ASoC: wm8903: Make interrupt handler use regmap directly

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>

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index 64ca904..f5d47c8 100644 (file)
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -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;
+
+       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 = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
+       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;
@@ -1680,8 +1696,8 @@ static irqreturn_t wm8903_irq(int irq, void *data)
                msleep(wm8903->mic_delay);
        }
 
-       snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
-                           WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
+       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,
                            wm8903->mic_short | wm8903->mic_det);
@@ -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;
 }