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authorMark Brown <broonie@kernel.org>2022-06-03 15:25:26 +0300
committerMark Brown <broonie@kernel.org>2022-06-24 18:21:45 +0300
commit10e7ff0047921e32b919ecee7be706dd33c107f8 (patch)
treeb3f7ee5585d5d23f0032f25a93cfe4ae906c83d8 /sound
parenta7786cbae4b2732815da98efa39df96746b5bd0d (diff)
downloadlinux-10e7ff0047921e32b919ecee7be706dd33c107f8.tar.xz
ASoC: wcd938x: Fix event generation for some controls
Currently wcd938x_*_put() unconditionally report that the value of the control changed, resulting in spurious events being generated. Return 0 in that case instead as we should. There is still an issue in the compander control which is a bit more complex. Signed-off-by: Mark Brown <broonie@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20220603122526.3914942-1-broonie@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wcd938x.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index c1b61b997f69..781ae569be29 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -2519,6 +2519,9 @@ static int wcd938x_tx_mode_put(struct snd_kcontrol *kcontrol,
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
int path = e->shift_l;
+ if (wcd938x->tx_mode[path] == ucontrol->value.enumerated.item[0])
+ return 0;
+
wcd938x->tx_mode[path] = ucontrol->value.enumerated.item[0];
return 1;
@@ -2541,6 +2544,9 @@ static int wcd938x_rx_hph_mode_put(struct snd_kcontrol *kcontrol,
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ if (wcd938x->hph_mode == ucontrol->value.enumerated.item[0])
+ return 0;
+
wcd938x->hph_mode = ucontrol->value.enumerated.item[0];
return 1;
@@ -2632,6 +2638,9 @@ static int wcd938x_ldoh_put(struct snd_kcontrol *kcontrol,
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ if (wcd938x->ldoh == ucontrol->value.integer.value[0])
+ return 0;
+
wcd938x->ldoh = ucontrol->value.integer.value[0];
return 1;
@@ -2654,6 +2663,9 @@ static int wcd938x_bcs_put(struct snd_kcontrol *kcontrol,
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ if (wcd938x->bcs_dis == ucontrol->value.integer.value[0])
+ return 0;
+
wcd938x->bcs_dis = ucontrol->value.integer.value[0];
return 1;