From patchwork Thu Jul 11 09:21:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 11039501 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E629714DB for ; Thu, 11 Jul 2019 09:36:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D30402873C for ; Thu, 11 Jul 2019 09:36:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C62B7288E2; Thu, 11 Jul 2019 09:36:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 63D992873C for ; Thu, 11 Jul 2019 09:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WVhsBQCWF6FJ8Ojii/tibvZPT5HmJrYo5zQ0G9bVh4I=; b=lCdt6uxhG6i4mY wkvu/FvVVmMbZZElYWSyCRquTdV21udPe4Jh2sN40yGbMPFRDwTSCqtYElpPIchUAN5Ibf3kSm9EO 0U23ubSYu6paZMldKxAfatbXzxExBAAqeolZm+9zjs2YzrOSfzPKWxf2ZbTxgrAWin9FooBjldZXo mexZQmTswsweFmaaTpEc2KtCCudwk7tSfnysulozdI0Na39O6TC+DHzH4nnYJh2XPuJeqNhzV/6h1 4cLTZZvAp5jAPYN15QMBaJwinCEE5jAAQZqfzpjyoyeHll50kUgHecpVlcBEKvbNZDnCfY6zeZ+1q YqAotdrf1XAkbJ/WUoqA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hlVVI-0000qb-9K; Thu, 11 Jul 2019 09:36:40 +0000 Received: from relay6-d.mail.gandi.net ([217.70.183.198]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hlVVE-0000q6-QM for linux-arm-kernel@lists.infradead.org; Thu, 11 Jul 2019 09:36:38 +0000 X-Originating-IP: 86.250.200.211 Received: from localhost (lfbn-1-17395-211.w86-250.abo.wanadoo.fr [86.250.200.211]) (Authenticated sender: maxime.ripard@bootlin.com) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id B715EC0042; Thu, 11 Jul 2019 09:36:08 +0000 (UTC) From: Maxime Ripard To: Mark Rutland , Rob Herring , Frank Rowand , Vinod Koul Subject: [PATCH 2/3] dt-bindings: dma: Convert Allwinner A10 DMA to a schema Date: Thu, 11 Jul 2019 11:21:57 +0200 Message-Id: <20190711092158.14678-2-maxime.ripard@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190711092158.14678-1-maxime.ripard@bootlin.com> References: <20190711092158.14678-1-maxime.ripard@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190711_023637_170635_5280DBDB X-CRM114-Status: GOOD ( 14.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, Chen-Yu Tsai , Maxime Ripard , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The older Allwinner SoCs have a DMA controller supported in Linux, with a matching Device Tree binding. Now that we have the DT validation in place, let's convert the device tree bindings for that controller over to a YAML schemas. Signed-off-by: Maxime Ripard Reviewed-by: Rob Herring --- .../bindings/dma/allwinner,sun4i-a10-dma.yaml | 55 +++++++++++++++++++ .../devicetree/bindings/dma/sun4i-dma.txt | 45 --------------- 2 files changed, 55 insertions(+), 45 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml delete mode 100644 Documentation/devicetree/bindings/dma/sun4i-dma.txt diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml new file mode 100644 index 000000000000..15abc0f9429f --- /dev/null +++ b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/allwinner,sun4i-a10-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 DMA Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai + - Maxime Ripard + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + "#dma-cells": + const: 2 + description: + The first cell is either 0 or 1, the former to use the normal + DMA, 1 for dedicated DMA. The second cell is the request line + number. + + compatible: + const: allwinner,sun4i-a10-dma + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + +required: + - "#dma-cells" + - compatible + - reg + - interrupts + - clocks + +additionalProperties: false + +examples: + - | + dma: dma-controller@1c02000 { + compatible = "allwinner,sun4i-a10-dma"; + reg = <0x01c02000 0x1000>; + interrupts = <27>; + clocks = <&ahb_gates 6>; + #dma-cells = <2>; + }; + +... diff --git a/Documentation/devicetree/bindings/dma/sun4i-dma.txt b/Documentation/devicetree/bindings/dma/sun4i-dma.txt deleted file mode 100644 index 8ad556aca70b..000000000000 --- a/Documentation/devicetree/bindings/dma/sun4i-dma.txt +++ /dev/null @@ -1,45 +0,0 @@ -Allwinner A10 DMA Controller - -This driver follows the generic DMA bindings defined in dma.txt. - -Required properties: - -- compatible: Must be "allwinner,sun4i-a10-dma" -- reg: Should contain the registers base address and length -- interrupts: Should contain a reference to the interrupt used by this device -- clocks: Should contain a reference to the parent AHB clock -- #dma-cells : Should be 2, first cell denoting normal or dedicated dma, - second cell holding the request line number. - -Example: - dma: dma-controller@1c02000 { - compatible = "allwinner,sun4i-a10-dma"; - reg = <0x01c02000 0x1000>; - interrupts = <27>; - clocks = <&ahb_gates 6>; - #dma-cells = <2>; - }; - -Clients: - -DMA clients connected to the Allwinner A10 DMA controller must use the -format described in the dma.txt file, using a three-cell specifier for -each channel: a phandle plus two integer cells. -The three cells in order are: - -1. A phandle pointing to the DMA controller. -2. Whether it is using normal (0) or dedicated (1) channels -3. The port ID as specified in the datasheet - -Example: - spi2: spi@1c17000 { - compatible = "allwinner,sun4i-a10-spi"; - reg = <0x01c17000 0x1000>; - interrupts = <0 12 4>; - clocks = <&ahb_gates 22>, <&spi2_clk>; - clock-names = "ahb", "mod"; - dmas = <&dma 1 29>, <&dma 1 28>; - dma-names = "rx", "tx"; - #address-cells = <1>; - #size-cells = <0>; - };