From 25f1c96a0e841013647d788d4598e364e5c2ebb7 Mon Sep 17 00:00:00 2001 From: Chuan Liu Date: Tue, 10 Sep 2024 13:53:44 +0800 Subject: [PATCH] clk: Fix invalid execution of clk_set_rate Some clocks have rates that can be changed elsewhere, so add a flag CLK_GET_RATE_NOCACHE(such as scmi_clk) to these clocks to ensure that the real-time rate is obtained. When clk_set_rate is called, it is returned if the request to set rate is consistent with the current rate. Getting the current rate in clk_set_rate returns the rate stored in clk_core. CLK_GET_RATE_NOCACHE does not take effect here. Signed-off-by: Chuan Liu Link: https://lore.kernel.org/r/20240910-fix_clk-v1-1-111443baaeaa@amlogic.com Signed-off-by: Stephen Boyd --- drivers/clk/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 9b45fa005030f..bdc6e5b90da58 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2530,7 +2530,7 @@ static int clk_core_set_rate_nolock(struct clk_core *core, rate = clk_core_req_round_rate_nolock(core, req_rate); /* bail early if nothing to do */ - if (rate == clk_core_get_rate_nolock(core)) + if (rate == clk_core_get_rate_recalc(core)) return 0; /* fail on a direct rate set of a protected provider */