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authorAxel Lin <axel.lin@gmail.com>2011-11-09 17:00:05 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-09 11:45:31 +0000
commitb402735883c95c270ac42c40370a2663c2c81371 (patch)
tree2c82a3940f3d7f6adbfd0145dd8a2b57d2dc0c77 /sound/soc/codecs/wm9081.c
parent7d6f6b0f39c41f681e152cd9b1e54246ddb73028 (diff)
ASoC: wm9081: Use snd_soc_update_bits for read-modify-write
Use snd_soc_update_bits for read-modify-write register access instead of open-coding it using snd_soc_read and snd_soc_write Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/wm9081.c')
-rw-r--r--sound/soc/codecs/wm9081.c81
1 files changed, 35 insertions, 46 deletions
diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c
index b491ae19b84..f7c0738a9da 100644
--- a/sound/soc/codecs/wm9081.c
+++ b/sound/soc/codecs/wm9081.c
@@ -826,84 +826,74 @@ static const struct snd_soc_dapm_route wm9081_audio_paths[] = {
static int wm9081_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 reg;
-
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
/* VMID=2*40k */
- reg = snd_soc_read(codec, WM9081_VMID_CONTROL);
- reg &= ~WM9081_VMID_SEL_MASK;
- reg |= 0x2;
- snd_soc_write(codec, WM9081_VMID_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_VMID_CONTROL,
+ WM9081_VMID_SEL_MASK, 0x2);
/* Normal bias current */
- reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1);
- reg &= ~WM9081_STBY_BIAS_ENA;
- snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg);
+ snd_soc_update_bits(codec, WM9081_BIAS_CONTROL_1,
+ WM9081_STBY_BIAS_ENA, 0);
break;
case SND_SOC_BIAS_STANDBY:
/* Initial cold start */
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
/* Disable LINEOUT discharge */
- reg = snd_soc_read(codec, WM9081_ANTI_POP_CONTROL);
- reg &= ~WM9081_LINEOUT_DISCH;
- snd_soc_write(codec, WM9081_ANTI_POP_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_ANTI_POP_CONTROL,
+ WM9081_LINEOUT_DISCH, 0);
/* Select startup bias source */
- reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1);
- reg |= WM9081_BIAS_SRC | WM9081_BIAS_ENA;
- snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg);
+ snd_soc_update_bits(codec, WM9081_BIAS_CONTROL_1,
+ WM9081_BIAS_SRC | WM9081_BIAS_ENA,
+ WM9081_BIAS_SRC | WM9081_BIAS_ENA);
/* VMID 2*4k; Soft VMID ramp enable */
- reg = snd_soc_read(codec, WM9081_VMID_CONTROL);
- reg |= WM9081_VMID_RAMP | 0x6;
- snd_soc_write(codec, WM9081_VMID_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_VMID_CONTROL,
+ WM9081_VMID_RAMP |
+ WM9081_VMID_SEL_MASK,
+ WM9081_VMID_RAMP | 0x6);
mdelay(100);
/* Normal bias enable & soft start off */
- reg &= ~WM9081_VMID_RAMP;
- snd_soc_write(codec, WM9081_VMID_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_VMID_CONTROL,
+ WM9081_VMID_RAMP, 0);
/* Standard bias source */
- reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1);
- reg &= ~WM9081_BIAS_SRC;
- snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg);
+ snd_soc_update_bits(codec, WM9081_BIAS_CONTROL_1,
+ WM9081_BIAS_SRC, 0);
}
/* VMID 2*240k */
- reg = snd_soc_read(codec, WM9081_VMID_CONTROL);
- reg &= ~WM9081_VMID_SEL_MASK;
- reg |= 0x04;
- snd_soc_write(codec, WM9081_VMID_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_VMID_CONTROL,
+ WM9081_VMID_SEL_MASK, 0x04);
/* Standby bias current on */
- reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1);
- reg |= WM9081_STBY_BIAS_ENA;
- snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg);
+ snd_soc_update_bits(codec, WM9081_BIAS_CONTROL_1,
+ WM9081_STBY_BIAS_ENA,
+ WM9081_STBY_BIAS_ENA);
break;
case SND_SOC_BIAS_OFF:
/* Startup bias source and disable bias */
- reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1);
- reg |= WM9081_BIAS_SRC;
- reg &= ~WM9081_BIAS_ENA;
- snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg);
+ snd_soc_update_bits(codec, WM9081_BIAS_CONTROL_1,
+ WM9081_BIAS_SRC | WM9081_BIAS_ENA,
+ WM9081_BIAS_SRC);
/* Disable VMID with soft ramping */
- reg = snd_soc_read(codec, WM9081_VMID_CONTROL);
- reg &= ~WM9081_VMID_SEL_MASK;
- reg |= WM9081_VMID_RAMP;
- snd_soc_write(codec, WM9081_VMID_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_VMID_CONTROL,
+ WM9081_VMID_RAMP | WM9081_VMID_SEL_MASK,
+ WM9081_VMID_RAMP);
/* Actively discharge LINEOUT */
- reg = snd_soc_read(codec, WM9081_ANTI_POP_CONTROL);
- reg |= WM9081_LINEOUT_DISCH;
- snd_soc_write(codec, WM9081_ANTI_POP_CONTROL, reg);
+ snd_soc_update_bits(codec, WM9081_ANTI_POP_CONTROL,
+ WM9081_LINEOUT_DISCH,
+ WM9081_LINEOUT_DISCH);
break;
}
@@ -1291,11 +1281,10 @@ static int wm9081_probe(struct snd_soc_codec *codec)
wm9081_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Enable zero cross by default */
- reg = snd_soc_read(codec, WM9081_ANALOGUE_LINEOUT);
- snd_soc_write(codec, WM9081_ANALOGUE_LINEOUT, reg | WM9081_LINEOUTZC);
- reg = snd_soc_read(codec, WM9081_ANALOGUE_SPEAKER_PGA);
- snd_soc_write(codec, WM9081_ANALOGUE_SPEAKER_PGA,
- reg | WM9081_SPKPGAZC);
+ snd_soc_update_bits(codec, WM9081_ANALOGUE_LINEOUT,
+ WM9081_LINEOUTZC, WM9081_LINEOUTZC);
+ snd_soc_update_bits(codec, WM9081_ANALOGUE_SPEAKER_PGA,
+ WM9081_SPKPGAZC, WM9081_SPKPGAZC);
if (!wm9081->pdata.num_retune_configs) {
dev_dbg(codec->dev,