linux-kernel - Re: [PATCH v5 3/3] ARM: dts: sun8i-r40: Add thermal trip points/cooling maps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <75c9edeb-edfd-b910-7f72-53f7694b456d@sholland.org>
Date:   Tue, 5 Jul 2022 00:07:49 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     qianfanguijin@....com
Cc:     linux-sunxi@...ts.linux.dev, Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v5 3/3] ARM: dts: sun8i-r40: Add thermal trip
 points/cooling maps

On 5/16/22 8:36 PM, qianfanguijin@....com wrote:
> From: qianfan Zhao <qianfanguijin@....com>
> 
> For the trip points, I used values from the BSP code.
> 
> The critical trip point value is 30°C above the maximum recommended
> ambient temperature (85°C) for the SoC from the datasheet, so there's
> some headroom even at such a high ambient temperature.
> 
> Signed-off-by: qianfan Zhao <qianfanguijin@....com>

Reviewed-by: Samuel Holland <samuel@...lland.org>
Tested-by: Samuel Holland <samuel@...lland.org>

which took quite a while to hit the passive trip point:

# cat /sys/class/thermal/cooling_device0/stats/time_in_state_ms
state0  1374892
state1  1499
state2  0
state3  0
state4  0