From patchwork Mon May 29 14:07:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 100300 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp1545886vqr; Mon, 29 May 2023 07:13:42 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6gl4OQSmvXNcvpwhNl8Fy5mOHofPWNbQDzQRhzQeRMV+9yakXCnoMfjfap/RgxtiCT10kp X-Received: by 2002:a05:6a20:4406:b0:105:53:991 with SMTP id ce6-20020a056a20440600b0010500530991mr11161922pzb.0.1685369622519; Mon, 29 May 2023 07:13:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1685369622; cv=none; d=google.com; s=arc-20160816; b=PqjRmc42UK6y7TXOdcujxC+K87gcG/U1WRZujeM+1eTv8pt59OmBjFFIbD9gN1l4vS 2ZnX87+SPRLnloOmAPc+VrXhpDvV+OEZJwwAFyPHXn/a/CENB73rkEMV4/7l1YJQNt4K K3KYgFXyK0rSntuhnwlUXq++RrsXCX9smsqvKkkKWItuGzAZrPWD8B/a5B7UgGkY96Jy b0ydOgAlqi01TzOGOj3n3aJPXeqAliCv9HUMWEFwFi7c6QgG+9umQOfYVnrvylKbzOX8 H1X87qLlS30n4UVBCTuyWHcSzIqoXKOPrYW8EufC/y/xOopAE3tUVLe9mlqCzr0QUCoj MKKQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:subject:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:cc:to:from:dkim-signature; bh=2DqpomnNRfiIUofIOKhW7Ekx3g5xp5pGoKMlORViQNc=; b=ffn+HKZea6ucJzrSBFP0uKM13F31TDe/Y+cC1tnaGTC35mPCwUN0HeaOOk33lqy3F8 Wl+I1Oqa7hsV8xarcHMVy99g+DjLa958x4m1yxi9b376RQVx/DsL5Z4oRqexmncLegH4 EmkpHc6PqoHG4hQgjBp2tICO6CicYoF4X4fnJRBdZPQaz13t6Gcld6/BwkR9PUS2WJiZ Gki+KP4Dg72MdOqU7u1oSby24ibpQ2Uqr7ZVu54Fkq/RjTOu4vv6ddzTbgyhxzBuGqB+ rqJ8VlT8Cq1IGhUW4cLrHv2sr336xfrfusKNg5CgKyB5QSSzdwBQdZjVZOIUSeHNdsv3 7C6A== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b="0IceE/ix"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id k7-20020a635607000000b0053028c29b4dsi8385688pgb.92.2023.05.29.07.13.30; Mon, 29 May 2023 07:13:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b="0IceE/ix"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230356AbjE2OIF (ORCPT + 99 others); Mon, 29 May 2023 10:08:05 -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 X-SA-Exim-Connect-IP: 70.80.174.168 X-SA-Exim-Mail-From: hugo@hugovil.com X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 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 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767238136934177227?= X-GMAIL-MSGID: =?utf-8?q?1767238136934177227?= 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/Documentation/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 = 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 port that + should have shared GPIO lines configured as + modem control lines. Example: sc16is750: sc16is750@51 { @@ -35,6 +38,26 @@ Example: #gpio-cells = <2>; }; + sc16is752: sc16is752@54 { + compatible = "nxp,sc16is752"; + reg = <0x54>; + clocks = <&clk20m>; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells = <2>; + }; + + sc16is752: sc16is752@54 { + compatible = "nxp,sc16is752"; + reg = <0x54>; + clocks = <&clk20m>; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */ + }; + * spi as bus Required properties: @@ -59,6 +82,9 @@ Optional properties: 1 = 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 port that + should have shared GPIO lines configured as + modem control lines. Example: sc16is750: sc16is750@0 { @@ -70,3 +96,23 @@ Example: gpio-controller; #gpio-cells = <2>; }; + + sc16is752: sc16is752@0 { + compatible = "nxp,sc16is752"; + reg = <0>; + clocks = <&clk20m>; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells = <2>; + }; + + sc16is752: sc16is752@0 { + compatible = "nxp,sc16is752"; + reg = <0>; + clocks = <&clk20m>; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_EDGE_FALLING>; + nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */ + };