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([2a01:e35:2ec0:82b0:7474:6cdc:8087:ca98]) by smtp.gmail.com with ESMTPSA id z21sm21041584wmk.20.2021.01.11.06.04.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 11 Jan 2021 06:04:33 -0800 (PST) Subject: Re: [PATCH 4/5] ARM: dts: meson8b: add the thermal-zones with cooling configuration To: Martin Blumenstingl , linux-amlogic@lists.infradead.org, khilman@baylibre.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20201221181306.904272-1-martin.blumenstingl@googlemail.com> <20201221181306.904272-5-martin.blumenstingl@googlemail.com> From: Neil Armstrong Autocrypt: addr=narmstrong@baylibre.com; prefer-encrypt=mutual; keydata= mQENBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAG0KE5laWwgQXJtc3Ryb25nIDxuYXJtc3Ryb25nQGJheWxpYnJlLmNvbT6JATsEEwEKACUC GyMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheABQJXDO2CAhkBAAoJEBaat7Gkz/iubGIH/iyk RqvgB62oKOFlgOTYCMkYpm2aAOZZLf6VKHKc7DoVwuUkjHfIRXdslbrxi4pk5VKU6ZP9AKsN NtMZntB8WrBTtkAZfZbTF7850uwd3eU5cN/7N1Q6g0JQihE7w4GlIkEpQ8vwSg5W7hkx3yQ6 2YzrUZh/b7QThXbNZ7xOeSEms014QXazx8+txR7jrGF3dYxBsCkotO/8DNtZ1R+aUvRfpKg5 ZgABTC0LmAQnuUUf2PHcKFAHZo5KrdO+tyfL+LgTUXIXkK+tenkLsAJ0cagz1EZ5gntuheLD YJuzS4zN+1Asmb9kVKxhjSQOcIh6g2tw7vaYJgL/OzJtZi6JlIW5AQ0ETVkGzwEIALyKDN/O GURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYpQTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXM coJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hi SvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY4yG6xI99NIPEVE9lNBXBKIlewIyVlkOa YvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoMMtsyw18YoX9BqMFInxqYQQ3j/HpVgTSv mo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUXoUk33HEAEQEAAYkBHwQYAQIACQUCTVkG zwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfnM7IbRuiSZS1unlySUVYu3SD6YBYnNi3G 5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa33eDIHu/zr1HMKErm+2SD6PO9umRef8V8 2o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCSKmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+ RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJ C3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTTQbM0WUIBIcGmq38+OgUsMYu4NzLu7uZF Acmp6h8guQINBFYnf6QBEADQ+wBYa+X2n/xIQz/RUoGHf84Jm+yTqRT43t7sO48/cBW9vAn9 GNwnJ3HRJWKATW0ZXrCr40ES/JqM1fUTfiFDB3VMdWpEfwOAT1zXS+0rX8yljgsWR1UvqyEP 3xN0M/40Zk+rdmZKaZS8VQaXbveaiWMEmY7sBV3QvgOzB7UF2It1HwoCon5Y+PvyE3CguhBd 9iq5iEampkMIkbA3FFCpQFI5Ai3BywkLzbA3ZtnMXR8Qt9gFZtyXvFQrB+/6hDzEPnBGZOOx zkd/iIX59SxBuS38LMlhPPycbFNmtauOC0DNpXCv9ACgC9tFw3exER/xQgSpDVc4vrL2Cacr wmQp1k9E0W+9pk/l8S1jcHx03hgCxPtQLOIyEu9iIJb27TjcXNjiInd7Uea195NldIrndD+x 58/yU3X70qVY+eWbqzpdlwF1KRm6uV0ZOQhEhbi0FfKKgsYFgBIBchGqSOBsCbL35f9hK/JC 6LnGDtSHeJs+jd9/qJj4WqF3x8i0sncQ/gszSajdhnWrxraG3b7/9ldMLpKo/OoihfLaCxtv xYmtw8TGhlMaiOxjDrohmY1z7f3rf6njskoIXUO0nabun1nPAiV1dpjleg60s3OmVQeEpr3a K7gR1ljkemJzM9NUoRROPaT7nMlNYQL+IwuthJd6XQqwzp1jRTGG26J97wARAQABiQM+BBgB AgAJBQJWJ3+kAhsCAikJEBaat7Gkz/iuwV0gBBkBAgAGBQJWJ3+kAAoJEHfc29rIyEnRk6MQ AJDo0nxsadLpYB26FALZsWlN74rnFXth5dQVQ7SkipmyFWZhFL8fQ9OiIoxWhM6rSg9+C1w+ n45eByMg2b8H3mmQmyWztdI95OxSREKwbaXVapCcZnv52JRjlc3DoiiHqTZML5x1Z7lQ1T3F 8o9sKrbFO1WQw1+Nc91+MU0MGN0jtfZ0Tvn/ouEZrSXCE4K3oDGtj3AdC764yZVq6CPigCgs 6Ex80k6QlzCdVP3RKsnPO2xQXXPgyJPJlpD8bHHHW7OLfoR9DaBNympfcbQJeekQrTvyoASw EOTPKE6CVWrcQIztUp0WFTdRGgMK0cZB3Xfe6sOp24PQTHAKGtjTHNP/THomkH24Fum9K3iM /4Wh4V2eqGEgpdeSp5K+LdaNyNgaqzMOtt4HYk86LYLSHfFXywdlbGrY9+TqiJ+ZVW4trmui NIJCOku8SYansq34QzYM0x3UFRwff+45zNBEVzctSnremg1mVgrzOfXU8rt+4N1b2MxorPF8 619aCwVP7U16qNSBaqiAJr4e5SNEnoAq18+1Gp8QsFG0ARY8xp+qaKBByWES7lRi3QbqAKZf yOHS6gmYo9gBmuAhc65/VtHMJtxwjpUeN4Bcs9HUpDMDVHdfeRa73wM+wY5potfQ5zkSp0Jp bxnv/cRBH6+c43stTffprd//4Hgz+nJcCgZKtCYIAPkUxABC85ID2CidzbraErVACmRoizhT KR2OiqSLW2x4xdmSiFNcIWkWJB6Qdri0Fzs2dHe8etD1HYaht1ZhZ810s7QOL7JwypO8dscN KTEkyoTGn6cWj0CX+PeP4xp8AR8ot4d0BhtUY34UPzjE1/xyrQFAdnLd0PP4wXxdIUuRs0+n WLY9Aou/vC1LAdlaGsoTVzJ2gX4fkKQIWhX0WVk41BSFeDKQ3RQ2pnuzwedLO94Bf6X0G48O