From nobody Mon Feb 9 04:14:14 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01429C7EE23 for ; Mon, 29 May 2023 14:08:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229870AbjE2OIG (ORCPT ); Mon, 29 May 2023 10:08:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229663AbjE2OHo (ORCPT ); Mon, 29 May 2023 10:07:44 -0400 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF9BDE4; Mon, 29 May 2023 07:07:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=hugovil.com ; s=x; h=Subject:Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=2DqpomnNRfiIUofIOKhW7Ekx3g5xp5pGoKMlORViQNc=; b=0IceE/ixk+iTk4GM2Ghqy9GCFm x7HX+VQupJQNuoAjxHgI7HNWI26KBA+tlvHE+0V3ioxeb6wiscB2pe2jbauEIpeA5hr8EgUu8soI1 8jatERhK7uXlgrCB91i+o6+fQVmeKPCi4nYLg14Mil14jynBgn22jyeQFYty4uoBpbzI=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:50024 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1q3dWy-0004Ht-Ro; Mon, 29 May 2023 10:07:30 -0400 From: Hugo Villeneuve To: gregkh@linuxfoundation.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, jirislaby@kernel.org, jringle@gridpoint.com, l.perczak@camlintechnologies.com, tomasz.mon@camlingroup.com Cc: linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, hugo@hugovil.com, linux-gpio@vger.kernel.org, Hugo Villeneuve Date: Mon, 29 May 2023 10:07:08 -0400 Message-Id: <20230529140711.896830-7-hugo@hugovil.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230529140711.896830-1-hugo@hugovil.com> References: <20230529140711.896830-1-hugo@hugovil.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 70.80.174.168 X-SA-Exim-Mail-From: hugo@hugovil.com Subject: [PATCH v4 6/9] dt-bindings: sc16is7xx: Add property to change GPIO function X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.hugovil.com) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Hugo Villeneuve Some variants in this series of UART controllers have GPIO pins that are shared between GPIO and modem control lines. The pin mux mode (GPIO or modem control lines) can be set for each ports (channels) supported by the variant. This adds a property to the device tree to set the GPIO pin mux to modem control lines on selected ports if needed. Signed-off-by: Hugo Villeneuve Acked-by: Conor Dooley --- .../bindings/serial/nxp,sc16is7xx.txt | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/D= ocumentation/devicetree/bindings/serial/nxp,sc16is7xx.txt index 0fa8e3e43bf8..74dfbbf7b2cb 100644 --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt @@ -23,6 +23,9 @@ Optional properties: 1 =3D active low. - irda-mode-ports: An array that lists the indices of the port that should operate in IrDA mode. +- nxp,modem-control-line-ports: An array that lists the indices of the por= t that + should have shared GPIO lines configured as + modem control lines. =20 Example: sc16is750: sc16is750@51 { @@ -35,6 +38,26 @@ Example: #gpio-cells =3D <2>; }; =20 + sc16is752: sc16is752@54 { + compatible =3D "nxp,sc16is752"; + reg =3D <0x54>; + clocks =3D <&clk20m>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports =3D <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells =3D <2>; + }; + + sc16is752: sc16is752@54 { + compatible =3D "nxp,sc16is752"; + reg =3D <0x54>; + clocks =3D <&clk20m>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports =3D <0 1>; /* Ports 0 and 1 as modem contro= l lines */ + }; + * spi as bus =20 Required properties: @@ -59,6 +82,9 @@ Optional properties: 1 =3D active low. - irda-mode-ports: An array that lists the indices of the port that should operate in IrDA mode. +- nxp,modem-control-line-ports: An array that lists the indices of the por= t that + should have shared GPIO lines configured as + modem control lines. =20 Example: sc16is750: sc16is750@0 { @@ -70,3 +96,23 @@ Example: gpio-controller; #gpio-cells =3D <2>; }; + + sc16is752: sc16is752@0 { + compatible =3D "nxp,sc16is752"; + reg =3D <0>; + clocks =3D <&clk20m>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports =3D <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells =3D <2>; + }; + + sc16is752: sc16is752@0 { + compatible =3D "nxp,sc16is752"; + reg =3D <0>; + clocks =3D <&clk20m>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports =3D <0 1>; /* Ports 0 and 1 as modem contro= l lines */ + }; --=20 2.30.2