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>
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index dfbeb2d..a7f09f3 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -210,7 +210,7 @@
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
unsigned int rates = 0;
unsigned int rate_min = -1;
unsigned int rate_max = 0;
@@ -269,7 +269,7 @@
unsigned int format)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
/* set DAI format */
@@ -411,7 +411,7 @@
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 cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int ret;
unsigned int i;
unsigned int rate;
@@ -490,7 +490,7 @@
static int cs4270_dai_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int reg6;
reg6 = snd_soc_read(codec, CS4270_MUTE);
@@ -523,7 +523,7 @@
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int left = !ucontrol->value.integer.value[0];
int right = !ucontrol->value.integer.value[1];
@@ -599,7 +599,7 @@
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = cs4270_codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int i, ret;
/* Connect the codec to the socdev. snd_soc_new_pcms() needs this. */
@@ -656,7 +656,7 @@
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = cs4270_codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
snd_soc_free_pcms(socdev);
regulator_bulk_disable(ARRAY_SIZE(cs4270->supplies), cs4270->supplies);
@@ -729,7 +729,7 @@
codec->owner = THIS_MODULE;
codec->dai = &cs4270_dai;
codec->num_dai = 1;
- codec->private_data = cs4270;
+ snd_soc_codec_set_drvdata(codec, cs4270);
codec->control_data = i2c_client;
codec->read = cs4270_read_reg_cache;
codec->write = cs4270_i2c_write;
@@ -842,7 +842,7 @@
static int cs4270_soc_suspend(struct platform_device *pdev, pm_message_t mesg)
{
struct snd_soc_codec *codec = cs4270_codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
int reg, ret;
reg = snd_soc_read(codec, CS4270_PWRCTL) | CS4270_PWRCTL_PDN_ALL;
@@ -862,7 +862,7 @@
static int cs4270_soc_resume(struct platform_device *pdev)
{
struct snd_soc_codec *codec = cs4270_codec;
- struct cs4270_private *cs4270 = codec->private_data;
+ struct cs4270_private *cs4270 = snd_soc_codec_get_drvdata(codec);
struct i2c_client *i2c_client = codec->control_data;
int reg;
