From patchwork Tue Jun 8 07:57:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 12305595 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=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 8D159C4743F for ; Tue, 8 Jun 2021 08:00:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 55E8661287 for ; Tue, 8 Jun 2021 08:00:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 55E8661287 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qsPEmJWVs668S0vwUNnV4K+gPNfJ0NYJNOW/DcxuWPQ=; b=KNS3BGqOT5vvgO m6NEhqTmmM6G/P6KV1w4FUxFU6FiBj5NyqvFZOgb+8vfKdrEmvZGCcDjK/p8ZtasO+U3lsrL0FFt6 gbFyDcsRHc6cupEeGrUUbib2/GFdwv1JGrEnKxZdy38uepEyRbIgweVBDL4EA/vxzPvji+Oe17sWx aPWr6avvUyxij9UfMXZ2HuCy8KvebozSiegSWMedPDmXm9iqhnhu8djoCgYWebuKAczTkdNO0aVdD JGcKpB/LS6zTBGl7BhmuNM9L9TNp7+XPt+wNBbp7yfoTu1hlaNE/YN75Njf8KhKaY1fHDMktDXBej 6o7pTP/x23hhx7BvRLJw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqWdg-006tzO-MH; Tue, 08 Jun 2021 07:59:08 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqWck-006tXm-DC; Tue, 08 Jun 2021 07:58:12 +0000 X-UUID: 3ab5d879dbaf4482b7d625484e218848-20210608 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=6E/V1pqdmfvvIX8d4x5nuUtzLctZ+c4gY2sbDCZ0cco=; b=rkJPwjFHyelcUjzzb3qxLolr5DVfSdaiBAcGJOvPV5j3nz/onOYbjmO6vt8e36btLzivxTRdtuaA2f9vi9zBakVXrF0FLJBPqU/HiLCv1V4V5FfU+ZiKtSXZztp3yKgss5m/KyXq/3FGGnGQKmEz7oC0/w9ekCxSYUuO/JmUM7M=; X-UUID: 3ab5d879dbaf4482b7d625484e218848-20210608 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 356529443; Tue, 08 Jun 2021 00:58:07 -0700 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 00:58:05 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 8 Jun 2021 15:58:04 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 8 Jun 2021 15:58:03 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring , Felipe Balbi CC: Chunfeng Yun , Matthias Brugger , Thinh Nguyen , , , , , , Yuwen Ng , Eddie Hung Subject: [PATCH 08/23] usb: mtu3: drop support vbus detection Date: Tue, 8 Jun 2021 15:57:34 +0800 Message-ID: <1623139069-8173-9-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> References: <1623139069-8173-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210608_005810_480013_1C7A4936 X-CRM114-Status: GOOD ( 16.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Until now it's never used on any platform, and will not used later. Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3.h | 7 ------ drivers/usb/mtu3/mtu3_dr.c | 50 ++------------------------------------ 2 files changed, 2 insertions(+), 55 deletions(-) diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index 531b9c78d7c3..df2856782426 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -192,10 +192,6 @@ struct mtu3_gpd_ring { /** * @vbus: vbus 5V used by host mode * @edev: external connector used to detect vbus and iddig changes -* @vbus_nb: notifier for vbus detection -* @vbus_work : work of vbus detection notifier, used to avoid sleep in -* notifier callback which is atomic context -* @vbus_event : event of vbus detecion notifier * @id_nb : notifier for iddig(idpin) detection * @id_work : work of iddig detection notifier * @id_event : event of iddig detecion notifier @@ -209,9 +205,6 @@ struct mtu3_gpd_ring { struct otg_switch_mtk { struct regulator *vbus; struct extcon_dev *edev; - struct notifier_block vbus_nb; - struct work_struct vbus_work; - unsigned long vbus_event; struct notifier_block id_nb; struct work_struct id_work; unsigned long id_event; diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c index 82301001f2f6..89ad448f2b2d 100644 --- a/drivers/usb/mtu3/mtu3_dr.c +++ b/drivers/usb/mtu3/mtu3_dr.c @@ -147,10 +147,6 @@ int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on) return 