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authorAxel Lin <axel.lin@gmail.com>2011-10-07 21:53:39 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-10 10:29:59 +0100
commitfa5fdb473e9c593525601d445124d563c6be150e (patch)
tree2015981ad969dcc93668095c3f1a9a8593b1790c /sound
parent0bad3d8453e60ed5093ffccc0dd906ffb9bfe62c (diff)
downloadlinux-stable-rt-fa5fdb473e9c593525601d445124d563c6be150e.tar.gz
ASoC: wm8988: Convert to snd_soc_cache_sync
Convert to snd_soc_cache_sync for sync reg_cache with the hardware. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/wm8988.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c
index 1c6f8bfbf94a75..2e9eba717d1a9a 100644
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -55,7 +55,6 @@ struct wm8988_priv {
struct snd_pcm_hw_constraint_list *sysclk_constraints;
};
-
#define wm8988_reset(c) snd_soc_write(c, WM8988_RESET, 0)
/*
@@ -676,6 +675,8 @@ static int wm8988_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ snd_soc_cache_sync(codec);
+
/* VREF, VMID=2x5k */
snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x1c1);
@@ -736,21 +737,7 @@ static int wm8988_suspend(struct snd_soc_codec *codec, pm_message_t state)
static int wm8988_resume(struct snd_soc_codec *codec)
{
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
-
- /* Sync reg_cache with the hardware */
- for (i = 0; i < WM8988_NUM_REG; i++) {
- if (i == WM8988_RESET)
- continue;
- data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
-
wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
return 0;
}