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author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2019-07-23 23:18:34 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-30 13:07:42 +0200 |
commit | 67843bbaf36eb087714f40e783ee78e99e9e4b86 (patch) | |
tree | cd2b2839bd3510dfd05d2185346a57988fb93c8a /drivers/iommu | |
parent | cfba5de9b99f8bbb8b4ea11b3049784e78b8759b (diff) | |
download | linux-67843bbaf36eb087714f40e783ee78e99e9e4b86.tar.gz linux-67843bbaf36eb087714f40e783ee78e99e9e4b86.tar.bz2 linux-67843bbaf36eb087714f40e783ee78e99e9e4b86.zip |
drivers: Introduce device lookup variants by fwnode
Add a helper to match the firmware node handle of a device and provide
wrappers for {bus/class/driver}_find_device() APIs to avoid proliferation
of duplicate custom match functions.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-usb@vger.kernel.org
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Joe Perches <joe@perches.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20190723221838.12024-4-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r-- | drivers/iommu/arm-smmu-v3.c | 9 | ||||
-rw-r--r-- | 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 a9a9fabd3968..6f0e13fa5e1a 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2034,16 +2034,11 @@ 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, + 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 64977c131ee6..aa06498f291d 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1426,16 +1426,11 @@ 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, + fwnode); put_device(dev); return dev ? dev_get_drvdata(dev) : NULL; } |