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ASoC: Use a lower detection rate when monitoring headphones on WM8915

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We only need to increase the detection rate to maximum if we're monitoring
for button presses as the response times needed for user interaction there
are much lower.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Mark Brown 2011-06-01 20:16:40 +01:00
parent 1e025a3692
commit e6a9be0bb0
1 changed files with 14 additions and 6 deletions
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20
sound/soc/codecs/wm8915.c
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@ -2288,6 +2288,12 @@ static void wm8915_micd(struct snd_soc_codec *codec)
SND_JACK_HEADSET | SND_JACK_BTN_0);
wm8915->jack_mic = true;
wm8915->detecting = false;
/* Increase poll rate to give better responsiveness
* for buttons */
snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
WM8915_MICD_RATE_MASK,
5 << WM8915_MICD_RATE_SHIFT);
}
/* If we detected a lower impedence during initial startup
@ -2328,15 +2334,17 @@ static void wm8915_micd(struct snd_soc_codec *codec)
SND_JACK_HEADPHONE,
SND_JACK_HEADSET |
SND_JACK_BTN_0);
/* Increase the detection rate a bit for
* responsiveness.
*/
snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
WM8915_MICD_RATE_MASK,
7 << WM8915_MICD_RATE_SHIFT);
wm8915->detecting = false;
}
}
/* Increase poll rate to give better responsiveness for buttons */
if (!wm8915->detecting)
snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
WM8915_MICD_RATE_MASK,
5 << WM8915_MICD_RATE_SHIFT);
}
static irqreturn_t wm8915_irq(int irq, void *data)