From patchwork Wed Sep 16 09:39:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 312285 Delivered-To: patch@linaro.org Received: by 2002:a92:5ad1:0:0:0:0:0 with SMTP id b78csp287242ilg; Wed, 16 Sep 2020 02:39:38 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz4Z8Rlf+LKQmJrtCERoVlz9fMx+/azuNYqK9VS7PJrNLY61MyD2vb7r1284pStB1cTSOOD X-Received: by 2002:a17:906:9604:: with SMTP id s4mr25317182ejx.182.1600249178827; Wed, 16 Sep 2020 02:39:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1600249178; cv=none; d=google.com; s=arc-20160816; b=Ne2ZikrnDyE7J31JnYcliX30tcD1k+im7kbdbi16qxEAnBgEfhMyNGihkbRs0WI9pX AaopP+cq4lUTALA+vgf7aztJjSRxsOp6510CzQq9fI0cw7ya1Wi9k0tdvL3HmDPKCv4+ cLPgopw8zfIED9Q5bX160J9Oca/fjaiNXzNcsSjAbPa39YbbDMW96ZtPqshIswV2t+3h 7ddVYQWHBcMVCjQ+YDN2/nl8peXPcNFiNee4ntziQDsTvX0upwCsu8UhNUyyarvUvo8I OWVil6AXTr7P9HkTy79jjZrlfZhdtUQRQbejyxZrU6KdZqd+I3wUUIlyf4NcezAhsLTy S9zg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=nr0Ojg9qAm8OgCLg703zoT+O4V7LKzhMDlCC3KmmLNg=; b=yupk2BHSkM1xGXGpQAx75s8nOeu9G+w6l7II+ZXhOfSOeMUC/G1YmbR1vs5Qs/wtTL eMtl/+ZiOWutcr6mWx5j0N90SVLJIob0AeH9ZQDXP2hq/kL206o18V2ZQVHyAO8Xy3Rl W4X52ZdYDot2jmPYCTMIhF6x89qFXScbl1PvNk0TjuC0/kUUu89WDf+dK5vi96lWwaEh sE3s9qV//I3GwFMV6z5i9oz2hkrlMInXg5b45eG52h6AIRRqanUrSzjEyBhJxHLZ1yyA HTWnGfQ6kYQGkMpnOHlx+iniK/k5GC0Q1pLHab0U5CrX32+P7ZS0te9p87F+HAwluKZk sDqg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=QFPsiDrS; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id v13si12282834edi.95.2020.09.16.02.39.38; Wed, 16 Sep 2020 02:39:38 -0700 (PDT) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=QFPsiDrS; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726701AbgIPJjh (ORCPT + 6 others); Wed, 16 Sep 2020 05:39:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726392AbgIPJje (ORCPT ); Wed, 16 Sep 2020 05:39:34 -0400 Received: from mail-pj1-x1041.google.com (mail-pj1-x1041.google.com [IPv6:2607:f8b0:4864:20::1041]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E709BC06174A for ; Wed, 16 Sep 2020 02:39:33 -0700 (PDT) Received: by mail-pj1-x1041.google.com with SMTP id a9so1299889pjg.1 for ; Wed, 16 Sep 2020 02:39:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nr0Ojg9qAm8OgCLg703zoT+O4V7LKzhMDlCC3KmmLNg=; b=QFPsiDrSq996so456fe2hEy11ROjrzTSirvXwjTWUbB0rEdhiOQjI4tomWcFP1Xg9L wxALwetR6UBN1FADOof61gUOubuN37oHzcfBGT/7gxfQhV7KK1Lp9OIAbhfChlO3vqqi qbgqRORkRCbuqi4TQXDSldkr7LqKe6XtkVOk2TA+OD0GW6ZdXEyXZfOAYMq1VcwspbOC oW7lKgxY7+AUKbunAGXu3qbC37aFxZYuvE5QfYj3S8hY0uiTPtsfX+FuCSaZcn8eFKk7 IBX0NrbdEGQSGpDW5PxC+zXSV5Lasqu3e/n28ruFiaahhr/kOTIloZz9SPCDpwoi8JOy omgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nr0Ojg9qAm8OgCLg703zoT+O4V7LKzhMDlCC3KmmLNg=; b=e0Q6KODEz4SZ2ePlpuJ+06ENFHeKUHWusUs45+PhdIcwQCyCCQObFajnIfM0is+Lqv /G7K9tRK/jxHMC0nE24Ieo2vU5zaA9uQDIV8GYOeIrc+7XKom5UJbWxkNBCtz1+HkhaT e7rzrhSmXnCauOvhpVz+dFcoOAJjTQRev4PAoA4LqElnYGbX998zPunUJe76q3e4oH0v Ovf+RzvDNQ0yzRnFDw+g3n8nTYvi71LYtR1CPLJX0UD3L1fPrI2ET5tHxuKMQix8Ki3y YHgminsBTuQjesQxxCJenjkNGjbSUxeBbtyywBuY2G1aquLIgUXkmUpPK3sVzuBaSEtX 9NPA== X-Gm-Message-State: AOAM530KCwMEw0RhkzGTSGjnhBuvCUspFWj6NkiRIEQ9k64kCQ9PB5C2 uJCWN48UYWu9MBEQBSSuVrhPWg== X-Received: by 2002:a17:902:ea8b:b029:d1:7ed9:55c6 with SMTP id x11-20020a170902ea8bb02900d17ed955c6mr22671038plb.19.1600249173383; Wed, 16 Sep 2020 02:39:33 -0700 (PDT) Received: from localhost ([122.181.54.133]) by smtp.gmail.com with ESMTPSA id i8sm2069029pjv.43.2020.09.16.02.39.31 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 Sep 2020 02:39:32 -0700 (PDT) From: Viresh Kumar To: Rob Herring , Jassi Brar , Jassi Brar Cc: Viresh Kumar , Vincent Guittot , Arnd Bergmann , Frank Rowand , Bjorn Andersson , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V4 1/2] dt-bindings: mailbox : arm, mhu: Convert to Json-schema Date: Wed, 16 Sep 2020 15:09:17 +0530 Message-Id: <3874de094d193a08624a00a35067a3237e0b42b1.1600249102.