From patchwork Fri Jun 10 10:55:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 12877464 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 A316DC433EF for ; Fri, 10 Jun 2022 11:07:24 +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=4O6hhRur1zLZuGshRfhwGNBJ9lxR1X613l4gCrIHad4=; b=FPVxO+tsLOkEb0 2Lp3G4LuWSxKgaD79+KlhLBf90eJAqjJyrMQmu7ts4nb61Z5YjTkeJavdQF87jTo9zkbgBKikNACy BPJaJjVTQk25YIKmW4sfndLKLRpNlnkrLngmkIFw5uF8uXDuPkjabNryR/OwRapaTDhTATwzaTSTi /9ejtRjBIu+/huIixiMbKSRS+LRZujV8K3EZnoq2Zky43LyNsMM/JFUiyvzRSJr3YYsiFkfYYGTil bCPY/X6I4am/ODOu75hRi68QpGsBKP3yuSRZB/MVU9QgFPbfhPUQOhw2S+wb984yQ3Ia/d31kIP3i gIblsYnHVp3UgWVg67rA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzcU2-007lBb-KP; Fri, 10 Jun 2022 11:07:18 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzcSN-007kRr-WC; Fri, 10 Jun 2022 11:05:39 +0000 X-UUID: c68842ab89c14948a180ae5042467c91-20220610 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.5,REQID:24a28d75-67c9-4c4a-a9b2-17fe97116464,OB:0,LO B:0,IP:0,URL:25,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,AC TION:release,TS:20 X-CID-META: VersionHash:2a19b09,CLOUDID:0c1168e5-2ba2-4dc1-b6c5-11feb6c769e0,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:1,File:nil ,QS:0,BEC:nil X-UUID: c68842ab89c14948a180ae5042467c91-20220610 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1227640526; Fri, 10 Jun 2022 04:05:26 -0700 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 10 Jun 2022 03:55:25 -0700 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Fri, 10 Jun 2022 18:55:23 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Fri, 10 Jun 2022 18:55:23 +0800 From: Bo-Chen Chen To: , , , , , , , , , CC: , , , , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v11 01/10] dt-bindings: mediatek,dp: Add Display Port binding Date: Fri, 10 Jun 2022 18:55:13 +0800 Message-ID: <20220610105522.13449-2-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220610105522.13449-1-rex-bc.chen@mediatek.com> References: <20220610105522.13449-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220610_040536_073487_EF63A107 X-CRM114-Status: GOOD ( 13.43 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Markus Schneider-Pargmann This controller is present on several mediatek hardware. Currently mt8195 and mt8395 have this controller without a functional difference, so only one compatible field is added. The controller can have two forms, as a normal display port and as an embedded display port. Signed-off-by: Markus Schneider-Pargmann Signed-off-by: Guillaume Ranquet [Bo-Chen: Fix reviewers' comment] Signed-off-by: Bo-Chen Chen --- .../display/mediatek/mediatek,dp.yaml | 101 ++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml new file mode 100644 index 000000000000..10f50a0dcf49 --- /dev/null +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml @@ -0,0 +1,101 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/mediatek/mediatek,dp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek Display Port Controller + +maintainers: + - Chun-Kuang Hu + - Jitao shi + +description: | + Device tree bindings for the MediaTek display port and + embedded display port controller present on some MediaTek SoCs. + +properties: + compatible: + enum: + - mediatek,mt8195-dp-tx + - mediatek,mt8195-edp-tx + + reg: + maxItems: 1 + + nvmem-cells: + maxItems: 1 + description: efuse data for display port calibration + + nvmem-cell-names: + const: dp_calibration_data + + power-domains: + maxItems: 1 + + interrupts: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Input endpoint of the controller, usually dp_intf + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Output endpoint of the controller + + required: + - port@0 + - port@1 + + max-lanes: + maxItems: 1 + description: maximum number of lanes supported by the hardware. + + max-linkrate: + maxItems: 1 + description: maximum link rate supported by the hardware and unit is MHz. + +required: + - compatible + - reg + - interrupts + - ports + - max-lanes + - max-linkrate + +additionalProperties: false + +examples: + - | + #include + #include + dp_tx@1c600000 { + compatible = "mediatek,mt8195-dp-tx"; + reg = <0x1c600000 0x8000>; + power-domains = <&spm MT8195_POWER_DOMAIN_DP_TX>; + interrupts = ; + max-lanes = /bits/ 8 <4>; + max-linkrate = /bits/ 16 <8100>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + edp_in: endpoint { + remote-endpoint = <&dp_intf0_out>; + }; + }; + port@1 { + reg = <1>; + edp_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; + };