[PATCH 3.12 024/212] ASoC: arizona: Set FLL to free-run before disabling

[Greg Kroah-Hartman]

3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

commit 3e68ce1bc72e5d6615677ec5a8b0a9bcb6c7a490 upstream.

The FLL must be placed into free-run mode before disabling
to allow it to entirely shut down.

Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/soc/codecs/arizona.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1525,6 +1525,8 @@ static void arizona_enable_fll(struct ar
 	try_wait_for_completion(&fll->ok);
 
 	regmap_update_bits(arizona->regmap, fll->base + 1,
+			   ARIZONA_FLL1_FREERUN, 0);
+	regmap_update_bits(arizona->regmap, fll->base + 1,
 			   ARIZONA_FLL1_ENA, ARIZONA_FLL1_ENA);
 	if (fll->ref_src >= 0 && fll->sync_src >= 0 &&
 	    fll->ref_src != fll->sync_src)
@@ -1543,6 +1545,8 @@ static void arizona_disable_fll(struct a
 	struct arizona *arizona = fll->arizona;
 	bool change;
 
+	regmap_update_bits(arizona->regmap, fll->base + 1,
+			   ARIZONA_FLL1_FREERUN, ARIZONA_FLL1_FREERUN);
 	regmap_update_bits_check(arizona->regmap, fll->base + 1,
 				 ARIZONA_FLL1_ENA, 0, &change);
 	regmap_update_bits(arizona->regmap, fll->base + 0x11,


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