From e6a9be0bb018466896632969ba4b496d1a7caea9 Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie@opensource.wolfsonmicro.com> Date: Wed, 1 Jun 2011 20:16:40 +0100 Subject: [PATCH] ASoC: Use a lower detection rate when monitoring headphones on WM8915 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> --- sound/soc/codecs/wm8915.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/wm8915.c b/sound/soc/codecs/wm8915.c index 5ff6a773c8fb..5a59ef73e702 100644 --- a/sound/soc/codecs/wm8915.c +++ b/sound/soc/codecs/wm8915.c @@ -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)