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

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Message-ID: <20160616093432.GB2428@kuha.fi.intel.com>
Date:	Thu, 16 Jun 2016 12:34:32 +0300
From:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:	Chuah Kim Tatt <kim.tatt.chuah@...el.com>
Cc:	gregkh@...uxfoundation.org, vinod.koul@...el.com,
	andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com,
	linux-kernel@...r.kernel.org, jui.nee.tan@...el.com,
	peter@...leysoftware.com, linux-serial@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Fix DNV HSUART RX DMA timeout interrupt issue

On Wed, Jun 15, 2016 at 01:44:10PM +0800, Chuah Kim Tatt wrote:
> From: "Chuah, Kim Tatt" <kim.tatt.chuah@...el.com>
> 
> 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 the series:

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> Changes from v1:
>   - Added patch "serial: 8250_dma: Export serial8250_rx_dma_flush()" to solve
>     build error when CONFIG_SERIAL_8250_MID is set to "m".
> 
> Chuah, Kim Tatt (3):
>   dmaengine: hsu: Export hsu_dma_get_status()
>   serial: 8250_dma: Export serial8250_rx_dma_flush()
>   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_dma.c |  1 +
>  drivers/tty/serial/8250/8250_mid.c | 24 +++++++---
>  include/linux/dma/hsu.h            | 14 ++++--
>  5 files changed, 109 insertions(+), 31 deletions(-)
> 
> -- 
> 1.9.1

Thanks,

-- 
heikki