From: Mark Brown <broonie@xxxxxxxxxx> commit fce49921a22262736cdc3cc74fa67915b75e9363 upstream. The AIU CODEC 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@xxxxxxxxxx> Reviewed-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220421123803.292063-3-broonie@xxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/soc/meson/aiu-codec-ctrl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/sound/soc/meson/aiu-codec-ctrl.c +++ b/sound/soc/meson/aiu-codec-ctrl.c @@ -57,7 +57,7 @@ static int aiu_codec_ctrl_mux_put_enum(s snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); - return 0; + return 1; } static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL,
