openwrt/target/linux/bcm27xx/patches-5.15/950-0440-clk-Always-clamp-the-rounded-rate.patch

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From 5efe54b26d470785883bec0264d8d5e145715038 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 5 May 2021 15:35:34 +0200
Subject: [PATCH] clk: Always clamp the rounded rate
The current core while setting the min and max rate properly in the
clk_request structure will not make sure that the requested rate is
within these boundaries, leaving it to each and every driver to make
sure it is.
Add a clamp call to make sure it's always done.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/clk/clk.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1347,6 +1347,8 @@ static int clk_core_determine_round_nolo
if (!core)
return 0;
+ req->rate = clamp(req->rate, req->min_rate, req->max_rate);
+
/*
* At this point, core protection will be disabled
* - if the provider is not protected at all