From patchwork Wed Sep 9 09:35:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 11765161 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 4F8DF746 for ; Wed, 9 Sep 2020 09:36:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28A8B21D7A for ; Wed, 9 Sep 2020 09:36:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="gbeq6VPc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730021AbgIIJfw (ORCPT ); Wed, 9 Sep 2020 05:35:52 -0400 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:58782 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729913AbgIIJfi (ORCPT ); Wed, 9 Sep 2020 05:35:38 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0899WbNI011181; Wed, 9 Sep 2020 11:35:22 +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=8Z39wgCMgSV09FjTrcLGWnULrXx4mkaAHwq5zt5eW6M=; b=gbeq6VPctr7PRcnvzs/xjGO9bZYbn/zlGkYwIRNkbjYBUVjcBjytvYI3OpXvZO0+Bye8 REpm800IET4D4wrDNTipL3QQxKX1G6Ph8kbYruuRrqZ1XVbsNbEm64vU9Cx9nnwLybmb xEgRTQ/kN/nmeKaUlrQiw8lS4+hxWPzT4FFBxjWhESGfHG/jpsra/p7Tqfwx3q8y7+MP Ec/omYK+jm5X+eEM5VPsIhweMGrK2vLA+VibrGa57UnXF2bbs/CYqXBnH2Pb5v2BuYSt nVspCq5G3HFXMQcS46QGgGvV5F1Rm9UvfF76RXJ8sjk6ceCTfj09x61Yy6G5atOF3QhC TA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 33c0euv55c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Sep 2020 11:35:22 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E653A100034; Wed, 9 Sep 2020 11:35:21 +0200 (CEST) Received: from Webmail-eu.st.com (gpxdag3node5.st.com [10.75.127.72]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id D4CBD220AE9; Wed, 9 Sep 2020 11:35:21 +0200 (CEST) Received: from localhost (10.75.127.46) by GPXDAG3NODE5.st.com (10.75.127.72) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 9 Sep 2020 11:35:21 +0200 From: Amelie Delaunay To: Minas Harutyunyan , Felipe Balbi , Greg Kroah-Hartman , Rob Herring , Maxime Coquelin , Alexandre Torgue CC: , , , , , Fabrice Gasnier , Amelie Delaunay , Martin Blumenstingl Subject: [PATCH v6 3/3] usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs Date: Wed, 9 Sep 2020 11:35:11 +0200 Message-ID: <20200909093511.4728-4-amelie.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200909093511.4728-1-amelie.delaunay@st.com> References: <20200909093511.4728-1-amelie.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG6NODE2.st.com (10.75.127.17) To GPXDAG3NODE5.st.com (10.75.127.72) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-09_03:2020-09-08,2020-09-09 signatures=0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org If usb-role-switch is present in the device tree, it means that ID and Vbus signals are not connected to the OTG controller but to an external component (GPIOs, Type-C controller). In this configuration, usb role switch is used to force valid sessions on STM32MP15 SoCs. Acked-by: Martin Blumenstingl Signed-off-by: Amelie Delaunay --- drivers/usb/dwc2/params.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index a3611cdd1dea..50df72f32b4c 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -185,7 +185,7 @@ static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg) struct dwc2_core_params *p = &hsotg->params; p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; - p->activate_stm_id_vb_detection = true; + p->activate_stm_id_vb_detection = !device_property_read_bool(hsotg->dev, "usb-role-switch"); p->host_rx_fifo_size = 440; p->host_nperio_tx_fifo_size = 256; p->host_perio_tx_fifo_size = 256;