APLL_CTL register is configured by the twl4030-codec MFD driver. Remove code, which makes changes in the APLL_CTL register, and replace those with checks against the configured audio_mclk configuration done in the MFD driver.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@nokia.com --- sound/soc/codecs/twl4030.c | 69 ++++++++++++++++--------------------------- 1 files changed, 26 insertions(+), 43 deletions(-)
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index c0b47df..67cde72 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -214,7 +214,8 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
/* set all audio section registers to reasonable defaults */ for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++) - twl4030_write(codec, i, cache[i]); + if (i != TWL4030_REG_APLL_CTL) + twl4030_write(codec, i, cache[i]);
}
@@ -1753,30 +1754,23 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, { struct snd_soc_codec *codec = codec_dai->codec; struct twl4030_priv *twl4030 = codec->private_data; - u8 apll_ctrl;
- apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); - apll_ctrl &= ~TWL4030_APLL_INFREQ; switch (freq) { case 19200000: - apll_ctrl |= TWL4030_APLL_INFREQ_19200KHZ; - twl4030->sysclk = 19200; - break; case 26000000: - apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; - twl4030->sysclk = 26000; - break; case 38400000: - apll_ctrl |= TWL4030_APLL_INFREQ_38400KHZ; - twl4030->sysclk = 38400; break; default: - printk(KERN_ERR "TWL4030 set sysclk: unknown rate %d\n", - freq); + dev_err(codec->dev, "Unsupported frequency %u\n", freq); return -EINVAL; }
- twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); + if ((freq / 1000) != twl4030->sysclk) { + dev_err(codec->dev, + "Mismatch in APLL infrequency %u (configred: %u)\n", + freq, twl4030->sysclk * 1000); + return -EINVAL; + }
return 0; } @@ -1874,16 +1868,13 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; struct snd_soc_codec *codec = socdev->card->codec; - u8 infreq; + struct twl4030_priv *twl4030 = codec->private_data; u8 mode;
/* If the system master clock is not 26MHz, the voice PCM interface is * not avilable. */ - infreq = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL) - & TWL4030_APLL_INFREQ; - - if (infreq != TWL4030_APLL_INFREQ_26000KHZ) { + if (twl4030->sysclk != 26000) { printk(KERN_ERR "TWL4030 voice startup: " "MCLK is not 26MHz, call set_sysclk() on init\n"); return -EINVAL; @@ -1958,22 +1949,18 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; - u8 apll_ctrl; + struct twl4030_priv *twl4030 = codec->private_data;
- apll_ctrl = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL); - apll_ctrl &= ~TWL4030_APLL_INFREQ; - switch (freq) { - case 26000000: - apll_ctrl |= TWL4030_APLL_INFREQ_26000KHZ; - break; - default: - printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n", - freq); + if (freq != 26000000) { + dev_err(codec->dev, "Unsupported frequency %u\n", freq); + return -EINVAL; + } + if ((freq / 1000) != twl4030->sysclk) { + dev_err(codec->dev, + "Mismatch in APLL infrequency %u (configred: %u)\n", + freq, twl4030->sysclk * 1000); return -EINVAL; } - - twl4030_write(codec, TWL4030_REG_APLL_CTL, apll_ctrl); - return 0; }
@@ -2131,17 +2118,14 @@ static int twl4030_soc_probe(struct platform_device *pdev) if (setup) { unsigned char hs_pop;
- if (setup->sysclk) - twl4030->sysclk = setup->sysclk; - else - twl4030->sysclk = 26000; + if (setup->sysclk != twl4030->sysclk) + dev_warn(&pdev->dev, "sysclk mismatch (%u vs %u)\n", + twl4030->sysclk, setup->sysclk);
hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); hs_pop &= ~TWL4030_RAMP_DELAY; hs_pop |= (setup->ramp_delay_value << 2); twl4030_write_reg_cache(codec, TWL4030_REG_HS_POPN_SET, hs_pop); - } else { - twl4030->sysclk = 26000; }
/* register pcms */ @@ -2191,10 +2175,8 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev) struct twl4030_priv *twl4030; int ret;
- if (!pdata || !(pdata->audio_mclk == 19200000 || - pdata->audio_mclk == 26000000 || - pdata->audio_mclk == 38400000)) { - dev_err(&pdev->dev, "Invalid platform_data\n"); + if (!pdata) { + dev_err(&pdev->dev, "platform_data is missing\n"); return -EINVAL; }
@@ -2233,6 +2215,7 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev) twl4030_codec = codec;
/* Set the defaults, and power up the codec */ + twl4030->sysclk = twl4030_codec_get_mclk() / 1000; twl4030_init_chip(codec); codec->bias_level = SND_SOC_BIAS_OFF; twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);