From patchwork Tue Jul 28 07:46:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 11688609 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 1EA216C1 for ; Tue, 28 Jul 2020 07:46:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0478321D95 for ; Tue, 28 Jul 2020 07:46:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="xuFF9Azl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728017AbgG1Hqk (ORCPT ); Tue, 28 Jul 2020 03:46:40 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:29444 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727940AbgG1Hqj (ORCPT ); Tue, 28 Jul 2020 03:46:39 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 06S7cKUA018522; Tue, 28 Jul 2020 09:46:22 +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=jkhu5jd9tFTTiV5t1ZCsv9vY1OMWziyo/KQfmjyC57o=; b=xuFF9Azl4+h7KX5i6pabdTnDb7/FlwvffO8eMZxlurG3ZTMGuFzIxTJKkJs9get/03ji RcUQ1RyN6QshGkdzY9niB2KrxW+Ac+HaJ85/o6Bw6HmsKQhVHhDXBM0rMEf8EIlwkJ6n 9+I4AXSdQb3rsUqowPO6+5ABvrzFjAI3PzGP1xQS7vLWcMdOr4zWEU9A9nFLfVGfi+NY Jl8HA438CZJoUIhWV2SgatsGwGV24cQmdPqBrsYP6QREhLSPTXtBXB5u10+yD59Ii8EX w741SetDBAUzMQ4ep2hzDnsszq8ijHO524oQKCVIKXe6RB23gFdhT30JTEu/POYZ6fq2 bw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 32ga71w1cn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 28 Jul 2020 09:46:22 +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 503A6100038; Tue, 28 Jul 2020 09:46:19 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 3F90021FE93; Tue, 28 Jul 2020 09:46:19 +0200 (CEST) Received: from localhost (10.75.127.44) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 28 Jul 2020 09:46:18 +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 v5 3/3] usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs Date: Tue, 28 Jul 2020 09:46:02 +0200 Message-ID: <20200728074602.14218-4-amelie.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200728074602.14218-1-amelie.delaunay@st.com> References: <20200728074602.14218-1-amelie.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG1NODE1.st.com (10.75.127.1) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-07-28_01:2020-07-27,2020-07-28 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. Signed-off-by: Amelie Delaunay Acked-by: Martin Blumenstingl --- Changes in v5: - Use device_property_read_bool instead of of_read_property_bool --- 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;