From patchwork Tue Jun 16 14:07:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 11607637 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 17778618 for ; Tue, 16 Jun 2020 14:08:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 002B7208B8 for ; Tue, 16 Jun 2020 14:08:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="RaNeBzlQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729073AbgFPOIG (ORCPT ); Tue, 16 Jun 2020 10:08:06 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:25504 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728847AbgFPOIE (ORCPT ); Tue, 16 Jun 2020 10:08:04 -0400 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05GE45O7030455; Tue, 16 Jun 2020 16:07:30 +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=LJYExI//g55+5a1wDjNlSgrFW28VW5UqLDHBZu/uoFU=; b=RaNeBzlQZQrOroti4HfugtIDDTCamDuPJOlCMN5TE2vcdLe6ddIyl2JD1kL3Dwo7sVwF tnaYeiyLhd6bJ3ZzQVHdgt5iFM6YBJ305Ij1Ht+kAiG2fCYWWHCcIZaYlO7r+yih2r3Z PpqVHnYHuw7dsb0fSrMHTZkMLmCF3+wFN0SG4cHdau5vNz1lUobmbnfzkV71b2jlSMBq hARTry2nu9vSHMPF3giovkx3CZmz2hdy32sFv5R2NcL3y/otw9W0UN+MEiUzWPxLF+k0 6y9oSjDJs4NqoRTrtvZW8shOeiKfRSXB4ZlUDKNw82ae8HZaqbmRuorcwIXw2v/ooC3V NA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 31mkx97ufd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Jun 2020 16:07:30 +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 CADCD10002A; Tue, 16 Jun 2020 16:07:29 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id BC8202B569A; Tue, 16 Jun 2020 16:07:29 +0200 (CEST) Received: from localhost (10.75.127.46) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 16 Jun 2020 16:07:29 +0200 From: Amelie Delaunay To: Minas Harutyunyan , Felipe Balbi , Greg Kroah-Hartman , Rob Herring , Maxime Coquelin , Alexandre Torgue CC: , , , , , Fabrice Gasnier , Amelie Delaunay Subject: [PATCH 2/3] usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs Date: Tue, 16 Jun 2020 16:07:16 +0200 Message-ID: <20200616140717.28465-3-amelie.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200616140717.28465-1-amelie.delaunay@st.com> References: <20200616140717.28465-1-amelie.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG7NODE1.st.com (10.75.127.19) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-16_04:2020-06-16,2020-06-16 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 --- drivers/usb/dwc2/params.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index ce736d67c7c3..d6690ee7af01 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -183,9 +183,11 @@ static void dwc2_set_stm32mp15_fsotg_params(struct dwc2_hsotg *hsotg) static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; + struct device_node *np = hsotg->dev->of_node; p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; - p->activate_stm_id_vb_detection = true; + p->activate_stm_id_vb_detection = + !of_property_read_bool(np, "usb-role-switch"); p->host_rx_fifo_size = 440; p->host_nperio_tx_fifo_size = 256; p->host_perio_tx_fifo_size = 256;