diff options
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 69 |
1 files changed, 2 insertions, 67 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7e00ca095cea..fd7ae16f77be 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -235,68 +235,6 @@ static int ehci_halt (struct ehci_hcd *ehci) STS_HALT, STS_HALT, 16 * 125); } -#if defined(CONFIG_USB_SUSPEND) && defined(CONFIG_PPC_PS3) - -/* - * The EHCI controller of the Cell Super Companion Chip used in the - * PS3 will stop the root hub after all root hub ports are suspended. - * When in this condition handshake will return -ETIMEDOUT. The - * STS_HLT bit will not be set, so inspection of the frame index is - * used here to test for the condition. If the condition is found - * return success to allow the USB suspend to complete. - */ - -static int handshake_for_broken_root_hub(struct ehci_hcd *ehci, - void __iomem *ptr, u32 mask, u32 done, - int usec) -{ - unsigned int old_index; - int error; - - if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) - return -ETIMEDOUT; - - old_index = ehci_read_frame_index(ehci); - - error = handshake(ehci, ptr, mask, done, usec); - - if (error == -ETIMEDOUT && ehci_read_frame_index(ehci) == old_index) - return 0; - - return error; -} - -#else - -static int handshake_for_broken_root_hub(struct ehci_hcd *ehci, - void __iomem *ptr, u32 mask, u32 done, - int usec) -{ - return -ETIMEDOUT; -} - -#endif - -static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr, - u32 mask, u32 done, int usec) -{ - int error; - - error = handshake(ehci, ptr, mask, done, usec); - if (error == -ETIMEDOUT) - error = handshake_for_broken_root_hub(ehci, ptr, mask, done, - usec); - - if (error) { - ehci_halt(ehci); - ehci->rh_state = EHCI_RH_HALTED; - ehci_err(ehci, "force halt; handshake %p %08x %08x -> %d\n", - ptr, mask, done, error); - } - - return error; -} - /* put TDI/ARC silicon into EHCI mode */ static void tdi_reset (struct ehci_hcd *ehci) { @@ -361,17 +299,14 @@ static void ehci_quiesce (struct ehci_hcd *ehci) /* wait for any schedule enables/disables to take effect */ temp = (ehci->command << 10) & (STS_ASS | STS_PSS); - if (handshake_on_error_set_halt(ehci, &ehci->regs->status, - STS_ASS | STS_PSS, temp, 16 * 125)) - return; + handshake(ehci, &ehci->regs->status, STS_ASS | STS_PSS, temp, 16 * 125); /* then disable anything that's still active */ ehci->command &= ~(CMD_ASE | CMD_PSE); ehci_writel(ehci, ehci->command, &ehci->regs->command); /* hardware can take 16 microframes to turn off ... */ - handshake_on_error_set_halt(ehci, &ehci->regs->status, - STS_ASS | STS_PSS, 0, 16 * 125); + handshake(ehci, &ehci->regs->status, STS_ASS | STS_PSS, 0, 16 * 125); } /*-------------------------------------------------------------------------*/ |