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| author | Axel Lin <axel.lin@gmail.com> | 2011-10-17 11:50:46 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-17 22:49:28 +0100 |
| commit | a6785d7df8d2790d99a4788a612764a92fb9f498 (patch) | |
| tree | 897d3ba85a299a6a24e087220e2810a086cc1595 | |
| parent | 29c6a01df8de1329303da09ca9793e9f65608216 (diff) | |
| download | talos-obmc-linux-a6785d7df8d2790d99a4788a612764a92fb9f498.tar.gz talos-obmc-linux-a6785d7df8d2790d99a4788a612764a92fb9f498.zip | |
ASoC: wm8580: 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>
| -rw-r--r-- | sound/soc/codecs/wm8580.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c index b25672709474..8212b3c8bfdd 100644 --- a/sound/soc/codecs/wm8580.c +++ b/sound/soc/codecs/wm8580.c @@ -430,8 +430,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, /* Always disable the PLL - it is not safe to leave it running * while reprogramming it. */ - reg = snd_soc_read(codec, WM8580_PWRDN2); - snd_soc_write(codec, WM8580_PWRDN2, reg | pwr_mask); + snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, pwr_mask); if (!freq_in || !freq_out) return 0; @@ -449,8 +448,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, snd_soc_write(codec, WM8580_PLLA4 + offset, reg); /* All done, turn it on */ - reg = snd_soc_read(codec, WM8580_PWRDN2); - snd_soc_write(codec, WM8580_PWRDN2, reg & ~pwr_mask); + snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, 0); return 0; } @@ -748,7 +746,6 @@ static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute) static int wm8580_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - u16 reg; switch (level) { case SND_SOC_BIAS_ON: case SND_SOC_BIAS_PREPARE: @@ -757,20 +754,19 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { /* Power up and get individual control of the DACs */ - reg = snd_soc_read(codec, WM8580_PWRDN1); - reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD); - snd_soc_write(codec, WM8580_PWRDN1, reg); + snd_soc_update_bits(codec, WM8580_PWRDN1, + WM8580_PWRDN1_PWDN | + WM8580_PWRDN1_ALLDACPD, 0); /* Make VMID high impedance */ - reg = snd_soc_read(codec, WM8580_ADC_CONTROL1); - reg &= ~0x100; - snd_soc_write(codec, WM8580_ADC_CONTROL1, reg); + snd_soc_update_bits(codec, WM8580_ADC_CONTROL1, + 0x100, 0); } break; case SND_SOC_BIAS_OFF: - reg = snd_soc_read(codec, WM8580_PWRDN1); - snd_soc_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN); + snd_soc_update_bits(codec, WM8580_PWRDN1, + WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN); break; } codec->dapm.bias_level = level; |
