This is a note to let you know that I've just added the patch titled usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-renesas_usbhs-fix-the-bclr-setting-condition-for-non-dcp-pipe.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 6124607acc88fffeaadf3aacfeb3cc1304c87387 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Date: Wed, 27 Sep 2017 18:47:12 +0900 Subject: usb: renesas_usbhs: fix the BCLR setting condition for non-DCP pipe From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> commit 6124607acc88fffeaadf3aacfeb3cc1304c87387 upstream. This patch fixes an issue that the driver sets the BCLR bit of {C,Dn}FIFOCTR register to 1 even when it's non-DCP pipe and the FRDY bit of {C,Dn}FIFOCTR register is set to 1. Fixes: e8d548d54968 ("usb: renesas_usbhs: fifo became independent from pipe.") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/renesas_usbhs/fifo.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -287,11 +287,17 @@ static void usbhsf_fifo_clear(struct usb struct usbhs_fifo *fifo) { struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe); + int ret = 0; if (!usbhs_pipe_is_dcp(pipe)) - usbhsf_fifo_barrier(priv, fifo); + ret = usbhsf_fifo_barrier(priv, fifo); - usbhs_write(priv, fifo->ctr, BCLR); + /* + * if non-DCP pipe, this driver should set BCLR when + * usbhsf_fifo_barrier() returns 0. + */ + if (!ret) + usbhs_write(priv, fifo->ctr, BCLR); } static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv, Patches currently in stable-queue which might be from yoshihiro.shimoda.uh@xxxxxxxxxxx are queue-3.18/usb-renesas_usbhs-fix-usbhsf_fifo_clear-for-rx-direction.patch queue-3.18/usb-renesas_usbhs-fix-the-bclr-setting-condition-for-non-dcp-pipe.patch