From patchwork Fri Mar 29 11:26:57 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: 13610577 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 4E49F1096F; Fri, 29 Mar 2024 11:27:58 +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=1711711678; cv=none; b=OjuB8V3ijsrhniuTwflHhwQi5AanxI4j481abPK83gtkc+jNxBFBN6IsZ99T08+64C5009Yb2IFJq1nschRqqsVU63gp8LcLTgg6bs+6l4s45aGxzIDP2ValHePSp3r+HLpW1WVleZkeaobnciEDvb0k0S6daE1G9lbx9iiFUXA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711711678; c=relaxed/simple; bh=Uu195y/59BqgYGBbl1zGaa7SJ9EwJiXNNKk+wj/zbKA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=b7yCOIzVvBP1oWsoncNQy8xsffYluhKsKmedrLsxctAMIaKq1n6Fj/TsxLyQPkTEbULqDIUaM7e7kqLSzt0i29I+AtuyzDQKqK485n+fJRkcx0Qpr9W26n20Z0W4cvvlGwgZu7aF2WaJQYnaeYtjlfIjVqWIXAweD23w6eMhgAs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gRe/qpwS; 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="gRe/qpwS" Received: by smtp.kernel.org (Postfix) with ESMTPS id EC556C433F1; Fri, 29 Mar 2024 11:27:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711711678; bh=Uu195y/59BqgYGBbl1zGaa7SJ9EwJiXNNKk+wj/zbKA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=gRe/qpwSDB76WzYRqwV9qqzHXhOH7X7TR+ghD6OrwxLJhhzwmXfWhZmlimy0UMCge N7yB2JnGsjI0Gf9TbmtNiqJLkEGtwqbpYDJPQta7Q6wsme2LTMVNoMa+ISu/eWtPkt rSczs1p3bxRUyQk1AP6USVAlT9So7R0Sfb84FD+sGxP9t5bQqHIyiEoMDQ6PBZ7i+n qTGYWrR8cjasYWwLyozWDha3mgoVr3NVrGPnUvEYOBeMCx+u6zqsReqCEmcU73IHvS 4BAJL4PXM9enkxHlcVuO3aUbJQoYfEVz/BoziR8VOwzawH93O3/KOI86yZijUXnyKg pvlgbZ3BpjIpg== 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 D8935CD11DD; Fri, 29 Mar 2024 11:27:57 +0000 (UTC) From: Keguang Zhang via B4 Relay Date: Fri, 29 Mar 2024 19:26:57 +0800 Subject: [PATCH v7 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: <20240329-loongson1-dma-v7-1-37db58608de5@gmail.com> References: <20240329-loongson1-dma-v7-0-37db58608de5@gmail.com> In-Reply-To: <20240329-loongson1-dma-v7-0-37db58608de5@gmail.com> To: Keguang Zhang , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Huacai Chen Cc: linux-mips@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1711711676; l=2565; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=ds4wTZorT6jaeeqOkLe7QSlyOemDGAMPint8d9K/rWA=; b=q+CsL+tMdnTSWeaHeNWmgWjCfvAW5THz6sQKOfdzuxpuhjiYucwPLUqSrDi159SZwrcUn4ADD 7MGf/pWDMpSCGKVMJ2MRcDgy1hP67+ZTIzfg9Bh3a0k/PslY5V5RmTu 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. Signed-off-by: Keguang Zhang Reviewed-by: Conor Dooley --- 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 | 65 ++++++++++++++++++++++ 1 file changed, 65 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..449da9fc2de1 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/loongson,ls1b-apbdma.yaml @@ -0,0 +1,65 @@ +# 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: + description: Each channel has a dedicated interrupt line. + maxItems: 3 + + 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>; + };