ASoC: pxa: Convert e750_wm9705 to use snd_soc_register_card()

Use snd_soc_register_card() instead of creating a "soc-audio" platform device.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 31 insertions, 35 deletions

diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
index 55c53d13bea6..27f90cc44234 100644
--- a/sound/soc/pxa/e750_wm9705.c
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -120,58 +120,54 @@ static struct snd_soc_card e750 = {
         .num_links = ARRAY_SIZE(e750_dai),
 };
 
-static struct platform_device *e750_snd_device;
+static struct gpio e750_audio_gpios[] = {
+        { GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
+        { GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
+};
 
-static int __init e750_init(void)
+static int __devinit e750_probe(struct platform_device *pdev)
 {
+        struct snd_soc_card *card = &e750;
         int ret;
 
-        if (!machine_is_e750())
-                return -ENODEV;
-
-        ret = gpio_request_one(GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH,
-                               "Headphone amp");
+        ret = gpio_request_array(e750_audio_gpios,
+                                 ARRAY_SIZE(e750_audio_gpios));
         if (ret)
                 return ret;
 
-        ret = gpio_request_one(GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH,
-                               "Speaker amp");
-        if (ret)
-                goto free_hp_amp_gpio;
+        card->dev = &pdev->dev;
 
-        e750_snd_device = platform_device_alloc("soc-audio", -1);
-        if (!e750_snd_device) {
-                ret = -ENOMEM;
-                goto free_spk_amp_gpio;
+        ret = snd_soc_register_card(card);
+        if (ret) {
+                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                        ret);
+                gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
         }
-
-        platform_set_drvdata(e750_snd_device, &e750);
-        ret = platform_device_add(e750_snd_device);
-
-        if (!ret)
-                return 0;
-
-/* Fail gracefully */
-        platform_device_put(e750_snd_device);
-free_spk_amp_gpio:
-        gpio_free(GPIO_E750_SPK_AMP_OFF);
-free_hp_amp_gpio:
-        gpio_free(GPIO_E750_HP_AMP_OFF);
-
         return ret;
 }
 
-static void __exit e750_exit(void)
+static int __devexit e750_remove(struct platform_device *pdev)
 {
-        platform_device_unregister(e750_snd_device);
-        gpio_free(GPIO_E750_SPK_AMP_OFF);
-        gpio_free(GPIO_E750_HP_AMP_OFF);
+        struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+        gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
+        snd_soc_unregister_card(card);
+        return 0;
 }
 
-module_init(e750_init);
-module_exit(e750_exit);
+static struct platform_driver e750_driver = {
+        .driver         = {
+                .name   = "e750-audio",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = e750_probe,
+        .remove         = __devexit_p(e750_remove),
+};
+
+module_platform_driver(e750_driver);
 
 /* Module information */
 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
 MODULE_DESCRIPTION("ALSA SoC driver for e750");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:e750-audio");