Messages in this thread | | | From | Joerg Roedel <> | Subject | [PATCH 0/6 v2] of: Implement iterator for phandles | Date | Mon, 4 Apr 2016 17:49:16 +0200 |
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Hi,
here is a new version of the implementation of the iterator over phandles concept which Rob Herring suggested to me some time ago. My approach is a little bit different from what the diff showed back then, but it gets rid of the allocation and 'struct of_phandle_args' misuse.
I also converted the arm-smmu driver to make use of the iterator. The resulting kernel boots on my AMD Seattle system and fixes the warning triggered there. The patches now also pass all dt-unittests in my kvm environment.
Patches are based on v4.6-rc2
Thanks,
Joerg
Changes since v1:
* Rebased to v4.6-rc2
* Removed the 'if (i == 0)...' hunk from the last patch
* Tested again with DT unit-tests and on the seattle system
Changes since RFC post:
* Reordered members of 'struct of_phandle_iterator' and did some renaming
* Removed index counting from the iterator
* Split up iterator implementation into multiple patches
* Fixed the code to survive all dt-unittests, tested with each patch in this series
* Re-added and updated some comments which got lost during the conversion.
* Added of_for_each_phandle macro for easier handling
* Moved the counting special-case from __of_parse_phandle_with_args directly to of_count_phandle_with_args for code simplification
* Removed some iterator helper functions
* Formatting and style changes
Joerg Roedel (6): of: Introduce struct of_phandle_iterator of: Move phandle walking to of_phandle_iterator_next() of: Remove counting special case from __of_parse_phandle_with_args() of: Introduce of_for_each_phandle() helper macro of: Introduce of_phandle_iterator_args() iommu/arm-smmu: Make use of phandle iterators in device-tree parsing
drivers/iommu/arm-smmu.c | 38 +++++++-- drivers/of/base.c | 206 ++++++++++++++++++++++++++++++----------------- include/linux/of.h | 56 +++++++++++++ 3 files changed, 219 insertions(+), 81 deletions(-)
-- 1.9.1
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