ASoC: Add indirection for CODEC private data

One of the features of the multi CODEC work is that it embeds a struct
device in the CODEC to provide diagnostics via a sysfs class rather than
via the device tree, at which point it's much better to use the struct
device private data rather than having two places to store it. Provide
an accessor function to allow this change to be made more easily, and
update all the CODEC drivers are updated.

To ensure use of the accessor the private data structure member is
renamed, meaning that if code developed with older an older core that
still uses private_data is merged it will fail to build.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 6 insertions, 6 deletions

diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 942f5dc30801..99ddec7df614 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -277,7 +277,7 @@ static int ssm2602_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_device *socdev = rtd->socdev;
         struct snd_soc_codec *codec = socdev->card->codec;
-        struct ssm2602_priv *ssm2602 = codec->private_data;
+        struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
         struct i2c_client *i2c = codec->control_data;
         u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3;
         int i = get_coeff(ssm2602->sysclk, params_rate(params));
@@ -322,7 +322,7 @@ static int ssm2602_startup(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_device *socdev = rtd->socdev;
         struct snd_soc_codec *codec = socdev->card->codec;
-        struct ssm2602_priv *ssm2602 = codec->private_data;
+        struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
         struct i2c_client *i2c = codec->control_data;
         struct snd_pcm_runtime *master_runtime;
 
@@ -373,7 +373,7 @@ static void ssm2602_shutdown(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_device *socdev = rtd->socdev;
         struct snd_soc_codec *codec = socdev->card->codec;
-        struct ssm2602_priv *ssm2602 = codec->private_data;
+        struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 
         /* deactivate */
         if (!codec->active)
@@ -401,7 +401,7 @@ static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
                 int clk_id, unsigned int freq, int dir)
 {
         struct snd_soc_codec *codec = codec_dai->codec;
-        struct ssm2602_priv *ssm2602 = codec->private_data;
+        struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
         switch (freq) {
         case 11289600:
         case 12000000:
@@ -726,7 +726,7 @@ static int ssm2602_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
-        codec->private_data = ssm2602;
+        snd_soc_codec_set_drvdata(codec, ssm2602);
         socdev->card->codec = codec;
         mutex_init(&codec->mutex);
         INIT_LIST_HEAD(&codec->dapm_widgets);
@@ -759,7 +759,7 @@ static int ssm2602_remove(struct platform_device *pdev)
         i2c_unregister_device(codec->control_data);
         i2c_del_driver(&ssm2602_i2c_driver);
 #endif
-        kfree(codec->private_data);
+        kfree(snd_soc_codec_get_drvdata(codec));
         kfree(codec);
 
         return 0;