ASoC: fix message display in CS4270 codec driver

Replace printk calls with dev_xxx calls.  Set the 'dev' field of the codec
and codec_dai structures so that these calls work.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 39 insertions, 27 deletions

diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index 7962874258f..2c79a24186f 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -212,7 +212,7 @@ static int cs4270_set_dai_sysclk(struct snd_soc_dai *codec_dai,
         rates &= ~SNDRV_PCM_RATE_KNOT;
 
         if (!rates) {
-                printk(KERN_ERR "cs4270: could not find a valid sample rate\n");
+                dev_err(codec->dev, "could not find a valid sample rate\n");
                 return -EINVAL;
         }
 
@@ -253,7 +253,7 @@ static int cs4270_set_dai_fmt(struct snd_soc_dai *codec_dai,
                 cs4270->mode = format & SND_SOC_DAIFMT_FORMAT_MASK;
                 break;
         default:
-                printk(KERN_ERR "cs4270: invalid DAI format\n");
+                dev_err(codec->dev, "invalid dai format\n");
                 ret = -EINVAL;
         }
 
@@ -284,7 +284,7 @@ static int cs4270_fill_cache(struct snd_soc_codec *codec)
                 CS4270_FIRSTREG | 0x80, CS4270_NUMREGS, cache);
 
         if (length != CS4270_NUMREGS) {
-                printk(KERN_ERR "cs4270: I2C read failure, addr=0x%x\n",
+                dev_err(codec->dev, "i2c read failure, addr=0x%x\n",
                        i2c_client->addr);
                 return -EIO;
         }
@@ -340,7 +340,7 @@ static int cs4270_i2c_write(struct snd_soc_codec *codec, unsigned int reg,
         if (cache[reg - CS4270_FIRSTREG] != value) {
                 struct i2c_client *client = codec->control_data;
                 if (i2c_smbus_write_byte_data(client, reg, value)) {
-                        printk(KERN_ERR "cs4270: I2C write failed\n");
+                        dev_err(codec->dev, "i2c write failed\n");
                         return -EIO;
                 }
 
@@ -391,7 +391,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
 
         if (i == NUM_MCLK_RATIOS) {
                 /* We did not find a matching ratio */
-                printk(KERN_ERR "cs4270: could not find matching ratio\n");
+                dev_err(codec->dev, "could not find matching ratio\n");
                 return -EINVAL;
         }
 
@@ -401,7 +401,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
                             CS4270_PWRCTL_PDN_ADC | CS4270_PWRCTL_PDN_DAC |
                             CS4270_PWRCTL_PDN);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -413,7 +413,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
 
         ret = snd_soc_write(codec, CS4270_MODE, reg);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -430,13 +430,13 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
                 reg |= CS4270_FORMAT_DAC_LJ | CS4270_FORMAT_ADC_LJ;
                 break;
         default:
-                printk(KERN_ERR "cs4270: unknown format\n");
+                dev_err(codec->dev, "unknown dai format\n");
                 return -EINVAL;
         }
 
         ret = snd_soc_write(codec, CS4270_FORMAT, reg);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -447,7 +447,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
         reg &= ~CS4270_MUTE_AUTO;
         ret = snd_soc_write(codec, CS4270_MUTE, reg);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -460,7 +460,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
         reg &= ~(CS4270_TRANS_SOFT | CS4270_TRANS_ZERO);
         ret = cs4270_i2c_write(codec, CS4270_TRANS, reg);
         if (ret < 0) {
-                printk(KERN_ERR "I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -468,7 +468,7 @@ static int cs4270_hw_params(struct snd_pcm_substream *substream,
 
         ret = snd_soc_write(codec, CS4270_PWRCTL, 0);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: I2C write failed\n");
+                dev_err(codec->dev, "i2c write failed\n");
                 return ret;
         }
 
@@ -570,7 +570,7 @@ static int cs4270_probe(struct platform_device *pdev)
         /* Register PCMs */
         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: failed to create PCMs\n");
+                dev_err(codec->dev, "failed to create pcms\n");
                 return ret;
         }
 
@@ -580,7 +580,7 @@ static int cs4270_probe(struct platform_device *pdev)
 
                 kctrl = snd_soc_cnew(&cs4270_snd_controls[i], codec, NULL);
                 if (!kctrl) {
-                        printk(KERN_ERR "cs4270: error creating control '%s'\n",
+                        dev_err(codec->dev, "error creating control '%s'\n",
                                cs4270_snd_controls[i].name);
                         ret = -ENOMEM;
                         goto error_free_pcms;
@@ -588,7 +588,7 @@ static int cs4270_probe(struct platform_device *pdev)
 
                 ret = snd_ctl_add(codec->card, kctrl);
                 if (ret < 0) {
-                        printk(KERN_ERR "cs4270: error adding control '%s'\n",
+                        dev_err(codec->dev, "error adding control '%s'\n",
                                cs4270_snd_controls[i].name);
                         goto error_free_pcms;
                 }
@@ -597,7 +597,7 @@ static int cs4270_probe(struct platform_device *pdev)
         /* And finally, register the socdev */
         ret = snd_soc_init_card(socdev);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: failed to register card\n");
+                dev_err(codec->dev, "failed to register card\n");
                 goto error_free_pcms;
         }
 
