From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44897 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751774AbcJDIUn (ORCPT ); Tue, 4 Oct 2016 04:20:43 -0400 Subject: Patch "usb: musb: Fix DMA desired mode for Mentor DMA engine" has been added to the 4.4-stable tree To: cristian.birsan@microchip.com, aford173@gmail.com, balbi@kernel.org, gregkh@linuxfoundation.org, joshua.henderson@microchip.com, sergei.shtylyov@cogentembedded.com, tony@atomide.com Cc: , From: Date: Tue, 04 Oct 2016 10:17:01 +0200 Message-ID: <1475569021140225@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: musb: Fix DMA desired mode for Mentor DMA engine to the 4.4-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-musb-fix-dma-desired-mode-for-mentor-dma-engine.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From bba40e6948b94cba71965285fbac31bd078c024a Mon Sep 17 00:00:00 2001 From: Cristian Birsan Date: Thu, 11 Feb 2016 08:58:17 -0700 Subject: usb: musb: Fix DMA desired mode for Mentor DMA engine From: Cristian Birsan commit bba40e6948b94cba71965285fbac31bd078c024a upstream. Commit 754fe4a92c07 ("usb: musb: Remove ifdefs for TX DMA for musb_host.c") introduces a problem setting the desired channel mode for the Mentor DMA engine. There is a case where an address is incorrectly assigned to the DMA channel desired mode when it should instead be assigned the actual mode value. This results in the value of channel->desired_mode not being correct. Acked-by: Sergei Shtylyov Signed-off-by: Cristian Birsan Signed-off-by: Joshua Henderson Signed-off-by: Felipe Balbi Cc: Adam Ford Cc: Tony Lindgren Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -661,7 +661,7 @@ static int musb_tx_dma_set_mode_mentor(s csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE); csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */ } - channel->desired_mode = mode; + channel->desired_mode = *mode; musb_writew(epio, MUSB_TXCSR, csr); return 0; Patches currently in stable-queue which might be from cristian.birsan@microchip.com are queue-4.4/usb-musb-fix-dma-for-host-mode.patch queue-4.4/usb-musb-fix-dma-desired-mode-for-mentor-dma-engine.patch