int exynos_xhci_bus_resume(struct usb_hcd *hcd)
{
/* When suspend is failed, re-enable clocks & PHY */
pm_runtime_resume(hcd->self.controller);
return xhci_bus_resume(hcd);
}
static int xhci_dwc_bus_resume(struct usb_hcd *hcd)
{
int ret;
/* before resume bus, delay 1ms to waiting core stable */
mdelay(1);
ret = xhci_bus_resume(hcd);
return ret;
}
int comcerto_xhci_bus_resume(struct usb_hcd *hcd)
{
int val;
int error_status = 0;
if (!usb3_suspended) {
pr_err("comcerto_xhci_bus_resume: USB 3.0 Already in Resume state \n");
return error_status;
}
/* Enable the Clock */
if (clk_enable(usb3_clk)){
pr_err("comcerto_start_xhc:Unable to enable the usb1 clock \n");
}
/* Bring usb3 PHY out of reset */
c2000_block_reset(COMPONENT_USB1_PHY, 0);
for (val = 0 ; val < 50 ; val++)
udelay(1000);
/* Bring usb3 UTMI out of reset */
c2000_block_reset(COMPONENT_UTMI_USB1, 0);
for (val = 0 ; val < 50 ; val++)
udelay(1000);
error_status = xhci_bus_resume(hcd);
if (error_status) {
/* xhci_bus_resume is not successfull keep USB3 in suspend mode */
/* Put USB3 PHY, UTMI and Controller in Reset */
/* APPLYING THE RESET TO USB3 UTMI */
c2000_block_reset(COMPONENT_UTMI_USB1, 1);
/* APPLYING THE RESET TO USB3 PHY */
c2000_block_reset(COMPONENT_USB1_PHY, 1);
/* Disable the Clock */
clk_disable(usb3_clk);
return error_status;
}
usb3_suspended = 0;
return error_status;
}
