usb: chipidea: msm: Ensure proper controller reset using role switch API

usb: chipidea: msm: Ensure proper controller reset using role switch API

commit 91edf63d5022bd0464788ffb4acc3d5febbaf81d upstream.

Currently we check to make sure there is no error state on the extcon
handle for VBUS when writing to the HS_PHY_GENCONFIG_2 register. When using
the USB role-switch API we still need to write to this register absent an
extcon handle.

This patch makes the appropriate update to ensure the write happens if
role-switching is true.

Fixes: 05559f10ed79 ("usb: chipidea: add role switch class support")
Cc: stable <stable@vger.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20200507004918.25975-2-peter.chen@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>