From 45e967553f3466f773ecd418c09fe92b753f18b0 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 2 Dec 2011 18:23:37 +0000 Subject: [PATCH] ASoC: Use a normal cache sync for WM8903 The driver used to use a complicated method to sync the register cache after having brought the bias level up to standby in resume due to the use of the write sequencer to manage the initial power up. Now that we don't use the write sequencer there is no need for this and we can just use snd_soc_cache_sync() directly. Signed-off-by: Mark Brown Tested-by: Stephen Warren --- sound/soc/codecs/wm8903.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index 745681258eda..fdc3ff053f98 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -1767,23 +1767,11 @@ static int wm8903_suspend(struct snd_soc_codec *codec) static int wm8903_resume(struct snd_soc_codec *codec) { - int i; - u16 *reg_cache = codec->reg_cache; - u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults), - GFP_KERNEL); + struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - /* Bring the codec back up to standby first to minimise pop/clicks */ - wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + snd_soc_cache_sync(codec); - /* Sync back everything else */ - if (tmp_cache) { - for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++) - if (tmp_cache[i] != reg_cache[i]) - snd_soc_write(codec, i, tmp_cache[i]); - kfree(tmp_cache); - } else { - dev_err(codec->dev, "Failed to allocate temporary cache\n"); - } + wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; } -- 2.34.1