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authorRobin Murphy <robin.murphy@arm.com>2024-07-02 14:40:48 +0300
committerWill Deacon <will@kernel.org>2024-07-04 16:36:03 +0300
commit3f7c320916282c26812d70cfe8830abb9e4dc696 (patch)
treeee71ccfa4930e832a717fc91f7e3ef1a057d8978 /drivers/iommu/tegra-smmu.c
parente7acc36f26b0b1a71dd068f4afd33d871352d67d (diff)
downloadlinux-3f7c320916282c26812d70cfe8830abb9e4dc696.tar.xz
iommu: Resolve fwspec ops automatically
There's no real need for callers to resolve ops from a fwnode in order to then pass both to iommu_fwspec_init() - it's simpler and more sensible for that to resolve the ops itself. This in turn means we can centralise the notion of checking for a present driver, and enforce that fwspecs aren't allocated unless and until we know they will be usable. Also use this opportunity to modernise with some "new" helpers that arrived shortly after this code was first written; the generic fwnode_handle_get() clears up that ugly get/put mismatch, while of_fwnode_handle() can now abstract those open-coded dereferences. Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/0e2727adeb8cd73274425322f2f793561bdc927e.1719919669.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/tegra-smmu.c')
-rw-r--r--drivers/iommu/tegra-smmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index f86c7ae91814..4365d9936e68 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -837,7 +837,7 @@ static int tegra_smmu_configure(struct tegra_smmu *smmu, struct device *dev,
const struct iommu_ops *ops = smmu->iommu.ops;
int err;
- err = iommu_fwspec_init(dev, &dev->of_node->fwnode, ops);
+ err = iommu_fwspec_init(dev, of_fwnode_handle(dev->of_node));
if (err < 0) {
dev_err(dev, "failed to initialize fwspec: %d\n", err);
return err;