From patchwork Sun Mar 16 07:43:21 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Troy Mitchell X-Patchwork-Id: 874230 Received: from mail-pl1-f193.google.com (mail-pl1-f193.google.com [209.85.214.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6CF4518DB3A; Sun, 16 Mar 2025 07:46:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.193 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742111175; cv=none; b=XzfmyZTWa+EoUzz7zocNAn5dWhHOYtzi4YmcgK6eIyw/9hUimPBniFcatGQZO4Wr/IaHg2NEsfk6zWguEyD+uOgsApXjUErjBnod9i1aKnK4q3WuievHbl5MKhbmkRGppUhfXF2l+dsTSKUyvz0XWVVz0WFpquAtuLNrQNObd7o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742111175; c=relaxed/simple; bh=XJqQ9vN219kTUQDWWgsn5UwgncFFcAviYm9fDZ7tTqw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=D66R125NLaM/0SWUBDjvtTN72V1A8KO50zY7MkQOekhT5dPEUlIK4fHp6zBKSWnAh9zzQImUi8pUsAGui4fGApEJkL88DGxbTFcivWffTX1lH/cAhAYNsXaTsvXvUSGFscARu5SdjLMRwyoAKuHvIRtk8LHs98xE5HK3SBvv0S8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AhpWHQKu; arc=none smtp.client-ip=209.85.214.193 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AhpWHQKu" Received: by mail-pl1-f193.google.com with SMTP id d9443c01a7336-223594b3c6dso66730855ad.2; Sun, 16 Mar 2025 00:46:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1742111174; x=1742715974; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=Uh4Y53V77ruJXW8QR5flp6pUeWx/bYICn3Mwn1bkPIM=; b=AhpWHQKurpYYIxavtjaZvyoqpw211qtH9GW2Cn16wnHyUAeYBV6Fd+r0bOSqfQXsF6 qXv/0PcfK3iKcgcGVvwe0113oYZp7kha4BMrjh8ULpNJGsP1YwUkHgDYAZJjSz/OAo1S qaRG6nlZUkqs3uneEu6r5cFzQkqCB+1bl3dhHB6GmD+/RCH76zQya37BzGVu09eOCxrP pLP8OtzCiGVd364jC5Y2K1Vw8wrJEfSwi1XrhcgEqoHBhdpusnSjrHlFoh5IBXKh25pa hzWdofjQS0ClxqD1tJhh4KA3ghz51zNASolu7NoUMznwKgUXiTpG8vGppkbw4i2vey0u VQxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742111174; x=1742715974; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Uh4Y53V77ruJXW8QR5flp6pUeWx/bYICn3Mwn1bkPIM=; b=PW/1MKrtSTBmaq6j2YStVM6vnrh3PbgalDIWcdS/iQCUm9+mN0gK+rGp9ZXv9w29+9 XudX6qnhOaxFq27SqXoiy2Tf46h33xowosSLfBwDBOtbVZJHoBW1MvQJxjJ837T6/942 nHbVQ4mMJXLJ7hfxb4P8tp1DA6kSC/3i/sHfACJqqfJsMaLyqgzFpxQGIWWxhXMtNeL3 85d6NW0q4pTxdp+5a+tbyMUcUZihtDilJ0gD5r9UE3jMEcQcRo0DyvIxohaK8Cu2ToWc zvad98jaEiNvDUeyaN3sE44Qrb5GYnMV5jIalRPA1j+oLa3NTov5eP5pbl8mA4W8n0y7 uvRw== X-Forwarded-Encrypted: i=1; AJvYcCU7W7W74Rxa4/BpB3cfsS4BkDPCmaPans9qZe3agvyxtu+2MxQzeTXnOOM++SgGFQnqMNlvOplOla30J210@vger.kernel.org, AJvYcCUvANLW452kulsKpAyw3f491Yc4erp4rjsEhaTdWJa8JVYExtJNPcDqj5hw2eFKg6SPmG+FV6sfKrYh@vger.kernel.org, AJvYcCUxHbab7KVH06M9xkgnPGivrq1RFT1RR5p0/+44j1i0/zD1D1PaivL/EJghsQJhMEPc4YiTClLbNR0g@vger.kernel.org X-Gm-Message-State: AOJu0YwIN/IWHc08FaFcDcp+0Ed0h4tr4zxV06TF0yIbHks+NmQZB+it 7DQ/JMwHAX3YiQDZTePHGAHEBLQsK1IsMeOH/zX2JdiHhFfhpWWe X-Gm-Gg: ASbGnctvrLeANdFzYPj4EtHjyNtopyL57IfKbngdDRkiiSS7vRazplzecE/6gnGm2Qc 63mE8P4teM0EreG43piIqX3u+GFhnxVNvdSHcdEymwXsU2kHbm7cdLrlq+sePVP5DfjdEuxP03m eqFJ5DIwBweAgOoyS1kRvQXliRR5pQGHFaYKLZNZIGoqvZlzeNDgfEMEnl9UdlRf7yuNwxnIBUe dG8tKojQ/X+3biNGpK05yR0qltrdVC+yr9yPaP9/rxYrSapkwjmd4gZlgc0vQfGHdFJvD45GXTc