From patchwork Fri Jul 26 13:06:49 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: 13742778 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 8001D17B511; Fri, 26 Jul 2024 13:07:32 +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=1721999252; cv=none; b=cpg8U/05rNbX6Fqp9H7UxwpmgPI05F27g4P2Wf6OQLIrxEhuZ7YgIOG0k8VMCHJ+cNZaQtPxBmWjHj0nYtIUrtnaphsgvFuXVN8P+ATlgBIExx8s5OL9iIGASqFpFqH/zd8J8LoQXhUkD+RkRjsMmGcKIaxw/WAanGwmMsG0HmQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721999252; c=relaxed/simple; bh=u1m7gZkZ1yjoWoSMDdRGk7cBsTW8fNNZ2DIvAqgBKSs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=k3TO9hkIruNCn9jK9psO9uPtiD9mgCcShaGYL2d22EzBV0ZAuq64v8zm+e2fHuam+qDu7fBvHWIwD/d97MvY0kg2hG9gi0rfUIfhr70uSvO1kGTNyAR5b4nFFlsiXE9B6LeA202LHcpQYU7sUbm4m2kj+2AVSRtyCzb0smFB9oc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XTllicQs; 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="XTllicQs" Received: by smtp.kernel.org (Postfix) with ESMTPS id 0D0A9C4AF07; Fri, 26 Jul 2024 13:07:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721999252; bh=u1m7gZkZ1yjoWoSMDdRGk7cBsTW8fNNZ2DIvAqgBKSs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=XTllicQsaIYCkCR2gZeIKflDU5ln7xRJ9mhpefR0DAzfqPkIRs6HDpjbPFI7Vq+RW 87Nt9zFExeZEo7HgA9qsVKe0dKYxsxwDNtEGmVpPJy7qF7sSPtn1IoEZRldU7TuOkj CphOkwZboiq9/KBOnp8SMnCLnOgeDE5ncLBOkR3BqbVVdP1ketroBYyzbS1R3udnez tb2V3V0Ww9WtKceQCxSswqVeJ+vBRYOH4wVM4LnU74VObWjLdsjBs0gYWZZsy1WPPs uYSh35+p/bUZYAqpZDUlgN7JJtoAcgBcP/ve64gR7RRn5rnCUVOFK8ZKTJ60ogtZA3 2HpWHVmXG8ipg== 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 ED541C3DA7F; Fri, 26 Jul 2024 13:07:31 +0000 (UTC) From: Keguang Zhang via B4 Relay Date: Fri, 26 Jul 2024 21:06:49 +0800 Subject: [PATCH v10 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: <20240726-loongson1-dma-v10-1-31bf095a6fa6@gmail.com> References: <20240726-loongson1-dma-v10-0-31bf095a6fa6@gmail.com> In-Reply-To: <20240726-loongson1-dma-v10-0-31bf095a6fa6@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=1721999250; l=2857; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=R8rn22f2AyWKsMzsGCrIEUV/dVtejeQpZG1kFfGOao0=; b=YrISyxilxDZEO0l5vFCheESMU0/GrcCgaOwim4azDaeVTa/9D6nacBcw3r0qdZKR06LSBvn/u k6PD2GwnypOCJw3plZrBAOr00uqVBlKxZEyfFdB9MHrMzG+PEeDZCj5 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 v10: - None 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>; + };