From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/3] of/platform: teardown DMA mappings on device destruction
Date: Wed, 14 Jan 2015 19:13:21 +0000 [thread overview]
Message-ID: <1421262803-21003-2-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1421262803-21003-1-git-send-email-will.deacon@arm.com>
Now that we can create and attach to IOMMU domains via of_dma_configure,
make sure we give the architecture a chance to tear them down when a
platform or amba device is destroyed.
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
drivers/of/platform.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 5b33c6a21807..3f61d668ded7 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -526,6 +526,7 @@ static int of_platform_device_destroy(struct device *dev, void *data)
amba_device_unregister(to_amba_device(dev));
#endif
+ of_dma_deconfigure(dev);
of_node_clear_flag(dev->of_node, OF_POPULATED);
of_node_clear_flag(dev->of_node, OF_POPULATED_BUS);
return 0;
--
2.1.4
next prev parent reply other threads:[~2015-01-14 19:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-14 19:13 [PATCH v2 0/3] DMA teardown fixes Will Deacon
2015-01-14 19:13 ` Will Deacon [this message]
2015-01-14 19:53 ` [PATCH v2 1/3] of/platform: teardown DMA mappings on device destruction Rob Herring
2015-01-14 19:13 ` [PATCH v2 2/3] ARM: dma-mapping: don't detach devices without an IOMMU during teardown Will Deacon
2015-01-14 19:13 ` [PATCH v2 3/3] ARM: dma-mapping: use to_dma_iommu_mapping instead of accessing archdata Will Deacon
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