From patchwork Thu Oct 31 20:03:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Packham X-Patchwork-Id: 13858338 Received: from gate2.alliedtelesis.co.nz (gate2.alliedtelesis.co.nz [202.36.163.20]) (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 9168B1CBE94 for ; Thu, 31 Oct 2024 20:04:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.36.163.20 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730405047; cv=none; b=ghlslyQGQ3mJcSyC2onaOmrdMzonkQUgJVM9urRjqP9ecZcLSz9Ga+mLQVJRYlnepvv6gjitly07G0NlZL9Z6MuDeNgQ4n0mfmKiPxSZb0AegkZX1rEAaTUYA2EXMfQ/69ilcIn1+enHBYqsaYnP4rG68+reu0z1bIQ7ScsiClo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730405047; c=relaxed/simple; bh=vymfZDYu8mord0jv02IfQO4vP9ljC+O+1t4/Q47T0QA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qA4KO5t9LxouGrskU1qVMYRNENE27ygOgKkksWN4FEbKy6KBRNT/q9boT8fChWRH38SHHCuwOC6utaAjPofqZPbXuSJBJFwNRBjGhV9E/O87KA/4tM8PZK0kchkjb3if0g76b06nE+9kqZq1ZPIYQ6oUzQ121cNAStZ8dmx5lrU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=alliedtelesis.co.nz; spf=pass smtp.mailfrom=alliedtelesis.co.nz; dkim=pass (2048-bit key) header.d=alliedtelesis.co.nz header.i=@alliedtelesis.co.nz header.b=jWoEYC7C; arc=none smtp.client-ip=202.36.163.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=alliedtelesis.co.nz Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alliedtelesis.co.nz Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=alliedtelesis.co.nz header.i=@alliedtelesis.co.nz header.b="jWoEYC7C" Received: from svr-chch-seg1.atlnz.lc (mmarshal3.atlnz.lc [10.32.18.43]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by gate2.alliedtelesis.co.nz (Postfix) with ESMTPS id 7A1D32C0526; Fri, 1 Nov 2024 09:03:53 +1300 (NZDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alliedtelesis.co.nz; s=mail181024; t=1730405033; bh=oppBd4w3EekvX+V8L144O4lFLlVDXZS0zRJys2fNpAA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jWoEYC7CR2vYp9p6A0ywdB31MrQjt8zYSbkCxG5KR19+RdOxXWAEQgaWyOnulLbRj m5/aa187cWH++FSHRIoWtoBhHH4dGw/YWZPWbNWTrrkTMTmIeoSzdaldnnkBnjWBKE I+fmDv0gh2W9fyjeB3EabV1u6Cgzfa4K3J1MufVsLfd9OZjdKbOsmUT331oz6nO8rM xV6UfLEV9KLrPtM7szrBvwiCSJzrzUSUV7aIo8rJDjHbeSmdYSxcAC0hQiVOOuykoH YFdGWLH1lNgRNtIgHsDihv1n3HcMaICfAwFrfqYbCcABr4U6GPT0f/m8NV34k9TrWp OZ64ZaiBdikXg== Received: from pat.atlnz.lc (Not Verified[10.32.16.33]) by svr-chch-seg1.atlnz.lc with Trustwave SEG (v8,2,6,11305) id ; Fri, 01 Nov 2024 09:03:52 +1300 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.30]) by pat.atlnz.lc (Postfix) with ESMTP id DD5F113EE32; Fri, 1 Nov 2024 09:03:52 +1300 (NZDT) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id D72FB280964; Fri, 1 Nov 2024 09:03:52 +1300 (NZDT) From: Chris Packham To: andi.shyti@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, lee@kernel.org, sre@kernel.org, tsbogend@alpha.franken.de Cc: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-mips@vger.kernel.org, Chris Packham Subject: [PATCH v8 3/7] dt-bindings: i2c: Add Realtek RTL I2C Controller Date: Fri, 1 Nov 2024 09:03:46 +1300 Message-ID: <20241031200350.274945-4-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241031200350.274945-1-chris.packham@alliedtelesis.co.nz> References: <20241031200350.274945-1-chris.packham@alliedtelesis.co.nz> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SEG-SpamProfiler-Analysis: v=2.4 cv=ca1xrWDM c=1 sm=1 tr=0 ts=6723e2a9 a=KLBiSEs5mFS1a/PbTCJxuA==:117 a=VlfZXiiP6vEA:10 a=KKAkSRfTAAAA:8 a=gEfo2CItAAAA:8 a=LzV1YipphZs-ZdUuF_wA:9 a=3ZKOabzyN94A:10 a=cvBusfyB2V15izCimMoJ:22 a=sptkURWiP4Gy88Gu7hUp:22 X-SEG-SpamProfiler-Score: 0 x-atlnz-ls: pat Add dt-schema for the I2C controller on the RTL9300 Ethernet switch with integrated SoC. Signed-off-by: Chris Packham Reviewed-by: Krzysztof Kozlowski --- Notes: Changes in v8: - New(ish). At Lee's request I've moved the i2c binding into a separate patch so the mfd change can be taken via Lee's tree. I've added a r-by from Krzysztof from the v7 ov the combined patch, I hope that's OK. .../bindings/i2c/realtek,rtl9301-i2c.yaml | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml new file mode 100644 index 000000000000..eddfd329c67b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/realtek,rtl9301-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Realtek RTL I2C Controller + +maintainers: + - Chris Packham + +description: + The RTL9300 SoC has two I2C controllers. Each of these has an SCL line (which + if not-used for SCL can be a GPIO). There are 8 common SDA lines that can be + assigned to either I2C controller. + +properties: + compatible: + oneOf: + - items: + - enum: + - realtek,rtl9302b-i2c + - realtek,rtl9302c-i2c + - realtek,rtl9303-i2c + - const: realtek,rtl9301-i2c + - const: realtek,rtl9301-i2c + + reg: + description: Register offset and size this I2C controller. + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + '^i2c@[0-7]$': + $ref: /schemas/i2c/i2c-controller.yaml + unevaluatedProperties: false + + properties: + reg: + description: The SDA pin associated with the I2C bus. + maxItems: 1 + + required: + - reg + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c@36c { + compatible = "realtek,rtl9301-i2c"; + reg = <0x36c 0x14>; + #address-cells = <1>; + #size-cells = <0>; + + i2c@2 { + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + }; + };