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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2018-04-17 11:57:34 +0530 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2018-04-24 08:04:04 -0500 |
| commit | 4550fe6370ab01f6b1dff97ceffc284d1f38e70c (patch) | |
| tree | e59baa4f4593e284985e0db65f6fff83b0932ea1 /drivers | |
| parent | 304a39b4bc94525b357083d44d766ff318f208e0 (diff) | |
| download | linux-0-day-4550fe6370ab01f6b1dff97ceffc284d1f38e70c.tar.gz linux-0-day-4550fe6370ab01f6b1dff97ceffc284d1f38e70c.tar.xz | |
of: Don't create device for OPP tables
The OPP tables are present as separate nodes, whose phandle is used in
the "operating-points-v2" property of devices. Currently the OF core
creates a device for the OPP table unconditionally, which is not used by
any kernel code.
This patch creates another OF device_id table for the nodes which must
be skipped while creating devices and OPP is the only user of it for now.
Reported-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/of/platform.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index c00d81dfac0b8..d75050b85d0c2 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -32,6 +32,11 @@ const struct of_device_id of_default_bus_match_table[] = { {} /* Empty terminated list */ }; +static const struct of_device_id of_skipped_node_table[] = { + { .compatible = "operating-points-v2", }, + {} /* Empty terminated list */ +}; + static int of_dev_node_match(struct device *dev, void *data) { return dev->of_node == data; @@ -356,6 +361,12 @@ static int of_platform_bus_create(struct device_node *bus, return 0; } + /* Skip nodes for which we don't want to create devices */ + if (unlikely(of_match_node(of_skipped_node_table, bus))) { + pr_debug("%s() - skipping %pOF node\n", __func__, bus); + return 0; + } + if (of_node_check_flag(bus, OF_POPULATED_BUS)) { pr_debug("%s() - skipping %pOF, already populated\n", __func__, bus); |