tree a445204f4d0a5bdf22f02741b373a56a700e11ea
parent ed6d6f8f42d7302f6f9b6245f34927ec20d26c12
author Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> 1476937159 +0900
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1477312546 +0200

usb: renesas_usbhs: add wait after initialization for R-Car Gen3

Since the controller on R-Car Gen3 doesn't have any status registers
to detect initialization (LPSTS.SUSPM = 1) and the initialization needs
up to 45 usec, this patch adds wait after the initialization. Otherwise,
writing other registers (e.g. INTENB0) will fail.

Fixes: de18757e272d ("usb: renesas_usbhs: add R-Car Gen3 power control")
Cc: <stable@vger.kernel.org> # v4.6+
Cc: <balbi@kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>