mfd: twl4030-audio: Rearange and clean-up the probe function

To facilitate the device tree support the probe function need to be rearanged.
Small cleanup in the APLL frequency selection part as well.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c
index 2ab8a1a..42e69ae 100644 (file)
--- a/drivers/mfd/twl4030-audio.c
+++ b/drivers/mfd/twl4030-audio.c
@@ -169,35 +169,30 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
+       audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio),
+                            GFP_KERNEL);
+       if (!audio)
+               return -ENOMEM;
+
+       mutex_init(&audio->mutex);
+       audio->audio_mclk = pdata->audio_mclk;
+
        /* Configure APLL_INFREQ and disable APLL if enabled */
-       val = 0;
-       switch (pdata->audio_mclk) {
+       switch (audio->audio_mclk) {
        case 19200000:
-               val |= TWL4030_APLL_INFREQ_19200KHZ;
+               val = TWL4030_APLL_INFREQ_19200KHZ;
                break;
        case 26000000:
-               val |= TWL4030_APLL_INFREQ_26000KHZ;
+               val = TWL4030_APLL_INFREQ_26000KHZ;
                break;
        case 38400000:
-               val |= TWL4030_APLL_INFREQ_38400KHZ;
+               val = TWL4030_APLL_INFREQ_38400KHZ;
                break;
        default:
                dev_err(&pdev->dev, "Invalid audio_mclk\n");
                return -EINVAL;
        }
-       twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-                                       val, TWL4030_REG_APLL_CTL);
-
-       audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio),
-                            GFP_KERNEL);
-       if (!audio)
-               return -ENOMEM;
-
-       platform_set_drvdata(pdev, audio);
-
-       twl4030_audio_dev = pdev;
-       mutex_init(&audio->mutex);
-       audio->audio_mclk = pdata->audio_mclk;
+       twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, val, TWL4030_REG_APLL_CTL);
 
        /* Codec power */
        audio->resource[TWL4030_AUDIO_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
@@ -222,6 +217,9 @@ static int __devinit twl4030_audio_probe(struct platform_device *pdev)
                childs++;
        }
 
+       platform_set_drvdata(pdev, audio);
+       twl4030_audio_dev = pdev;
+
        if (childs)
                ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells,
                                      childs, NULL, 0, NULL);