358-2-pierre-louis.bossart@linux.intel.com +Signed-off-by: Mark Brown <broonie@kernel.org> +--- + sound/soc/sof/intel/hda.c | 1 + + 1 file changed, 1 insertion(+) + +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; +-- +cgit v1.2.1-1-g437b + |