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dmaengine: sh: rcar-dmac: Use device_iommu_mapped()

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Use Use device_iommu_mapped() to check if the device is
already mapped by an IOMMU.

Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2018-11-30 14:29:01 +01:00
parent 05afde1a7e
commit f884f6ee62
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/sh/rcar-dmac.c
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@ -1809,7 +1809,7 @@ static int rcar_dmac_probe(struct platform_device *pdev)
* level we can't disable it selectively, so ignore channel 0 for now if
* the device is part of an IOMMU group.
*/
if (pdev->dev.iommu_group) {
if (device_iommu_mapped(&pdev->dev)) {
dmac->n_channels--;
channels_offset = 1;
}