From patchwork Tue Feb 27 09:02:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Macpaul Lin X-Patchwork-Id: 776412 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (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 635573D68; Tue, 27 Feb 2024 09:02:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024572; cv=none; b=PTCj2ETBuA1eFDKbpOYNx8iphj24UWTLml4yuSE9Q7SRYz9gb8o87Q028EoJCEMtKpGIRkFJEVYm9BPOqyy59SO8O+caZ/8bfF2qymG6/9OL1qL3kdHxSojVrpW2ue0g6ZaCrJASheil3ALY/OjVaX8Qt9hB9vYoPlxhqrFP/v8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709024572; c=relaxed/simple; bh=MDyB7kN9fLzkF3IUaQuVq2aN3lZtwp94JqS0ur3aaFs=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=qHmSgrSg888Zxfh9Q/be5oTVhQWGakRx2fFjl9+NtUSCigK9/c9+qQywvfiuSJ/dOTpK/OBN9DL6AxDBJ+VySIjJDkczSA5nbl6NZ2UOrCthGladAYkQMy8Zsspvq7Wc/0qk9OlGVzD6AGAWR6EY+yKaye0cel7DbvnfIQGjzmY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=WAFouEi6; arc=none smtp.client-ip=210.61.82.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="WAFouEi6" X-UUID: f4540afcd54e11eea4ad694c3f9da370-20240227 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=tmj8YPmmqvqYG5v+SWsXq/apQfPyzcxQHhDN/sTXgcQ=; b=WAFouEi6N11te0IuPXOLm7Qkrqqo6ImhICnKtq1D242RoaWBlb2dmarCmNDEuFetCup64fQY0hftU6hiXCydE550XhE72iU5tiZ2n6TA77NVTPD5typFHmA4nuSDAk8/kjTHdDoNIXHQawuA4wQS9Tx/sEExNuODCWDz/zsf8WY=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37, REQID:b09291ff-bcba-45e1-b45a-14aa6171dcbb, IP:0, U RL:25,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:20 X-CID-META: VersionHash:6f543d0, CLOUDID:e3775e84-8d4f-477b-89d2-1e3bdbef96d1, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES :1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: f4540afcd54e11eea4ad694c3f9da370-20240227 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1368438755; Tue, 27 Feb 2024 17:02:37 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 27 Feb 2024 17:02:36 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 27 Feb 2024 17:02:36 +0800 From: Macpaul Lin To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Kaehlcke , Matthias Brugger , AngeloGioacchino Del Regno , , , , , CC: Bear Wang , Pablo Sun , Macpaul Lin , Macpaul Lin , Chunfeng Yun , Yow-shin Liou , MediaTek Chromebook Upstream , Chen-Yu Tsai Subject: [PATCH 1/2] dt-bindings: usb: Add binding for TI USB8020B hub controller Date: Tue, 27 Feb 2024 17:02:27 +0800 Message-ID: <20240227090228.22156-1-macpaul.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N The TI USB8020B is a USB 3.0 hub controller with 2 ports. This initial version of the binding only describes USB related aspects of the USB8020B, it does not cover the option of connecting the controller as an i2c slave. Signed-off-by: Macpaul Lin --- .../devicetree/bindings/usb/ti,usb8020b.yaml | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ti,usb8020b.yaml diff --git a/Documentation/devicetree/bindings/usb/ti,usb8020b.yaml b/Documentation/devicetree/bindings/usb/ti,usb8020b.yaml new file mode 100644 index 000000000000..8ef117793e11 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ti,usb8020b.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ti,usb8020b.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI USB8020B USB 3.0 hub controller + +maintainers: + - Macpaul Lin + +allOf: + - $ref: usb-device.yaml# + +properties: + compatible: + enum: + - usb451,8025 + - usb451,8027 + + 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 = "usb451,8027"; + reg = <1>; + peer-hub = <&hub_3_0>; + reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>; + vdd-supply = <&usb_hub_fixed_3v3>; + }; + + /* 3.0 hub on port 2 */ + hub_3_0: hub@2 { + compatible = "usb451,8025"; + reg = <2>; + peer-hub = <&hub_2_0>; + reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>; + vdd-supply = <&usb_hub_fixed_3v3>; + }; + };