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[78.210.255.2]) by smtp.googlemail.com with ESMTPSA id v10sm15504262wml.27.2019.06.03.23.04.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2019 23:04:18 -0700 (PDT) Subject: Re: [PATCH] dt-bindings: thermal: Make cooling-maps property optional To: Andy Tang , "rui.zhang@intel.com" , "edubezval@gmail.com" Cc: "robh+dt@kernel.org" , "mark.rutland@arm.com" , "linux-pm@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <20190515093647.47656-1-andy.tang@nxp.com> From: Daniel Lezcano Openpgp: preference=signencrypt Autocrypt: addr=daniel.lezcano@linaro.org; prefer-encrypt=mutual; keydata= mQINBFv/yykBEADDdW8RZu7iZILSf3zxq5y8YdaeyZjI/MaqgnvG/c3WjFaunoTMspeusiFE sXvtg3ehTOoyD0oFjKkHaia1Zpa1m/gnNdT/WvTveLfGA1gH+yGes2Sr53Ht8hWYZFYMZc8V 2pbSKh8wepq4g8r5YI1XUy9YbcTdj5mVrTklyGWA49NOeJz2QbfytMT3DJmk40LqwK6CCSU0 9Ed8n0a+vevmQoRZJEd3Y1qXn2XHys0F6OHCC+VLENqNNZXdZE9E+b3FFW0lk49oLTzLRNIq 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adkDXtr4MeL8BaB7Ij2oyRVjXUwhFQNKi5Z5Rve0a3zvGkkqw8Mz20BOksjSWjAF6g9byukl CUVjC03PdMSufNLK06x5hPc/c4tFR4J9cLrV+XxdCX7r0zGos9SzTPGNuIk1LK++S3EJhLFj 4eoWtNhMWc1uiTf9ENza0ntqH9XBWEQ6IA1gubCniGG+Xg== Message-ID: Date: Tue, 4 Jun 2019 08:04:16 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=gbk Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/06/2019 07:56, Andy Tang wrote: > Hi Edubezval, Rui, > > Any further comments? >From my POV, this patch makes sense. We may be interested to show up the thermal zones in sysfs and optionally mitigate them via an userspace governor. Acked-by: Daniel Lezcano >> -----Original Message----- >> From: Yuantian Tang >> Sent: 2019Äê5ÔÂ15ÈÕ 17:37 >> To: rui.zhang@intel.com; edubezval@gmail.com >> Cc: robh+dt@kernel.org; daniel.lezcano@linaro.org; mark.rutland@arm.com; >> linux-pm@vger.kernel.org; devicetree@vger.kernel.org; >> linux-kernel@vger.kernel.org; Andy Tang >> Subject: [PATCH] dt-bindings: thermal: Make cooling-maps property optional >> >> There may be no cooling device on system, or there are no enough cooling >> devices for each thermal zone in multiple thermal zone cases since cooling >> devices can't be shared. >> So make this property optional to remove such limitations. >> >> Signed-off-by: Yuantian Tang >> --- >> .../devicetree/bindings/thermal/thermal.txt | 4 ++-- >> 1 files changed, 2 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt >> b/Documentation/devicetree/bindings/thermal/thermal.txt >> index ca14ba9..694e834 100644 >> --- a/Documentation/devicetree/bindings/thermal/thermal.txt >> +++ b/Documentation/devicetree/bindings/thermal/thermal.txt >> @@ -142,11 +142,11 @@ Required properties: >> - trips: A sub-node which is a container of only trip point nodes >> Type: sub-node required to describe the thermal zone. >> >> + >> +Optional property: >> - cooling-maps: A sub-node which is a container of only cooling device >> Type: sub-node map nodes, used to describe the relation between >> trips >> and cooling devices. >> - >> -Optional property: >> - coefficients: An array of integers (one signed cell) containing >> Type: array coefficients to compose a linear relation between >> Elem size: one cell the sensors listed in the thermal-sensors property. >> -- >> 1.7.1 > -- Linaro.org ©¦ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog