openwrt/target/linux/bcm27xx/patches-5.10/950-0596-clk-Always-clamp-the-rounded-rate.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-08-21 19:07:07 +02:00

29 lines
892 B
Diff

From 8f26362634435209e4f849ce2efcb2b4f48c8f5b 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
@@ -1316,6 +1316,8 @@ 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
* - if the provider is not protected at all