tree eda57d029c3e6a09fb82ec2fab884cf9b564a331
parent ceb176118103479a171da941aecc457767b535c7
author Stefan Agner <stefan@agner.ch> 1515678460 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1515692392 +0100

usb: misc: usb3503: make sure reset is low for at least 100us

When using a GPIO which is high by default, and initialize the
driver in USB Hub mode, initialization fails with:
  [  111.757794] usb3503 0-0008: SP_ILOCK failed (-5)

The reason seems to be that the chip is not properly reset.
Probe does initialize reset low, however some lines later the
code already set it back high, which is not long enouth.

Make sure reset is asserted for at least 100us by inserting a
delay after initializing the reset pin during probe.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>