From nobody Thu Oct 9 01:16:26 2025 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 B1C3D233733; Mon, 23 Jun 2025 08:53:29 +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=1750668809; cv=none; b=eEuY/ejx6iqSu4CQm1jn6uF/dxIqDsT5ZVGQOcogsC7rkY3XfwLHI6bhftP26QzmUklFt1lAdDAAGb9AamyC6TaNvTQD/KRkPd8F1cSGc83iDrITFHv7kiBQhVJJtnJg7R+2CdMdsvNG9uy6wyL7jK1teSmKQGs4FY+ufbTA6P8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750668809; c=relaxed/simple; bh=AHNWpwAy8MJW09iklYohLLBu2hUWRyvFhy9O91s9sTE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=clyrnM5d25KSngpNqi3lRLuUr9Eui6b8oKdf8NZawmwbD0k1XOvh43ru22ba2K3T9nHr0G1bG9EY9BoAj9F9p53e/xi/Ok71kxl4NhfQbb01OnZDl0gnZ2s1/6kN0lL3d/Zhx5bg2fGg4xYtCi+sCIEfeIIKq6lmVDKSVLzTZ4A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=m75xei8C; 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="m75xei8C" Received: by smtp.kernel.org (Postfix) with ESMTPS id 5589CC4CEF1; Mon, 23 Jun 2025 08:53:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750668809; bh=AHNWpwAy8MJW09iklYohLLBu2hUWRyvFhy9O91s9sTE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=m75xei8CnbYbmiE3p9TkDEs0JHF7xKcHeAHdxrwnd0MfBtzRlDgQVA1qu3aK//m0X 7cSy/oRuqdyEKYk1tnxp6O8ckEY9FuZ54fFP556cuPrdmR8KLEQGkAJpZ0XNmbgWO6 FvkuR2gli3zxqPNSqDpKeOzz95g+SOozuAZinz4ZGXZRXwPUZ6mobK64ez8F+fHN5d vs9uImnewGUJsFakSZtznXBk1n4Ph6eq1UL4Nx5mLMhpUjECyk0uEl1t77jEu834hv b485em+JEkWLDm/gD8EgtqS58HcxAGUdk8oJohx9+ms9iaZZ0J8Z1DDgR/0t50yowM w5pzK3jUwqRXg== 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 3FF5EC7115B; Mon, 23 Jun 2025 08:53:29 +0000 (UTC) From: Xianwei Zhao via B4 Relay Date: Mon, 23 Jun 2025 16:53:27 +0800 Subject: [PATCH v3 1/3] dt-bindings: spi: Add binding document of Amlogic SPISG controller Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250623-spisg-v3-1-c731f57e289c@amlogic.com> References: <20250623-spisg-v3-0-c731f57e289c@amlogic.com> In-Reply-To: <20250623-spisg-v3-0-c731f57e289c@amlogic.com> To: Sunny Luo , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-amlogic@lists.infradead.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Xianwei Zhao , Conor Dooley X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1750668807; l=1879; i=xianwei.zhao@amlogic.com; s=20231208; h=from:subject:message-id; bh=13MP5z5DFFJsG8DGKO1bHTVm7KiuWGBoe/rppEzsqCI=; b=b/wq+TddKbNmrGl9KidTJei3VmEY0V1Sb4mLMBADfIkMl9mazUWzmmnQunyUUQys4THlvLKzD adFlc5DBETjCKWN/zwL97YEpAKhwD/udfruKCzuxR0fU4TEmhzQh1M9 X-Developer-Key: i=xianwei.zhao@amlogic.com; a=ed25519; pk=o4fDH8ZXL6xQg5h17eNzRljf6pwZHWWjqcOSsj3dW24= X-Endpoint-Received: by B4 Relay for xianwei.zhao@amlogic.com/20231208 with auth_id=107 X-Original-From: Xianwei Zhao Reply-To: xianwei.zhao@amlogic.com From: Sunny Luo The SPISG is a new communication oriented SPI controller of Amlogic, which supports PIO, block DMA and scatter-gather DMA three operation modes. Signed-off-by: Sunny Luo Acked-by: Conor Dooley Signed-off-by: Xianwei Zhao --- .../devicetree/bindings/spi/amlogic,a4-spisg.yaml | 55 ++++++++++++++++++= ++++ 1 file changed, 55 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/amlogic,a4-spisg.yaml b/= Documentation/devicetree/bindings/spi/amlogic,a4-spisg.yaml new file mode 100644 index 000000000000..8d4d4606ff48 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/amlogic,a4-spisg.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2025 Amlogic, Inc. All rights reserved +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/amlogic,a4-spisg.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic SPI Scatter-Gather Controller + +maintainers: + - Xianwei Zhao + - Sunny Luo + +allOf: + - $ref: spi-controller.yaml# + +properties: + compatible: + const: amlogic,a4-spisg + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 2 + + clock-names: + items: + - const: core + - const: pclk + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + spi@50000 { + compatible =3D "amlogic,a4-spisg"; + reg =3D <0x50000 0x38>; + interrupts =3D <0 183 4>; + clocks =3D <&clkc 37>, + <&clkc 93>; + clock-names =3D "core", "pclk"; + #address-cells =3D <1>; + #size-cells =3D <0>; + }; --=20 2.37.1