dm: Provide a function to scan child FDT nodes
At present only root nodes in the device tree are scanned for devices.
But some devices can have children. For example a SPI bus may have
several children for each of its chip selects.
Add a function which scans subnodes and binds devices for each one. This
can be used for the root node scan also, so change it.
A device can call this function in its bind() or probe() methods to bind
its children.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/test.dts b/test/dm/test.dts
index 60503f1..8489595 100644
--- a/test/dm/test.dts
+++ b/test/dm/test.dts
@@ -43,14 +43,28 @@
some-bus {
#address-cells = <1>;
#size-cells = <0>;
+ compatible = "denx,u-boot-test-bus";
reg = <3>;
ping-expect = <4>;
ping-add = <4>;
- c-test {
+ c-test@5 {
compatible = "denx,u-boot-fdt-test";
reg = <5>;
+ ping-expect = <5>;
ping-add = <5>;
};
+ c-test@0 {
+ compatible = "denx,u-boot-fdt-test";
+ reg = <0>;
+ ping-expect = <6>;
+ ping-add = <6>;
+ };
+ c-test@1 {
+ compatible = "denx,u-boot-fdt-test";
+ reg = <1>;
+ ping-expect = <7>;
+ ping-add = <7>;
+ };
};
d-test {