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

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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>
This commit is contained in:
Krishna Reddy 2020-07-18 12:34:54 -07:00 committed by Will Deacon
parent cd8479cf0d
commit 6c019f4e69
1 changed files with 4 additions and 4 deletions
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8
drivers/iommu/arm-smmu.c
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@ -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++;