From patchwork Fri Jun 7 12:12:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keguang Zhang via B4 Relay X-Patchwork-Id: 13689785 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B2BA919066C; Fri, 7 Jun 2024 12:13:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717762388; cv=none; b=sscp2sMhGh9mNJKUt6C480Nc+o1RbF3EIBUCQ93D+n1pCvUF58LFrKgF7EOHQibhJdAN7HI3ZpX8BqypaEuv5+ADZ2f/xURj8wRFRpA7kST/TuW9O372pbS8zN2MTug3HYBk5bFhyp6IpTTT+Zq02vW+yMMGqrIs9ESDw+ujvQI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717762388; c=relaxed/simple; bh=wVAKBmbrYCvt2d2EYAP000JHBn2/GjHrNPCB6alfcUk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rpqd6ADb6/kA30Bfd+64I4VckIqXylMN2vh4kDQbq1OuFK6dxXdqvvY5sPv2w36G5n8GoSps/PP+Lchgmr5wtwD0iyCM3aprbU6TrZiUqzVTCtk9T5gcFwiVLwG3l9UY/P8oMUi/GtwqmEbl3AB2f0iTwre1fDp8wt3yLQirg68= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hEDcDPHc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hEDcDPHc" Received: by smtp.kernel.org (Postfix) with ESMTPS id 4F9F5C32786; Fri, 7 Jun 2024 12:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1717762388; bh=wVAKBmbrYCvt2d2EYAP000JHBn2/GjHrNPCB6alfcUk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=hEDcDPHcSMnmmcdb4gvbCqnoSumjL77+uY1acSew1LMXtzQXxRL8r/Cl+CX6Gebbm UCl8j4NgjKGpLnDrD9G/KrJ2EVFuily54OBcyY6wHX2hbuQwE2TaOfH4uoP7VmPITg /fXtBWtoW7xcYmZx6Z+wkGC8Qq+GRyPtwiWUHUKyQ5qyjyNIYw9muhTSl3VMCxpb3Z QuaoZdgAme0i10d93oLaGxRi6+fBQxGjOcpZWh8z7JytVqqBjl5fjFFWq9UuvD50NO FEUNouuRygu1vPb3MES5YuBW9c6YCOIk/CKV5oTyfMPeEj/5v1REBH0Jwo/3IPm9jN RKPX8sFtYIz9Q== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B408C27C53; Fri, 7 Jun 2024 12:13:08 +0000 (UTC) From: Keguang Zhang via B4 Relay Date: Fri, 07 Jun 2024 20:12:23 +0800 Subject: [PATCH v8 1/2] dt-bindings: dma: Add Loongson-1 APB DMA Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240607-loongson1-dma-v8-1-f9992d257250@gmail.com> References: <20240607-loongson1-dma-v8-0-f9992d257250@gmail.com> In-Reply-To: <20240607-loongson1-dma-v8-0-f9992d257250@gmail.com> To: Keguang Zhang , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krzysztof Kozlowski Cc: linux-mips@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley , Jiaxun Yang X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1717762386; l=2804; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=GCRKEsFB+WWe319UoKSD9gj5YrbqFa+5zSpsMcm+1K8=; b=f2WDNM4CxH67u6sFtH50acPTPWJtvofNulPd6gB3bzk+Dt+XQiizlVYW7S0x8Nspvu1Np90au a5SO+JRbnvNBwspolN9y7MhxNvQ1PUc/ssmM5VrpRA77olMpiroD6Tc X-Developer-Key: i=keguang.zhang@gmail.com; a=ed25519; pk=FMKGj/JgKll/MgClpNZ3frIIogsh5e5r8CeW2mr+WLs= X-Endpoint-Received: by B4 Relay for keguang.zhang@gmail.com/20231129 with auth_id=102 X-Original-From: Keguang Zhang Reply-To: keguang.zhang@gmail.com From: Keguang Zhang Add devicetree binding document for Loongson-1 APB DMA. Reviewed-by: Conor Dooley Reviewed-by: Jiaxun Yang Signed-off-by: Keguang Zhang --- Changes in v8: - Change 'interrupts' property to an items list Changes in v7: - Change the comptible to 'loongson,ls1*-apbdma' (suggested by Huacai Chen) - Update the title and description part accordingly - Rename the file to loongson,ls1b-apbdma.yaml - Add a compatible string for LS1A - Delete minItems of 'interrupts' - Change patterns of 'interrupt-names' to const Changes in v6: - Change the compatible to the fallback - Some minor fixes Changes in v5: - A newly added patch --- .../bindings/dma/loongson,ls1b-apbdma.yaml | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml b/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml new file mode 100644 index 000000000000..192c85c1199d --- /dev/null +++ b/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/loongson,ls1b-apbdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 APB DMA Controller + +maintainers: + - Keguang Zhang + +description: + Loongson-1 APB DMA controller provides 3 independent channels for + peripherals such as NAND, audio playback and capture. + +properties: + compatible: + oneOf: + - const: loongson,ls1b-apbdma + - items: + - enum: + - loongson,ls1a-apbdma + - loongson,ls1c-apbdma + - const: loongson,ls1b-apbdma + + reg: + maxItems: 1 + + interrupts: + items: + - description: NAND interrupt + - description: Audio playback interrupt + - description: Audio capture interrupt + + interrupt-names: + items: + - const: ch0 + - const: ch1 + - const: ch2 + + '#dma-cells': + const: 1 + +required: + - compatible + - reg + - interrupts + - interrupt-names + - '#dma-cells' + +additionalProperties: false + +examples: + - | + #include + dma-controller@1fd01160 { + compatible = "loongson,ls1b-apbdma"; + reg = <0x1fd01160 0x4>; + + interrupt-parent = <&intc0>; + interrupts = <13 IRQ_TYPE_EDGE_RISING>, + <14 IRQ_TYPE_EDGE_RISING>, + <15 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "ch0", "ch1", "ch2"; + + #dma-cells = <1>; + };