From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 5B5ECC79F80 for ; Fri, 4 Sep 2026 08:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=W3sj2cYUAVCTd2rqI36VhEFdVQ+OlkMrPyaumoKtPAY=; b=dMf5cWIqb+tyMGk5dVYELGC+VQ 2JEsKIGBN2+6ZUA7ZPJpz0VIZE+6+NgbKsNY9qOBsvOkaxmsexH4dnZTxTOg/e7Mh23ca3Y6JQ2+Y +Qhm1GAGfnkMEk9wcyLXAf8TwUwWkt0em6GWyzRSohyxE9yLFfmT11yPv1CeRlWcH4/gGtrYX2NSA oj0G6rfV/qP9VyXspyeHfPvn5J2vFT/uBZ+PayUilKqyCQ3Y8qpeA3nDieufYCJBIf7myTlDZ7xVr VO1F+82nvzOy2LfDv/bcYyE9bbbKlHvFDBFBE/H2K5MCrA4Z20uQJU9Fm8ZgGMeDgraADIyqTOpM7 OkENc37w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x2PWn-00000001QE6-3TUj; Fri, 04 Sep 2026 08:44:05 +0000 Received: from mail-pg1-x535.google.com ([2607:f8b0:4864:20::535]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x2PWl-00000001QAX-0Lai for linux-arm-kernel@lists.infradead.org; Fri, 04 Sep 2026 08:44:04 +0000 Received: by mail-pg1-x535.google.com with SMTP id 41be03b00d2f7-cc1c7364550so991890a12.1 for ; Fri, 04 Sep 2026 01:44:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1788511442; x=1789116242; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=W3sj2cYUAVCTd2rqI36VhEFdVQ+OlkMrPyaumoKtPAY=; b=a0KvA08CVP3MyiIN7NFByhrpKLCCRw3lUB3eUsUHBqdJgJHl6/6RWoSGbwLKLSPx5R UG4VImPWPoOBicBETumSb8wpldAEhoK7ADVBNv0Mvx+0QuDCqry7HVKO5OYMrL9IQd0J HHlI3xz3jbwUUaynnu+TU1LMye/H0mbitmABw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788511442; x=1789116242; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=W3sj2cYUAVCTd2rqI36VhEFdVQ+OlkMrPyaumoKtPAY=; b=rSIkUSZ5GkuKruXLurPC99YobqJ15Mo+y8jUV3FsiM/1R2mhKxaBsWCRXLlqyL4Fq1 hk5xW0k1FZEfNlEW4Qyy+LFCIwjyLt4Ay2GDKWTcnBz2oYT8SmtYNU9NQizh0X09r8wZ nkgrCbG8VFMDh3DEzG0CzLiPTvuuWOM5EkTU+Qf/ynS9xk3JdS7lDcoaxpg9QHkb3GfQ T9tKUFa0Vz6h2j8FHHSs5I59liTsiguNBOrqX594HY3GkhzKpowT+gD2NGOUspybp2O/ dGXVnA6YNQdPj62HXxo/p29o1EPbFfzCilNAeqAEggNOv91gbsg6RqH/A2xfGR8/n0Mo iwsQ== X-Forwarded-Encrypted: i=1; AKwUvBy9sfqHzW5FOXC3dicqvjUAA9pYcuPOk/JSDezunBKBZcn6TAXvykQ6QKH1vPKagyVRFyeGl4+m8xZyfO5YgorV@lists.infradead.org X-Gm-Message-State: AFuF++nTEBRE78hkQ9s6O/dyxgRSyBA8C2GK9EG++xsVySq3IE2NRHFi /WsgTodWM37vVgAyd5cIjnB4VS1ynslOdaQ4xwZTxsOSLqMA63Jsi5AnyqJP7sbM+w== X-Gm-Gg: AYBFou1Mf+Sj+2u1FKp/aVHSwdXbkcng4PKRdnAFZRQMRHf4TL7aT0Nxv7CyLWr0qGe Pw+tDUqBs875tj4+HeywLeOeXbuUHc1taMfx+Z8eJt8QcLGErL3sIbZZuUFxMBRJ5RnkP8Jjaqk oC3iLlbE6OGFYcQPdpm96eMjID7aQQX1jMkzbLHlQy/84DkikgfT6nQhgBBTfXnW5jp7h3MukG4 Cfu2cyN55dE52W6g67XVmyH6ASSkDIZ/gBA23p9MVaW5OEx9B78Y0doTv8fIjbOs9HGgl5pTkG2 VToV2a6G0VCpuy5ejNkCloxXuuvpMTh/ioADeyvMPpAPBpeBOI9ME1fA+CW6fvwlvUL/aGye7Az ljqwRBSa7sS2SQdXjkKvHX2kap4eVBh3AJ2XtvrFG/t9rLrpkma/2k84VHEulLkEV4GqRJWxcjm 8sPcX3WVKwN39KnsY1gb3wsZjFafUweQpx2fiUlxeM5RAox6EmQBFdduaTaEn3wWu6v5hwgnzZZ ohan+J2mxHaiOankqyTpGpH45/BKqjipi7SfKTCldIP X-Received: by 2002:a17:90b:4c51:b0:38e:57a3:f218 with SMTP id 98e67ed59e1d1-39b26204e5bmr5803481a91.13.1788511442063; Fri, 04 Sep 2026 01:44:02 -0700 (PDT) Received: from wenst-7875.tpe.corp.google.com ([2a00:79e0:201d:8:343:bf21:3095:9c5]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39b260fdf9asm3343538a91.9.2026.09.04.01.43.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Sep 2026 01:44:01 -0700 (PDT) From: Chen-Yu Tsai To: Bartosz Golaszewski , Greg Kroah-Hartman , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , "Rafael J. Wysocki" , Danilo Krummrich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno Cc: Wei Deng , Konrad Dybcio , Chen-Yu Tsai , linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam , Alan Stern , Bartosz Golaszewski Subject: [PATCH v8 08/16] usb: hub: Pass |struct usb_port*| to usb_port_is_power_on() Date: Fri, 4 Sep 2026 16:41:47 +0800 Message-ID: <20260904084158.1341550-9-wenst@chromium.org> X-Mailer: git-send-email 