ASoC: pxa: pxa2xx-i2s: move .suspend/.resume to component

There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.

Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.

Signed-off-by: Kuninori Morimoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: morimoto

sound/soc/pxa/pxa2xx-i2s.c

@@ -261,7 +261,7 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
 }
 
 #ifdef CONFIG_PM
-static int pxa2xx_i2s_suspend(struct snd_soc_dai *dai)
+static int pxa2xx_soc_pcm_suspend(struct snd_soc_component *component)
 {
 	/* store registers */
 	pxa_i2s.sacr0 = SACR0;
@@ -275,7 +275,7 @@ static int pxa2xx_i2s_suspend(struct snd_soc_dai *dai)
 	return 0;
 }
 
-static int pxa2xx_i2s_resume(struct snd_soc_dai *dai)
+static int pxa2xx_soc_pcm_resume(struct snd_soc_component *component)
 {
 	pxa_i2s_wait();
 
@@ -290,8 +290,8 @@ static int pxa2xx_i2s_resume(struct snd_soc_dai *dai)
 }
 
 #else
-#define pxa2xx_i2s_suspend	NULL
-#define pxa2xx_i2s_resume	NULL
+#define pxa2xx_soc_pcm_suspend	NULL
+#define pxa2xx_soc_pcm_resume	NULL
 #endif
 
 static int pxa2xx_i2s_probe(struct snd_soc_dai *dai)
@@ -342,8 +342,6 @@ static const struct snd_soc_dai_ops pxa_i2s_dai_ops = {
 static struct snd_soc_dai_driver pxa_i2s_dai = {
 	.probe = pxa2xx_i2s_probe,
 	.remove = pxa2xx_i2s_remove,
-	.suspend = pxa2xx_i2s_suspend,
-	.resume = pxa2xx_i2s_resume,
 	.playback = {
 		.channels_min = 2,
 		.channels_max = 2,
@@ -370,6 +368,8 @@ static const struct snd_soc_component_driver pxa_i2s_component = {
 	.trigger	= pxa2xx_soc_pcm_trigger,
 	.pointer	= pxa2xx_soc_pcm_pointer,
 	.mmap		= pxa2xx_soc_pcm_mmap,
+	.suspend	= pxa2xx_soc_pcm_suspend,
+	.resume		= pxa2xx_soc_pcm_resume,
 };
 
 static int pxa2xx_i2s_drv_probe(struct platform_device *pdev)