From patchwork Thu Jun 13 13:49:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Erwan Le Ray X-Patchwork-Id: 166670 Delivered-To: patch@linaro.org Received: by 2002:ac9:2a84:0:0:0:0:0 with SMTP id p4csp797199oca; Thu, 13 Jun 2019 08:11:38 -0700 (PDT) X-Google-Smtp-Source: APXvYqxCHV1lDbjn1nCTC5jh4yp+yyBpIb32kfFwDHvgBGUxRPbesQJEsWzBwrCCeskDgZkMmiH5 X-Received: by 2002:a62:5b81:: with SMTP id p123mr94269669pfb.158.1560438697730; Thu, 13 Jun 2019 08:11:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560438697; cv=none; d=google.com; s=arc-20160816; b=v89LvEsaMe1Cm6s5Xb1+COuqWIylfBgz/KP/F9/9MESW2xYgK1wwCRWKfdNvpq9qaz qNbA7mielUm8KpfcnjF+wUx1vWS6fWbHXIFEORBrNAvEm3O91IIBHu9XJgggxsySoZQg d4AtrYz1ic3mtSksVZV1uyzBIzq9hfYoeSZEs1sDGNvus3OBfWusbN+RF1fP8fkdeJfB iNdCvD7G6g48T1TiwMV8MCp+4i2xuGVVWEYy4KfwW05mgxtHCQlyeo8BzRep9gbrJWzw uWXOGncJBmOTrJmaSmq5vaqmJSJiPVMLhb8vlpahoCaoGIqerWEzMRX4SJMOUf+X5/vc vOaA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=7dQ+9lqtmTtedvp/b3rgO/AqPLUdhqousiUICsfwmlU=; b=eMUePkkMNGsOL063tuZt6tfyyqJ3PeIXd9S1HGmwenOQWVw5NXBr7zdjEmWBYzq1AF F9WyXD9hEatfFcEW8qxgTtskCRIoKM8nakE06yknoswiqT0Iz+sr1OpEbqWGucvkEFOj el62Mn7OO75WiexB7Yfa2KDLOcPrIxk5Hhj7Ro/muItPKx/oadWIju/z4kqo5ZuOJP5A XXFKm77zYDIlJTr0ujd+wHeLefIR7Pzrc8lMJZfq99DCwpLXdEaBip6FSmVtH3MFuAVl 9EKpFN2Gz8+vODwrrQCXX2wxOzpjKedarcTRGszKKgq0gUWzlvI1q4lEtdwoOlb75PZZ tg7w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=ijH4AZve; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 61si3428590plr.368.2019.06.13.08.11.37; Thu, 13 Jun 2019 08:11:37 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=ijH4AZve; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388055AbfFMPLg (ORCPT + 25 others); Thu, 13 Jun 2019 11:11:36 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:48770 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732294AbfFMNuf (ORCPT ); Thu, 13 Jun 2019 09:50:35 -0400 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x5DDkxYm019850; Thu, 13 Jun 2019 15:50:22 +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=7dQ+9lqtmTtedvp/b3rgO/AqPLUdhqousiUICsfwmlU=; b=ijH4AZveed8r4NRn2xYB5nDS0pakBJfLjvIf0GqKUmFnV/7y+itrFb9RfIPwRF9a3sA1 CRawx/Ss7DilL/8/TriOLtNJRsBGOvkirJquY7FdK907Ctabg73A+xw9rf4C7LW+7RAt eyGHhz6CAlJvEtQgYYxR09sKR2NoQgLRPsaSFOdjTx1z4YTpE8BVVQvtDz+Frp310hHJ 1/oatkRyxqaKhX9PUb/CLU1KxRYKzf6PCOAoowWF0DwSoI37XrMgzSAhHDYGItgAWEpE vE3rVEzkS0P3QKLxpVcnfkGE1/tVpvF6fu/KPAYJ3X5Z1/1p2lTHbw7Qmru+EK0Rpxs5 sA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2t2gxec01t-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 13 Jun 2019 15:50:22 +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 588373F; Thu, 13 Jun 2019 13:50:21 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3C5A02BC0; Thu, 13 Jun 2019 13:50:21 +0000 (GMT) Received: from SAFEX1HUBCAS22.st.com (10.75.90.93) by SAFEX1HUBCAS23.st.com (10.75.90.46) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 13 Jun 2019 15:50:20 +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 15:50:20 +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 07/10] ARM: dts: stm32: update uart4 pin configurations for low power Date: Thu, 13 Jun 2019 15:49:57 +0200 Message-ID: <1560433800-12255-8-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 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 Currently, pinctrl states defines only one "sleep" configuration for pins, no matter the possible uart low power modes (Rx pin always kept active). Sleep pin configuration is refined for low power modes: - "sleep" (no wakeup & console suspend enabled): put pins in analog state to optimize power - "idle" (wakeup capability): keep Rx pin in alternate function - "default" state remains untouched, to be used while the UART is active or in case the no_console_suspend mode is enabled Signed-off-by: Bich Hemon Signed-off-by: Erwan Le Ray -- 1.9.1 diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi index 85c417d..2e1ab1b 100644 --- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi @@ -599,6 +599,23 @@ bias-disable; }; }; + + uart4_idle_pins_a: uart4-idle-0 { + pins1 { + pinmux = ; /* UART4_TX */ + }; + pins2 { + pinmux = ; /* UART4_RX */ + bias-disable; + }; + }; + + uart4_sleep_pins_a: uart4-sleep-0 { + pins { + pinmux = , /* UART4_TX */ + ; /* UART4_RX */ + }; + }; }; pinctrl_z: pin-controller-z@54004000 {