From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sun, 21 Aug 2011 16:18:52 +0000 (+0100)
Subject: ASoC: Clear any outstanding WM8962 FLL lock completions before waiting
X-Git-Tag: v3.1-rc9~2^2~28
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4df0cb2fa977f99963b616487a22ebd021ea5463;p=platform%2Fkernel%2Flinux-stable.git

ASoC: Clear any outstanding WM8962 FLL lock completions before waiting

Ensure that we don't spuriously trigger early.

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

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 28650ed..1725550 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -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);