ASoC: Add platform data for WM9081 IRQ pin configuration

The WM9081 IRQ output can be either active high or active low and can
support either CMOS or open drain modes.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

diff --git a/include/sound/wm9081.h b/include/sound/wm9081.h
index e173ddb..f34b0b1 100644 (file)
--- a/include/sound/wm9081.h
+++ b/include/sound/wm9081.h
@@ -17,9 +17,12 @@ struct wm9081_retune_mobile_setting {
        u16 config[20];
 };
 
-struct wm9081_retune_mobile_config {
-       struct wm9081_retune_mobile_setting *configs;
-       int num_configs;
+struct wm9081_pdata {
+       bool irq_high;   /* IRQ is active high */
+       bool irq_cmos;   /* IRQ is in CMOS mode */
+
+       struct wm9081_retune_mobile_setting *retune_configs;
+       int num_retune_configs;
 };
 
 #endif

diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index 2103623..7883f3e 100644 (file)
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -167,7 +167,7 @@ struct wm9081_priv {
        int fll_fref;
        int fll_fout;
        int tdm_width;
-       struct wm9081_retune_mobile_config *retune;
+       struct wm9081_pdata pdata;
 };
 
 static int wm9081_volatile_register(struct snd_soc_codec *codec, unsigned int reg)
@@ -1082,21 +1082,22 @@ static int wm9081_hw_params(struct snd_pcm_substream *substream,
        aif4 |= wm9081->bclk / wm9081->fs;
 
        /* Apply a ReTune Mobile configuration if it's in use */
-       if (wm9081->retune) {
-               struct wm9081_retune_mobile_config *retune = wm9081->retune;
+       if (wm9081->pdata.num_retune_configs) {
+               struct wm9081_pdata *pdata = &wm9081->pdata;
                struct wm9081_retune_mobile_setting *s;
                int eq1;
 
                best = 0;
-               best_val = abs(retune->configs[0].rate - wm9081->fs);
-               for (i = 0; i < retune->num_configs; i++) {
-                       cur_val = abs(retune->configs[i].rate - wm9081->fs);
+               best_val = abs(pdata->retune_configs[0].rate - wm9081->fs);
+               for (i = 0; i < pdata->num_retune_configs; i++) {
+                       cur_val = abs(pdata->retune_configs[i].rate -
+                                     wm9081->fs);
                        if (cur_val < best_val) {
                                best_val = cur_val;
                                best = i;
                        }
                }
-               s = &retune->configs[best];
+               s = &pdata->retune_configs[best];
 
                dev_dbg(codec->dev, "ReTune Mobile %s tuned for %dHz\n",
                        s->name, s->rate);
@@ -1255,6 +1256,14 @@ static int wm9081_probe(struct snd_soc_codec *codec)
                return ret;
        }
 
+       reg = 0;
+       if (wm9081->pdata.irq_high)
+               reg |= WM9081_IRQ_POL;
+       if (!wm9081->pdata.irq_cmos)
+               reg |= WM9081_IRQ_OP_CTRL;
+       snd_soc_update_bits(codec, WM9081_INTERRUPT_CONTROL,
+                           WM9081_IRQ_POL | WM9081_IRQ_OP_CTRL, reg);
+
        wm9081_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
        /* Enable zero cross by default */
@@ -1266,7 +1275,7 @@ static int wm9081_probe(struct snd_soc_codec *codec)
 
        snd_soc_add_controls(codec, wm9081_snd_controls,
                             ARRAY_SIZE(wm9081_snd_controls));
-       if (!wm9081->retune) {
+       if (!wm9081->pdata.num_retune_configs) {
                dev_dbg(codec->dev,
                        "No ReTune Mobile data, using normal EQ\n");
                snd_soc_add_controls(codec, wm9081_eq_controls,
@@ -1343,8 +1352,8 @@ static __devinit int wm9081_i2c_probe(struct i2c_client *i2c,
        wm9081->control_data = i2c;
 
        if (dev_get_platdata(&i2c->dev))
-               memcpy(&wm9081->retune, dev_get_platdata(&i2c->dev),
-                      sizeof(wm9081->retune));
+               memcpy(&wm9081->pdata, dev_get_platdata(&i2c->dev),
+                      sizeof(wm9081->pdata));
 
        ret = snd_soc_register_codec(&i2c->dev,
                        &soc_codec_dev_wm9081, &wm9081_dai, 1);