2.55.0.979.g7e5102b832-goog In-Reply-To: <20260904084158.1341550-1-wenst@chromium.org> References: <20260904084158.1341550-1-wenst@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260904_014403_131508_829D9432 X-CRM114-Status: GOOD ( 19.80 ) 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 usb_port_is_power_on() currently takes |struct usb_hub*|, but only needs it to tell if the hub/port is SuperSpeed or not. In a subsequent change, usb_port_is_power_on() needs access to a pwrseq state tracking field in |struct usb_port|. Either structure can be used to identify whether a port/hub is SuperSpeed or not, as the field in |struct usb_port| is inherited from the hub: port->is_superspeed = hub_is_superspeed(hub) Replace usb_port_is_power_on()'s |struct usb_hub*| parameter with |struct usb_port*| so a subsequent change can use it. Reviewed-by: Bartosz Golaszewski Reviewed-by: Andy Shevchenko Signed-off-by: Chen-Yu Tsai --- Changes since v3: - Adapted to move of usb_port_is_power_on() to port.c and port.h --- drivers/usb/core/hub.c | 7 ++++--- drivers/usb/core/port.c | 6 +++--- drivers/usb/core/port.h | 4 +--- 3 files changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7f58d753d77a..1b891088a653 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3294,7 +3294,7 @@ static int check_port_resume_type(struct usb_device *udev, } /* Is the device still present? */ else if (status || port_is_suspended(hub, portstatus) || - !usb_port_is_power_on(hub, portstatus)) { + !usb_port_is_power_on(port_dev, portstatus)) { if (status >= 0) status = -ENODEV; } else if (!(portstatus & USB_PORT_STAT_CONNECTION)) { @@ -3736,12 +3736,13 @@ static int wait_for_connected(struct usb_device *udev, struct usb_hub *hub, int port1, u16 *portchange, u16 *portstatus) { + struct usb_port *port_dev = hub->ports[port1 - 1]; int status = 0, delay_ms = 0; while (delay_ms < 2000) { if (status || *portstatus & USB_PORT_STAT_CONNECTION) break; - if (!usb_port_is_power_on(hub, *portstatus)) { + if (!usb_port_is_power_on(port_dev, *portstatus)) { status = -ENODEV; break; } @@ -5437,7 +5438,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, * but only if the port isn't owned by someone else. */ if (hub_is_port_power_switchable(hub) - && !usb_port_is_power_on(hub, portstatus) + && !usb_port_is_power_on(port_dev, portstatus) && !port_dev->port_owner) set_port_feature(hdev, port1, USB_PORT_FEAT_POWER); diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index b2e953f137f8..8d686d43e996 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -23,11 +23,11 @@ static int usb_port_block_power_off; static const struct attribute_group *port_dev_group[]; /* Check if a port is power on */ -int usb_port_is_power_on(struct usb_hub *hub, unsigned int portstatus) +int usb_port_is_power_on(struct usb_port *port, unsigned int portstatus) { int ret = 0; - if (hub_is_superspeed(hub->hdev)) { + if (port->is_superspeed) { if (portstatus & USB_SS_PORT_STAT_POWER) ret = 1; } else { @@ -114,7 +114,7 @@ static ssize_t disable_show(struct device *dev, } usb_hub_port_status(hub, port1, &portstatus, &unused); - disabled = !usb_port_is_power_on(hub, portstatus); + disabled = !usb_port_is_power_on(port_dev, portstatus); out_hdev_lock: usb_unlock_device(hdev); diff --git a/drivers/usb/core/port.h b/drivers/usb/core/port.h index 00f7500af336..2f4349b3ce6b 100644 --- a/drivers/usb/core/port.h +++ b/drivers/usb/core/port.h @@ -63,6 +63,4 @@ struct usb_port { #define to_usb_port(_dev) \ container_of(_dev, struct usb_port, dev) -struct usb_hub; - -int usb_port_is_power_on(struct usb_hub *hub, unsigned int portstatus); +int usb_port_is_power_on(struct usb_port *port, unsigned int portstatus); -- 2.55.0.979.g7e5102b832-goog