diff options
Diffstat (limited to 'sound/soc/tegra/tegra210_amx.c')
| -rw-r--r-- | sound/soc/tegra/tegra210_amx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_amx.c b/sound/soc/tegra/tegra210_amx.c index af9bddfc3120..689576302ede 100644 --- a/sound/soc/tegra/tegra210_amx.c +++ b/sound/soc/tegra/tegra210_amx.c @@ -222,6 +222,9 @@ static int tegra210_amx_put_byte_map(struct snd_kcontrol *kcontrol, int reg = mc->reg; int value = ucontrol->value.integer.value[0]; + if (value == bytes_map[reg]) + return 0; + if (value >= 0 && value <= 255) { /* Update byte map and enable slot */ bytes_map[reg] = value; |