From patchwork Wed May 17 15:07:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 95376 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp1237272vqo; Wed, 17 May 2023 08:51:06 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4MNLVd9YDoNoMCDpgF1aYRJk7h2Ud2BWdeHWSLU61Y4AxSWNMwgd+KdYRofMgKHy1r0q1T X-Received: by 2002:a05:6a00:2185:b0:63d:2c2f:e3a2 with SMTP id h5-20020a056a00218500b0063d2c2fe3a2mr147254pfi.18.1684338665836; Wed, 17 May 2023 08:51:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684338665; cv=none; d=google.com; s=arc-20160816; b=W1cabsaQw/1+N0Wjihm7H01F5r9s3Ut1B8cxBzYTqp9p0NLiYZl3kJqoz4MIulFE9E SFxwbnVg22nl/e0CEcSgRCZ/l1NlvE13AzydU0Yem8oXFIgAemvKno9TPCENhCChsUfA Ghyp5Sn1K6UwFkS6u8khqdpDzMPg+icKZeEa2YzXXKePeq7t5oC9uw9lO9CCZQqayrGb 1mqEdMGU4Dn+l6tUI49KKu7kM5gZ2uBIisweEV7XG/UBhaIOtfA7U/5sK53MT+1tBJiy GVCq2nS2pHA94kPztX0yfnrCLeAxzsbDeHMvCKKLW30fuaeOKKtYXPZXcq+kZ7Ey5Fk5 RUaw== 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 :message-id:date:cc:to:from:dkim-signature; bh=IDRJwtLsO/yeHBOhvU39bxW+bfvC/DJiGxuwhVpGSJI=; b=PVIjbmdYsqvhwzFjXltt+Jwn6wtXlynvn9oPeuw2krv55VXlX3rxh0iui+elK+8d0y SAbbLN5q0O3+oDV5gBqK5t4eoHbJkp3wWo29gaf8YR6TS4YQjomFBIRWYq/X7KIYMn83 GpCf/Ur8geOTVCd0O2Ob/ve+ZpBf4+qqW33mW6kj7pDVwKm0w1iIoPgz2A5NlHOUP/YS O0K702DDCgnwjSDfgj6Sth3X4aJERVT0LuwIF3j8ywzjhVcPRKilo+nKhUAKQ1rC6U7h 1fR0OTQEbCmmHb6v31h9Lnc6svMKu6S0RK4m/7J9Xh33Nbx4Vb4h6ckXhkaIeVTmeims syxg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b=L72JGwLZ; 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 x24-20020a63db58000000b00528c16e927dsi21803818pgi.22.2023.05.17.08.50.52; Wed, 17 May 2023 08:51:05 -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=L72JGwLZ; 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 S231175AbjEQPqf (ORCPT + 99 others); Wed, 17 May 2023 11:46:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229572AbjEQPqd (ORCPT ); Wed, 17 May 2023 11:46:33 -0400 X-Greylist: delayed 2218 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 17 May 2023 08:46:30 PDT Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07848558B; Wed, 17 May 2023 08:46:29 -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: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:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=IDRJwtLsO/yeHBOhvU39bxW+bfvC/DJiGxuwhVpGSJI=; b=L 72JGwLZ0CrNmH62H4XitVMSAiKLvB3sUcq9nYXl1a5dZnNwCSf/oTYOWWZL2eGdDgNXtrLmCgyyHh 5q/7HgvpsAkUynIPxSStqmKtzbi7GVodVJDEIWY7jLyya5lEez0iOLOvKPsUn5he8gmCAstPhI3mq Aogs2YJY4Tl4AmKE=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:45486 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1pzIkw-0007IE-6L; Wed, 17 May 2023 11:07:59 -0400 From: Hugo Villeneuve To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: hugo@hugovil.com, linux-gpio@vger.kernel.org, Hugo Villeneuve , linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 17 May 2023 11:07:46 -0400 Message-Id: <20230517150746.3823249-1-hugo@hugovil.com> X-Mailer: git-send-email 2.30.2 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 1/2] 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?1766157100598786104?= X-GMAIL-MSGID: =?utf-8?q?1766157100598786104?= 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 | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt index 0fa8e3e43bf8..426b7285ad50 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. +- 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 +38,17 @@ Example: #gpio-cells = <2>; }; + sc16is752: sc16is752@54 { + compatible = "nxp,sc16is752"; + reg = <0x54>; + clocks = <&clk20m>; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_EDGE_FALLING>; + modem-control-line-ports = <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells = <2>; + }; + * spi as bus Required properties: @@ -59,6 +73,9 @@ Optional properties: 1 = active low. - irda-mode-ports: An array that lists the indices of the port that should operate in IrDA mode. +- 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 +87,14 @@ 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>; + modem-control-line-ports = <1>; /* Port 1 as modem control lines */ + gpio-controller; /* Port 0 as GPIOs */ + #gpio-cells = <2>; + };