dm: clk: Define clk_get_by_id() for clk operations
This commit adds the clk_get_by_id() function, which is responsible
for getting the udevice with matching clk->id. Such approach allows
re-usage of inherit DM list relationship for the same class (UCLASS_CLK).
As a result - we don't need any other external list - it is just enough
to look for UCLASS_CLK related udevices.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 899b2dd..506ba60 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -491,6 +491,28 @@
return 0;
}
+int clk_get_by_id(ulong id, struct clk **clkp)
+{
+ struct udevice *dev;
+ struct uclass *uc;
+ int ret;
+
+ ret = uclass_get(UCLASS_CLK, &uc);
+ if (ret)
+ return ret;
+
+ uclass_foreach_dev(dev, uc) {
+ struct clk *clk = dev_get_clk_ptr(dev);
+
+ if (clk && clk->id == id) {
+ *clkp = clk;
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+
UCLASS_DRIVER(clk) = {
.id = UCLASS_CLK,
.name = "clk",