From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E30242BCF4C; Sat, 12 Sep 2026 16:04:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789229062; cv=none; b=No8xeyR8wsaAW1OLOzbeeaMNSjIz1tE6jetJGj4g1NnMtYhVSzgyjDqLtrOdOg+WmBoE+3qN0C9bDn4JewCZlb6g5nrDEzwKvannzqvYtwqMGVYjoyhlDjhL4b+9pC+IshrrJYm6OlmdUxT9n+TTQSRXBekKaT2ELec3I2HpcIY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789229062; c=relaxed/simple; bh=5QJYcCWqdCx+aOFa0ltDPDawRRRlu9pp6lIRKvztPOc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cOko9mCJQNcqIZaQ2tQxGXbXDbmw95zQCio4RT1H93kwjpomQb4OVIyXq5ckMvDtyLPKXqaUCs0v0U48Wvsbhab7trKmeYD9ZiyqotlwP0yUOdkyreduAAGI2AzZtHm/ci+vrzDxzGIuP3Gq/zICf7oRiB5+7UtLUrCQbKsWwEY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L6+kawBL; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="L6+kawBL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6CF31F000FF; Sat, 12 Sep 2026 16:04:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789229060; bh=fHL5pmYRa57zAPxFkp0aDPQ6pIq/cJsFxm46kf6EeeI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=L6+kawBL/Ni9wAevV/ygvGm6yKRZevpYlBVtx4925jW0lx2HxaT39G8oyZmTZTnDd rXh5TzRY5Ax9Q3N1x9hl51CWL+d/I+ZtYOjBDEur7ecKaJ0GnwbB1u10CedUwnmAxv 3VLdoAYb8CsIOONXRFkHgobZaNcVpV+DEzhbuA4k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benson Leung , Heikki Krogerus , Prashant Malani , Sasha Levin Subject: [PATCH 6.1 0471/1191] usb: typec: Add partner PD object wrapper Date: Sat, 12 Sep 2026 08:53:19 +0200 Message-ID: <20260912065558.812944808@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065548.086904252@linuxfoundation.org> References: <20260912065548.086904252@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Prashant Malani [ Upstream commit 032399819dd5f135e6ffe446c8e97ab54eec3464 ] Some port drivers may want to set a Type-C partner as a parent for a USB Power Delivery object, but the Type-C partner struct isn't exposed outside of the Type-C class driver. Add a wrapper to usb_power_delivery_register() which sets the provided Type-C partner as a parent to the USB PD object. This helps to avoid exposing the Type-C partner's device struct unnecessarily. Cc: Benson Leung Suggested-by: Heikki Krogerus Reviewed-by: Heikki Krogerus Signed-off-by: Prashant Malani Link: https://lore.kernel.org/r/20221122220538.2991775-2-pmalani@chromium.org Signed-off-by: Greg Kroah-Hartman Stable-dep-of: a0a8cd9fc9c4 ("platform/chrome: cros_ec_typec: Reject out-of-bounds PD cap count") Signed-off-by: Sasha Levin --- drivers/usb/typec/class.c | 19 +++++++++++++++++++ include/linux/usb/typec.h | 4 ++++ 2 files changed, 23 insertions(+) diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index a8e04beb3bc07..95a026d3a0664 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -827,6 +827,25 @@ void typec_partner_set_svdm_version(struct typec_partner *partner, } EXPORT_SYMBOL_GPL(typec_partner_set_svdm_version); +/** + * typec_partner_usb_power_delivery_register - Register Type-C partner USB Power Delivery Support + * @partner: Type-C partner device. + * @desc: Description of the USB PD contract. + * + * This routine is a wrapper around usb_power_delivery_register(). It registers + * USB Power Delivery Capabilities for a Type-C partner device. Specifically, + * it sets the Type-C partner device as a parent for the resulting USB Power Delivery object. + * + * Returns handle to struct usb_power_delivery or ERR_PTR. + */ +struct usb_power_delivery * +typec_partner_usb_power_delivery_register(struct typec_partner *partner, + struct usb_power_delivery_desc *desc) +{ + return usb_power_delivery_register(&partner->dev, desc); +} +EXPORT_SYMBOL_GPL(typec_partner_usb_power_delivery_register); + /** * typec_register_partner - Register a USB Type-C Partner * @port: The USB Type-C Port the partner is connected to diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 7751bedcae5dd..8fa781207970a 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -23,6 +23,7 @@ struct fwnode_handle; struct device; struct usb_power_delivery; +struct usb_power_delivery_desc; enum typec_port_type { TYPEC_PORT_SRC, @@ -327,6 +328,9 @@ void typec_partner_set_svdm_version(struct typec_partner *partner, enum usb_pd_svdm_ver svdm_version); int typec_get_negotiated_svdm_version(struct typec_port *port); +struct usb_power_delivery *typec_partner_usb_power_delivery_register(struct typec_partner *partner, + struct usb_power_delivery_desc *desc); + int typec_port_set_usb_power_delivery(struct typec_port *port, struct usb_power_delivery *pd); int typec_partner_set_usb_power_delivery(struct typec_partner *partner, struct usb_power_delivery *pd); -- 2.53.0