From patchwork Thu Dec 2 14:38:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adam Ford X-Patchwork-Id: 1562751 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=UFNADGdz; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4J4dqn0hRmz9sR4 for ; Fri, 3 Dec 2021 01:38:45 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347221AbhLBOmF (ORCPT ); Thu, 2 Dec 2021 09:42:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240835AbhLBOmE (ORCPT ); Thu, 2 Dec 2021 09:42:04 -0500 Received: from mail-qv1-xf2a.google.com (mail-qv1-xf2a.google.com [IPv6:2607:f8b0:4864:20::f2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6499BC06174A; Thu, 2 Dec 2021 06:38:42 -0800 (PST) Received: by mail-qv1-xf2a.google.com with SMTP id g9so23193157qvd.2; Thu, 02 Dec 2021 06:38:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=mmZpOWwjKAj2tZZlHMc2Lc6mAWK1X55bGBiJYt8O/YY=; b=UFNADGdzIP1tzOSlAXJS5dBsEdygLoXoGH2gAHGXr6tUAp2DXsRQ2YrTrNf4JavTCm QJUFr1PLbLCFD6WzIAKwHVxADdauRqPrx1MVM+DuEcTzRqhmVjXafKaRFhxc8ppmAFhE 1TZAqDcwsDSg6loX9TIeNBZONmD/qgqXrpLT1Iij29D6PqWBQXNCc+BgaNR6s95Zv6Fv AXZo0Ay4SCp9uTF0txIpb2buhwUNK1NdrzBxpCAEwlI6tY+3U1yP+CKD9lXYK7TW8dEb RpK5BJKfPwS2Rz/8S3eI7jswX8yhIjLfkSugvPvWHhraF10pfkw/cWpFI6aLc0Z86kA5 DmAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=mmZpOWwjKAj2tZZlHMc2Lc6mAWK1X55bGBiJYt8O/YY=; b=3w+z2AkkvOKPnA/SE01i8eeglFffvV+Gc4osElraX+Jl8MIzXaaQk1DewA0nMso/rH 62EpZOnNJLDvKybiqy9R4nyrk81nLUkVQfD5nO0GFrVJ+6aUH5MrkbXGBs0TMq7lzR3p fdwSTFnMTp1qbQB1H1cfNhCXti2bQKdrLH2ldISlXpGBb5L4t5Y3v4FKIh6/7bphawls okcqJaPs7SEwoKheD+LaLiE6xVxJW9WXRL9ZmdIyvKgUFJmTyvGnm0kYrGMXWIGIC9hR hfFqUtyAL3U+y2phFuXbUTUddgvmMp0uX1PsfdLifuKzfuPjhNQ5sRP68UaEx0kokUd8 ev3g== X-Gm-Message-State: AOAM532yqAWoXGqV5cCBqgDF6hxNl/4p9AjDO0pKiMBPjSNKv1QGnAR0 QjKcVOqgCzXurVvlLjfHS+E= X-Google-Smtp-Source: ABdhPJx4Qm784WF1SxNlh/qAJfgLxdayFaefCLGeLLwUazVSRNQyW4gRt0+v8PkTYMegx5I/TZOyBQ== X-Received: by 2002:a05:6214:13d1:: with SMTP id cg17mr12801351qvb.131.1638455921297; Thu, 02 Dec 2021 06:38:41 -0800 (PST) Received: from aford-OptiPlex-7050.logicpd.com ([174.46.170.158]) by smtp.gmail.com with ESMTPSA id bp38sm21840qkb.66.2021.12.02.06.38.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 06:38:40 -0800 (PST) From: Adam Ford To: linux-arm-kernel@lists.infradead.org Cc: aford@beaconembedded.com, Adam Ford , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V6 1/2] dt-bindings: soc: imx: Add binding doc for spba bus Date: Thu, 2 Dec 2021 08:38:26 -0600 Message-Id: <20211202143828.3335-1-aford173@gmail.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add binding doc for fsl,spba-bus. Signed-off-by: Adam Ford Reviewed-by: Rob Herring --- V6: Rebase on 5.16-rc and rename spba@xxxx to spba-bus@xxxx since most dsti files use that naming convention. V5: Rebase on 5.10-rc2 to be able to check yaml Add Reg entry V4: Remove an accidental makefile change Move type:object under additional properties V3: Rebase sample from aips-bus example Split off from series adding i.MX8M Nano functions to reduce noise V2: Attempted to update yaml from feedback diff --git a/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml new file mode 100644 index 000000000000..d42dbb0bbc2e --- /dev/null +++ b/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/fsl,spba-bus.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Shared Peripherals Bus Interface + +maintainers: + - Shawn Guo + +description: | + A simple bus enabling access to shared peripherals. + + The "spba-bus" follows the "simple-bus" set of properties, as + specified in the Devicetree Specification. It is an extension of + "simple-bus" because the SDMA controller uses this compatible flag to + determine which peripherals are available to it and the range over which + the SDMA can access. There are no special clocks for the bus, because + the SDMA controller itself has its interrupt and clock assignments. + +select: + properties: + compatible: + contains: + const: fsl,spba-bus + required: + - compatible + +properties: + $nodename: + pattern: "^spba-bus(@[0-9a-f]+)?$" + + compatible: + items: + - const: fsl,spba-bus + - const: simple-bus + + '#address-cells': + enum: [ 1, 2 ] + + '#size-cells': + enum: [ 1, 2 ] + + reg: + maxItems: 1 + + ranges: true + +required: + - compatible + - '#address-cells' + - '#size-cells' + - reg + - ranges + +additionalProperties: + type: object + +examples: + - | + spba-bus@30000000 { + compatible = "fsl,spba-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x30000000 0x100000>; + ranges; + };