From: Alexandre Bounine <alexandre.bounine@idt.com>
Date: Thu, 1 Sep 2016 23:15:15 +0000 (-0700)
Subject: rapidio/documentation/mport_cdev: add missing parameter description
X-Git-Tag: v4.8-rc5~21^2~1
X-Git-Url: http://git.cascardo.info/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=1e1011af7a5725141aa4c8d30132acd93fe3da4e

rapidio/documentation/mport_cdev: add missing parameter description

Add missing description for rio_mport_cdev driver parameter
'dma_timeout'.

This patch is applicable to kernel versions starting from v4.6.

Link: http://lkml.kernel.org/r/20160901173104.2928-1-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/Documentation/rapidio/mport_cdev.txt b/Documentation/rapidio/mport_cdev.txt
index 6e491a662461..a53f786ee2e9 100644
--- a/Documentation/rapidio/mport_cdev.txt
+++ b/Documentation/rapidio/mport_cdev.txt
@@ -80,6 +80,10 @@ functionality of their platform when planning to use this driver:
 
 III. Module parameters
 
+- 'dma_timeout' - DMA transfer completion timeout (in msec, default value 3000).
+        This parameter set a maximum completion wait time for SYNC mode DMA
+        transfer requests and for RIO_WAIT_FOR_ASYNC ioctl requests.
+
 - 'dbg_level' - This parameter allows to control amount of debug information
         generated by this device driver. This parameter is formed by set of
         bit masks that correspond to the specific functional blocks.