linux-kernel - [PATCH v3 2/6] iommu/rockchip: add map_sg callback for rk_iommu

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Message-Id: <1465992285-16187-3-git-send-email-zhengsq@rock-chips.com>
Date:	Wed, 15 Jun 2016 20:04:41 +0800
From:	Shunqian Zheng <zhengsq@...k-chips.com>
To:	joro@...tes.org, heiko@...ech.de, robh+dt@...nel.org,
	mark.rutland@....com, linux@...linux.org.uk,
	mark.yao@...k-chips.com, airlied@...ux.ie, tfiga@...gle.com,
	xxm@...k-chips.com
Cc:	linux-arm-kernel@...ts.infradead.org,
	iommu@...ts.linux-foundation.org, devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org
Subject: [PATCH v3 2/6] iommu/rockchip: add map_sg callback for rk_iommu_ops

From: Simon Xue <xxm@...k-chips.com>

The iommu_dma_alloc() in iommu/dma-iommu.c calls iommu_map_sg()
that requires the callback iommu_ops .map_sg(). Adding the
default_iommu_map_sg() to rockchip iommu accordingly.

Signed-off-by: Simon Xue <xxm@...k-chips.com>
Signed-off-by: Shunqian Zheng <xxm@...k-chips.com>
Reviewed-by: Tomasz Figa <tfiga@...omium.org>
---
 drivers/iommu/rockchip-iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index ec0ce62..3c16ec3 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1022,6 +1022,7 @@ static const struct iommu_ops rk_iommu_ops = {
 	.detach_dev = rk_iommu_detach_device,
 	.map = rk_iommu_map,
 	.unmap = rk_iommu_unmap,
+	.map_sg = default_iommu_map_sg,
 	.add_device = rk_iommu_add_device,
 	.remove_device = rk_iommu_remove_device,
 	.iova_to_phys = rk_iommu_iova_to_phys,
-- 
1.9.1