VsbXrP9BZ6snXyHfebPnno/te5XRqZTL9aJOytB/1iUna+1MAwBxGFPvqeEUUyT+gx1l3Acl ZaTUOEkgIor5losDrePdPgE= Organization: Baylibre Message-ID: <11cd42bd-6b5f-f126-d53e-e06693b8000b@baylibre.com> Date: Mon, 11 Jan 2021 15:04:32 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201221181306.904272-5-martin.blumenstingl@googlemail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 21/12/2020 19:13, Martin Blumenstingl wrote: > The vendor kernel uses the following thermal-zone settings: > <= 70°C: > - CPU frequency limited to 1.488GHz > - GPU limited to 511MHz and 2 cores (pixel processors) > > <= 80°C: > - CPU frequency limited to 1.2GHz > - GPU limited to 435MHz and 2 cores (pixel processors) > > <= 90°C: > - CPU frequency limited to 0.804GHz > - GPU limited to 328MHz and 1 core (pixel processor) > > Add simplified thermal configuration which is taken from the > GXBB/GXL/GXM SoC family (which uses the same manufacturing process and > has the same maximum junction temperature of 125°C). With this the > thermal framework will try to keep the SoC temperature at or below 80°C > which is identical to the vendor kernel (with the exception of one CPU > frequency step from 1.488GHz to 1.536GHz). > > The number of GPU cores are not taken into account as this is not > supported. > > Signed-off-by: Martin Blumenstingl > --- > arch/arm/boot/dts/meson8b.dtsi | 54 ++++++++++++++++++++++++++++++++++ > 1 file changed, 54 insertions(+) > > diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi > index 2401cdf5f751..dbf7963b6c87 100644 > --- a/arch/arm/boot/dts/meson8b.dtsi > +++ b/arch/arm/boot/dts/meson8b.dtsi > @@ -10,6 +10,7 @@ > #include > #include > #include > +#include > #include "meson.dtsi" > > / { > @@ -26,6 +27,7 @@ cpu0: cpu@200 { > resets = <&clkc CLKC_RESET_CPU0_SOFT_RESET>; > operating-points-v2 = <&cpu_opp_table>; > clocks = <&clkc CLKID_CPUCLK>; > + #cooling-cells = <2>; /* min followed by max */ > }; > > cpu1: cpu@201 { > @@ -37,6 +39,7 @@ cpu1: cpu@201 { > resets = <&clkc CLKC_RESET_CPU1_SOFT_RESET>; > operating-points-v2 = <&cpu_opp_table>; > clocks = <&clkc CLKID_CPUCLK>; > + #cooling-cells = <2>; /* min followed by max */ > }; > > cpu2: cpu@202 { > @@ -48,6 +51,7 @@ cpu2: cpu@202 { > resets = <&clkc CLKC_RESET_CPU2_SOFT_RESET>; > operating-points-v2 = <&cpu_opp_table>; > clocks = <&clkc CLKID_CPUCLK>; > + #cooling-cells = <2>; /* min followed by max */ > }; > > cpu3: cpu@203 { > @@ -59,6 +63,7 @@ cpu3: cpu@203 { > resets = <&clkc CLKC_RESET_CPU3_SOFT_RESET>; > operating-points-v2 = <&cpu_opp_table>; > clocks = <&clkc CLKID_CPUCLK>; > + #cooling-cells = <2>; /* min followed by max */ > }; > }; > > @@ -167,6 +172,54 @@ hwrom@0 { > }; > }; > > + thermal-zones { > + soc { > + polling-delay-passive = <250>; /* milliseconds */ > + polling-delay = <1000>; /* milliseconds */ > + thermal-sensors = <&thermal_sensor>; > + > + cooling-maps { > + map0 { > + trip = <&soc_passive>; > + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > + }; > + > + map1 { > + trip = <&soc_hot>; > + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > + }; > + }; > + > + trips { > + soc_passive: soc-passive { > + temperature = <80000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "passive"; > + }; > + > + soc_hot: soc-hot { > + temperature = <90000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "hot"; > + }; > + > + soc_critical: soc-critical { > + temperature = <110000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "critical"; > + }; > + }; > + }; > + }; > + > mmcbus: bus@c8000000 { > compatible = "simple-bus"; > reg = <0xc8000000 0x8000>; > @@ -221,6 +274,7 @@ mali: gpu@c0000 { > clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>; > clock-names = "bus", "core"; > operating-points-v2 = <&gpu_opp_table>; > + #cooling-cells = <2>; /* min followed by max */ > }; > }; > }; /* end of / */ > Reviewed-by: Neil Armstrong