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Commit 62133829 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

ASoC: pxa: Convert e740_wm9705 to use snd_soc_register_card() 



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

Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 7243a4b1

arch/arm/mach-pxa/eseries.c

+6 −0
Original line number Diff line number Diff line
@@ -525,12 +525,18 @@ static struct platform_device e740_t7l66xb_device = { 
	.resource      = eseries_tmio_resources,

};



static struct platform_device e740_audio_device = {

	.name		= "e740-audio",

	.id		= -1,

};



/* ----------------------------------------------------------------------- */



static struct platform_device *e740_devices[] __initdata = {

	&e740_fb_device,

	&e740_t7l66xb_device,

	&e7xx_gpio_vbus,

	&e740_audio_device,

};



static void __init e740_init(void)

sound/soc/pxa/e740_wm9705.c

+32 −43
Original line number Diff line number Diff line
@@ -137,66 +137,55 @@ static struct snd_soc_card e740 = { 
	.num_links = ARRAY_SIZE(e740_dai),

};



static struct platform_device *e740_snd_device;

static struct gpio e740_audio_gpios[] = {

	{ GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" },

	{ GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" },

	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },

};



static int __init e740_init(void)

static int __devinit e740_probe(struct platform_device *pdev)

{

	struct snd_soc_card *card = &e740;

	int ret;



	if (!machine_is_e740())

		return -ENODEV;



	/* Disable audio */

	ret = gpio_request_one(GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp");

	ret = gpio_request_array(e740_audio_gpios,

				 ARRAY_SIZE(e740_audio_gpios));

	if (ret)

		return ret;



	ret = gpio_request_one(GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW,

			       "Output amp");

	if (ret)

		goto free_mic_amp_gpio;



	ret = gpio_request_one(GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH,

			   "Audio power");

	if (ret)

		goto free_op_amp_gpio;

	card->dev = &pdev->dev;



	e740_snd_device = platform_device_alloc("soc-audio", -1);

	if (!e740_snd_device) {

		ret = -ENOMEM;

		goto free_apwr_gpio;

	ret = snd_soc_register_card(card);

	if (ret) {

		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",

			ret);

		gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));

	}



	platform_set_drvdata(e740_snd_device, &e740);

	ret = platform_device_add(e740_snd_device);



	if (!ret)

		return 0;



/* Fail gracefully */

	platform_device_put(e740_snd_device);

free_apwr_gpio:

	gpio_free(GPIO_E740_WM9705_nAVDD2);

free_op_amp_gpio:

	gpio_free(GPIO_E740_AMP_ON);

free_mic_amp_gpio:

	gpio_free(GPIO_E740_MIC_ON);



	return ret;

}



static void __exit e740_exit(void)

static int __devexit e740_remove(struct platform_device *pdev)

{

	platform_device_unregister(e740_snd_device);

	gpio_free(GPIO_E740_WM9705_nAVDD2);

	gpio_free(GPIO_E740_AMP_ON);

	gpio_free(GPIO_E740_MIC_ON);

	struct snd_soc_card *card = platform_get_drvdata(pdev);



	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));

	snd_soc_unregister_card(card);

	return 0;

}



module_init(e740_init);

module_exit(e740_exit);

static struct platform_driver e740_driver = {

	.driver		= {

		.name	= "e740-audio",

		.owner	= THIS_MODULE,

	},

	.probe		= e740_probe,

	.remove		= __devexit_p(e740_remove),

};



module_platform_driver(e740_driver);



/* Module information */

MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");

MODULE_DESCRIPTION("ALSA SoC driver for e740");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("platform:e740-audio");