From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB34733BBA7 for ; Fri, 27 Feb 2026 10:05:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772186725; cv=none; b=ayPgRk5erxY5B9I+tp06m9WUQcA9hW9eB6pmUrxLjDtSGMrzwQGXJZSRlG6sZGdpwoYnJlAsRTmUjwmfuT9d06MO2tpqU8iRBmX0EC108pskVwa1iKLW00jijAVDpNTQcGdULa5ho30rZQOZ4Te4A6aWlCfzyG4DfqQiVCAU6Ww= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772186725; c=relaxed/simple; bh=byKhIKAZjGddb3Nt3Z0anMMrJfpi4EDJyAA3QvmxmWA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PWjS9hujR3a8fKREQgZ2XSQwcwuLIKW4KB/BHVSSOFN+vhMrTDsEIJsVLnEc6qF1EZaR4Q0mkYJ+zET5k+3v9mK43EKUpzOgSrIfUjRUQbCsOMbm9m2aT9bQgugWGhHVOnZ8bY8drjyCYYXIJp5uNti4Kpk+3B4+yja9WIG+DdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vvuiO-0002IP-Il; Fri, 27 Feb 2026 11:04:56 +0100 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vvuiM-002sKB-1S; Fri, 27 Feb 2026 11:04:55 +0100 Received: from ore by pty.whiteo.stw.pengutronix.de with local (Exim 4.98.2) (envelope-from ) id 1vvuiN-00000008csb-2p2A; Fri, 27 Feb 2026 11:04:55 +0100 Date: Fri, 27 Feb 2026 11:04:55 +0100 From: Oleksij Rempel To: Linus Walleij Cc: Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lee Jones , Peter Rosin , kernel@pengutronix.de, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-gpio@vger.kernel.org, David Jander Subject: Re: [PATCH v1 3/8] dt-bindings: pinctrl: add NXP MC33978/MC34978 pinctrl Message-ID: References: <20260225171545.1980385-1-o.rempel@pengutronix.de> <20260225171545.1980385-4-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: devicetree@vger.kernel.org On Fri, Feb 27, 2026 at 12:00:43AM +0100, Linus Walleij wrote: > Hi Oleksij, > > thanks for your patch for this very interesting hardware! > > On Wed, Feb 25, 2026 at 6:16 PM Oleksij Rempel wrote: > > > Add device tree binding documentation for the pin control and GPIO block > > of the NXP MC33978/MC34978 Multiple Switch Detection Interface (MSDI). > > > > This block manages 22 switch detection inputs (14 Switch-to-Ground, > > 8 Programmable) and acts as a GPIO controller. > > > > Additionally, it supports pin configuration for hardware-specific features > > required for long-term contact maintenance in harsh environments, such as > > adjusting the continuous/pulsed wetting current to penetrate oxide layers > > on mechanical switches. > > > > Signed-off-by: Oleksij Rempel > > Are the hardware-specific pin configurations for oxide layer > penetration (!) and stuff excluded from these bindings? (It looks > like.) Yes, they are excluded for now. The target board is general-purpose, so the attached switches or LEDs will vary. I'd prefer to gather more concrete use cases before designing a generic interface for the wetting currents. Best Regards, Oleksij -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |