From acbb7cd4d34caec36ff6d044a8f55325fa27459f Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Thu, 1 Aug 2019 19:12:55 +0530 Subject: 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 Signed-off-by: Sekhar Nori --- drivers/clk/clk-uclass.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index cee4d912b0..c66b6f3c4e 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", -- cgit