0; } -/* - * switch to host: -> MTU3_VBUS_OFF --> MTU3_ID_GROUND - * switch to device: -> MTU3_ID_FLOAT --> MTU3_VBUS_VALID - */ static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, enum mtu3_vbus_id_state status) { @@ -163,6 +159,7 @@ static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, switch (status) { case MTU3_ID_GROUND: + mtu3_stop(mtu); switch_port_to_host(ssusb); ssusb_set_vbus(otg_sx, 1); ssusb->is_host = true; @@ -171,11 +168,6 @@ static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, ssusb->is_host = false; ssusb_set_vbus(otg_sx, 0); switch_port_to_device(ssusb); - break; - case MTU3_VBUS_OFF: - mtu3_stop(mtu); - break; - case MTU3_VBUS_VALID: mtu3_start(mtu); break; default: @@ -194,17 +186,6 @@ static void ssusb_id_work(struct work_struct *work) ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); } -static void ssusb_vbus_work(struct work_struct *work) -{ - struct otg_switch_mtk *otg_sx = - container_of(work, struct otg_switch_mtk, vbus_work); - - if (otg_sx->vbus_event) - ssusb_set_mailbox(otg_sx, MTU3_VBUS_VALID); - else - ssusb_set_mailbox(otg_sx, MTU3_VBUS_OFF); -} - /* * @ssusb_id_notifier is called in atomic context, but @ssusb_set_mailbox * may sleep, so use work queue here @@ -221,18 +202,6 @@ static int ssusb_id_notifier(struct notifier_block *nb, return NOTIFY_DONE; } -static int ssusb_vbus_notifier(struct notifier_block *nb, - unsigned long event, void *ptr) -{ - struct otg_switch_mtk *otg_sx = - container_of(nb, struct otg_switch_mtk, vbus_nb); - - otg_sx->vbus_event = event; - schedule_work(&otg_sx->vbus_work); - - return NOTIFY_DONE; -} - static int ssusb_extcon_register(struct otg_switch_mtk *otg_sx) { struct ssusb_mtk *ssusb = @@ -244,14 +213,6 @@ static int ssusb_extcon_register(struct otg_switch_mtk *otg_sx) if (!edev) return 0; - otg_sx->vbus_nb.notifier_call = ssusb_vbus_notifier; - ret = devm_extcon_register_notifier(ssusb->dev, edev, EXTCON_USB, - &otg_sx->vbus_nb); - if (ret < 0) { - dev_err(ssusb->dev, "failed to register notifier for USB\n"); - return ret; - } - otg_sx->id_nb.notifier_call = ssusb_id_notifier; ret = devm_extcon_register_notifier(ssusb->dev, edev, EXTCON_USB_HOST, &otg_sx->id_nb); @@ -260,15 +221,12 @@ static int ssusb_extcon_register(struct otg_switch_mtk *otg_sx) return ret; } - dev_dbg(ssusb->dev, "EXTCON_USB: %d, EXTCON_USB_HOST: %d\n", - extcon_get_state(edev, EXTCON_USB), + dev_dbg(ssusb->dev, "EXTCON_USB_HOST: %d\n", extcon_get_state(edev, EXTCON_USB_HOST)); /* default as host, switch to device mode if needed */ if (extcon_get_state(edev, EXTCON_USB_HOST) == false) ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); - if (extcon_get_state(edev, EXTCON_USB) == true) - ssusb_set_mailbox(otg_sx, MTU3_VBUS_VALID); return 0; } @@ -285,12 +243,10 @@ void ssusb_mode_switch(struct ssusb_mtk *ssusb, int to_host) if (to_host) { ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST); - ssusb_set_mailbox(otg_sx, MTU3_VBUS_OFF); ssusb_set_mailbox(otg_sx, MTU3_ID_GROUND); } else { ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_DEVICE); ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT); - ssusb_set_mailbox(otg_sx, MTU3_VBUS_VALID); } } @@ -365,7 +321,6 @@ int ssusb_otg_switch_init(struct ssusb_mtk *ssusb) int ret = 0; INIT_WORK(&otg_sx->id_work, ssusb_id_work); - INIT_WORK(&otg_sx->vbus_work, ssusb_vbus_work); if (otg_sx->manual_drd_enabled) ssusb_dr_debugfs_init(ssusb); @@ -382,6 +337,5 @@ void ssusb_otg_switch_exit(struct ssusb_mtk *ssusb) struct otg_switch_mtk *otg_sx = &ssusb->otg_switch; cancel_work_sync(&otg_sx->id_work); - cancel_work_sync(&otg_sx->vbus_work); usb_role_switch_unregister(otg_sx->role_sw); }