diff options
author | Pawel Moll <pawel.moll@arm.com> | 2014-05-15 16:55:24 +0100 |
---|---|---|
committer | Pawel Moll <pawel.moll@arm.com> | 2014-05-15 17:02:14 +0100 |
commit | c6e126de43e7d4abfd6cf796b40589db3a046167 (patch) | |
tree | 78db63df172516da22235bed2c30544a69fc20bd /usr/.gitignore | |
parent | d6d211db37e75de2ddc3a4f979038c40df7cc79c (diff) |
of: Keep track of populated platform devices
In "Device Tree powered" systems, platform devices are usually massively
populated with of_platform_populate() call, executed at some level of
initcalls, either by generic architecture or by platform-specific code.
There are situations though where certain devices must be created (and
bound with drivers) before all the others. This presents a challenge,
as devices created explicitly would be created again by
of_platform_populate().
This patch tries to solve that issue in a generic way, adding a
"populated" flag for a DT node description. Subsequent
of_platform_populate() will skip such nodes (and its children) in
a similar way to the non-available ones.
This patch also adds of_platform_depopulate() as an operation
complementary to the _populate() one. It removes a platform or an amba
device populated from the Device Tree, together with its all children
(leaving, however, devices without associated of_node untouched)
clearing the "populated" flag on the way.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'usr/.gitignore')
0 files changed, 0 insertions, 0 deletions