Re: [PATCH v2 0/3] Fix DNV HSUART RX DMA timeout interrupt issue

From: Andy Shevchenko
Date: Wed Jun 15 2016 - 08:14:35 EST


On Wed, 2016-06-15 at 13:44 +0800, Chuah Kim Tatt wrote:
> From: "Chuah, Kim Tatt" <kim.tatt.chuah@xxxxxxxxx>
>
> These patches fix a DNV HSUART DMA issue with timeout interrupts,
> where
> RX data is stuck in buffer when RX DMA is used and the number of
> received
> bytes is less than 4096.
> These patches have been tested on Intel Denverton platform.

For entire series:
Acked-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

>
> Changes from v1:
> Â - Added patch "serial: 8250_dma: Export serial8250_rx_dma_flush()"
> to solve
> ÂÂÂÂbuild error when CONFIG_SERIAL_8250_MID is set to "m".
>
> Chuah, Kim Tatt (3):
> Â dmaengine: hsu: Export hsu_dma_get_status()
> Â serial: 8250_dma: Export serial8250_rx_dma_flush()
> Â serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV
>
> Âdrivers/dma/hsu/hsu.cÂÂÂÂÂÂÂÂÂÂÂÂÂÂ| 90
> +++++++++++++++++++++++++++++---------
> Âdrivers/dma/hsu/pci.cÂÂÂÂÂÂÂÂÂÂÂÂÂÂ| 11 ++++-
> Âdrivers/tty/serial/8250/8250_dma.c |ÂÂ1 +
> Âdrivers/tty/serial/8250/8250_mid.c | 24 +++++++---
> Âinclude/linux/dma/hsu.hÂÂÂÂÂÂÂÂÂÂÂÂ| 14 ++++--
> Â5 files changed, 109 insertions(+), 31 deletions(-)
>

--

Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy