From patchwork Wed Jul 27 09:37:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Stein X-Patchwork-Id: 594487 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D2BAC04A68 for ; Wed, 27 Jul 2022 09:38:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231202AbiG0JiX (ORCPT ); Wed, 27 Jul 2022 05:38:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231629AbiG0JiO (ORCPT ); Wed, 27 Jul 2022 05:38:14 -0400 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8014247B9A; Wed, 27 Jul 2022 02:38:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1658914691; x=1690450691; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=OzYJ1HAiwxCqKstvTbidtou/YL9g88MGig64r0nWnVw=; b=aNeaQNmmHY29thqsSw8GOw0fDq4B7lw7J82QrtKTYrrOAh2JYmbVmL9a 7vNU9VAiS0rrx5fwKKxx+bUg3C2UdtOoj+ovqVQfPbusblPhQIXy4ryE5 37BIKQp3Z4+Y58GxCAR2gUTeDIqw9XoREOAZrfHYFC1k2qTvZOV9psKPs G1Y/YPzUAYa1Cz7qjWCYOlrK8c1i/fWZvSHVdUXFFENqyBSekxTc1D8Eo ZOD62a9MhX73woMFLEguwyQEjZbqdxX9C8OR7iN+BWs2AlQVMNXxQxvrS uRAu0J95LNl7dTu4YF3/RSwPtPKZ07l44O8JojNIUWf1y6arRUs4g5j94 w==; X-IronPort-AV: E=Sophos;i="5.93,195,1654552800"; d="scan'208";a="25289990" Received: from unknown (HELO tq-pgp-pr1.tq-net.de) ([192.168.6.15]) by mx1-pgp.tq-group.com with ESMTP; 27 Jul 2022 11:38:05 +0200 Received: from mx1.tq-group.com ([192.168.6.7]) by tq-pgp-pr1.tq-net.de (PGP Universal service); Wed, 27 Jul 2022 11:38:05 +0200 X-PGP-Universal: processed; by tq-pgp-pr1.tq-net.de on Wed, 27 Jul 2022 11:38:05 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1658914685; x=1690450685; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=OzYJ1HAiwxCqKstvTbidtou/YL9g88MGig64r0nWnVw=; b=FlSgKtPatqXzQybeO1M5i+vW3M+lts1fznYqlX/bnsNyvfB4OV0vG/gZ dvkO3dIVeqtle4Jb7OwQw4Ld6yPWTyNiXtG2SY/2mG8IoNLpXpbX2dd4r H6mczfS2/S75oqVfA3vV75nFy95v5WP8ohJ3rA4MUdM6G78zvbbyTlruz HvPiD2v7W4fnpgBDQbaezisQ8Vws835x3iHIKsjmr13KBg5l50fwYZgEO ZBs+h2KLtc22TUkSVrmMrv7jUE88HPWi5+nw5zW4gbKSrwsdzB+vifFX9 KGWaHaKEsIzdmpNiS7A/cBeuetxbWPU1qBKmO8FEIfaRQKtJxRqkporsO w==; X-IronPort-AV: E=Sophos;i="5.93,195,1654552800"; d="scan'208";a="25289987" Received: from vtuxmail01.tq-net.de ([10.115.0.20]) by mx1.tq-group.com with ESMTP; 27 Jul 2022 11:38:04 +0200 Received: from steina-w.tq-net.de (unknown [10.123.49.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by vtuxmail01.tq-net.de (Postfix) with ESMTPSA id C6C12280056; Wed, 27 Jul 2022 11:38:04 +0200 (CEST) From: Alexander Stein To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Matthias Kaehlcke Cc: Alexander Stein , linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 1/3] dt-bindings: usb: Add binding for TI USB8041 hub controller Date: Wed, 27 Jul 2022 11:37:59 +0200 Message-Id: <20220727093801.687361-1-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The TI USB8041 is a USB 3.0 hub controller with 4 ports. This initial version of the binding only describes USB related aspects of the USB8041, it does not cover the option of connecting the controller as an i2c slave. Signed-off-by: Alexander Stein --- Thanks Matthias for your review. Changes in v3: * Put myself as maintainer * Removed quotes around description Changes in v2: * Removed 'items' from compatible, it's just en enum now * Rename reset-gpio to reset-gpios * Use 'items' for reset-gpios * Adjust description of vdd-supply * Sorted required list * Adjusted example .../devicetree/bindings/usb/ti,usb8041.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ti,usb8041.yaml diff --git a/Documentation/devicetree/bindings/usb/ti,usb8041.yaml b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml new file mode 100644 index 000000000000..e04fbd8ab0b7 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ti,usb8041.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Binding for the TI USB8041 USB 3.0 hub controller + +maintainers: + - Alexander Stein + +allOf: + - $ref: usb-device.yaml# + +properties: + compatible: + enum: + - usb451,8140 + - usb451,8142 + + reg: true + + reset-gpios: + items: + - description: GPIO specifier for GRST# pin. + + vdd-supply: + description: + VDD power supply to the hub + + peer-hub: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the peer hub on the controller. + +required: + - compatible + - reg + - peer-hub + +additionalProperties: false + +examples: + - | + #include + + usb { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + /* 2.0 hub on port 1 */ + hub_2_0: hub@1 { + compatible = "usb451,8142"; + reg = <1>; + peer-hub = <&hub_3_0>; + reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>; + }; + + /* 3.0 hub on port 2 */ + hub_3_0: hub@2 { + compatible = "usb451,8140"; + reg = <2>; + peer-hub = <&hub_2_0>; + reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>; + }; + };