[ALSA] Use platform_device

Modules: SA11xx UDA1341 driver

Rewrite the probe/remove with platform_device.
Fix PM support, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 57 insertions, 21 deletions

diff --git a/sound/arm/sa11xx-uda1341.c b/sound/arm/sa11xx-uda1341.c
index 785726e627d0..3c342c1a7c80 100644
--- a/sound/arm/sa11xx-uda1341.c
+++ b/sound/arm/sa11xx-uda1341.c
@@ -21,7 +21,7 @@
  *                              merged HAL layer (patches from Brian)
  */
 
-/* $Id: sa11xx-uda1341.c,v 1.25 2005/11/17 15:10:58 tiwai Exp $ */
+/* $Id: sa11xx-uda1341.c,v 1.26 2005/11/17 17:19:50 tiwai Exp $ */
 
 /***************************************************************************************************
 *
@@ -64,6 +64,8 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
 #include <linux/errno.h>
 #include <linux/ioctl.h>
 #include <linux/delay.h>
@@ -860,12 +862,15 @@ static int __init snd_card_sa11xx_uda1341_pcm(struct sa11xx_uda1341 *sa11xx_uda1
 
 #ifdef CONFIG_PM
 
-static int snd_sa11xx_uda1341_suspend(struct snd_card *card, pm_message_t state)
+static int snd_sa11xx_uda1341_suspend(struct platform_device *devptr,
+                                      pm_message_t state)
 {
-        struct sa11xx_uda1341 *chip = card->pm_private_data;
+        struct snd_card *card = platform_get_drvdata(devptr);
+        struct sa11xx_uda1341 *chip = card->private_data;
 
+        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
         snd_pcm_suspend_all(chip->pcm);
-#ifdef HH_VERSION       
+#ifdef HH_VERSION
         sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_PLAYBACK].dmach);
         sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_CAPTURE].dmach);
 #else
@@ -873,12 +878,14 @@ static int snd_sa11xx_uda1341_suspend(struct snd_card *card, pm_message_t state)
 #endif
         l3_command(chip->uda1341, CMD_SUSPEND, NULL);
         sa11xx_uda1341_audio_shutdown(chip);
+
         return 0;
 }
 
-static int snd_sa11xx_uda1341_resume(struct snd_card *card)
+static int snd_sa11xx_uda1341_resume(struct platform_device *devptr)
 {
-        struct sa11xx_uda1341 *chip = card->pm_private_data;
+        struct snd_card *card = platform_get_drvdata(devptr);
+        struct sa11xx_uda1341 *chip = card->private_data;
 
         sa11xx_uda1341_audio_init(chip);
         l3_command(chip->uda1341, CMD_RESUME, NULL);
@@ -888,6 +895,7 @@ static int snd_sa11xx_uda1341_resume(struct snd_card *card)
 #else
         //FIXME
 #endif
+        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
         return 0;
 }
 #endif /* COMFIG_PM */
@@ -900,27 +908,22 @@ void snd_sa11xx_uda1341_free(struct snd_card *card)
         audio_dma_free(&chip->s[SNDRV_PCM_STREAM_CAPTURE]);
 }
 
-static struct snd_card *sa11xx_uda1341_card;
-
-static int __init sa11xx_uda1341_init(void)
+static int __init sa11xx_uda1341_probe(struct platform_device *devptr)
 {
         int err;
         struct snd_card *card;
         struct sa11xx_uda1341 *chip;
 
-        if (!machine_is_h3xxx())
-                return -ENODEV;
-
         /* register the soundcard */
         card = snd_card_new(-1, id, THIS_MODULE, sizeof(struct sa11xx_uda1341));
         if (card == NULL)
                 return -ENOMEM;
 
-        card->private_free = snd_sa11xx_uda1341_free;
         chip = card->private_data;
         spin_lock_init(&chip->s[0].dma_lock);
         spin_lock_init(&chip->s[1].dma_lock);
 
+        card->private_free = snd_sa11xx_uda1341_free;
         chip->card = card;
         chip->samplerate = AUDIO_RATE_DEFAULT;
 
@@ -932,20 +935,15 @@ static int __init sa11xx_uda1341_init(void)
         if ((err = snd_card_sa11xx_uda1341_pcm(chip, 0)) < 0)
                 goto nodev;
         
-        snd_card_set_generic_pm_callback(card,
-                                         snd_sa11xx_uda1341_suspend, snd_sa11_uda1341_resume,
-                                         chip);
-
         strcpy(card->driver, "UDA1341");
         strcpy(card->shortname, "H3600 UDA1341TS");
         sprintf(card->longname, "Compaq iPAQ H3600 with Philips UDA1341TS");
         
-        if ((err = snd_card_set_generic_dev(card)) < 0)
-                goto nodev;
+        snd_card_set_dev(card, &devptr->dev);
 
         if ((err = snd_card_register(card)) == 0) {
                 printk( KERN_INFO "iPAQ audio support initialized\n" );
-                sa11xx_uda1341_card = card;
+                platform_set_drvdata(devptr, card);
                 return 0;
         }
         
@@ -954,9 +952,47 @@ static int __init sa11xx_uda1341_init(void)
         return err;
 }
 
+static int __devexit sa11xx_uda1341_remove(struct platform_device *devptr)
+{
+        snd_card_free(platform_get_drvdata(devptr));
+        platform_set_drvdata(devptr, NULL);
+        return 0;
+}
+
+#define SA11XX_UDA1341_DRIVER   "sa11xx_uda1341"
+
+static struct platform_driver sa11xx_uda1341_driver = {
+        .probe          = sa11xx_uda1341_probe,
+        .remove         = __devexit_p(sa11xx_uda1341_remove),
+#ifdef CONFIG_PM
+        .suspend        = snd_sa11xx_uda1341_suspend,
+        .resume         = snd_sa11xx_uda1341_resume,
+#endif
+        .driver         = {
+                .name   = SA11XX_UDA1341_DRIVER,
+        },
+};
+
+static int __init sa11xx_uda1341_init(void)
+{
+        int err;
+        struct platform_device *device;
+
+        if (!machine_is_h3xxx())
+                return -ENODEV;
+        if ((err = platform_driver_register(&sa11xx_uda1341_driver)) < 0)
+                return err;
+        device = platform_device_register_simple(SA11XX_UDA1341_DRIVER, -1, NULL, 0);
+        if (IS_ERR(device)) {
+                platform_driver_unregister(&sa11xx_uda1341_driver);
+                return PTR_ERR(device);
+        }
+        return 0;
+}
+
 static void __exit sa11xx_uda1341_exit(void)
 {
-        snd_card_free(sa11xx_uda1341_card);
+        platform_driver_unregister(&sa11xx_uda1341_driver);
 }
 
 module_init(sa11xx_uda1341_init);