The kcontrol put callback is expected to return 1 when there is change in HW or when the update is acknowledged by driver. This would ensure that change notifications are sent to subscribed applications. Update the I2S driver accordingly.
Fixes: c0bfa98349d1 ("ASoC: tegra: Add Tegra210 based I2S driver") Suggested-by: Jaroslav Kysela perex@perex.cz Suggested-by: Mark Brown broonie@kernel.org Signed-off-by: Sameer Pujar spujar@nvidia.com --- sound/soc/tegra/tegra210_i2s.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/tegra/tegra210_i2s.c b/sound/soc/tegra/tegra210_i2s.c index 45f31cc..b738b21 100644 --- a/sound/soc/tegra/tegra210_i2s.c +++ b/sound/soc/tegra/tegra210_i2s.c @@ -380,9 +380,11 @@ static int tegra210_i2s_put_control(struct snd_kcontrol *kcontrol, i2s->rx_fifo_th = value; } else if (strstr(kcontrol->id.name, "BCLK Ratio")) { i2s->bclk_ratio = value; + } else { + return 0; }
- return 0; + return 1; }
static int tegra210_i2s_set_timing_params(struct device *dev,