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 2.25.0.rc1.19.g042ed3e048af MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Convert the DT binding over to Json-schema. Signed-off-by: Viresh Kumar --- V4: - Dual license - improved description for interrupts .../devicetree/bindings/mailbox/arm,mhu.yaml | 87 +++++++++++++++++++ .../devicetree/bindings/mailbox/arm-mhu.txt | 43 --------- 2 files changed, 87 insertions(+), 43 deletions(-) create mode 100644 Documentation/devicetree/bindings/mailbox/arm,mhu.yaml delete mode 100644 Documentation/devicetree/bindings/mailbox/arm-mhu.txt -- 2.25.0.rc1.19.g042ed3e048af Reviewed-by: Rob Herring diff --git a/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml b/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml new file mode 100644 index 000000000000..2c8df7979c22 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/arm,mhu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM MHU Mailbox Controller + +maintainers: + - Jassi Brar + +description: | + The ARM's Message-Handling-Unit (MHU) is a mailbox controller that has 3 + independent channels/links to communicate with remote processor(s). MHU links + are hardwired on a platform. A link raises interrupt for any received data. + However, there is no specified way of knowing if the sent data has been read + by the remote. This driver assumes the sender polls STAT register and the + remote clears it after having read the data. The last channel is specified to + be a 'Secure' resource, hence can't be used by Linux running NS. + +# We need a select here so we don't match all nodes with 'arm,primecell' +select: + properties: + compatible: + contains: + const: arm,mhu + required: + - compatible + +properties: + compatible: + items: + - const: arm,mhu + - const: arm,primecell + + reg: + maxItems: 1 + + interrupts: + items: + - description: low-priority non-secure + - description: high-priority non-secure + - description: Secure + maxItems: 3 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: apb_pclk + + '#mbox-cells': + description: Index of the channel. + const: 1 + +required: + - compatible + - reg + - interrupts + - '#mbox-cells' + +additionalProperties: false + +examples: + - | + soc { + #address-cells = <2>; + #size-cells = <2>; + + mhuA: mailbox@2b1f0000 { + #mbox-cells = <1>; + compatible = "arm,mhu", "arm,primecell"; + reg = <0 0x2b1f0000 0 0x1000>; + interrupts = <0 36 4>, /* LP-NonSecure */ + <0 35 4>, /* HP-NonSecure */ + <0 37 4>; /* Secure */ + clocks = <&clock 0 2 1>; + clock-names = "apb_pclk"; + }; + + mhu_client_scb: scb@2e000000 { + compatible = "fujitsu,mb86s70-scb-1.0"; + reg = <0 0x2e000000 0 0x4000>; + mboxes = <&mhuA 1>; /* HP-NonSecure */ + }; + }; diff --git a/Documentation/devicetree/bindings/mailbox/arm-mhu.txt b/Documentation/devicetree/bindings/mailbox/arm-mhu.txt deleted file mode 100644 index 4971f03f0b33..000000000000 --- a/Documentation/devicetree/bindings/mailbox/arm-mhu.txt +++ /dev/null @@ -1,43 +0,0 @@ -ARM MHU Mailbox Driver -====================== - -The ARM's Message-Handling-Unit (MHU) is a mailbox controller that has -3 independent channels/links to communicate with remote processor(s). - MHU links are hardwired on a platform. A link raises interrupt for any -received data. However, there is no specified way of knowing if the sent -data has been read by the remote. This driver assumes the sender polls -STAT register and the remote clears it after having read the data. -The last channel is specified to be a 'Secure' resource, hence can't be -used by Linux running NS. - -Mailbox Device Node: -==================== - -Required properties: --------------------- -- compatible: Shall be "arm,mhu" & "arm,primecell" -- reg: Contains the mailbox register address range (base - address and length) -- #mbox-cells Shall be 1 - the index of the channel needed. -- interrupts: Contains the interrupt information corresponding to - each of the 3 links of MHU. - -Example: --------- - - mhu: mailbox@2b1f0000 { - #mbox-cells = <1>; - compatible = "arm,mhu", "arm,primecell"; - reg = <0 0x2b1f0000 0x1000>; - interrupts = <0 36 4>, /* LP-NonSecure */ - <0 35 4>, /* HP-NonSecure */ - <0 37 4>; /* Secure */ - clocks = <&clock 0 2 1>; - clock-names = "apb_pclk"; - }; - - mhu_client: scb@2e000000 { - compatible = "fujitsu,mb86s70-scb-1.0"; - reg = <0 0x2e000000 0x4000>; - mboxes = <&mhu 1>; /* HP-NonSecure */ - };