From patchwork Tue May 21 08:47:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claire Chang X-Patchwork-Id: 10953175 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 977E116C1 for ; Tue, 21 May 2019 08:47:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 880022896F for ; Tue, 21 May 2019 08:47:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7C02A2899B; Tue, 21 May 2019 08:47:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2831A2896F for ; Tue, 21 May 2019 08:47:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=l3aC73g+vuhruQftNgxL7XpkILlsO7UROJlNHOm/t2Y=; b=Cfe8GMACCaljgV q1R9a9vuyuTCwspFrQNByzD8v5qNUp0G5Oo6OBxkry1cokIgrTg199Es6qBlRBiN9LwtXh16ivy/j wTU/6gXCGqxjjknN1hePF1K78AaBeltncFYvf2/APZ0gMsgsEczKISINNebqs5XoPE7nkR4yNF3AI x4xe20A959h/yIX+VTa8M+vUzBG7lH0nvTTfyNw2pe/l5DIC63JOS0/Txf94Zan6TUJiVMRpO/MyF zDklnp5w6IuFrrVzj0EhsT90CFno3PprcUUPbQyYm8IWzA90EtB7gQtdaSSlyqoDNAD623TES3iL1 IREJQEnbQRQocRN5D8HQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hT0QU-0000Mz-Nz; Tue, 21 May 2019 08:47:14 +0000 Received: from mail-pl1-x643.google.com ([2607:f8b0:4864:20::643]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hT0QR-0000LJ-NG for linux-mediatek@lists.infradead.org; Tue, 21 May 2019 08:47:13 +0000 Received: by mail-pl1-x643.google.com with SMTP id p15so8107986pll.4 for ; Tue, 21 May 2019 01:47:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LbIYnI/VuFFwbv+frc2rDwm8FqsGAeYyQ+Gv4X0pQVU=; b=jlU8vfwtVbFsFAM5HrN4A5L8ttaVJnpkZPW1FwGn5/oJ46YAf7UzRd7ClUbD5vXRBF F9XUgnEXMtYgr0yhrCW5gIoaQPWHe72/BdSpCbj6R83h9DcTzg8Lxr1m6sm7CFaYDAlt Q5XGE6xeZCCVfSjHBqWvkjm5urquxV/IJomMo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LbIYnI/VuFFwbv+frc2rDwm8FqsGAeYyQ+Gv4X0pQVU=; b=eg6pm3OHzgLERxxh5fAHEjx3Yg3NedRTcFjEUQ0c15zkiExTFkzLhGwMbNaL4Q3of1 n18tRUFHcDPVt5lo+VIWnMetHZVA35JOiJIvd+SjJALNRtsXhordXgOSWP4AIenq6os5 WA/pUIeQnCGZNte4evjy2kP/fF7nRKPjT91vC5o2KnNF5RmtyEPsdaK3LXh/U9KxKde6 hZzAK9+PuXl2LSbT2QhmtXl4DzY5B0DfRMjewBMA6t5VuqFNhzwze4uxW3NKE8IgF747 e1Xx43qLZn9FvwZdXNjxYXZah1DL5SgX1SmdKWRk/fWj4UirZLPk5tL6TNu6E37LPQ2O IJZw== X-Gm-Message-State: APjAAAWMo71URv+C8VV6zEw60OlKgpEpOPkdGT/TD7nVGG+57xd8M4QA Ts/GV4l0bHUb3X7uwUmgG3sgU0LsPYpn8g== X-Google-Smtp-Source: APXvYqwOpDMi3QE0eZKeh6+ut9rvIQ0mpck24ub50PPYm9NBbXzYBOqc/YYsdqI00D3J4MVkUKYjVA== X-Received: by 2002:a17:902:18a:: with SMTP id b10mr55469413plb.277.1558428431205; Tue, 21 May 2019 01:47:11 -0700 (PDT) Received: from localhost ([2401:fa00:1:10:3db2:76bf:938b:be05]) by smtp.gmail.com with ESMTPSA id s24sm24304839pfe.57.2019.05.21.01.47.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 May 2019 01:47:10 -0700 (PDT) From: Claire Chang To: gregkh@linuxfoundation.org Subject: [PATCH 1/2] dt-bindings: serial: add documentation for Rx in-band wakeup support Date: Tue, 21 May 2019 16:47:00 +0800 Message-Id: <20190521084701.100179-2-tientzu@chromium.org> X-Mailer: git-send-email 2.21.0.1020.gf2820cf01a-goog In-Reply-To: <20190521084701.100179-1-tientzu@chromium.org> References: <20190521084701.100179-1-tientzu@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190521_014711_755433_02C3B0E9 X-CRM114-Status: GOOD ( 10.19 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Claire Chang , linux-mediatek@lists.infradead.org, linux-serial@vger.kernel.org, changqi.hu@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Claire Chang --- .../devicetree/bindings/serial/mtk-uart.txt | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/serial/mtk-uart.txt b/Documentation/devicetree/bindings/serial/mtk-uart.txt index c6b5262eb352..11966de2a4b3 100644 --- a/Documentation/devicetree/bindings/serial/mtk-uart.txt +++ b/Documentation/devicetree/bindings/serial/mtk-uart.txt @@ -23,7 +23,12 @@ Required properties: - reg: The base address of the UART register bank. -- interrupts: A single interrupt specifier. +- interrupts or interrupts-extended: + index 0: an interrupt specifier for the UART controller itself + index 1: optional, an interrupt specifier with edge sensitivity on Rx pin to + support Rx in-band wake up. If one would like to use this feature, + one must create an addtional pinctrl to reconfigure Rx pin to normal + GPIO before suspend. - clocks : Must contain an entry for each entry in clock-names. See ../clocks/clock-bindings.txt for details. @@ -39,7 +44,11 @@ Example: uart0: serial@11006000 { compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart"; reg = <0x11006000 0x400>; - interrupts = ; + interrupts-extended = <&sysirq GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>, + <&gpio 121 IRQ_TYPE_EDGE_FALLING>; clocks = <&uart_clk>, <&bus_clk>; clock-names = "baud", "bus"; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&uart_pin>; + pinctrl-1 = <&uart_pin_sleep>; };