static void bcm_hsotgctrl_delayed_wakeup_handler(struct work_struct *work)
{
struct bcm_hsotgctrl_drv_data *bcm_hsotgctrl_handle =
container_of(work, struct bcm_hsotgctrl_drv_data,
wakeup_work.work);
if (NULL == local_hsotgctrl_handle)
return;
if (bcm_hsotgctrl_handle != local_hsotgctrl_handle) {
dev_warn(local_hsotgctrl_handle->dev,
"Invalid HSOTGCTRL wakeup handler");
return;
}
dev_info(bcm_hsotgctrl_handle->dev, "Do HSOTGCTRL wakeup\n");
/* Enable OTG AHB clock */
bcm_hsotgctrl_en_clock(true);
/* Use the PHY-core wakeup sequence */
bcm_hsotgctrl_wakeup_core();
bcm_hsotgctrl_en_clock(false);
}
static ssize_t bcmpmu_otg_xceiv_wake_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_gadget *gadget;
ssize_t result = 0;
unsigned int val;
struct bcmpmu_otg_xceiv_data *xceiv_data = dev_get_drvdata(dev);
int error;
gadget = xceiv_data->otg_xceiver.xceiver.gadget;
result = sscanf(buf, "%02x\n", &val);
if (result != 1) {
result = -EINVAL;
} else if (val == 0) {
dev_warn(xceiv_data->dev, "Illegal value\n");
} else {
dev_info(xceiv_data->dev, "Waking up host\n");
/* Bring core out of suspend */
bcm_hsotgctrl_wakeup_core();
error = usb_gadget_wakeup(gadget);
if (error)
dev_err(xceiv_data->dev,
"Failed to issue wakeup\n");
}
return result < 0 ? result : count;
}
int bcm_hsotgctrl_phy_deinit(void)
{
struct bcm_hsotgctrl_drv_data *bcm_hsotgctrl_handle =
local_hsotgctrl_handle;
if (NULL == local_hsotgctrl_handle)
return -ENODEV;
if (!bcm_hsotgctrl_handle->dev)
return -EIO;
if (bcm_hsotgctrl_handle->irq_enabled) {
/* We are shutting down USB so ensure wake IRQ
* is disabled
*/
disable_irq(bcm_hsotgctrl_handle->hsotgctrl_irq);
bcm_hsotgctrl_handle->irq_enabled = false;
}
if (work_pending(&bcm_hsotgctrl_handle->wakeup_work.work)) {
/* Cancel scheduled work */
cancel_delayed_work(&bcm_hsotgctrl_handle->
wakeup_work);
/* Make sure work queue is flushed */
flush_workqueue(bcm_hsotgctrl_handle->
bcm_hsotgctrl_work_queue);
}
/* Disable wakeup condition */
bcm_hsotgctrl_phy_wakeup_condition(false);
/* Stay disconnected */
bcm_hsotgctrl_wakeup_core();
bcm_hsotgctrl_phy_set_non_driving(true);
/* Disable pad, internal PLL etc. */
bcm_hsotgctrl_set_phy_off(true);
/* Enable software control of PHY-PM */
bcm_hsotgctrl_set_soft_ldo_pwrdn(true);
/* Isolate PHY */
bcm_hsotgctrl_set_phy_iso(true);
/* Power down ALDO */
bcm_hsotgctrl_set_aldo_pdn(false);
/* Clear PHY reference clock request */
bcm_hsotgctrl_set_phy_clk_request(false);
/* Clear Vbus valid state */
bcm_hsotgctrl_phy_set_vbus_stat(false);
/* Disable the OTG core AHB clock */
bcm_hsotgctrl_en_clock(false);
return 0;
}
