int __init cbus_bus_init(void)
{
struct cbus_host *chost;
int ret;
chost = kmalloc(sizeof (*chost), GFP_KERNEL);
if (chost == NULL)
return -ENOMEM;
memset(chost, 0, sizeof (*chost));
spin_lock_init(&chost->lock);
/* REVISIT: Pass these from board-*.c files in platform_data */
if (machine_is_nokia770()) {
chost->clk_gpio = OMAP_MPUIO(11);
chost->dat_gpio = OMAP_MPUIO(10);
chost->sel_gpio = OMAP_MPUIO(9);
} else if (machine_is_nokia_n800() || machine_is_nokia_n810() ||
machine_is_nokia_n810_wimax()) {
chost->clk_gpio = 66;
chost->dat_gpio = 65;
chost->sel_gpio = 64;
} else {
printk(KERN_ERR "cbus: Unsupported board\n");
ret = -ENODEV;
goto exit1;
}
#ifdef CONFIG_ARCH_OMAP1
if (!OMAP_GPIO_IS_MPUIO(chost->clk_gpio) ||
!OMAP_GPIO_IS_MPUIO(chost->dat_gpio) ||
!OMAP_GPIO_IS_MPUIO(chost->sel_gpio)) {
printk(KERN_ERR "cbus: Only MPUIO pins supported\n");
ret = -ENODEV;
goto exit1;
}
#endif
if ((ret = gpio_request(chost->clk_gpio, "CBUS clk")) < 0)
goto exit1;
if ((ret = gpio_request(chost->dat_gpio, "CBUS data")) < 0)
goto exit2;
if ((ret = gpio_request(chost->sel_gpio, "CBUS sel")) < 0)
goto exit3;
gpio_direction_output(chost->clk_gpio, 0);
gpio_direction_input(chost->dat_gpio);
gpio_direction_output(chost->sel_gpio, 1);
gpio_set_value(chost->clk_gpio, 1);
gpio_set_value(chost->clk_gpio, 0);
cbus_host = chost;
return 0;
exit3:
gpio_free(chost->dat_gpio);
exit2:
gpio_free(chost->clk_gpio);
exit1:
kfree(chost);
return ret;
}
static int __init n810_soc_init(void)
{
int err;
struct device *dev;
if (!(machine_is_nokia_n810() || machine_is_nokia_n810_wimax()))
return -ENODEV;
n810_snd_device = platform_device_alloc("soc-audio", -1);
if (!n810_snd_device)
return -ENOMEM;
platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
n810_snd_devdata.dev = &n810_snd_device->dev;
*(unsigned int *)n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
err = platform_device_add(n810_snd_device);
if (err)
goto err1;
dev = &n810_snd_device->dev;
sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
if (IS_ERR(sys_clkout2_src)) {
dev_err(dev, "Could not get sys_clkout2_src clock\n");
err = PTR_ERR(sys_clkout2_src);
goto err2;
}
sys_clkout2 = clk_get(dev, "sys_clkout2");
if (IS_ERR(sys_clkout2)) {
dev_err(dev, "Could not get sys_clkout2\n");
err = PTR_ERR(sys_clkout2);
goto err3;
}
/*
* Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
* 96 MHz as its parent in order to get 12 MHz
*/
func96m_clk = clk_get(dev, "func_96m_ck");
if (IS_ERR(func96m_clk)) {
dev_err(dev, "Could not get func 96M clock\n");
err = PTR_ERR(func96m_clk);
goto err4;
}
clk_set_parent(sys_clkout2_src, func96m_clk);
clk_set_rate(sys_clkout2, 12000000);
if (gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0)
BUG();
if (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0)
BUG();
gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
return 0;
err4:
clk_put(sys_clkout2);
err3:
clk_put(sys_clkout2_src);
err2:
platform_device_del(n810_snd_device);
err1:
platform_device_put(n810_snd_device);
return err;
}
static int __init n810_soc_init(void)
{
int err;
struct device *dev;
if (!(machine_is_nokia_n810() || machine_is_nokia_n810_wimax()))
return -ENODEV;
i2c_register_board_info(1, i2c_device, ARRAY_SIZE(i2c_device));
n810_snd_device = platform_device_alloc("soc-audio", -1);
if (!n810_snd_device)
return -ENOMEM;
platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
n810_snd_devdata.dev = &n810_snd_device->dev;
*(unsigned int *)n810_dai.cpu_dai->private_data = 1;
err = platform_device_add(n810_snd_device);
if (err)
goto err1;
dev = &n810_snd_device->dev;
sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
if (IS_ERR(sys_clkout2_src)) {
dev_err(dev, "Could not get sys_clkout2_src clock\n");
err = PTR_ERR(sys_clkout2_src);
goto err2;
}
sys_clkout2 = clk_get(dev, "sys_clkout2");
if (IS_ERR(sys_clkout2)) {
dev_err(dev, "Could not get sys_clkout2\n");
err = PTR_ERR(sys_clkout2);
goto err3;
}
func96m_clk = clk_get(dev, "func_96m_ck");
if (IS_ERR(func96m_clk)) {
dev_err(dev, "Could not get func 96M clock\n");
err = PTR_ERR(func96m_clk);
goto err4;
}
clk_set_parent(sys_clkout2_src, func96m_clk);
clk_set_rate(sys_clkout2, 12000000);
BUG_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
(gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0));
gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
return 0;
err4:
clk_put(sys_clkout2);
err3:
clk_put(sys_clkout2_src);
err2:
platform_device_del(n810_snd_device);
err1:
platform_device_put(n810_snd_device);
return err;
}
