ASoC: wm8994: Move runtime PM init to platform device init

As well as being better style this allows the device to idle when there is
no audio card instantaited which is probably what we want.
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/wm8994.c

@@ -4014,9 +4014,6 @@ static int wm8994_codec_probe(struct snd_soc_codec *codec)
 
 	wm8994->micdet_irq = control->pdata.micdet_irq;
 
-	pm_runtime_enable(codec->dev);
-	pm_runtime_idle(codec->dev);
-
 	/* By default use idle_bias_off, will override for WM8994 */
 	codec->dapm.idle_bias_off = 1;
 
@@ -4389,8 +4386,6 @@ static int wm8994_codec_remove(struct snd_soc_codec *codec)
 
 	wm8994_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
-	pm_runtime_disable(codec->dev);
-
 	for (i = 0; i < ARRAY_SIZE(wm8994->fll_locked); i++)
 		wm8994_free_irq(wm8994->wm8994, WM8994_IRQ_FLL1_LOCK + i,
 				&wm8994->fll_locked[i]);
@@ -4449,6 +4444,9 @@ static int wm8994_probe(struct platform_device *pdev)
 
 	wm8994->wm8994 = dev_get_drvdata(pdev->dev.parent);
 
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_idle(&pdev->dev);
+
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8994,
 			wm8994_dai, ARRAY_SIZE(wm8994_dai));
 }
@@ -4456,6 +4454,8 @@ static int wm8994_probe(struct platform_device *pdev)
 static int wm8994_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_codec(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
 	return 0;
 }