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

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
@@ -1346,6 +1346,8 @@ 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