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| author | Alan Stern <stern@rowland.harvard.edu> | 2012-04-23 13:54:36 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-23 12:05:44 -0700 |
| commit | 3d9545cc375d117554a9b35dfddadf9189c62775 (patch) | |
| tree | b01707d2e0901665f20bae0f0c5a0930af69651a /drivers/usb/host/ehci-xilinx-of.c | |
| parent | 09091a4d5f2dd378dcf71de50b48cdacc58a8ac0 (diff) | |
| download | blackbird-op-linux-3d9545cc375d117554a9b35dfddadf9189c62775.tar.gz blackbird-op-linux-3d9545cc375d117554a9b35dfddadf9189c62775.zip | |
EHCI: maintain the ehci->command value properly
The ehci-hcd driver is a little haphazard about keeping track of the
state of the USBCMD register. The ehci->command field is supposed to
hold the register's value (apart from a few special bits) at all
times, but it isn't maintained properly.
This patch (as1543) cleans up the situation. It keeps ehci->command
up-to-date, and uses that value rather than reading the register from
the hardware whenever possible.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-xilinx-of.c')
0 files changed, 0 insertions, 0 deletions
