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| author | Takashi Iwai <tiwai@suse.de> | 2009-04-06 03:47:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-04-06 03:47:20 +0200 |
| commit | b114701c0e8d580a05643c874d87e2501ab729cb (patch) | |
| tree | a4e69cc865b9b76b6737d0d8b8dc81fc40c1e88f /sound/soc/codecs/wm9705.c | |
| parent | Merge branch 'audit.b62' of git://git.kernel.org/pub/scm/linux/kernel/git/vir... (diff) | |
| parent | ASoC: TWL4030: Add actual support for 96KHz playback support (diff) | |
| download | linux-b114701c0e8d580a05643c874d87e2501ab729cb.tar.xz linux-b114701c0e8d580a05643c874d87e2501ab729cb.zip | |
Merge branch 'topic/asoc' into for-linus
Diffstat (limited to 'sound/soc/codecs/wm9705.c')
| -rw-r--r-- | sound/soc/codecs/wm9705.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c index 3265817c5c26..6e23a81dba78 100644 --- a/sound/soc/codecs/wm9705.c +++ b/sound/soc/codecs/wm9705.c @@ -317,6 +317,41 @@ static int wm9705_reset(struct snd_soc_codec *codec) return -EIO; } +#ifdef CONFIG_PM +static int wm9705_soc_suspend(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->card->codec; + + soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff); + + return 0; +} + +static int wm9705_soc_resume(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->card->codec; + int i, ret; + u16 *cache = codec->reg_cache; + + ret = wm9705_reset(codec); + if (ret < 0) { + printk(KERN_ERR "could not reset AC97 codec\n"); + return ret; + } + + for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) { + soc_ac97_ops.write(codec->ac97, i, cache[i>>1]); + } + + return 0; +} +#else +#define wm9705_soc_suspend NULL +#define wm9705_soc_resume NULL +#endif + static int wm9705_soc_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); @@ -407,6 +442,8 @@ static int wm9705_soc_remove(struct platform_device *pdev) struct snd_soc_codec_device soc_codec_dev_wm9705 = { .probe = wm9705_soc_probe, .remove = wm9705_soc_remove, + .suspend = wm9705_soc_suspend, + .resume = wm9705_soc_resume, }; EXPORT_SYMBOL_GPL(soc_codec_dev_wm9705); |