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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>
hifive-unleashed-5.1
Viresh Kumar 2018-04-17 11:57:34 +05:30 committed by Rob Herring
parent 304a39b4bc
commit 4550fe6370
1 changed files with 11 additions and 0 deletions
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11
drivers/of/platform.c
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@ -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);