linux-kernel - [PATCH v4 03/14] MFD: twl4030-audio: Rearange and clean-up the probe function

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Message-Id: <1347273992-9107-4-git-send-email-peter.ujfalusi@ti.com>
Date:	Mon, 10 Sep 2012 13:46:21 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, Tony Lindgren <tony@...mide.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>
Cc:	Tero Kristo <t-kristo@...com>, alsa-devel@...a-project.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org,
	Benoit Cousson <b-cousson@...com>, linux-kernel@...r.kernel.org
Subject: [PATCH v4 03/14] 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@...com>
---
 drivers/mfd/twl4030-audio.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c
index efa2d42..ca2d669 100644
--- 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);
-- 
1.7.12

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