On 07.02.2019 02:03, Andrey Smirnov wrote:
Xhci_handshake() implements the algorithm already captured by
readl_poll_timeout(). Convert the former to use the latter to avoid
repetition.
readl_poll_timeout() doesn't really work here as it might sleep.
iopoll.h:
/**
* readx_poll_timeout - Periodically poll an address until a condition is met
or a timeout occurs
*
...
* Returns 0 on success and -ETIMEDOUT upon a timeout. In either
* case, the last read value at @addr is stored in @val. Must not
* be called from atomic context if sleep_us or timeout_us are used.
-Mathias
