ASoC: Intel: Use devm_snd_soc_register_card

Simplify byt-rt5640.c and haswell.c machine drivers by using
devm_snd_soc_register_card(). Remove also needless dev_set_drvdata()
from byt_rt5640_probe() since snd_soc_register_card() does it too.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/intel/byt-rt5640.c

@@ -152,25 +152,13 @@ static const struct dev_pm_ops byt_rt5640_pm_ops = {
 static int byt_rt5640_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &byt_rt5640_card;
-	struct device *dev = &pdev->dev;
 
 	card->dev = &pdev->dev;
-	dev_set_drvdata(dev, card);
-	return snd_soc_register_card(card);
-}
-
-static int byt_rt5640_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-
-	snd_soc_unregister_card(card);
-
-	return 0;
+	return devm_snd_soc_register_card(&pdev->dev, card);
 }
 
 static struct platform_driver byt_rt5640_audio = {
 	.probe = byt_rt5640_probe,
-	.remove = byt_rt5640_remove,
 	.driver = {
 		.name = "byt-rt5640",
 		.owner = THIS_MODULE,

sound/soc/intel/haswell.c

@@ -208,18 +208,11 @@ static int haswell_audio_probe(struct platform_device *pdev)
 {
 	haswell_rt5640.dev = &pdev->dev;
 
-	return snd_soc_register_card(&haswell_rt5640);
-}
-
-static int haswell_audio_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_card(&haswell_rt5640);
-	return 0;
+	return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
 }
 
 static struct platform_driver haswell_audio = {
 	.probe = haswell_audio_probe,
-	.remove = haswell_audio_remove,
 	.driver = {
 		.name = "haswell-audio",
 		.owner = THIS_MODULE,