From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51135 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751658AbcDQLGw (ORCPT ); Sun, 17 Apr 2016 07:06:52 -0400 Subject: Patch "usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer" has been added to the 4.5-stable tree To: yoshihiro.shimoda.uh@renesas.com, felipe.balbi@linux.intel.com, gregkh@linuxfoundation.org Cc: , From: Date: Sun, 17 Apr 2016 03:27:07 -0700 Message-ID: <1460888827198188@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer to the 4.5-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-disable-tx-irq-before-starting-tx-dmac-transfer.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 6490865c67825277b29638e839850882600b48ec Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Thu, 10 Mar 2016 11:30:15 +0900 Subject: usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer From: Yoshihiro Shimoda commit 6490865c67825277b29638e839850882600b48ec upstream. This patch adds a code to surely disable TX IRQ of the pipe before starting TX DMAC transfer. Otherwise, a lot of unnecessary TX IRQs may happen in rare cases when DMAC is used. Fixes: e73a989 ("usb: renesas_usbhs: add DMAEngine support") Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/renesas_usbhs/fifo.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -890,6 +890,7 @@ static int usbhsf_dma_prepare_push(struc pkt->trans = len; + usbhsf_tx_irq_ctrl(pipe, 0); INIT_WORK(&pkt->work, xfer_work); schedule_work(&pkt->work); Patches currently in stable-queue which might be from yoshihiro.shimoda.uh@renesas.com are queue-4.5/usb-renesas_usbhs-fix-to-avoid-using-a-disabled-ep-in-usbhsg_queue_done.patch queue-4.5/usb-renesas_usbhs-avoid-null-pointer-derefernce-in-usbhsf_pkt_handler.patch queue-4.5/usb-renesas_usbhs-disable-tx-irq-before-starting-tx-dmac-transfer.patch