summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/sn95031.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/sn95031.c')
-rw-r--r--sound/soc/codecs/sn95031.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index 84ffdebb8a8b..f681e41fc12e 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -79,7 +79,7 @@ static void configure_adc(struct snd_soc_codec *sn95031_codec, int val)
*/
static int find_free_channel(struct snd_soc_codec *sn95031_codec)
{
- int ret = 0, i, value;
+ int i, value;
/* check whether ADC is enabled */
value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
@@ -91,12 +91,10 @@ static int find_free_channel(struct snd_soc_codec *sn95031_codec)
for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) {
value = snd_soc_read(sn95031_codec,
SN95031_ADC_CHNL_START_ADDR + i);
- if (value & SN95031_STOPBIT_MASK) {
- ret = i;
+ if (value & SN95031_STOPBIT_MASK)
break;
- }
}
- return (ret > SN95031_ADC_LOOP_MAX) ? (-EINVAL) : ret;
+ return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i;
}
/* Initialize the ADC for reading micbias values. Can sleep. */
@@ -104,7 +102,7 @@ static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec)
{
int base_addr, chnl_addr;
int value;
- static int channel_index;
+ int channel_index;
/* Index of the first channel in which the stop bit is set */
channel_index = find_free_channel(sn95031_codec);
@@ -163,7 +161,6 @@ static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec)
pr_debug("mic bias = %dmV\n", mic_bias);
return mic_bias;
}
-EXPORT_SYMBOL_GPL(sn95031_get_mic_bias);
/*end - adc helper functions */
static inline unsigned int sn95031_read(struct snd_soc_codec *codec,
@@ -660,7 +657,7 @@ static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
return 0;
}
-int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
+static int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
unsigned int format, rate;
@@ -718,7 +715,7 @@ static struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
.hw_params = sn95031_pcm_hw_params,
};
-struct snd_soc_dai_driver sn95031_dais[] = {
+static struct snd_soc_dai_driver sn95031_dais[] = {
{
.name = "SN95031 Headset",
.playback = {
@@ -829,7 +826,6 @@ static int sn95031_codec_probe(struct snd_soc_codec *codec)
{
pr_debug("codec_probe called\n");
- codec->dapm.bias_level = SND_SOC_BIAS_OFF;
codec->dapm.idle_bias_off = 1;
/* PCM interface config