static int omap_ohci_bus_suspend(struct usb_hcd *hcd)
{
struct ohci_omap_clock_defs *ohci_clocks;
int ret = 0;
ohci_clocks = (struct ohci_omap_clock_defs *)
(((char *)hcd_to_ohci(hcd)) + sizeof(struct ohci_hcd));
if (!ohci_clocks->suspended) {
ret = ohci_bus_suspend(hcd);
if (ret)
return ret;
mdelay(8); /* MSTANDBY assertion delayed by ~8ms */
ohci_context_save();
clk_disable(ohci_clocks->usbhost_ick_clk);
clk_disable(ohci_clocks->usbhost1_48m_fck_clk);
clk_disable(ohci_clocks->usbhost2_120m_fck_clk);
clk_disable(ohci_clocks->usbtll_ick_clk);
clk_disable(ohci_clocks->usbtll_fck_clk);
ohci_clocks->suspended = 1;
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
}
return ret;
}
static int omap_ohci_bus_suspend(struct usb_hcd *hcd)
{
struct ohci_omap_clock_defs *ohci_clocks;
int ret = 0;
u32 uhh_sysconfig;
ohci_clocks = (struct ohci_omap_clock_defs *)
(((char *)hcd_to_ohci(hcd)) + sizeof(struct ohci_hcd));
if (!ohci_clocks->suspended) {
ret = ohci_bus_suspend(hcd);
if (ret)
return ret;
mdelay(8); /* MSTANDBY assertion delayed by ~8ms */
/* Need to set ForceStandby,ForceIdle here
* else the domain may not be able to transition
* back during clk_enable if there was a pending event.
*/
uhh_sysconfig = omap_readl(OMAP_UHH_SYSCONFIG);
uhh_sysconfig &= ~(3 << OMAP_UHH_SYSCONFIG_MIDLEMODE_SHIFT);
uhh_sysconfig &= ~(3 << OMAP_UHH_SYSCONFIG_SIDLEMODE_SHIFT);
omap_writel(uhh_sysconfig, OMAP_UHH_SYSCONFIG);
ohci_context_save();
clk_disable(ohci_clocks->usbhost_ick_clk);
clk_disable(ohci_clocks->usbhost2_120m_fck_clk);
clk_disable(ohci_clocks->usbhost1_48m_fck_clk);
clk_disable(ohci_clocks->usbtll_ick_clk);
clk_disable(ohci_clocks->usbtll_fck_clk);
ohci_clocks->suspended = 1;
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
}
return ret;
}