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AJvYcCUklAIeJdTbLg34FfxhmWy4M0ovnx2BdiQpPx+O0cJewVm7qfBFOCvrzecP+mtTeGi+MCRz5NMZH0iC@vger.kernel.org X-Gm-Message-State: AOJu0Yw9N7XeEZIcYLSvEi1H8Dk1Js7kygHnd0wbCZnk0Sn6aO0Pq+0/ ULLKKUTaLpYDQ0mTqt7hzc+2sZJofj9pLqApUeO079z1jzsX5v4sf696VQFsNtTFsnSDiz76RDF Eq5RhvX0Mb1Xd8giwVmN01vt0u5/IJFiThzbtEN49djufTkGNv3PpKMY62Q== X-Gm-Gg: ASbGncsiV7pTsrxo/RAJwEPrc/C0Kdcfcz4iametb4FGVGrwpqXQRhIwd/1oGEfDBSZ VbEC3NevvhwG5KXpVORZOIKBVVO8VB8s4/oYo91h49eXhS4fEV/l04otxSTRVDBh/7M4asnsJl6 oN54iSonM1ZyZRU/m5pOTD6D9BbRJW+K6YY38sZ1iHFkTjyiHEgzZHuP4ApUvxJHribiqC2je9k GUPb/xogY7nB7rA3hdX9Zpqj3vx/g4La5sW7j148NsYuGEQQNNKuoZO8BND4k99d8Wz8k4= X-Google-Smtp-Source: AGHT+IE9ROGV9vhyVbxmTa2vMAt23JCQD7kyieRaGBhmqhaspo5Oa//PQBSMVno9CBAFwv1ioBpLtLzQtaaKar+Clxc= X-Received: by 2002:a05:6512:33c9:b0:595:8198:51ce with SMTP id 2adb3069b0e04-5958419e6ccmr5957940e87.15.1763506469496; Tue, 18 Nov 2025 14:54:29 -0800 (PST) Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251031160710.13343-1-antoniu.miclaus@analog.com> <20251031160710.13343-3-antoniu.miclaus@analog.com> <3ead5d7aa5e6be2b6df3bb91b35fec37e23353f3.camel@gmail.com> <0cd7cf10d47683f22a4358635f243a2dfb6be564.camel@gmail.com> In-Reply-To: <0cd7cf10d47683f22a4358635f243a2dfb6be564.camel@gmail.com> From: Linus Walleij Date: Tue, 18 Nov 2025 23:54:17 +0100 X-Gm-Features: AWmQ_bkcaZItZJt2y-mj9N0PnO4kP_ftuxcc-DBEyiPgOFYDOGAP2KTLLB6hcp0 Message-ID: Subject: Re: [PATCH 2/2] gpio: adg1712: add driver support To: =?UTF-8?B?TnVubyBTw6E=?= Cc: Antoniu Miclaus , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, Nov 11, 2025 at 5:01=E2=80=AFPM Nuno S=C3=A1 wrote: [Me] >> - Implement .set_config() and implement the generic pin >> control property PIN_CONFIG_OUTPUT_ENABLE as 1 >> to switch "on" and 0 for switch "off". >> See include/linux/pinctrl/pinconf-generic.h > The above makes sense to me. I'll let Antoniu take it from here and check= if > the above fits the usecases he is aware of. Not sure if it makes sense fo= r a piece > of HW like this but if the usecase is for userspace to control the on/off= states, > then I guess we would need .get() and .set(). Or some kind of "frontend" = driver > making use of the consumer helpers. There is already GPIO_V2_LINE_SET_CONFIG_IOCTL in so setting configs from userspace is no issue, just use the character device. You will need to add I think two new config flags for userspace: GPIO_V2_LINE_FLAG_OUTPUT_ENABLE GPIO_V2_LINE_FLAG_OUTPUT_DISABLE And update gpio_v2_line_config_flags_to_desc_flags() in drivers/gpio/gpiolib-cdev.c accordingly. Then you probably want some tests or examples in libgpiod to make sure userspace is fine. Bartosz knows all about how to do this. Yours, Linus Walleij