From patchwork Wed Jun 7 14:05:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 104540 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp243849vqr; Wed, 7 Jun 2023 07:32:24 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7gfAN0zZZv69TKHdi68x4D7qYwg5Grre/ZEJ/5Xuw24XrRu2fmWL2TDehR1iW9jmMCnWZL X-Received: by 2002:a17:902:7b95:b0:1b2:2c0c:d3fa with SMTP id w21-20020a1709027b9500b001b22c0cd3famr2246283pll.9.1686148344064; Wed, 07 Jun 2023 07:32:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686148344; cv=none; d=google.com; s=arc-20160816; b=OuDdi9ruDvn5W6EZl8X238y78W5T1f7QZe7howGTo0d/Gn4EriRDNFhUvsskPrQ2XY eKPno2jduBNFWzXaYgY+yjLeK7TjCRUuTJtPkG1iH2Hx1F/izVqpZk+wWllukQnb0OZG AST8KHLA42so6gNlMnk6RqPwqts5Vc6n8npLp4mAT6Atm7ndc+8deMOUtud0mIz3iNqR eEAZHARNLQmxCVlTJjfOcie4L9NM7U3Ilv55l2e5L6hxGyMvrDcCQVJe3jZV2Lw4QIsi XcySvm0yKc/3/QfuKvHF570y4uXyr6JnOGs0WhkRFEmKpnBXcP7JUy8O03X8X0dI5DAp SF0Q== 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=SuJQI5JxUPzY+H5j7N6gL+Df0hCmvZbTgQvKUtpTEpg=; b=cAB07Pp5mnHb0s3Ux9mSSJWMwfV5iS1YbLhR44yN/rZrqDubvS5WI02WmIK//03u28 KZ4rjyFdlU52KUQXuFniT4T0DqNog4x+x+GrJ5G/By2hl6NLDOQRwCuhUIs3orqseXxZ g+S9ZRe9jS6UR2kdZaz61hu/uekTKSKSeEcS38N3AymwLYcojv+KRKvTbAGKHnJCXjca lOiCRjLgukBMF8Fsyu+gHI9ssDHptETwaj2fP8uwAQXXjhYBpi/TQVBWafMGZr40Psog pKhSjVo/59dLwoZiT6bWmNW3srgXYDVWSptmL+Qao4zudOnq7n225sqK4aDKVPLZJAcm ae3Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b=lxFwyIRP; 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 ij9-20020a170902ab4900b001b0732ccd7dsi8861888plb.391.2023.06.07.07.32.10; Wed, 07 Jun 2023 07:32:24 -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=lxFwyIRP; 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 S240851AbjFGOFw (ORCPT + 99 others); Wed, 7 Jun 2023 10:05:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40950 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240205AbjFGOFs (ORCPT ); Wed, 7 Jun 2023 10:05:48 -0400 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7B561BEC; Wed, 7 Jun 2023 07:05:45 -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=SuJQI5JxUPzY+H5j7N6gL+Df0hCmvZbTgQvKUtpTEpg=; b=lxFwyIRPR7jlhJYI5I55AmpVI1 gAMwRwqqutMusoc4NIPYpZbkF1M26ebBw0gEUOSlQxlavN6C7bxU5cOTEd7hCHI8o00GfO90E4QDV vu9EaHRkeqC3GfkHlFFtY6ls+SYXM9rkdsxoUkfZf+ktJOZuHTQak0VeOU+9cQtAGVoU=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:57832 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1q6tn9-0005dF-1m; Wed, 07 Jun 2023 10:05:39 -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, jesse.sung@canonical.com, isaac.true@canonical.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 , stable@vger.kernel.org, Conor Dooley , Lech Perczak Date: Wed, 7 Jun 2023 10:05:19 -0400 Message-Id: <20230607140525.833982-6-hugo@hugovil.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230607140525.833982-1-hugo@hugovil.com> References: <20230607140525.833982-1-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,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Subject: [PATCH v8 05/10] 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?1768054686237229693?= X-GMAIL-MSGID: =?utf-8?q?1768054686237229693?= 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. Cc: # 6.1.x Signed-off-by: Hugo Villeneuve Acked-by: Conor Dooley Reviewed-by: Lech Perczak --- .../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..1a7e4bff0456 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@53 { + compatible = "nxp,sc16is752"; + reg = <0x53>; + 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@1 { + compatible = "nxp,sc16is752"; + reg = <1>; + 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@2 { + compatible = "nxp,sc16is752"; + reg = <2>; + 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 */ + };