void
pxa_i2s_init (void)
{
unsigned long flags;
/* Setup the uarts */
local_irq_save(flags);
pxa_gpio_mode(GPIO28_BITCLK_OUT_I2S_MD);
pxa_gpio_mode(GPIO29_SDATA_IN_I2S_MD);
pxa_gpio_mode(GPIO30_SDATA_OUT_I2S_MD);
pxa_gpio_mode(GPIO31_SYNC_I2S_MD);
#if CONFIG_MACH_H4700
if (machine_is_h4700())
pxa_gpio_mode(GPIO_NR_HX4700_I2S_SYSCLK);
else
#endif
pxa_gpio_mode(GPIO32_SYSCLK_I2S_MD);
/* enable the clock to I2S unit */
CKEN |= CKEN8_I2S;
SACR0 = SACR0_RST;
SACR0 = SACR0_ENB | SACR0_BCKD | SACR0_RFTH(8) | SACR0_TFTH(8);
SACR1 = 0;
SADIV = pxa_i2s_sample_rate_divisor(PXA_I2S_44_1KHZ);
SACR0 |= SACR0_ENB;
local_irq_restore(flags);
}
static int hx4700_audio_probe(struct platform_device *pdev)
{
int ret;
if (!machine_is_h4700())
return -ENODEV;
ret = gpio_request_array(hx4700_audio_gpios,
ARRAY_SIZE(hx4700_audio_gpios));
if (ret)
return ret;
snd_soc_card_hx4700.dev = &pdev->dev;
ret = snd_soc_register_card(&snd_soc_card_hx4700);
if (ret)
gpio_free_array(hx4700_audio_gpios,
ARRAY_SIZE(hx4700_audio_gpios));
return ret;
}