static int __exit twl4030_usb_remove(struct platform_device *pdev)
{
struct twl4030_usb *twl = platform_get_drvdata(pdev);
int val;
free_irq(twl->irq, twl);
device_remove_file(twl->dev, &dev_attr_vbus);
/* set transceiver mode to power on defaults */
twl4030_usb_set_mode(twl, -1);
/* autogate 60MHz ULPI clock,
* clear dpll clock request for i2c access,
* disable 32KHz
*/
val = twl4030_usb_read(twl, PHY_CLK_CTRL);
if (val >= 0) {
val |= PHY_CLK_CTRL_CLOCKGATING_EN;
val &= ~(PHY_CLK_CTRL_CLK32K_EN | REQ_PHY_DPLL_CLK);
twl4030_usb_write(twl, PHY_CLK_CTRL, (u8)val);
}
/* disable complete OTG block */
twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
twl4030_phy_power(twl, 0);
regulator_put(twl->usb1v5);
regulator_put(twl->usb1v8);
regulator_put(twl->usb3v1);
kfree(twl);
return 0;
}
static void __twl4030_phy_power_on(struct twl4030_usb *twl)
{
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
}
static void twl4030_phy_resume(struct twl4030_usb *twl)
{
if (!twl->asleep)
return;
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
twl->asleep = 0;
}
static int twl4030_phy_power_on(struct phy *phy)
{
struct twl4030_usb *twl = phy_get_drvdata(phy);
dev_dbg(twl->dev, "%s\n", __func__);
pm_runtime_get_sync(twl->dev);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
schedule_delayed_work(&twl->id_workaround_work, 0);
return 0;
}
static int __init twl4030_usb_init(void)
{
struct twl4030_usb *twl;
int status;
if (the_transceiver)
return 0;
twl = kzalloc(sizeof *twl, GFP_KERNEL);
if (!twl)
return 0;
the_transceiver = twl;
twl->irq = TWL4030_PWRIRQ_USB_PRES;
twl->otg.set_host = twl4030_set_host;
twl->otg.set_peripheral = twl4030_set_peripheral;
twl->otg.set_suspend = twl4030_set_suspend;
usb_irq_disable();
status = request_irq(twl->irq, twl4030_usb_irq, 0, "twl4030_usb", twl);
if (status < 0) {
printk(KERN_DEBUG "can't get IRQ %d, err %d\n",
twl->irq, status);
kfree(twl);
return -ENODEV;
}
#if defined(CONFIG_TWL4030_USB_HS_ULPI)
hs_usb_init(twl);
#endif
twl4030_usb_ldo_init(twl);
twl4030_phy_power(twl, 1);
twl4030_i2c_access(1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(0);
twl->asleep = 0;
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_phy_suspend(1);
otg_set_transceiver(&twl->otg);
printk(KERN_INFO "Initialized TWL4030 USB module\n");
return 0;
}
static void twl4030_phy_resume(struct twl4030_usb *twl)
{
if (!twl->asleep)
return;
/* Check the link status before enabling */
if (twl4030_usb_linkstat(twl) == USB_EVENT_NONE)
return;
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
twl->asleep = 0;
}
static void twl4030_phy_resume(void)
{
struct twl4030_usb *twl = the_transceiver;
if (!twl->asleep)
return;
/* enable falling edge interrupt to detect cable detach */
usb_irq_enable(0, 1);
twl4030_phy_power(twl, 1);
twl4030_i2c_access(1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(0);
twl->asleep = 0;
return;
}
static int __exit twl4030_usb_remove(struct platform_device *pdev)
{
struct twl4030_usb *twl = platform_get_drvdata(pdev);
int val;
free_irq(twl->irq, twl);
device_remove_file(twl->dev, &dev_attr_vbus);
/* set transceiver mode to power on defaults */
twl4030_usb_set_mode(twl, -1);
/* autogate 60MHz ULPI clock,
* clear dpll clock request for i2c access,
* disable 32KHz
*/
val = twl4030_usb_read(twl, PHY_CLK_CTRL);
if (val >= 0) {
val |= PHY_CLK_CTRL_CLOCKGATING_EN;
val &= ~(PHY_CLK_CTRL_CLK32K_EN | REQ_PHY_DPLL_CLK);
twl4030_usb_write(twl, PHY_CLK_CTRL, (u8)val);
}
/* disable complete OTG block */
twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
twl4030_phy_power(twl, 0);
regulator_put(twl->usb1v5);
regulator_put(twl->usb1v8);
#if 0 /* LGE_CHANGE [HEAVEN: [email protected]] on 2009-10-14, for <25.12 USB interrupt fix> */
regulator_put(twl->usb3v1);
#endif
kfree(twl);
#if 1 /* mbk_wake mbk_temp */
// LGE_CHANGE wake lock for usb connection
wake_lock_destroy(&the_wlock.wake_lock);
// LGE_CHANGE wake lock for usb connection
#endif
return 0;
}
static int twl4030_phy_power_on(struct phy *phy)
{
struct twl4030_usb *twl = phy_get_drvdata(phy);
dev_dbg(twl->dev, "%s\n", __func__);
pm_runtime_get_sync(twl->dev);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
/*
* XXX When VBUS gets driven after musb goes to A mode,
* ID_PRES related interrupts no longer arrive, why?
* Register itself is updated fine though, so we must poll.
*/
if (twl->linkstat == OMAP_MUSB_ID_GROUND) {
cancel_delayed_work(&twl->id_workaround_work);
schedule_delayed_work(&twl->id_workaround_work, HZ);
}
return 0;
}
static int twl4030_usb_remove(struct platform_device *pdev)
{
struct twl4030_usb *twl = platform_get_drvdata(pdev);
int val;
usb_remove_phy(&twl->phy);
pm_runtime_get_sync(twl->dev);
cancel_delayed_work(&twl->id_workaround_work);
device_remove_file(twl->dev, &dev_attr_vbus);
/* set transceiver mode to power on defaults */
twl4030_usb_set_mode(twl, -1);
/* idle ulpi before powering off */
if (cable_present(twl->linkstat))
pm_runtime_put_noidle(twl->dev);
pm_runtime_mark_last_busy(twl->dev);
pm_runtime_put_sync_suspend(twl->dev);
pm_runtime_disable(twl->dev);
/* autogate 60MHz ULPI clock,
* clear dpll clock request for i2c access,
* disable 32KHz
*/
val = twl4030_usb_read(twl, PHY_CLK_CTRL);
if (val >= 0) {
val |= PHY_CLK_CTRL_CLOCKGATING_EN;
val &= ~(PHY_CLK_CTRL_CLK32K_EN | REQ_PHY_DPLL_CLK);
twl4030_usb_write(twl, PHY_CLK_CTRL, (u8)val);
}
/* disable complete OTG block */
twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
return 0;
}
static void twl4030_phy_resume(struct twl4030_usb *twl)
{
int status; // LGE CHANGE jjun.lee, Current Optimization by Prakash TI
if (!twl->asleep) {
return;
}
// LGE CHANGE jjun.lee, Current Optimization by Prakash TI
/* To check the LINK status before resume..
* check to avoid enabling a LDO's
* */
status = twl4030_usb_linkstat(twl);
if (status == USB_EVENT_NONE)
return;
// LGE CHANGE jjun.lee, Current Optimization by Prakash TI
twl4030_phy_power(twl, 1);
twl4030_i2c_access(twl, 1);
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
twl->asleep = 0;
}