linux-kernel - [PATCH 0/2] Fix DNV HSUART RX DMA timeout interrupt issue

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Message-Id: <1463127320-13943-1-git-send-email-kim.tatt.chuah@intel.com>
Date:	Fri, 13 May 2016 16:15:18 +0800
From:	Chuah Kim Tatt <kim.tatt.chuah@...el.com>
To:	gregkh@...uxfoundation.org, vinod.koul@...el.com
Cc:	heikki.krogerus@...ux.intel.com, andriy.shevchenko@...ux.intel.com,
	mika.westerberg@...ux.intel.com, kim.tatt.chuah@...el.com,
	linux-kernel@...r.kernel.org, jui.nee.tan@...el.com
Subject: [PATCH 0/2] Fix DNV HSUART RX DMA timeout interrupt issue

From: "Chuah, Kim Tatt" <kim.tatt.chuah@...el.com>

These patches fix a DNV HSUART DMA issue with timeout interrupts which causes:
  - RX to be padded with zeros up to 4kB when <4kB should be received
  - RX to be truncated at 4kB when >4kB should be received.
These patches have been tested on Intel Denverton platform.


Chuah, Kim Tatt (2):
  dmaengine: hsu: Export hsu_dma_get_status()
  serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV

 drivers/dma/hsu/hsu.c              | 90 +++++++++++++++++++++++++++++---------
 drivers/dma/hsu/pci.c              | 11 ++++-
 drivers/tty/serial/8250/8250_mid.c | 24 +++++++---
 include/linux/dma/hsu.h            | 14 ++++--
 4 files changed, 108 insertions(+), 31 deletions(-)

-- 
1.9.1