of: make kobject and bin_attribute support configurable
Having device_nodes be kobjects is only needed if sysfs or OF_DYNAMIC is
enabled. Otherwise, having a kobject in struct device_node is
unnecessary bloat in minimal kernel configurations.
Likewise, bin_attribute is only needed in struct property when sysfs is
enabled, so we can make it configurable too.
Tested-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index ba7b034..ad9a957 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -46,10 +46,14 @@
config OF_PROMTREE
bool
+config OF_KOBJ
+ def_bool SYSFS
+
# Hardly any platforms need this. It is safe to select, but only do so if you
# need it.
config OF_DYNAMIC
bool "Support for dynamic device trees" if OF_UNITTEST
+ select OF_KOBJ
help
On some platforms, the device tree can be manipulated at runtime.
While this option is selected automatically on such platforms, you