On 08/20/2015 11:34 PM, Marek Vasut wrote:
On Friday, August 21, 2015 at 01:38:05 AM, Stephen Warren wrote:
From: Stephen Warren <swar...@nvidia.com>
When an EHCI device is registered in device mode, the HW isn't actually
initialized at all, and hence isn't left in a running state. Consequently,
when the device is deregistered, ehci_shutdown() will fail, since the HW
bits it expects to see set in response to its shutdown requests will not
be sent, and the message "EHCI failed to shut down host controller." will
be printed.
Fix ehci-hcd.c to remember whether the device was registered in host or
device mode, and only call ehci_shutdown() for host mode registrations.
Hi,
Shouldn't you instead check if the controller is running or not and shut
it down based on that ?
Why would the two states be different? How can the code check if the
controller is running; is there some HW bit that should be checked for that?
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