From 4550fe6370ab01f6b1dff97ceffc284d1f38e70c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 17 Apr 2018 11:57:34 +0530 Subject: 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 Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rob Herring --- drivers/of/platform.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/of') diff --git a/drivers/of/platform.c b/drivers/of/platform.c index c00d81dfac0b..d75050b85d0c 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); -- cgit v1.2.3-55-g7522