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X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [40.107.6.98 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.6.98 listed in wl.mailspike.net] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Greg Kroah-Hartman , Sascha Hauer , linux-kernel@vger.kernel.org, Philippe Schenker , NXP Linux Team , Pengutronix Kernel Team , Fabio Estevam , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The Toradex Colibri iMX6ULL board has a special USB hardware design. With runtime-pm enabled USB reset itself continuously. Furthermore the OTG port is also not enumerating devices if the Chipidea IP is in runtime sleep mode and a device or host gets plugged in. This patch adds the opportunity to disable Runtime Power Management from devicetree Signed-off-by: Philippe Schenker Signed-off-by: Li Jun Signed-off-by: Vipul Kumar Signed-off-by: Srikanth Krishnakar Signed-off-by: Li Jun Signed-off-by: Li Jun --- Changes in v2: - Change commit message to tell the use case for Colibri iMX6ULL drivers/usb/chipidea/ci_hdrc_imx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 5ae16368a0c7..5078d0695eb7 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -434,6 +434,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) usb_phy_init(pdata.usb_phy); } + if (of_property_read_bool(np, "disable-runtime-pm")) + pdata.flags &= ~CI_HDRC_SUPPORTS_RUNTIME_PM; + if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) data->supports_runtime_pm = true; From patchwork Tue Jul 14 15:18:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Schenker X-Patchwork-Id: 11663101 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D10C722 for ; 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Tue, 14 Jul 2020 15:18:39 +0000 From: Philippe Schenker To: Rob Herring , devicetree@vger.kernel.org, linux-usb@vger.kernel.org, Peter Chen , Shawn Guo Subject: [PATCH v2 3/3] ARM: dts: colibri-imx6ull: disable runtime pm Date: Tue, 14 Jul 2020 17:18:22 +0200 Message-Id: <20200714151822.250783-3-philippe.schenker@toradex.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200714151822.250783-1-philippe.schenker@toradex.com> References: <20200714151822.250783-1-philippe.schenker@toradex.com> X-ClientProxiedBy: GV0P278CA0019.CHEP278.PROD.OUTLOOK.COM (2603:10a6:710:28::6) To AM6PR05MB6120.eurprd05.prod.outlook.com (2603:10a6:20b:a8::25) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from philippe-pc.toradex.int (31.10.206.124) by GV0P278CA0019.CHEP278.PROD.OUTLOOK.COM (2603:10a6:710:28::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3195.17 via Frontend Transport; Tue, 14 Jul 2020 15:18:38 +0000 X-Mailer: git-send-email 2.27.0 X-Originating-IP: [31.10.206.124] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 444b7346-4b33-4c4b-7ecc-08d828092f7c X-MS-TrafficTypeDiagnostic: AM6PR05MB5174: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2276; 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X-Spam-Score: -0.9 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [40.107.6.113 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.6.113 listed in wl.mailspike.net] 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sascha Hauer , linux-kernel@vger.kernel.org, Philippe Schenker , NXP Linux Team , Pengutronix Kernel Team , Fabio Estevam , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The Colibri iMX6ULL has a somewhat special hardware design due to some legacy decisions regarding USB OTG. This leads to different issues when runtime PM is enabled. Disable runtime power management on colibri-imx6ull USB. Signed-off-by: Philippe Schenker --- Changes in v2: None arch/arm/boot/dts/imx6ull-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/imx6ull-colibri.dtsi b/arch/arm/boot/dts/imx6ull-colibri.dtsi index 9145c536d71a..1c6692237506 100644 --- a/arch/arm/boot/dts/imx6ull-colibri.dtsi +++ b/arch/arm/boot/dts/imx6ull-colibri.dtsi @@ -195,6 +195,7 @@ &uart5 { }; &usbotg1 { + disable-runtime-pm; dr_mode = "otg"; srp-disable; hnp-disable; @@ -202,6 +203,7 @@ &usbotg1 { }; &usbotg2 { + disable-runtime-pm; dr_mode = "host"; };