@@ -643,9 +643,9 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
          * comment for cs4270_codec.
          */
         if (cs4270_codec) {
-                printk(KERN_ERR "cs4270: ignoring CS4270 at addr %X\n",
+                dev_err(&i2c_client->dev, "ignoring CS4270 at addr %X\n",
                        i2c_client->addr);
-                printk(KERN_ERR "cs4270: only one CS4270 per board allowed\n");
+                dev_err(&i2c_client->dev, "only one per board allowed\n");
                 /* Should we return something other than ENODEV here? */
                 return -ENODEV;
         }
@@ -654,35 +654,35 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
 
         ret = i2c_smbus_read_byte_data(i2c_client, CS4270_CHIPID);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: failed to read I2C at addr %X\n",
+                dev_err(&i2c_client->dev, "failed to read i2c at addr %X\n",
                        i2c_client->addr);
                 return ret;
         }
         /* The top four bits of the chip ID should be 1100. */
         if ((ret & 0xF0) != 0xC0) {
-                printk(KERN_ERR "cs4270: device at addr %X is not a CS4270\n",
+                dev_err(&i2c_client->dev, "device at addr %X is not a CS4270\n",
                        i2c_client->addr);
                 return -ENODEV;
         }
 
-        printk(KERN_INFO "cs4270: found device at I2C address %X\n",
+        dev_info(&i2c_client->dev, "found device at i2c address %X\n",
                 i2c_client->addr);
-        printk(KERN_INFO "cs4270: hardware revision %X\n", ret & 0xF);
+        dev_info(&i2c_client->dev, "hardware revision %X\n", ret & 0xF);
 
         /* Allocate enough space for the snd_soc_codec structure
            and our private data together. */
         cs4270 = kzalloc(sizeof(struct cs4270_private), GFP_KERNEL);
         if (!cs4270) {
-                printk(KERN_ERR "cs4270: Could not allocate codec structure\n");
+                dev_err(&i2c_client->dev, "could not allocate codec\n");
                 return -ENOMEM;
         }
         codec = &cs4270->codec;
-        cs4270_codec = codec;
 
         mutex_init(&codec->mutex);
         INIT_LIST_HEAD(&codec->dapm_widgets);
         INIT_LIST_HEAD(&codec->dapm_paths);
 
+        codec->dev = &i2c_client->dev;
         codec->name = "CS4270";
         codec->owner = THIS_MODULE;
         codec->dai = &cs4270_dai;
@@ -698,17 +698,25 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
 
         ret = cs4270_fill_cache(codec);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: failed to fill register cache\n");
+                dev_err(&i2c_client->dev, "failed to fill register cache\n");
                 goto error_free_codec;
         }
 
+        /* Initialize the DAI. Normally, we'd prefer to have a kmalloc'd DAI
+         * structure for each CS4270 device, but the machine driver needs to
+         * have a pointer to the DAI structure, so for now it must be a global
+         * variable.
+         */
+        cs4270_dai.dev = &i2c_client->dev;
+
         /* Register the DAI.  If all the other ASoC driver have already
          * registered, then this will call our probe function, so
          * cs4270_codec needs to be ready.
          */
+        cs4270_codec = codec;
         ret = snd_soc_register_dai(&cs4270_dai);
         if (ret < 0) {
-                printk(KERN_ERR "cs4270: failed to register DAIe\n");
+                dev_err(&i2c_client->dev, "failed to register DAIe\n");
                 goto error_free_codec;
         }
 
@@ -718,6 +726,8 @@ static int cs4270_i2c_probe(struct i2c_client *i2c_client,
 
 error_free_codec:
         kfree(cs4270);
+        cs4270_codec = NULL;
+        cs4270_dai.dev = NULL;
 
         return ret;
 }
@@ -733,6 +743,8 @@ static int cs4270_i2c_remove(struct i2c_client *i2c_client)
         struct cs4270_private *cs4270 = i2c_get_clientdata(i2c_client);
 
         kfree(cs4270);
+        cs4270_codec = NULL;
+        cs4270_dai.dev = NULL;
 
         return 0;
 }
@@ -776,7 +788,7 @@ EXPORT_SYMBOL_GPL(soc_codec_device_cs4270);
 
 static int __init cs4270_init(void)
 {
-        printk(KERN_INFO "Cirrus Logic CS4270 ALSA SoC Codec Driver\n");
+        pr_info("Cirrus Logic CS4270 ALSA SoC Codec Driver\n");
 
         return i2c_add_driver(&cs4270_i2c_driver);
 }