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From: srinivas.kandagatla@linaro.org
To: will.deacon@arm.com, robin.murphy@arm.com, bjorn.andersson@linaro.org
Cc: joro@8bytes.org, ohad@wizery.com,
	linux-arm-kernel@lists.infradead.org,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	linux-remoteproc@vger.kernel.org,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH 2/3] rpmsg: core: make rpmsg bus DMA capable
Date: Fri,  2 Mar 2018 14:55:30 +0000	[thread overview]
Message-ID: <20180302145531.20463-3-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <20180302145531.20463-1-srinivas.kandagatla@linaro.org>

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

Many of the rpmsg clients like audio 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@linaro.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 e84c71f8d6ab..540a3f3567b8 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -472,6 +472,7 @@ struct bus_type rpmsg_bus = {
 	.uevent		= rpmsg_uevent,
 	.probe		= rpmsg_dev_probe,
 	.remove		= rpmsg_dev_remove,
+	.force_dma	= true,
 };
 EXPORT_SYMBOL(rpmsg_bus);
 
-- 
2.15.1

  parent reply	other threads:[~2018-03-02 14:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-02 14:55 [PATCH 0/3] drivers: rpmsg: " srinivas.kandagatla
2018-03-02 14:55 ` [PATCH 1/3] rpmsg: core: export rpmsg bus type srinivas.kandagatla
2018-03-02 15:25   ` Robin Murphy
2018-03-02 14:55 ` srinivas.kandagatla [this message]
2018-03-02 16:14   ` [PATCH 2/3] rpmsg: core: make rpmsg bus DMA capable Robin Murphy
2018-03-02 16:40     ` Srinivas Kandagatla
2018-03-18 22:47     ` Bjorn Andersson
2018-03-02 14:55 ` [PATCH 3/3] iommu: armsmmu: set iommu ops for rpmsg bus srinivas.kandagatla
2018-03-02 16:59   ` Robin Murphy
2018-05-07 19:28     ` Bjorn Andersson
2018-05-11 18:24       ` Robin Murphy

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