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ASoC: wm9712: Use core AC'97 reset helper

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Use the new snd_ac97_reset() helper and the reset functionality provided by
snd_soc_new_ac97_codec() to perform the device reset rather than
open-coding it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2015-07-21 21:53:05 +02:00 committed by Mark Brown
parent 6e0b73a0a1
commit a575be4cbb
1 changed files with 8 additions and 37 deletions
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45
sound/soc/codecs/wm9712.c
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@ -23,6 +23,9 @@
#include <sound/tlv.h> #include <sound/tlv.h>
#include "wm9712.h" #include "wm9712.h"
#define WM9712_VENDOR_ID 0x574d4c12
#define WM9712_VENDOR_ID_MASK 0xffffffff
struct wm9712_priv { struct wm9712_priv {
struct snd_ac97 *ac97; struct snd_ac97 *ac97;
unsigned int hp_mixer[2]; unsigned int hp_mixer[2];
@ -613,35 +616,14 @@ static int wm9712_set_bias_level(struct snd_soc_codec *codec,
return 0; return 0;
} }
static int wm9712_reset(struct snd_soc_codec *codec, int try_warm)
{
struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
if (try_warm && soc_ac97_ops->warm_reset) {
soc_ac97_ops->warm_reset(wm9712->ac97);
if (ac97_read(codec, 0) == wm9712_reg[0])
return 1;
}
soc_ac97_ops->reset(wm9712->ac97);
if (soc_ac97_ops->warm_reset)
soc_ac97_ops->warm_reset(wm9712->ac97);
if (ac97_read(codec, 0) != wm9712_reg[0])
goto err;
return 0;
err:
dev_err(codec->dev, "Failed to reset: AC97 link error\n");
return -EIO;
}
static int wm9712_soc_resume(struct snd_soc_codec *codec) static int wm9712_soc_resume(struct snd_soc_codec *codec)
{ {
struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
int i, ret; int i, ret;
u16 *cache = codec->reg_cache; u16 *cache = codec->reg_cache;
ret = wm9712_reset(codec, 1); ret = snd_ac97_reset(wm9712->ac97, true, WM9712_VENDOR_ID,
WM9712_VENDOR_ID_MASK);
if (ret < 0) if (ret < 0)
return ret; return ret;
@ -663,31 +645,20 @@ static int wm9712_soc_resume(struct snd_soc_codec *codec)
static int wm9712_soc_probe(struct snd_soc_codec *codec) static int wm9712_soc_probe(struct snd_soc_codec *codec)
{ {
struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec); struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
int ret = 0; int ret;
wm9712->ac97 = snd_soc_alloc_ac97_codec(codec); wm9712->ac97 = snd_soc_new_ac97_codec(codec, WM9712_VENDOR_ID,
WM9712_VENDOR_ID_MASK);
if (IS_ERR(wm9712->ac97)) { if (IS_ERR(wm9712->ac97)) {
ret = PTR_ERR(wm9712->ac97); ret = PTR_ERR(wm9712->ac97);
dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret); dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
return ret; return ret;
} }
ret = wm9712_reset(codec, 0);
if (ret < 0)
goto err_put_device;
ret = device_add(&wm9712->ac97->dev);
if (ret)
goto err_put_device;
/* set alc mux to none */ /* set alc mux to none */
ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000); ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
return 0; return 0;
err_put_device:
put_device(&wm9712->ac97->dev);
return ret;
} }
static int wm9712_soc_remove(struct snd_soc_codec *codec) static int wm9712_soc_remove(struct snd_soc_codec *codec)