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| author | Sekhar Nori <nsekhar@ti.com> | 2019-08-01 19:12:55 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-08-12 13:33:38 -0400 |
| commit | acbb7cd4d34caec36ff6d044a8f55325fa27459f (patch) | |
| tree | 5e6a7ce2f65e365a906d16b702f9493535811242 /drivers/clk/clk-uclass.c | |
| parent | 71cd80af863945e81f468c22e5e1afb06eba75cd (diff) | |
| download | u-boot-acbb7cd4d34caec36ff6d044a8f55325fa27459f.zip u-boot-acbb7cd4d34caec36ff6d044a8f55325fa27459f.tar.gz u-boot-acbb7cd4d34caec36ff6d044a8f55325fa27459f.tar.bz2 | |
clk: add support for clk_is_match()
Add support for clk_is_match() which is required to
know if two clock pointers point to the same exact
physical clock.
Also add a unit test for the new API.
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'drivers/clk/clk-uclass.c')
| -rw-r--r-- | drivers/clk/clk-uclass.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index cee4d91..c66b6f3 100644 --- a/drivers/clk/clk-uclass.c +++ b/drivers/clk/clk-uclass.c @@ -518,6 +518,19 @@ int clk_get_by_id(ulong id, struct clk **clkp) return -ENOENT; } +bool clk_is_match(const struct clk *p, const struct clk *q) +{ + /* trivial case: identical struct clk's or both NULL */ + if (p == q) + return true; + + /* same device, id and data */ + if (p->dev == q->dev && p->id == q->id && p->data == q->data) + return true; + + return false; +} + UCLASS_DRIVER(clk) = { .id = UCLASS_CLK, .name = "clk", |