From patchwork Thu Jul 11 10:55:37 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: 13730346 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 29194156F5D; Thu, 11 Jul 2024 10:55:54 +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=1720695355; cv=none; b=tvsUEnDf4gXpzdI86u1eG170JcR1UkAWg31Wa9ekcnfLLIsAKMZHyoI7cxnt3sxzLslyw5NtPv0FytlhZXGJaF8q0BaGSXH88ovRKEtQ1ZiCMx+VQDBKTYq4/oLqsyfX6qt4/4zuZ07hPAKjUTwWpqICpM5qzxA07jVZigqOu1Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720695355; c=relaxed/simple; bh=DE+FVo77unx9XVdvimGFNJZwqU+7Z3SMhyWIyT6Piz8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cvgER+pmmL03ee/HHJlrPJ2odJKPdI3iK6ukT+KuKfZMet4uhB4C1GiVNSHsgDbJZu/x8jjKlyIx83MoLPFllfThqKcI6r+IibAlhaiEfeJMDX0bZJRcmilkkhZV9eL+A5irCn+PemMdu2KZbzKIRPZzOjduIKxPE222m3DCqSc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ga4n2OZD; 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="Ga4n2OZD" Received: by smtp.kernel.org (Postfix) with ESMTPS id B554BC4AF07; Thu, 11 Jul 2024 10:55:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720695354; bh=DE+FVo77unx9XVdvimGFNJZwqU+7Z3SMhyWIyT6Piz8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Ga4n2OZDJKaEvJj08Hcgy3eue0lU2iHxO7R789FzIix9BbdSxi0ipdImINKfNgsXq afb+p9kOd5fERwhT1zyN8Q4Q1zbZDU44c04q4Nx9Lb8RBx/gNnssNjkGkQ7aWxDbaH 31P9srxn0NPMI1AcI8gRgUxaZTXYKGvYMnzUwFlh+KJF2py+I86OIEppne70uK8Ri1 /pdya1hDIyhsyAwj+DmN/Jg+zx/p900k5Ijpv9ow2rzmaU9c3zpzpGGCKcjnHDU4WH 7v0t2D558Od1NHnyOVPLS3VJc+gjaTZle6WR9EWSKJ6VVAaGynCfV6yJF9fqOY9PfF fqSoKpAtHzabg== 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 9628BC3DA4A; Thu, 11 Jul 2024 10:55:54 +0000 (UTC) From: Keguang Zhang via B4 Relay Date: Thu, 11 Jul 2024 18:55:37 +0800 Subject: [PATCH RESEND v9 1/2] dt-bindings: dma: Add Loongson-1 APB DMA Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240711-loongson1-dma-v9-1-5ce8b5e85a56@gmail.com> References: <20240711-loongson1-dma-v9-0-5ce8b5e85a56@gmail.com> In-Reply-To: <20240711-loongson1-dma-v9-0-5ce8b5e85a56@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 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1720695351; l=2830; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=VMRWdh/PCclHrwoAYaQVWsjCcphB3QpZQvLeWMebljU=; b=4EDEp8WcZcafME11O8Ch4XkaZIGy1/jNWpkY6EVjozNuxrmzqrJe/+2GdHKLyl7NJdJCBReh7 m0ImZrvgB+lBre1BsmRVH7QxUJor3XQquFiMarX+0DqB/GYlj5dpbc9 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 v9: - None 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>; + };