Commit 6c019f4e authored Jul 18, 2020 by Krishna Reddy Committed by Will Deacon Jul 20, 2020

iommu/arm-smmu: ioremap smmu mmio region before implementation init



ioremap smmu mmio region before calling into implementation init.
This is necessary to allow mapped address available during vendor
specific implementation init.

Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Nicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Link: https://lore.kernel.org/r/20200718193457.30046-3-vdumpa@nvidia.com


Signed-off-by: Will Deacon <will@kernel.org>

parent cd8479cf

drivers/iommu/arm-smmu.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -2123,10 +2123,6 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
		if (err)
		return err;

		smmu = arm_smmu_impl_init(smmu);
		if (IS_ERR(smmu))
		return PTR_ERR(smmu);

		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		ioaddr = res->start;
		smmu->base = devm_ioremap_resource(dev, res);
		@@ -2138,6 +2134,10 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
		*/
		smmu->numpage = resource_size(res);

		smmu = arm_smmu_impl_init(smmu);
		if (IS_ERR(smmu))
		return PTR_ERR(smmu);

		num_irqs = 0;
		while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, num_irqs))) {
		num_irqs++;

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