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ASoC: wm8903: Make interrupt handler use regmap directly

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There's no urgent need for the interrupt handler to use the ASoC I/O
functions and it'll support a further move in where we request the
interrupt so call the regmap APIs directly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
This commit is contained in:
Mark Brown 2012-06-09 10:06:11 +08:00
parent 20c5fd3994
commit e373cbfb2f
1 changed files with 32 additions and 16 deletions
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46
sound/soc/codecs/wm8903.c
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@ -1636,17 +1636,27 @@ EXPORT_SYMBOL_GPL(wm8903_mic_detect);
static irqreturn_t wm8903_irq(int irq, void *data)
{
struct snd_soc_codec *codec = data;
struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
int mic_report;
int int_pol;
int int_val = 0;
int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
struct wm8903_priv *wm8903 = data;
int mic_report, ret;
unsigned int int_val, mask, int_pol;
int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
&mask);
if (ret != 0) {
dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
return IRQ_NONE;
}
ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
if (ret != 0) {
dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
return IRQ_NONE;
}
int_val &= ~mask;
if (int_val & WM8903_WSEQ_BUSY_EINT) {
dev_warn(codec->dev, "Write sequencer done\n");
dev_warn(wm8903->dev, "Write sequencer done\n");
}
/*
@ -1657,22 +1667,28 @@ static irqreturn_t wm8903_irq(int irq, void *data)
* the polarity register.
*/
mic_report = wm8903->mic_last_report;
int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
&int_pol);
if (ret != 0) {
dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
ret);
return IRQ_HANDLED;
}
#ifndef CONFIG_SND_SOC_WM8903_MODULE
if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
trace_snd_soc_jack_irq(dev_name(codec->dev));
trace_snd_soc_jack_irq(dev_name(wm8903->dev));
#endif
if (int_val & WM8903_MICSHRT_EINT) {
dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
mic_report ^= wm8903->mic_short;
int_pol ^= WM8903_MICSHRT_INV;
}
if (int_val & WM8903_MICDET_EINT) {
dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
mic_report ^= wm8903->mic_det;
int_pol ^= WM8903_MICDET_INV;
@ -1680,7 +1696,7 @@ static irqreturn_t wm8903_irq(int irq, void *data)
msleep(wm8903->mic_delay);
}
snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
snd_soc_jack_report(wm8903->mic_jack, mic_report,
@ -1907,7 +1923,7 @@ static int wm8903_probe(struct snd_soc_codec *codec)
ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq,
trigger | IRQF_ONESHOT,
"wm8903", codec);
"wm8903", wm8903);
if (ret != 0) {
dev_err(codec->dev, "Failed to request IRQ: %d\n",
ret);
@ -1963,7 +1979,7 @@ static int wm8903_remove(struct snd_soc_codec *codec)
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
if (wm8903->irq)
free_irq(wm8903->irq, codec);
free_irq(wm8903->irq, wm8903);
return 0;
}