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Subject: Re: [PATCH v5 3/3] ARM: dts: sun8i-r40: Add thermal trip
 points/cooling maps
To:     qianfanguijin@163.com
Cc:     linux-sunxi@lists.linux.dev, Rob Herring <robh+dt@kernel.org>,
        Maxime Ripard <mripard@kernel.org>,
        Chen-Yu Tsai <wens@csie.org>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Viresh Kumar <viresh.kumar@linaro.org>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
References: <20220517013607.2252-1-qianfanguijin@163.com>
 <20220517013607.2252-4-qianfanguijin@163.com>
From:   Samuel Holland <samuel@sholland.org>
Message-ID: <75c9edeb-edfd-b910-7f72-53f7694b456d@sholland.org>
Date:   Tue, 5 Jul 2022 00:07:49 -0500
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On 5/16/22 8:36 PM, qianfanguijin@163.com wrote:
> From: qianfan Zhao <qianfanguijin@163.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@163.com>

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