diff options
Diffstat (limited to 'sound/soc/codecs/wm8996.c')
| -rw-r--r-- | sound/soc/codecs/wm8996.c | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 13aa2bdaa7d7..3fc30c29f5f1 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -90,6 +90,7 @@ struct wm8996_priv { struct snd_soc_jack *jack; bool detecting; bool jack_mic; + int jack_flips; wm8996_polarity_fn polarity_cb; #ifdef CONFIG_GPIOLIB @@ -2438,6 +2439,7 @@ int wm8996_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack, wm8996->jack = jack; wm8996->detecting = true; wm8996->polarity_cb = polarity_cb; + wm8996->jack_flips = 0; if (wm8996->polarity_cb) wm8996->polarity_cb(codec, 0); @@ -2553,6 +2555,19 @@ static void wm8996_hpdet_start(struct snd_soc_codec *codec) WM8996_HP_POLL, WM8996_HP_POLL); } +static void wm8996_report_headphone(struct snd_soc_codec *codec) +{ + dev_dbg(codec->dev, "Headphone detected\n"); + wm8996_hpdet_start(codec); + + /* Increase the detection rate a bit for responsiveness. */ + snd_soc_update_bits(codec, WM8996_MIC_DETECT_1, + WM8996_MICD_RATE_MASK | + WM8996_MICD_BIAS_STARTTIME_MASK, + 7 << WM8996_MICD_RATE_SHIFT | + 7 << WM8996_MICD_BIAS_STARTTIME_SHIFT); +} + static void wm8996_micd(struct snd_soc_codec *codec) { struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec); @@ -2572,6 +2587,7 @@ static void wm8996_micd(struct snd_soc_codec *codec) dev_dbg(codec->dev, "Jack removal detected\n"); wm8996->jack_mic = false; wm8996->detecting = true; + wm8996->jack_flips = 0; snd_soc_jack_report(wm8996->jack, 0, SND_JACK_LINEOUT | SND_JACK_HEADSET | SND_JACK_BTN_0); @@ -2612,9 +2628,17 @@ static void wm8996_micd(struct snd_soc_codec *codec) /* If we detected a lower impedence during initial startup * then we probably have the wrong polarity, flip it. Don't * do this for the lowest impedences to speed up detection of - * plain headphones. + * plain headphones. If both polarities report a low + * impedence then give up and report headphones. */ if (wm8996->detecting && (val & 0x3f0)) { + wm8996->jack_flips++; + + if (wm8996->jack_flips > 1) { + wm8996_report_headphone(codec); + return; + } + reg = snd_soc_read(codec, WM8996_ACCESSORY_DETECT_MODE_2); reg ^= WM8996_HPOUT1FB_SRC | WM8996_MICD_SRC | WM8996_MICD_BIAS_SRC; @@ -2641,17 +2665,7 @@ static void wm8996_micd(struct snd_soc_codec *codec) snd_soc_jack_report(wm8996->jack, SND_JACK_BTN_0, SND_JACK_BTN_0); } else if (wm8996->detecting) { - dev_dbg(codec->dev, "Headphone detected\n"); - wm8996_hpdet_start(codec); - - /* Increase the detection rate a bit for - * responsiveness. - */ - snd_soc_update_bits(codec, WM8996_MIC_DETECT_1, - WM8996_MICD_RATE_MASK | - WM8996_MICD_BIAS_STARTTIME_MASK, - 7 << WM8996_MICD_RATE_SHIFT | - 7 << WM8996_MICD_BIAS_STARTTIME_SHIFT); + wm8996_report_headphone(codec); } } } @@ -2791,7 +2805,6 @@ static int wm8996_probe(struct snd_soc_codec *codec) int ret; struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec); struct i2c_client *i2c = to_i2c_client(codec->dev); - struct snd_soc_dapm_context *dapm = &codec->dapm; int i, irq_flags; wm8996->codec = codec; @@ -2799,8 +2812,6 @@ static int wm8996_probe(struct snd_soc_codec *codec) init_completion(&wm8996->dcs_done); init_completion(&wm8996->fll_lock); - dapm->idle_bias_off = true; - codec->control_data = wm8996->regmap; ret = snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_REGMAP); @@ -3054,6 +3065,7 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8996 = { .probe = wm8996_probe, .remove = wm8996_remove, .set_bias_level = wm8996_set_bias_level, + .idle_bias_off = true, .seq_notifier = wm8996_seq_notifier, .controls = wm8996_snd_controls, .num_controls = ARRAY_SIZE(wm8996_snd_controls), @@ -3087,6 +3099,7 @@ static struct snd_soc_dai_driver wm8996_dai[] = { .channels_max = 6, .rates = WM8996_RATES, .formats = WM8996_FORMATS, + .sig_bits = 24, }, .capture = { .stream_name = "AIF1 Capture", @@ -3094,6 +3107,7 @@ static struct snd_soc_dai_driver wm8996_dai[] = { .channels_max = 6, .rates = WM8996_RATES, .formats = WM8996_FORMATS, + .sig_bits = 24, }, .ops = &wm8996_dai_ops, }, @@ -3105,6 +3119,7 @@ static struct snd_soc_dai_driver wm8996_dai[] = { .channels_max = 2, .rates = WM8996_RATES, .formats = WM8996_FORMATS, + .sig_bits = 24, }, .capture = { .stream_name = "AIF2 Capture", @@ -3112,6 +3127,7 @@ static struct snd_soc_dai_driver wm8996_dai[] = { .channels_max = 2, .rates = WM8996_RATES, .formats = WM8996_FORMATS, + .sig_bits = 24, }, .ops = &wm8996_dai_ops, }, |