lkml.org 
[lkml]   [2016]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 07/14] staging: fsl-mc: set up coherent dma ops for added devices
Date
From: Stuart Yoder <stuart.yoder@nxp.com>

Unless discovered devices have the no shareability flag set,
set up coherent dma ops for them.

Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
---
drivers/staging/fsl-mc/bus/mc-bus.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
index 981e4c2..8bf76d7 100644
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/mc-bus.c
@@ -469,6 +469,10 @@ int fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
goto error_cleanup_dev;
}

+ /* Objects are coherent, unless 'no shareability' flag set. */
+ if (!(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY))
+ arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true);
+
/*
* The device-specific probe callback will get invoked by device_add()
*/
--
1.7.9.5
\
 
 \ /
  Last update: 2016-04-11 19:21    [W:0.106 / U:0.376 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site