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USB: ohci: merge ohci_finish_controller_resume with ohci_resume

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Merge ohci_finish_controller_resume with ohci_resume as suggested by Alan
Stern. Since ohci_finish_controller_resume no longer exists, update the
various OHCI drivers to call ohci_resume() instead. Some drivers used to set
themselves the bit HCD_FLAG_HW_ACCESSIBLE, which is now handled by
ohci_resume().

Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2012-10-08 15:11:29 +02:00 committed by Greg Kroah-Hartman
parent d4ae47dc56
commit cfa49b4b88
11 changed files with 48 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/host/ohci-at91.c
View File

@ -705,7 +705,7 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
if (!clocked)
at91_start_clock();
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}
#else

2
drivers/usb/host/ohci-ep93xx.c
View File

@ -194,7 +194,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
ep93xx_start_hc(&pdev->dev);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}
#endif

5
drivers/usb/host/ohci-exynos.c
View File

@ -252,10 +252,7 @@ static int exynos_ohci_resume(struct device *dev)
if (pdata && pdata->phy_init)
pdata->phy_init(pdev, S5P_USB_PHY_HOST);
/* Mark hardware accessible again as we are out of D3 state by now */
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}

41
drivers/usb/host/ohci-hcd.c
View File

@ -1035,13 +1035,50 @@ static int __maybe_unused ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
static int __maybe_unused ohci_resume(struct usb_hcd *hcd, bool hibernated)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int port;
bool need_reinit = false;
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
/* Make sure resume from hibernation re-enumerates everything */
if (hibernated)
ohci_usb_reset(hcd_to_ohci(hcd));
ohci_usb_reset(ohci);
/* See if the controller is already running or has been reset */
ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
need_reinit = true;
} else {
switch (ohci->hc_control & OHCI_CTRL_HCFS) {
case OHCI_USB_OPER:
case OHCI_USB_RESET:
need_reinit = true;
}
}
/* If needed, reinitialize and suspend the root hub */
if (need_reinit) {
spin_lock_irq(&ohci->lock);
ohci_rh_resume(ohci);
ohci_rh_suspend(ohci, 0);
spin_unlock_irq(&ohci->lock);
}
/* Normally just turn on port power and enable interrupts */
else {
ohci_dbg(ohci, "powerup ports\n");
for (port = 0; port < ohci->num_ports; port++)
ohci_writel(ohci, RH_PS_PPS,
&ohci->regs->roothub.portstatus[port]);
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
ohci_readl(ohci, &ohci->regs->intrenable);
msleep(20);
}
usb_hcd_resume_root_hub(hcd);
ohci_finish_controller_resume(hcd);
return 0;
}

42
drivers/usb/host/ohci-hub.c
View File

@ -316,48 +316,6 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
return rc;
}
/* Carry out the final steps of resuming the controller device */
static void __maybe_unused ohci_finish_controller_resume(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int port;
bool need_reinit = false;
/* See if the controller is already running or has been reset */
ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
need_reinit = true;
} else {
switch (ohci->hc_control & OHCI_CTRL_HCFS) {
case OHCI_USB_OPER:
case OHCI_USB_RESET:
need_reinit = true;
}
}
/* If needed, reinitialize and suspend the root hub */
if (need_reinit) {
spin_lock_irq(&ohci->lock);
ohci_rh_resume(ohci);
ohci_rh_suspend(ohci, 0);
spin_unlock_irq(&ohci->lock);
}
/* Normally just turn on port power and enable interrupts */
else {
ohci_dbg(ohci, "powerup ports\n");
for (port = 0; port < ohci->num_ports; port++)
ohci_writel(ohci, RH_PS_PPS,
&ohci->regs->roothub.portstatus[port]);
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrenable);
ohci_readl(ohci, &ohci->regs->intrenable);
msleep(20);
}
usb_hcd_resume_root_hub(hcd);
}
/* Carry out polling-, autostop-, and autoresume-related state changes */
static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed,
int any_connected, int rhsc_status)

2
drivers/usb/host/ohci-omap.c
View File

@ -530,7 +530,7 @@ static int ohci_omap_resume(struct platform_device *dev)
ohci->next_statechange = jiffies;
omap_ohci_clock_power(1);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}

2
drivers/usb/host/ohci-platform.c
View File

@ -203,7 +203,7 @@ static int ohci_platform_resume(struct device *dev)
return err;
}
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}

2
drivers/usb/host/ohci-pxa27x.c
View File

@ -591,7 +591,7 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
/* Select Power Management Mode */
pxa27x_ohci_select_pmm(ohci, inf->port_mode);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}

3
drivers/usb/host/ohci-s3c2410.c
View File

@ -524,8 +524,7 @@ static int ohci_hcd_s3c2410_drv_resume(struct device *dev)
s3c2410_start_hc(pdev, hcd);
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}

2
drivers/usb/host/ohci-spear.c
View File

@ -231,7 +231,7 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
ohci->next_statechange = jiffies;
spear_start_ohci(ohci_p);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}
#endif

2
drivers/usb/host/ohci-tmio.c
View File

@ -352,7 +352,7 @@ static int ohci_hcd_tmio_drv_resume(struct platform_device *dev)
spin_unlock_irqrestore(&tmio->lock, flags);
ohci_finish_controller_resume(hcd);
ohci_resume(hcd, false);
return 0;
}