static int __init smartq_usb_host_init(void)
{
int ret;
ret = gpio_request(S3C64XX_GPL(0), "USB power control");
if (ret < 0) {
pr_err("%s: failed to get GPL0\n", __func__);
return ret;
}
ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
if (ret < 0) {
pr_err("%s: failed to get GPL1\n", __func__);
goto err;
}
if (!machine_is_smartq5()) {
/* This isn't present on a SmartQ 5 board */
ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
if (ret < 0) {
pr_err("%s: failed to get GPL10\n", __func__);
goto err2;
}
}
/* turn power off */
gpio_direction_output(S3C64XX_GPL(0), 0);
gpio_direction_output(S3C64XX_GPL(1), 0);
if (!machine_is_smartq5())
gpio_direction_input(S3C64XX_GPL(10));
s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;
return 0;
err2:
gpio_free(S3C64XX_GPL(1));
err:
gpio_free(S3C64XX_GPL(0));
return ret;
}
static int __init smartq_init(void)
{
int ret;
if (!machine_is_smartq7() && !machine_is_smartq5()) {
pr_info("Only SmartQ is supported by this ASoC driver\n");
return -ENODEV;
}
smartq_snd_device = platform_device_alloc("soc-audio", -1);
if (!smartq_snd_device)
return -ENOMEM;
platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
ret = platform_device_add(smartq_snd_device);
if (ret) {
platform_device_put(smartq_snd_device);
return ret;
}
/* Initialise GPIOs used by amplifiers */
ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
if (ret) {
dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
goto err_unregister_device;
}
/* Disable amplifiers */
ret = gpio_direction_output(S3C64XX_GPK(12), 1);
if (ret) {
dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
goto err_free_gpio_amp_shut;
}
return 0;
err_free_gpio_amp_shut:
gpio_free(S3C64XX_GPK(12));
err_unregister_device:
platform_device_unregister(smartq_snd_device);
return ret;
}
static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
{
int ret;
/* This isn't present on a SmartQ 5 board */
if (machine_is_smartq5())
return;
if (on) {
ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
smartq_usb_host_ocirq, IRQF_DISABLED |
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"USB host overcurrent", info);
if (ret != 0)
pr_err("failed to request usb oc irq: %d\n", ret);
} else {
free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
}
}
