ALSA: hda/tegra: Disable sync-write operation

Commit f34a4c9dd4ca ("ALSA: hda: Enable sync-write operation as default
for all controllers") enabled sync-write for all controllers and this is
causing audio playback on the Tegra186 HDA device to fail. For now,
disable sync-write support for Tegra to fix this.

Fixes: f34a4c9dd4ca ("ALSA: hda: Enable sync-write operation as default for all controllers")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200714160841.2293-1-jonathanh@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 0cc5fad..5637f01 100644 (file)
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -443,6 +443,7 @@ static int hda_tegra_create(struct snd_card *card,
        if (err < 0)
                return err;
 
+       chip->bus.core.sync_write = 0;
        chip->bus.core.needs_damn_long_delay = 1;
        chip->bus.core.aligned_mmio = 1;