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 cd1b266..6c95d98 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;
 }