ASoC: Clear any outstanding WM8962 FLL lock completions before waiting
Mark Brown [Sun, 21 Aug 2011 16:18:52 +0000 (17:18 +0100)]
Ensure that we don't spuriously trigger early.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

sound/soc/codecs/wm8962.c

index 28650ed..1725550 100644 (file)
@@ -2221,6 +2221,8 @@ static int sysclk_event(struct snd_soc_dapm_widget *w,
        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);
                        if (wm8962->irq) {
@@ -3284,6 +3286,8 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
        snd_soc_write(codec, WM8962_FLL_CONTROL_7, fll_div.lambda);
        snd_soc_write(codec, WM8962_FLL_CONTROL_8, fll_div.n);
 
+       try_wait_for_completion(&wm8962->fll_lock);
+
        snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
                            WM8962_FLL_FRAC | WM8962_FLL_REFCLK_SRC_MASK |
                            WM8962_FLL_ENA, fll1);