diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-03-11 17:47:33 +0100 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-03-14 02:07:10 +0100 |
| commit | ac04e6ff3e32699920ae75b22e2bec7f7c631434 (patch) | |
| tree | 0b78396622fc9a17f933e2ca3541be4d5f2a4512 /drivers/usb | |
| parent | xHCI: prolong host controller halt time limit (diff) | |
| download | linux-ac04e6ff3e32699920ae75b22e2bec7f7c631434.tar.xz linux-ac04e6ff3e32699920ae75b22e2bec7f7c631434.zip | |
xhci: Remove references to HC_STATE_HALT.
The xHCI driver doesn't ever test hcd->state for HC_STATE_HALT. The USB
core recently stopped using it internally, so there's no point in setting
it in the driver. We still need to set HC_STATE_RUNNING in order to make
it past the USB core's hcd->state check in register_roothub().
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 5 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 5 |
2 files changed, 2 insertions, 8 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 3264d6275bf2..6bca2526d54a 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -819,8 +819,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) if (ret < 0) { /* This is bad; the host is not responding to commands and it's * not allowing itself to be halted. At least interrupts are - * disabled, so we can set HC_STATE_HALT and notify the - * USB core. But if we call usb_hc_died(), it will attempt to + * disabled. If we call usb_hc_died(), it will attempt to * disconnect all device drivers under this host. Those * disconnect() methods will wait for all URBs to be unlinked, * so we must complete them. @@ -865,7 +864,6 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) } } spin_unlock(&xhci->lock); - xhci_to_hcd(xhci)->state = HC_STATE_HALT; xhci_dbg(xhci, "Calling usb_hc_died()\n"); usb_hc_died(xhci_to_hcd(xhci)); xhci_dbg(xhci, "xHCI host controller is dead.\n"); @@ -2113,7 +2111,6 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd) xhci_warn(xhci, "WARNING: Host System Error\n"); xhci_halt(xhci); hw_died: - xhci_to_hcd(xhci)->state = HC_STATE_HALT; spin_unlock(&xhci->lock); return -ESHUTDOWN; } diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8dfa67ff5fac..63b8db5275e9 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -95,7 +95,6 @@ void xhci_quiesce(struct xhci_hcd *xhci) * HC will complete any current and actively pipelined transactions, and * should halt within 16 ms of the run/stop bit being cleared. * Read HC Halted bit in the status register to see when the HC is finished. - * XXX: shouldn't we set HC_STATE_HALT here somewhere? */ int xhci_halt(struct xhci_hcd *xhci) { @@ -134,7 +133,7 @@ int xhci_start(struct xhci_hcd *xhci) } /* - * Reset a halted HC, and set the internal HC state to HC_STATE_HALT. + * Reset a halted HC. * * This resets pipelines, timers, counters, state machines, etc. * Transactions will be terminated immediately, and operational registers @@ -156,8 +155,6 @@ int xhci_reset(struct xhci_hcd *xhci) command = xhci_readl(xhci, &xhci->op_regs->command); command |= CMD_RESET; xhci_writel(xhci, command, &xhci->op_regs->command); - /* XXX: Why does EHCI set this here? Shouldn't other code do this? */ - xhci_to_hcd(xhci)->state = HC_STATE_HALT; ret = handshake(xhci, &xhci->op_regs->command, CMD_RESET, 0, 250 * 1000); |