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a="65990036" X-IronPort-AV: E=Sophos;i="6.19,249,1754982000"; d="scan'208";a="65990036" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2025 02:04:45 -0700 X-CSE-ConnectionGUID: XCuwvFI+SqK9YXh418DnrA== X-CSE-MsgGUID: +Dw2Sy/hQ4+K8k1hORJSyA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,249,1754982000"; d="scan'208";a="183709423" Received: from bkammerd-mobl.amr.corp.intel.com (HELO kuha.fi.intel.com) ([10.124.221.165]) by orviesa009.jf.intel.com with SMTP; 23 Oct 2025 02:04:35 -0700 Received: by kuha.fi.intel.com (sSMTP sendmail emulation); Thu, 23 Oct 2025 12:04:33 +0300 Date: Thu, 23 Oct 2025 12:04:33 +0300 From: Heikki Krogerus To: Chaoyi Chen Cc: Greg Kroah-Hartman , Dmitry Baryshkov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner , Sandy Huang , Andy Yan , Yubing Zhang , Frank Wang , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Amit Sunil Dhamne , Chaoyi Chen , Dragan Simic , Johan Jonker , Diederik de Haas , Peter Robinson , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH v7 1/9] usb: typec: Add notifier functions Message-ID: References: <20251023033009.90-1-kernel@airkyi.com> <20251023033009.90-2-kernel@airkyi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251023_020445_975908_BD87A534 X-CRM114-Status: GOOD ( 14.84 ) 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 On Thu, Oct 23, 2025 at 11:10:20AM +0300, Heikki Krogerus wrote: > Hi, > > > diff --git a/include/linux/usb/typec_notify.h b/include/linux/usb/typec_notify.h > > new file mode 100644 > > index 000000000000..a3f1f3b3ae47 > > --- /dev/null > > +++ b/include/linux/usb/typec_notify.h > > @@ -0,0 +1,17 @@ > > +/* SPDX-License-Identifier: GPL-2.0 */ > > + > > +#ifndef __USB_TYPEC_NOTIFY > > +#define __USB_TYPEC_NOTIFY > > + > > +#include > > + > > +enum usb_typec_event { > > + TYPEC_ALTMODE_REGISTERED > > +}; > > Don't you need to know when the altmode is removed? I noticed that you don't because drm_dp_hpd_bridge_register() is always resource managed. But I think you could still send an event also when the altmode is removed already now. That way it does not need to be separately added if and when it is needed. thanks, -- heikki