From patchwork Tue Dec 6 05:52:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 13065433 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 4D0A6C47090 for ; Tue, 6 Dec 2022 05:54:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Y/HfV+Nt8OVhctncZqibF6wPPGSZHiFGkK2WSZOC5oc=; b=XEreAHIZhK8xvg JF3IARYc+e1emFqW6cidsExC/FAQ5f0+yj26FLZwGn6e5AQk108rL4JJ3kcGFqdfH2G4yAXC0y2/V H/lpOIkkhENUm46XVhDoJHeovw/vQ3Nwntgtfd5081xrjOC5nisZRn7FYAhizA7TgCjsl2QaV/kB5 SDiD6PppErAWfXDEW73ujrX1BKYZifl4o5GwSldW8aHo6giS4B8ijlvQujgAKwggFgnYlxdlCEHDx JlbCrE6jqHgkzMIv0F8ZlwXVYz2/Q/UB4Q4LZPoU15gQcJsIqJewyfaISQe9LwvU8thNx0oABrLVJ Mt7mfP8IEWXyw6lVDbBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2QtP-001bJl-Vu; Tue, 06 Dec 2022 05:53:24 +0000 Received: from sender4-op-o16.zoho.com ([136.143.188.16]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p2QtM-001bHN-PG for linux-arm-kernel@lists.infradead.org; Tue, 06 Dec 2022 05:53:22 +0000 ARC-Seal: i=1; a=rsa-sha256; t=1670305995; cv=none; d=zohomail.com; s=zohoarc; b=IXR+/KxxXp9HGmlxDhlYiIY7RdIlDRqki80PPtRNA2DhfRCHGHSOpPQBPlAslwJ6rtkZQuTuyk1Nd9nObvlAjmmddKzf84hJ7v9vztEYUG16oy4/fpPJvDZa1jOPZfPt3yokeIsbKEhuGnWoynpJIdocxsxRmr+VNq/mSxmmiho= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1670305995; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=BuIw4xDgq4VV/tg/CyfdQWLefl/clo1mTq+M3vk5PqY=; b=jyL6ZUdo3zlWA8k11LtSRvoH2AQK2y0eQtysyl4cFpnkR+zmuNx5TqFZ9sRZfEUO1+ZBeLrA0yp7sT0A6pKzHHh3ZC0ahkiC3TkRUCBbB7esP0+4vVRbDhr9PNrLrhepoWqjrtvfW1bPMGBuzo6bncVvRgP3Plu9fa7r3B4dDXc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=icenowy.me; spf=pass smtp.mailfrom=uwu@icenowy.me; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1670305995; s=zmail; d=icenowy.me; i=uwu@icenowy.me; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-Id:Message-Id:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Reply-To; bh=BuIw4xDgq4VV/tg/CyfdQWLefl/clo1mTq+M3vk5PqY=; b=LOWNcfXrbnfUjGAeWSk6wCdxWeK52iK5u2oc34nP+iNuhlBe3nZxoWT1oA6MRc0i RXtMZ7rW0mTbqusodtyOZKu5ft9W8HNI/dnZrOZijVLTQHzXJyNApAnhz83LpVpqwqQ rCuJI2dsuqNVbZId3GMqtTONAlFY+YciwdOy+GP8= Received: from edelgard.fodlan.icenowy.me (120.85.99.143 [120.85.99.143]) by mx.zohomail.com with SMTPS id 1670305993579283.89111808030043; Mon, 5 Dec 2022 21:53:13 -0800 (PST) From: Icenowy Zheng To: Rob Herring , Krzysztof Kozlowski , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Greg Kroah-Hartman , Matthias Kaehlcke , Andre Przywara Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Icenowy Zheng Subject: [PATCH v3 2/6] dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller Date: Tue, 6 Dec 2022 13:52:24 +0800 Message-Id: <20221206055228.306074-3-uwu@icenowy.me> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221206055228.306074-1-uwu@icenowy.me> References: <20221206055228.306074-1-uwu@icenowy.me> MIME-Version: 1.0 X-ZohoMailClient: External X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221205_215320_908107_D4C0BD65 X-CRM114-Status: GOOD ( 12.78 ) 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 The Genesys Logic GL850G is a USB 2.0 Single TT hub controller that features 4 downstream ports, an internal 5V-to-3.3V LDO regulator (can be bypassed) and an external reset pin. Add a device tree binding for its USB protocol part. The internal LDO is not covered by this and can just be modelled as a fixed regulator. Signed-off-by: Icenowy Zheng Reviewed-by: Krzysztof Kozlowski Reviewed-by: Krzysztof Kozlowski --- Changes in v3: - Re-introduce GPIO flags. Changes in v2: - Misc fixes suggested by Krzysztof, including property descriptions, single-item "items" and fixing the example's gpio property. - Fixed $id. .../bindings/usb/genesys,gl850g.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/genesys,gl850g.yaml diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml new file mode 100644 index 000000000000..a9f831448cca --- /dev/null +++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/genesys,gl850g.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Genesys Logic GL850G USB 2.0 hub controller + +maintainers: + - Icenowy Zheng + +allOf: + - $ref: usb-device.yaml# + +properties: + compatible: + enum: + - usb5e3,608 + + reg: true + + reset-gpios: + description: GPIO controlling the RESET# pin. + + vdd-supply: + description: + the regulator that provides 3.3V core power to the hub. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include + usb { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + hub: hub@1 { + compatible = "usb5e3,608"; + reg = <1>; + reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>; + }; + };