ASoC: meson: Fix event generation for G12A tohdmi mux

commit 12131008fc13ff7f7690d170b7a8f72d24fd7d1e upstream.

The G12A tohdmi has a custom put() operation which returns 0 when the value
of the mux changes, meaning that events are not generated for userspace.
Change to return 1 in this case, the function returns early in the case
where there is no change.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20220421123803.292063-4-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/soc/meson/g12a-tohdmitx.c b/sound/soc/meson/g12a-tohdmitx.c
index 9cfbd343a00c86c1d3e80b72dc0ad799c4423f72..cbe47e0cae4264074e1dc7441b5fbcd809932251 100644 (file)
--- a/sound/soc/meson/g12a-tohdmitx.c
+++ b/sound/soc/meson/g12a-tohdmitx.c
@@ -127,7 +127,7 @@ static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol,
 
        snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
 
-       return 0;
+       return 1;
 }
 
 static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux =