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@xxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx>
---
V1->V2:
- Added Reviewed-by from Stephen.
- Created a table for nodes to be skipped.
drivers/of/platform.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index c00d81dfac0b..93aff2bf56f9 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 */
};
+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);
--
2.15.0.194.g9af6a3dea062
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