From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B0A7C31E45 for ; Thu, 13 Jun 2019 15:12:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 02B0120896 for ; Thu, 13 Jun 2019 15:12:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="WIoDnfwT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733043AbfFMPMG (ORCPT ); Thu, 13 Jun 2019 11:12:06 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:21666 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732291AbfFMNub (ORCPT ); Thu, 13 Jun 2019 09:50:31 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x5DDlO4w027701; Thu, 13 Jun 2019 15:50:15 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=Psif9qopZgVPe8dWo9XocFzMybtKO3gMouXdNYlMSBI=; b=WIoDnfwT2Lvl5uka5QWoFdeeNPZ8oP5D+fSpCiLpQo+CZTFie4V1i/ds6flvxctfD3bt gjMy0/+VEx8OfkjzhrlUEeH7VPZ2zSKPs16TJ5gdyLu94+bZREimLhgEu8jaQEGlTaT+ NE9CKsRRaA0NW4qHeUZBO/fEDFxKHQW0BQ6OfzD0bBX66di2q88gu4Uh4VNXrL3OH+y5 XyQn8fv3w7fvZgm3Ji5Z7eu3f9elrRdc2uYKp10PQZD260O9VikoFhw4/2ZgMZTC5WOF /mR/IbyxnA51uD+v5+q7VE/qgS3neJQTQHSd8PEGphh7o1wUoJij1EyvMeAkM8Ba58xh SQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2t2f8c49a3-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 13 Jun 2019 15:50:15 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id CE9F73D; Thu, 13 Jun 2019 13:50:14 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas24.st.com [10.75.90.94]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 736032BC2; Thu, 13 Jun 2019 13:50:14 +0000 (GMT) Received: from SAFEX1HUBCAS22.st.com (10.75.90.93) by Safex1hubcas24.st.com (10.75.90.94) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 13 Jun 2019 15:50:14 +0200 Received: from localhost (10.201.23.31) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 13 Jun 2019 15:50:13 +0200 From: Erwan Le Ray To: Greg Kroah-Hartman , Jiri Slaby , Maxime Coquelin , "Alexandre Torgue" , Rob Herring , "Mark Rutland" CC: , , , , , Erwan Le Ray , "Fabrice Gasnier" , Bich Hemon Subject: [PATCH v3 02/10] dt-bindings: serial: add optional pinctrl states Date: Thu, 13 Jun 2019 15:49:52 +0200 Message-ID: <1560433800-12255-3-git-send-email-erwan.leray@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1560433800-12255-1-git-send-email-erwan.leray@st.com> References: <1560433800-12255-1-git-send-email-erwan.leray@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.201.23.31] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-06-13_08:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bich Hemon Add options for pinctrl states: - "sleep" for low power - "idle" for low power and wakeup capabilities enabled - "no_console_suspend" for enabling console messages in low power Signed-off-by: Bich Hemon Signed-off-by: Erwan Le Ray diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt index 5ec80c1..64a5ea9 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -13,7 +13,14 @@ Required properties: - clocks: The input clock of the USART instance Optional properties: -- pinctrl: The reference on the pins configuration +- pinctrl-names: Set to "default". An additional "sleep" state can be defined + to set pins in sleep state when in low power. In case the device is used as + a wakeup source, "idle" state is defined in order to keep RX pin active. + For a console device, an optional state "no_console_suspend" can be defined + to enable console messages during suspend. Typically, "no_console_suspend" and + "default" states can refer to the same pin configuration. +- pinctrl-n: Phandle(s) pointing to pin configuration nodes. + For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt - st,hw-flow-ctrl: bool flag to enable hardware flow control. - rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low, linux,rs485-enabled-at-boot-time: see rs485.txt. @@ -31,8 +38,11 @@ usart4: serial@40004c00 { reg = <0x40004c00 0x400>; interrupts = <52>; clocks = <&clk_pclk1>; - pinctrl-names = "default"; + pinctrl-names = "default", "sleep", "idle", "no_console_suspend"; pinctrl-0 = <&pinctrl_usart4>; + pinctrl-1 = <&pinctrl_usart4_sleep>; + pinctrl-2 = <&pinctrl_usart4_idle>; + pinctrl-3 = <&pinctrl_usart4>; }; usart2: serial@40004400 { -- 1.9.1