[RFC PATCH 50/57] drivers: iommu: arm-smmu: Use driver_find_device_by_fwnode() helper

Suzuki K Poulose
2019-06-03T15:52:42Z

Reuse the driver_find_device_by_fwnode() helper to lookup devices.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
drivers/iommu/arm-smmu-v3.c | 9 ++-------
drivers/iommu/arm-smmu.c | 9 ++-------
2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index d787856..1f9851f 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2023,16 +2023,11 @@ arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)

static struct platform_driver arm_smmu_driver;

-static int arm_smmu_match_node(struct device *dev, const void *data)
-{
- return dev->fwnode == data;
-}
-
static
struct arm_smmu_device *arm_smmu_get_by_fwnode(struct fwnode_handle *fwnode)
{
- struct device *dev = driver_find_device(&arm_smmu_driver.driver, NULL,
- fwnode, arm_smmu_match_node);
+ struct device *dev = driver_find_device_by_fwnode(&arm_smmu_driver.driver,
+ NULL, fwnode);
put_device(dev);
return dev ? dev_get_drvdata(dev) : NULL;
}
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 4ce429b..c962e82 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1431,16 +1431,11 @@ static bool arm_smmu_capable(enum iommu_cap cap)
}
}

-static int arm_smmu_match_node(struct device *dev, const void *data)
-{
- return dev->fwnode == data;
-}
-
static
struct arm_smmu_device *arm_smmu_get_by_fwnode(struct fwnode_handle *fwnode)
{
- struct device *dev = driver_find_device(&arm_smmu_driver.driver, NULL,
- fwnode, arm_smmu_match_node);
+ struct device *dev = driver_find_device_by_fwnode(&arm_smmu_driver.driver,
+ NULL, fwnode);
put_device(dev);
return dev ? dev_get_drvdata(dev) : NULL;
}
--
2.7.4