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[209.132.180.67]) by mx.google.com with ESMTP id h10si2376838pgr.94.2018.03.01.04.31.39; Thu, 01 Mar 2018 04:31:55 -0800 (PST) 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; 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 S1030430AbeCAMaV convert rfc822-to-8bit (ORCPT + 99 others); Thu, 1 Mar 2018 07:30:21 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:58971 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030328AbeCAMaT (ORCPT ); Thu, 1 Mar 2018 07:30:19 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id w21CSc6V032654; Thu, 1 Mar 2018 13:29:52 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2gbwb1cmys-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 01 Mar 2018 13:29:52 +0100 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 E6C4031; Thu, 1 Mar 2018 12:29:50 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 947322B99; Thu, 1 Mar 2018 12:29:50 +0000 (GMT) Received: from SFHDAG3NODE1.st.com (10.75.127.7) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 1 Mar 2018 13:29:49 +0100 Received: from SFHDAG3NODE1.st.com ([fe80::1166:1abb:aad4:5f86]) by SFHDAG3NODE1.st.com ([fe80::1166:1abb:aad4:5f86%20]) with mapi id 15.00.1347.000; Thu, 1 Mar 2018 13:29:50 +0100 From: Bich HEMON To: Greg Kroah-Hartman , Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre TORGUE , "Jiri Slaby" , "linux-serial@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" CC: Bich HEMON Subject: [PATCH] can: m_can: select pinctrl state in each suspend/resume function Thread-Topic: [PATCH] can: m_can: select pinctrl state in each suspend/resume function Thread-Index: AQHTsVj+oIHYuI2hpUGPrP1VhQsGlA== Date: Thu, 1 Mar 2018 12:29:50 +0000 Message-ID: <1519907380-15135-1-git-send-email-bich.hemon@st.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.49] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-03-01_07:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make sure to apply the correct pin state in suspend/resume callbacks. Putting pins in sleep state saves power. Signed-off-by: Bich Hemon --- drivers/net/can/m_can/m_can.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 2594f77..a86ef69 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1700,6 +1700,8 @@ static __maybe_unused int m_can_suspend(struct device *dev) m_can_clk_stop(priv); } + pinctrl_pm_select_sleep_state(dev); + priv->can.state = CAN_STATE_SLEEPING; return 0; @@ -1710,6 +1712,8 @@ static __maybe_unused int m_can_resume(struct device *dev) struct net_device *ndev = dev_get_drvdata(dev); struct m_can_priv *priv = netdev_priv(ndev); + pinctrl_pm_select_default_state(dev); + m_can_init_ram(priv); priv->can.state = CAN_STATE_ERROR_ACTIVE; -- 1.9.1