[PATCH v2 05/10] ASoC: tegra: Fix kcontrol put callback in AHUB

Sameer Pujar
2021-11-03T13:53:30Z

that change notifications are sent to subscribed applications. Update
the AHUB driver accordingly.

Fixes: 16e1bcc2caf4 ("ASoC: tegra: Add Tegra210 based AHUB driver")
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
---
sound/soc/tegra/tegra210_ahub.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sound/soc/tegra/tegra210_ahub.c b/sound/soc/tegra/tegra210_ahub.c
index a1989ea..388b815 100644
--- a/sound/soc/tegra/tegra210_ahub.c
+++ b/sound/soc/tegra/tegra210_ahub.c
@@ -62,6 +62,7 @@ static int tegra_ahub_put_value_enum(struct snd_kcontrol *kctl,
unsigned int *item = uctl->value.enumerated.item;
unsigned int value = e->values[item[0]];
unsigned int i, bit_pos, reg_idx = 0, reg_val = 0;
+ int change = 0;

if (item[0] >= e->items)
return -EINVAL;
@@ -86,12 +87,14 @@ static int tegra_ahub_put_value_enum(struct snd_kcontrol *kctl,

/* Update widget power if state has changed */
if (snd_soc_component_test_bits(cmpnt, update[i].reg,
- update[i].mask, update[i].val))
- snd_soc_dapm_mux_update_power(dapm, kctl, item[0], e,
- &update[i]);
+ update[i].mask,
+ update[i].val))
+ change |= snd_soc_dapm_mux_update_power(dapm, kctl,
+ item[0], e,
+ &update[i]);
}

- return 0;
+ return change;
}

static struct snd_soc_dai_driver tegra210_ahub_dais[] = {
--
2.7.4