From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 30 Nov 2018 13:29:01 +0000 (+0100)
Subject: dmaengine: sh: rcar-dmac: Use device_iommu_mapped()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f884f6ee62604aec60fe1760f94724be192d97c0;p=linux.git

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

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>
---

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 74fa2b1a6a866..2b4f256981695 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -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;
 	}