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Groups > linux.kernel > #1400600

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

From Chuah Kim Tatt <kim.tatt.chuah@intel.com>
Newsgroups linux.kernel
Subject [PATCH 0/2] Fix DNV HSUART RX DMA timeout interrupt issue
Date 2016-05-13 10:20 +0200
Message-ID <rygue-822-9@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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From: "Chuah, Kim Tatt" <kim.tatt.chuah@intel.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

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[PATCH 0/2] Fix DNV HSUART RX DMA timeout interrupt issue Chuah Kim Tatt <kim.tatt.chuah@intel.com> - 2016-05-13 10:20 +0200
  [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV Chuah Kim Tatt <kim.tatt.chuah@intel.com> - 2016-05-13 10:20 +0200
  [PATCH 1/2] dmaengine: hsu: Export hsu_dma_get_status() Chuah Kim Tatt <kim.tatt.chuah@intel.com> - 2016-05-13 10:20 +0200
    Re: [PATCH 1/2] dmaengine: hsu: Export hsu_dma_get_status() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-05-13 13:20 +0200

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