From nobody Mon Feb 9 15:45:27 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 10ECFC77B7A for ; Thu, 25 May 2023 04:06:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238850AbjEYEGc (ORCPT ); Thu, 25 May 2023 00:06:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238128AbjEYEEj (ORCPT ); Thu, 25 May 2023 00:04:39 -0400 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9ED1A1B9; Wed, 24 May 2023 21:04:35 -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=Rs2Mhd71JAcJq49FRqjICikz5CHJ00MgArsR2uJfUx4=; b=XelzIbRF3Xmw1UUzlUYpi6J0Wk Y4kLx4z02h5HTl6DMkCfMOLHLRJ/ciXr41mlcREvmetoDpvUGCaecOIjuw/JGvz+utekjakOXvs5F PY77DSZ39oA6Ypunb90jK64JjWarUgiLHntmizzRIpUS3TV9pfhZ2a2D0SGYDym1MltY=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:52970 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1q22DF-0001dB-OC; Thu, 25 May 2023 00:04:30 -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, tomasz.mon@camlingroup.com, l.perczak@camlintechnologies.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: Thu, 25 May 2023 00:03:21 -0400 Message-Id: <20230525040324.3773741-8-hugo@hugovil.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230525040324.3773741-1-hugo@hugovil.com> References: <20230525040324.3773741-1-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 v3 07/11] 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 --- .../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