From 576411be200ee0e0801f1fe57d5e7ee787bb1a90 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 5 Mar 2013 12:07:16 +0800 Subject: [PATCH] ASoC: arizona: Increase FLL synchroniser bandwidth for high frequencies If we are using a high freqency SYNCCLK then increasing the bandwidth of the synchroniser improves performance. Signed-off-by: Mark Brown --- sound/soc/codecs/arizona.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 0599ff8ea935..e3aee143487e 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -1157,6 +1157,17 @@ static void arizona_enable_fll(struct arizona_fll *fll, return; } + /* + * Increase the bandwidth if we're not using a low frequency + * sync source. + */ + if (fll->sync_src >= 0 && fll->sync_freq > 100000) + regmap_update_bits(arizona->regmap, fll->base + 0x17, + ARIZONA_FLL1_SYNC_BW, 0); + else + regmap_update_bits(arizona->regmap, fll->base + 0x17, + ARIZONA_FLL1_SYNC_BW, ARIZONA_FLL1_SYNC_BW); + if (!arizona_is_enabled_fll(fll)) pm_runtime_get(arizona->dev); -- 2.11.0