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bh=gpKpWcE4rirX56wK1cuA2VwU8rzHhAoRcRhE8IIu4P8=; b=JDAURPEBzqngX20RIdtqMbmfw7/J1wVHScRL52inZqhWiKjTTDlI4Epdt7hTK7aEKx34pv +j3/ybQRUfpi3tfrccUnRSkSYYudDDAmWGhBSza51KBVcZVEdUyC9zAfT/5A36dCmXFyd3 XcyPVxORq2fmWABVDN1KMBjVb3e+eMo= Message-ID: <4b8c8d8c-d2f3-4938-a451-e8e9524d40c3@ixit.cz> Date: Sun, 15 Mar 2026 18:09:14 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 08/10] dt-bindings: input: touchscreen: st,stmfts: Introduce STM FTS5 To: Dmitry Baryshkov Cc: Dmitry Torokhov , Maxime Coquelin , Alexandre Torgue , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg , Bjorn Andersson , Konrad Dybcio , Petr Hodina , linux-input@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, phone-devel@vger.kernel.org References: <20260301-stmfts5-v1-0-22c458b9ac68@ixit.cz> <20260301-stmfts5-v1-8-22c458b9ac68@ixit.cz> Content-Language: en-US From: David Heidelberg Autocrypt: addr=david@ixit.cz; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 01/03/2026 23:40, Dmitry Baryshkov wrote: [...] >> + then: >> + properties: >> + switch-gpio: >> + description: Switch between SLPI and AP mode. > > This doesn't sounds like the GPIO on the touchscreen, more like the > external schematic component. If it need sto be turned to one position, > it might be better to use GPIO hog for that. Right now yes, but the GPIO serves to switching between SLPI and AP mode at runtime, see [1] The driver lack supports for SLPI, but at moment when SLPI support lands, we should be able do something like: -> device starts, touchscreen works -> screen goes to sleep, but instead of powering off touchscreen, it switches to SLPI mode -> user taps at touchscreen, device wakes up Thus I think we need to support this GPIO in the driver. David > >> + >> + required: >> + - switch-gpio >> + >> examples: >> - | >> #include >> >> -- >> 2.51.0 >> >> > -- David Heidelberg