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ASoC: Tune the accessory detection rates for WM8996 

Use longer intervals when the microphone is not inserted to increase
robustness against leisurely insertion.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-12-14 19:23:37 +08:00
parent a3462490b4
commit 45ba82d817
1 changed files with 12 additions and 6 deletions
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18
sound/soc/codecs/wm8996.c
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@ -2572,8 +2572,10 @@ static void wm8996_micd(struct snd_soc_codec *codec)
SND_JACK_BTN_0);
snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
WM8996_MICD_RATE_MASK,
WM8996_MICD_RATE_MASK);
WM8996_MICD_RATE_MASK |
WM8996_MICD_BIAS_STARTTIME_MASK,
WM8996_MICD_RATE_MASK |
9 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
return;
}
@ -2590,8 +2592,10 @@ static void wm8996_micd(struct snd_soc_codec *codec)
/* Increase poll rate to give better responsiveness
* for buttons */
snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
WM8996_MICD_RATE_MASK,
5 << WM8996_MICD_RATE_SHIFT);
WM8996_MICD_RATE_MASK |
WM8996_MICD_BIAS_STARTTIME_MASK,
5 << WM8996_MICD_RATE_SHIFT |
7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
} else {
dev_dbg(codec->dev, "Mic button up\n");
snd_soc_jack_report(wm8996->jack, 0, SND_JACK_BTN_0);
@ -2639,8 +2643,10 @@ static void wm8996_micd(struct snd_soc_codec *codec)
* responsiveness.
*/
snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,
WM8996_MICD_RATE_MASK,
7 << WM8996_MICD_RATE_SHIFT);
WM8996_MICD_RATE_MASK |
WM8996_MICD_BIAS_STARTTIME_MASK,
7 << WM8996_MICD_RATE_SHIFT |
7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);
}
}
}