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([2a01:e34:ed2f:f020:ab33:6dea:825:98d]) by smtp.googlemail.com with ESMTPSA id g6sm4640444wrm.73.2021.08.14.06.42.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 14 Aug 2021 06:42:49 -0700 (PDT) Subject: Re: [PATCH 33/54] dt-bindings: thermal: Make trips node optional To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , devicetree@vger.kernel.org, Rob Herring , Frank Rowand Cc: linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, Amit Kucheria , linux-pm@vger.kernel.org, Zhang Rui References: <20210721140424.725744-1-maxime@cerno.tech> <20210721140424.725744-34-maxime@cerno.tech> From: Daniel Lezcano Message-ID: Date: Sat, 14 Aug 2021 15:42:48 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210721140424.725744-34-maxime@cerno.tech> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 21/07/2021 16:04, Maxime Ripard wrote: > Even though the previous binding made it a required child node, the > implementation in Linux never made it mandatory and just ignored thermal > zones without trip points. > > This was even effectively encouraged, since the thermal core wouldn't > allow a thermal sensor to probe without a thermal zone. > > In the case where you had a thermal device that had multiple sensors but > with enough knowledge to provide trip points for only a few of them, > this meant that the only way to make that driver probe was to provide a > thermal zone without the trips node required by the binding. > > This obviously led to a fair number of device trees doing exactly that, > making the initial binding requirement ineffective. > > Let's make it clear by dropping that requirement. > > Cc: Amit Kucheria > Cc: Daniel Lezcano > Cc: linux-pm@vger.kernel.org > Cc: Zhang Rui > Signed-off-by: Maxime Ripard Applied, thanks! -- D. -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog