From patchwork Fri Nov 10 05:45:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?U3RhbmxleSBDaGFuZ1vmmIzogrLlvrdd?= X-Patchwork-Id: 163954 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b129:0:b0:403:3b70:6f57 with SMTP id q9csp1341817vqs; Fri, 10 Nov 2023 11:40:15 -0800 (PST) X-Google-Smtp-Source: AGHT+IGbJUBJJf14fioFBX/VqeMsI0DiHkDxOml4gS9GoqdJpzjgTIbKOFkJIe9JXIjGQPOQIU31 X-Received: by 2002:a05:6a21:35c4:b0:175:7085:ba18 with SMTP id ba4-20020a056a2135c400b001757085ba18mr55950pzc.58.1699645215412; Fri, 10 Nov 2023 11:40:15 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1699645215; cv=none; d=google.com; s=arc-20160816; b=k+wHjfg7q0nYBlMhdV1JdzuY1cjanZ3r7P7f7/DtOloQ99meqKlzdbUFiEZAFCp28a h0Zan3ddWUO/KKxXFHTzVG/oaK3IrFt6GC+eXU5ogEvgeP2GCkmNW61FLrdM0IP12L+s SaDOkqCoUh+SBl8Z8MmthapThX25vRsNXNdV+eCyaSHNUXGDvFPIYd3wnys+ynTJw+vn X0AXuoxpX4jdRUyBl5p/GG6/0BtCNTyN9xsFUaXeogB20F9gza1uKnBFsizZ9hM/co+9 ykkoJ7ICplCGVYlh9MzfSTa1FunraoCYJuMj5qFd2aqPtZZrmySn9ezmWQ71amPi/dCX mnmQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=msV+jVphVZdpFQWgY3Dm+WH37/nyhB7JE7JVJxSfq3E=; fh=qTyy6g1c6aI8vM2DZ2OQ5kAxbj8d6+wHidXpwFnhTJU=; b=HhZxavwhve2W3ahTkd9w4i/ZiFI1HMCnS9Au3aMg3kmikZcxj+WY+DpRPHggQs9oct CVQTMQyzCLamEBvq9O+kjGhjF3dc0Z75sAHdxClk6V5RpduW0a/Dx8lb+a5hG5iuAq+1 xasRPjBcaoT4MZvglMDfItWWjvOZXwltoBodweATUyfm6TEKwxxxudjQxs9pYopzlGzr qQhbHVb+AlZmVCpWctpAjQwdbWnv29nprLtGcbs6ttpX64MwUYdmNqPwRjh8QKRYOrTM cpsbuq4LSBVIQyLoqWvbvGUbK/eEsxIHSd+5fTgUaKzPPfrbQ8OVcI+5LKREcyq2T8Us tVSQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. [23.128.96.37]) by mx.google.com with ESMTPS id ob18-20020a17090b391200b0027ce5205f94si226998pjb.150.2023.11.10.11.40.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Nov 2023 11:40:15 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 74B8083CFF65; Fri, 10 Nov 2023 11:40:14 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346263AbjKJTkE (ORCPT + 29 others); Fri, 10 Nov 2023 14:40:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235741AbjKJTjm (ORCPT ); Fri, 10 Nov 2023 14:39:42 -0500 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2BD55257; Thu, 9 Nov 2023 22:14:23 -0800 (PST) X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 3AA5lcGvB2065647, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 3AA5lcGvB2065647 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 10 Nov 2023 13:47:38 +0800 Received: from RTEXMBS02.realtek.com.tw (172.21.6.95) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.17; Fri, 10 Nov 2023 13:47:38 +0800 Received: from RTEXH36505.realtek.com.tw (172.21.6.25) by RTEXMBS02.realtek.com.tw (172.21.6.95) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Fri, 10 Nov 2023 13:47:38 +0800 Received: from localhost.localdomain (172.21.252.101) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server id 15.1.2375.32 via Frontend Transport; Fri, 10 Nov 2023 13:47:38 +0800 From: Stanley Chang To: Greg Kroah-Hartman CC: Stanley Chang , Vinod Koul , Johan Hovold , Kishon Vijay Abraham I , Geert Uytterhoeven , Jinjie Ruan , Rob Herring , Alan Stern , Yang Yingliang , Flavio Suligoi , Roy Luo , "Heikki Krogerus" , =?utf-8?q?Ricardo_Ca?= =?utf-8?q?=C3=B1uelo?= , , , Subject: [PATCH v3 1/4] phy: core: add notify_connect and notify_disconnect callback Date: Fri, 10 Nov 2023 13:45:12 +0800 Message-ID: <20231110054738.23515-1-stanley_chang@realtek.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 X-KSE-ServerInfo: RTEXMBS02.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Fri, 10 Nov 2023 11:40:14 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782207181689372884 X-GMAIL-MSGID: 1782207181689372884 In Realtek SoC, the parameter of usb phy is designed to can dynamic tuning base on port status. Therefore, add a notify callback of phy driver when usb connection/disconnection change. Signed-off-by: Stanley Chang --- v1 to v2: No change v2 to v3: No change --- drivers/phy/phy-core.c | 47 +++++++++++++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 18 ++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 96a0b1e111f3..a84ad4896b7f 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -489,6 +489,53 @@ int phy_calibrate(struct phy *phy) } EXPORT_SYMBOL_GPL(phy_calibrate); +/** + * phy_notify_connect() - phy connect notify + * @phy: the phy returned by phy_get() + * @port: the port index for connect + * + * If phy need the get connection status, the callback can be used. + * Returns: %0 if successful, a negative error code otherwise + */ +int phy_notify_connect(struct phy *phy, int port) +{ + int ret; + + if (!phy || !phy->ops->connect) + return 0; + + mutex_lock(&phy->mutex); + ret = phy->ops->connect(phy, port); + mutex_unlock(&phy->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_notify_connect); + +/** + * phy_notify_disconnect() - phy disconnect notify + * @phy: the phy returned by phy_get() + * @port: the port index for disconnect + * + * If phy need the get disconnection status, the callback can be used. + * + * Returns: %0 if successful, a negative error code otherwise + */ +int phy_notify_disconnect(struct phy *phy, int port) +{ + int ret; + + if (!phy || !phy->ops->disconnect) + return 0; + + mutex_lock(&phy->mutex); + ret = phy->ops->disconnect(phy, port); + mutex_unlock(&phy->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_notify_disconnect); + /** * phy_configure() - Changes the phy parameters * @phy: the phy returned by phy_get() diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index f6d607ef0e80..cf98cb29ddaa 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -122,6 +122,8 @@ struct phy_ops { union phy_configure_opts *opts); int (*reset)(struct phy *phy); int (*calibrate)(struct phy *phy); + int (*connect)(struct phy *phy, int port); + int (*disconnect)(struct phy *phy, int port); void (*release)(struct phy *phy); struct module *owner; }; @@ -243,6 +245,8 @@ static inline enum phy_mode phy_get_mode(struct phy *phy) } int phy_reset(struct phy *phy); int phy_calibrate(struct phy *phy); +int phy_notify_connect(struct phy *phy, int port); +int phy_notify_disconnect(struct phy *phy, int port); static inline int phy_get_bus_width(struct phy *phy) { return phy->attrs.bus_width; @@ -396,6 +400,20 @@ static inline int phy_calibrate(struct phy *phy) return -ENOSYS; } +static inline int phy_notify_connect(struct phy *phy, int index) +{ + if (!phy) + return 0; + return -ENOSYS; +} + +static inline int phy_notify_disconnect(struct phy *phy, int index) +{ + if (!phy) + return 0; + return -ENOSYS; +} + static inline int phy_configure(struct phy *phy, union phy_configure_opts *opts) {