Only enable and disable the FLL when explicitly told to, supporting some additional use cases and making the driver behaviour more standard.

Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/codecs/wm8962.c | 72 ++++----------------------------------------- 1 files changed, 6 insertions(+), 66 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index 58afbde..de74af7 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -1832,65 +1832,6 @@ SOC_SINGLE_TLV("SPKOUTR Mixer DACR Volume", WM8962_SPEAKER_MIXER_5, 4, 1, 0, inmix_tlv), };

-static int sysclk_event(struct snd_soc_dapm_widget *w, - struct snd_kcontrol *kcontrol, int event) -{ - struct snd_soc_codec *codec = w->codec; - struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec); - unsigned long timeout; - int src; - int fll; - - /* Ignore attempts to run the event during startup */ - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) - return 0; - - src = snd_soc_read(codec, WM8962_CLOCKING2) & WM8962_SYSCLK_SRC_MASK; - - switch (src) { - case 0: /* MCLK */ - fll = 0; - break; - case 0x200: /* FLL */ - fll = 1; - break; - default: - dev_err(codec->dev, "Unknown SYSCLK source %x\n", src); - return -EINVAL; - } - - switch (event) { - case SND_SOC_DAPM_PRE_PMU: - if (fll) { - try_wait_for_completion(&wm8962->fll_lock); - - snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, - WM8962_FLL_ENA, WM8962_FLL_ENA); - - timeout = msecs_to_jiffies(5); - timeout = wait_for_completion_timeout(&wm8962->fll_lock, - timeout); - - if (wm8962->irq && timeout == 0) - dev_err(codec->dev, - "Timed out starting FLL\n"); - } - break; - - case SND_SOC_DAPM_POST_PMD: - if (fll) - snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, - WM8962_FLL_ENA, 0); - break; - - default: - BUG(); - return -EINVAL; - } - - return 0; -} - static int cp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { @@ -2176,8 +2117,7 @@ SND_SOC_DAPM_INPUT("DMICDAT"), SND_SOC_DAPM_SUPPLY("MICBIAS", WM8962_PWR_MGMT_1, 1, 0, NULL, 0),

SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B, 0, 1, NULL, 0), -SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event, - SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("Charge Pump", WM8962_CHARGE_PUMP_1, 0, 0, cp_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_SUPPLY("TOCLK", WM8962_ADDITIONAL_CONTROL_1, 0, 0, NULL, 0), @@ -2880,8 +2820,7 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source, struct _fll_div fll_div; unsigned long timeout; int ret; - int fll1 = snd_soc_read(codec, WM8962_FLL_CONTROL_1) & WM8962_FLL_ENA; - int sysclk = snd_soc_read(codec, WM8962_CLOCKING2) & WM8962_SYSCLK_ENA; + int fll1 = 0;

/* Any change? */ if (source == wm8962->fll_src && Fref == wm8962->fll_fref && @@ -2904,6 +2843,9 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source, if (ret != 0) return ret;

+ /* Parameters good, disable so we can reprogram */ + snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, WM8962_FLL_ENA, 0); + switch (fll_id) { case WM8962_FLL_MCLK: case WM8962_FLL_BCLK: @@ -2942,12 +2884,10 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source,

try_wait_for_completion(&wm8962->fll_lock);

- if (sysclk) - fll1 |= WM8962_FLL_ENA;

snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, WM8962_FLL_FRAC | WM8962_FLL_REFCLK_SRC_MASK | - WM8962_FLL_ENA, fll1); + WM8962_FLL_ENA, fll1 | WM8962_FLL_ENA);

dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);