Subject: [PATCH v3 08/11] 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
Changes in v3:
- Replace -ENODEV with -ENOENT
- Use **clkp instead of **c
drivers/clk/clk-uclass.c | 22 ++++++++++++++++++++++ include/clk.h | 11 +++++++++++ 2 files changed, 33 insertions(+)
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index da6624d4f2..85dae5321a 100644 --- a/drivers/clk/clk-uclass.c +++ b/drivers/clk/clk-uclass.c @@ -451,6 +451,28 @@ int clk_disable_bulk(struct clk_bulk *bulk) 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 = (struct clk *)dev_get_driver_data(dev);if (clk && clk->id == id) {*clkp = clk;return 0;}- }
- return -ENOENT;
+}
UCLASS_DRIVER(clk) = { .id = UCLASS_CLK, .name = "clk", diff --git a/include/clk.h b/include/clk.h index 98c3e12fb4..a4ecca9fbc 100644 --- a/include/clk.h +++ b/include/clk.h @@ -326,4 +326,15 @@ static inline bool clk_valid(struct clk *clk) { return !!clk->dev; }
+/**
- clk_get_by_id() - Get the clock by its ID
- @id: The clock ID to search for
- @clkp: A pointer to clock struct that has been found among added
clocks
to UCLASS_CLK
- @return zero on success, or -ENOENT on error */ int
+clk_get_by_id(ulong id, struct clk **clkp);
Reviewed-by: Peng Fan peng.fan@nxp.com
#endif
2.11.0