From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Date: Tue, 26 May 2015 11:13:42 +0000 (+0900)
Subject: usb: renesas_usbhs: Fix fifo unclear in usbhsf_prepare_pop
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~2^2~5^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e73d42f15f90614538edeb5d4102f847105f86f2;p=pandora-kernel.git

usb: renesas_usbhs: Fix fifo unclear in usbhsf_prepare_pop

This patch fixes an issue for control write. When usbhsf_prepare_pop()
is called after this driver called a gadget setup function, this controller
doesn't receive the control write data. So, this patch adds a code to clear
the fifo for control write in usbhsf_prepare_pop().

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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