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| author |   Mathias Nyman <mathias.nyman@linux.intel.com> | 2014-11-27 18:19:15 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-02 16:14:29 -0800 |
| commit | 4801d4ea559440b7d63babdac1b1b43a13ac7562 (patch) | |
| tree | 7ccc41aa098857bf0973eee257e89789f5f18b71 /drivers/usb/host | |
| parent | xhci: cleanup finish_td function (diff) | |
| download | linux-dev-4801d4ea559440b7d63babdac1b1b43a13ac7562.tar.xz linux-dev-4801d4ea559440b7d63babdac1b1b43a13ac7562.zip | |
xhci: clear extra bits from slot context when setting max exit latency
If we need to change the max exit latency with a Evaluate Context
command, we copy the old output slot context and use it as input
context for the command. This also copies the dev_state bits which
are supposed to be zero in the input slot context.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 033b46c470bd..0ea7e12d4765 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4009,6 +4009,7 @@ static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci, slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx); slot_ctx->dev_info2 &= cpu_to_le32(~((u32) MAX_EXIT)); slot_ctx->dev_info2 |= cpu_to_le32(max_exit_latency); + slot_ctx->dev_state = 0; xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, "Set up evaluate context for LPM MEL change."); |