ASoC: ac97: Push snd_ac97 pointer to the driver level

Now that the ASoC core no longer needs a handle to the AC'97 device that is
associated with a CODEC we can remove it from the snd_soc_codec struct and
push it into the individual driver state structs like we do for other
communication buses. Doing so creates a clean separation between the AC'97
bus support and the ASoC core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 20 insertions, 11 deletions

diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index cd1b266d3af3..6c95d98b0eb1 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -30,6 +30,7 @@
 #include "wm9713.h"
 
 struct wm9713_priv {
+        struct snd_ac97 *ac97;
         u32 pll_in; /* PLL input frequency */
         unsigned int hp_mixer[2];
         struct mutex lock;
@@ -674,12 +675,13 @@ static const struct snd_soc_dapm_route wm9713_audio_map[] = {
 static unsigned int ac97_read(struct snd_soc_codec *codec,
         unsigned int reg)
 {
+        struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
         u16 *cache = codec->reg_cache;
 
         if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
                 reg == AC97_VENDOR_ID1 || reg == AC97_VENDOR_ID2 ||
                 reg == AC97_CD)
-                return soc_ac97_ops->read(codec->ac97, reg);
+                return soc_ac97_ops->read(wm9713->ac97, reg);
         else {
                 reg = reg >> 1;
 
@@ -693,8 +695,10 @@ static unsigned int ac97_read(struct snd_soc_codec *codec,
 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
         unsigned int val)
 {
+        struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
+
         u16 *cache = codec->reg_cache;
-        soc_ac97_ops->write(codec->ac97, reg, val);
+        soc_ac97_ops->write(wm9713->ac97, reg, val);
         reg = reg >> 1;
         if (reg < (ARRAY_SIZE(wm9713_reg)))
                 cache[reg] = val;
@@ -1121,15 +1125,17 @@ static struct snd_soc_dai_driver wm9713_dai[] = {
 
 int wm9713_reset(struct snd_soc_codec *codec, int try_warm)
 {
+        struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
+
         if (try_warm && soc_ac97_ops->warm_reset) {
-                soc_ac97_ops->warm_reset(codec->ac97);
+                soc_ac97_ops->warm_reset(wm9713->ac97);
                 if (ac97_read(codec, 0) == wm9713_reg[0])
                         return 1;
         }
 
-        soc_ac97_ops->reset(codec->ac97);
+        soc_ac97_ops->reset(wm9713->ac97);
         if (soc_ac97_ops->warm_reset)
-                soc_ac97_ops->warm_reset(codec->ac97);
+                soc_ac97_ops->warm_reset(wm9713->ac97);
         if (ac97_read(codec, 0) != wm9713_reg[0]) {
                 dev_err(codec->dev, "Failed to reset: AC97 link error\n");
                 return -EIO;
@@ -1207,7 +1213,7 @@ static int wm9713_soc_resume(struct snd_soc_codec *codec)
                         if (i == AC97_POWERDOWN || i == AC97_EXTENDED_MID ||
                                 i == AC97_EXTENDED_MSTATUS || i > 0x66)
                                 continue;
-                        soc_ac97_ops->write(codec->ac97, i, cache[i>>1]);
+                        soc_ac97_ops->write(wm9713->ac97, i, cache[i>>1]);
                 }
         }
 
@@ -1216,11 +1222,12 @@ static int wm9713_soc_resume(struct snd_soc_codec *codec)
 
 static int wm9713_soc_probe(struct snd_soc_codec *codec)
 {
+        struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
         int ret = 0, reg;
 
-        ret = snd_soc_new_ac97_codec(codec);
-        if (ret < 0)
-                return ret;
+        wm9713->ac97 = snd_soc_new_ac97_codec(codec);
+        if (IS_ERR(wm9713->ac97))
+                return PTR_ERR(wm9713->ac97);
 
         /* do a cold reset for the controller and then try
          * a warm reset followed by an optional cold reset for codec */
@@ -1238,13 +1245,15 @@ static int wm9713_soc_probe(struct snd_soc_codec *codec)
         return 0;
 
 reset_err:
-        snd_soc_free_ac97_codec(codec);
+        snd_soc_free_ac97_codec(wm9713->ac97);
         return ret;
 }
 
 static int wm9713_soc_remove(struct snd_soc_codec *codec)
 {
-        snd_soc_free_ac97_codec(codec);
+        struct wm9713_priv *wm9713 = snd_soc_codec_get_drvdata(codec);
+
+        snd_soc_free_ac97_codec(wm9713->ac97);
         return 0;
 }