[alsa-devel] [PATCH v2 2/3] ASoC: add iPAQ hx4700 machine driver

[Mark Brown]

On Tue, May 17, 2011 at 01:03:24AM +0400, Dmitry Artamonow wrote:
> AK4641 connected via I2S and I2C, jack detection via GPIO.
> 
> Signed-off-by: Philipp Zabel <philipp.zabel at gmail.com>
> Signed-off-by: Dmitry Artamonow <mad_soft at inbox.ru>

Same thing here - pretty good but a bit out of date.

> +	/* Add hx4700 specific widgets */
> +	snd_soc_dapm_new_controls(dapm, ak4641_dapm_widgets,
> +				  ARRAY_SIZE(ak4641_dapm_widgets));
> +
> +	/* Set up hx4700 specific audio path interconnects */
> +	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
> +
> +	snd_soc_dapm_sync(dapm);

Data based init for these too please.

> +static int __init hx4700_init(void)
> +{
> +	int ret;
> +
> +	if (!machine_is_h4700())
> +		return -ENODEV;
> +
> +	ret = gpio_request(GPIO107_HX4700_SPK_nSD, "SPK_POWER");
> +	if (ret)
> +		goto err_request_spk;
> +	ret = gpio_request(GPIO92_HX4700_HP_DRIVER, "EP_POWER");
> +	if (ret)
> +		goto err_request_ep;
> +
> +	gpio_direction_output(GPIO107_HX4700_SPK_nSD, 1);
> +	gpio_direction_output(GPIO92_HX4700_HP_DRIVER, 0);
> +
> +	hx4700_snd_device = platform_device_alloc("soc-audio", -1);
> +	if (!hx4700_snd_device) {

Use a regular platform device to register the machine and call
snd_soc_register_card() to instantiate please.