linux-kernel - [PATCH] rpmsg: core: make rpmsg bus DMA capable

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Message-Id: <20181130112049.14444-1-srinivas.kandagatla@linaro.org>
Date:   Fri, 30 Nov 2018 11:20:49 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org
Cc:     linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH] rpmsg: core: make rpmsg bus DMA capable

Many of the rpmsg clients like audio, fastrpc drivers need to allocate
dma memory. Make this bus DMA capable so that the child devices can
use dma apis.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/rpmsg/rpmsg_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index 8122807db380..33881e70f478 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -510,6 +510,7 @@ static struct bus_type rpmsg_bus = {
 	.uevent		= rpmsg_uevent,
 	.probe		= rpmsg_dev_probe,
 	.remove		= rpmsg_dev_remove,
+	.dma_configure	= platform_dma_configure,
 };
 
 int rpmsg_register_device(struct rpmsg_device *rpdev)
-- 
2.19.2