Dear all:
Below is a part of ehci_hub_control function in ehci-hub.c.

/* force reset to complete */
writel (temp & ~(PORT_RWC_BITS | PORT_RESET),
                &ehci->regs->port_status [wIndex]);
Where PORT_RWC_BITS = (PORT_CSC | PORT_PEC | PORT_OCC) and if I interpret it
correctly, it will set PORT_CSC, PORT_PEC, PORT_OCC and PORT_RESET as 0.
I can understand why we set PORT_RESET as 0, but why we set other 3
parameters as 0, too.
Thanks for your help,
vichy

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