VDbBvdNT4yQRksoUHfwGlRhKitHowby/wTOL7wQ= X-Google-Smtp-Source: AGHT+IHnoTX4HvYj6GA+XsaeR/Z5lsvK9bYDQeHmDp9+70ZV3nun+eVO850kkAELvfo3/3lwtE3oqA== X-Received: by 2002:a05:6a00:4b05:b0:736:ff65:3fcc with SMTP id d2e1a72fcca58-737223ed33bmr8204799b3a.16.1742111173585; Sun, 16 Mar 2025 00:46:13 -0700 (PDT) Received: from [127.0.1.1] ([2602:f919:106::1b8]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-73711694e56sm5575907b3a.130.2025.03.16.00.46.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Mar 2025 00:46:13 -0700 (PDT) From: Troy Mitchell Date: Sun, 16 Mar 2025 15:43:21 +0800 Subject: [PATCH v7 1/2] dt-bindings: i2c: spacemit: add support for K1 SoC Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250316-k1-i2c-master-v7-1-f2d5c43e2f40@gmail.com> References: <20250316-k1-i2c-master-v7-0-f2d5c43e2f40@gmail.com> In-Reply-To: <20250316-k1-i2c-master-v7-0-f2d5c43e2f40@gmail.com> To: Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Troy Mitchell Cc: linux-riscv@lists.infradead.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, spacemit@lists.linux.dev, Conor Dooley X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1742111004; l=2169; i=troymitchell988@gmail.com; h=from:subject:message-id; bh=XJqQ9vN219kTUQDWWgsn5UwgncFFcAviYm9fDZ7tTqw=; b=QN7vDkWymm9DXNpwH7BLID5XKsUCIqAc8T69dLCpf51XfHi9rFbn0wEu2xY3I4LyEJhNDsdQz kaS++L6eUuDBi3HmNLXanwqZeQUZHTc52mLBYrp++RilH5LSBEKkPkO X-Developer-Key: i=troymitchell988@gmail.com; a=ed25519; pk=2spEMGBd/Wkpd36N1aD9KFWOk0aHrhVxZQt+jxLXVC0= The I2C of K1 supports fast-speed-mode and high-speed-mode, and supports FIFO transmission. Reviewed-by: Conor Dooley Link: https://lore.kernel.org/all/20250128-k1-maintainer-1-v1-1-e5dec4f379eb@gentoo.org [1] Signed-off-by: Troy Mitchell --- .../devicetree/bindings/i2c/spacemit,k1-i2c.yaml | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml new file mode 100644 index 0000000000000000000000000000000000000000..3d6aefb0d0f185ba64e414ac7f5b96cd18659fd3 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/spacemit,k1-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: I2C controller embedded in SpacemiT's K1 SoC + +maintainers: + - Troy Mitchell + +properties: + compatible: + const: spacemit,k1-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: I2C Functional Clock + - description: APB Bus Clock + + clock-names: + items: + - const: func + - const: bus + + clock-frequency: + description: | + K1 support three different modes which running different frequencies + standard speed mode: up to 100000 (100Hz) + fast speed mode : up to 400000 (400Hz) + high speed mode : up to 3300000 (3.3Mhz) + default: 400000 + maximum: 3300000 + +required: + - compatible + - reg + - interrupts + - clocks + +unevaluatedProperties: false + +examples: + - | + i2c@d4010800 { + compatible = "spacemit,k1-i2c"; + reg = <0xd4010800 0x38>; + interrupt-parent = <&plic>; + interrupts = <36>; + clocks =<&ccu 32>, <&ccu 84>; + clock-names = "func", "bus"; + clock-frequency = <100000>; + }; + +...