From patchwork Fri Jun 18 09:29:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 12330731 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54C39C49EA2 for ; Fri, 18 Jun 2021 09:30:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DED6613DB for ; Fri, 18 Jun 2021 09:30:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233086AbhFRJcT (ORCPT ); Fri, 18 Jun 2021 05:32:19 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:32081 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S232917AbhFRJcE (ORCPT ); Fri, 18 Jun 2021 05:32:04 -0400 X-UUID: 22c589c4345c43409fd225f74e460e64-20210618 X-UUID: 22c589c4345c43409fd225f74e460e64-20210618 Received: from mtkcas34.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 2011942669; Fri, 18 Jun 2021 17:29:48 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 18 Jun 2021 17:29:41 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 18 Jun 2021 17:29:40 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring , Felipe Balbi CC: Chunfeng Yun , Matthias Brugger , Thinh Nguyen , , , , , Subject: [PATCH v2 07/13] usb: mtu3: support property role-switch-default-mode Date: Fri, 18 Jun 2021 17:29:12 +0800 Message-ID: <1624008558-16949-8-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1624008558-16949-1-git-send-email-chunfeng.yun@mediatek.com> References: <1624008558-16949-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: D79545E54E725BAD34C23CB5EB24580A8E1A86BFB90F3AB6B73E8719333AAB8D2000:8 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Support default mode config when use usb-role-switch Signed-off-by: Chunfeng Yun --- v2: no changes --- drivers/usb/mtu3/mtu3.h | 2 ++ drivers/usb/mtu3/mtu3_dr.c | 24 ++++++++++++++++++++---- 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index 5546b868b08b..bc82c7f97ad6 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -199,6 +199,7 @@ struct mtu3_gpd_ring { * @id_nb : notifier for iddig(idpin) detection * @dr_work : work for drd mode switch, used to avoid sleep in atomic context * @desired_role : role desired to switch +* @default_role : default mode while usb role is USB_ROLE_NONE * @role_sw : use USB Role Switch to support dual-role switch, can't use * extcon at the same time, and extcon is deprecated. * @role_sw_used : true when the USB Role Switch is used. @@ -212,6 +213,7 @@ struct otg_switch_mtk { struct notifier_block id_nb; struct work_struct dr_work; enum usb_role desired_role; + enum usb_role default_role; struct usb_role_switch *role_sw; bool role_sw_used; bool is_u3_drd; diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index 318fbc618137..30e7e5fc0f88 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -137,8 +137,12 @@ static void ssusb_mode_sw_work(struct work_struct *work) current_role = ssusb->is_host ? USB_ROLE_HOST : USB_ROLE_DEVICE; - if (desired_role == USB_ROLE_NONE) + if (desired_role == USB_ROLE_NONE) { + /* the default mode is host as probe does */ desired_role = USB_ROLE_HOST; + if (otg_sx->default_role == USB_ROLE_DEVICE) + desired_role = USB_ROLE_DEVICE; + } if (current_role == desired_role) return; @@ -274,17 +278,29 @@ static int ssusb_role_sw_register(struct otg_switch_mtk *otg_sx) { struct usb_role_switch_desc role_sx_desc = { 0 }; struct ssusb_mtk *ssusb = otg_sx_to_ssusb(otg_sx); + struct device *dev = ssusb->dev; + enum usb_dr_mode mode; if (!otg_sx->role_sw_used) return 0; + mode = usb_get_role_switch_default_mode(dev); + if (mode == USB_DR_MODE_PERIPHERAL) + otg_sx->default_role = USB_ROLE_DEVICE; + else + otg_sx->default_role = USB_ROLE_HOST; + role_sx_desc.set = ssusb_role_sw_set; role_sx_desc.get = ssusb_role_sw_get; - role_sx_desc.fwnode = dev_fwnode(ssusb->dev); + role_sx_desc.fwnode = dev_fwnode(dev); role_sx_desc.driver_data = ssusb; - otg_sx->role_sw = usb_role_switch_register(ssusb->dev, &role_sx_desc); + otg_sx->role_sw = usb_role_switch_register(dev, &role_sx_desc); + if (IS_ERR(otg_sx->role_sw)) + return PTR_ERR(otg_sx->role_sw); - return PTR_ERR_OR_ZERO(otg_sx->role_sw); + ssusb_set_mode(otg_sx, otg_sx->default_role); + + return 0; } int ssusb_otg_switch_init(struct ssusb_mtk *ssusb)