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| author |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-11-10 12:08:12 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-11-10 12:08:12 +0000 |
| commit | 0969afcc449d5d655784c04e938cf4cfc6e89c0e (patch) | |
| tree | a763ddfc2969cb820da13dcec6065801bfe79f65 /drivers/mfd | |
| parent | ASoC: omap-mcbsp - add support for upto 16 channels. (diff) | |
| parent | MFD: twl4030-codec: APLL_INFREQ handling in the MFD driver (diff) | |
| download | linux-dev-0969afcc449d5d655784c04e938cf4cfc6e89c0e.tar.xz linux-dev-0969afcc449d5d655784c04e938cf4cfc6e89c0e.zip | |
Merge branch 'twl4030-mfd' into for-2.6.33
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/twl4030-codec.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/mfd/twl4030-codec.c b/drivers/mfd/twl4030-codec.c index 97103078dc2a..77b914907d7c 100644 --- a/drivers/mfd/twl4030-codec.c +++ b/drivers/mfd/twl4030-codec.c @@ -41,6 +41,7 @@ struct twl4030_codec_resource { }; struct twl4030_codec { + unsigned int audio_mclk; struct mutex mutex; struct twl4030_codec_resource resource[TWL4030_CODEC_RES_MAX]; struct mfd_cell cells[TWL4030_CODEC_CELLS]; @@ -145,12 +146,45 @@ int twl4030_codec_disable_resource(unsigned id) } EXPORT_SYMBOL_GPL(twl4030_codec_disable_resource); +unsigned int twl4030_codec_get_mclk(void) +{ + struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev); + + return codec->audio_mclk; +} +EXPORT_SYMBOL_GPL(twl4030_codec_get_mclk); + static int __devinit twl4030_codec_probe(struct platform_device *pdev) { struct twl4030_codec *codec; struct twl4030_codec_data *pdata = pdev->dev.platform_data; struct mfd_cell *cell = NULL; int ret, childs = 0; + u8 val; + + if (!pdata) { + dev_err(&pdev->dev, "Platform data is missing\n"); + return -EINVAL; + } + + /* Configure APLL_INFREQ and disable APLL if enabled */ + val = 0; + switch (pdata->audio_mclk) { + case 19200000: + val |= TWL4030_APLL_INFREQ_19200KHZ; + break; + case 26000000: + val |= TWL4030_APLL_INFREQ_26000KHZ; + break; + case 38400000: + val |= TWL4030_APLL_INFREQ_38400KHZ; + break; + default: + dev_err(&pdev->dev, "Invalid audio_mclk\n"); + return -EINVAL; + } + twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, + val, TWL4030_REG_APLL_CTL); codec = kzalloc(sizeof(struct twl4030_codec), GFP_KERNEL); if (!codec) @@ -160,6 +194,7 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev) twl4030_codec_dev = pdev; mutex_init(&codec->mutex); + codec->audio_mclk = pdata->audio_mclk; /* Codec power */ codec->resource[TWL4030_CODEC_RES_POWER].reg = TWL4030_REG_CODEC_MODE; |