diff options
Diffstat (limited to 'sound/soc/tegra')
| -rw-r--r-- | sound/soc/tegra/tegra20_spdif.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c index 57a6c576b91f..e45e371edc42 100644 --- a/sound/soc/tegra/tegra20_spdif.c +++ b/sound/soc/tegra/tegra20_spdif.c @@ -69,6 +69,14 @@ static int tegra20_spdif_hw_params(struct snd_pcm_substream *substream, regmap_update_bits(spdif->regmap, TEGRA20_SPDIF_CTRL, mask, val); + /* + * FIFO trigger level must be bigger than DMA burst or equal to it, + * otherwise data is discarded on overflow. + */ + regmap_update_bits(spdif->regmap, TEGRA20_SPDIF_DATA_FIFO_CSR, + TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK, + TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL); + switch (params_rate(params)) { case 32000: spdifclock = 4096000; |