diff options
Diffstat (limited to 'sound/soc/codecs/sn95031.c')
| -rw-r--r-- | sound/soc/codecs/sn95031.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c index 84ffdebb8a8..887d618f4a6 100644 --- a/sound/soc/codecs/sn95031.c +++ b/sound/soc/codecs/sn95031.c @@ -28,6 +28,7 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/slab.h> +#include <linux/module.h> #include <asm/intel_scu_ipc.h> #include <sound/pcm.h> @@ -79,7 +80,7 @@ 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 +92,10 @@ 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 +103,7 @@ 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 +162,6 @@ 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 +658,7 @@ 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 +716,7 @@ 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 +827,6 @@ 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 |