From patchwork Sun Feb 26 03:13:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryan Chen X-Patchwork-Id: 657969 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8C6CC7EE2D for ; Sun, 26 Feb 2023 03:13:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229470AbjBZDNl (ORCPT ); Sat, 25 Feb 2023 22:13:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229582AbjBZDNk (ORCPT ); Sat, 25 Feb 2023 22:13:40 -0500 Received: from twspam01.aspeedtech.com (twspam01.aspeedtech.com [211.20.114.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BE35AD1D for ; Sat, 25 Feb 2023 19:13:38 -0800 (PST) Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 31Q30CKT025216; Sun, 26 Feb 2023 11:00:12 +0800 (GMT-8) (envelope-from ryan_chen@aspeedtech.com) Received: from aspeedtech.com (192.168.10.13) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 26 Feb 2023 11:13:25 +0800 From: Ryan Chen To: Ryan Chen , Andrew Jeffery , Brendan Higgins , Benjamin Herrenschmidt , Joel Stanley , Rob Herring , Krzysztof Kozlowski , Philipp Zabel , , , , , , Subject: [PATCH v6 1/2] dt-bindings: i2c: aspeed: support for AST2600-i2cv2 Date: Sun, 26 Feb 2023 11:13:20 +0800 Message-ID: <20230226031321.3126756-2-ryan_chen@aspeedtech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230226031321.3126756-1-ryan_chen@aspeedtech.com> References: <20230226031321.3126756-1-ryan_chen@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.10.13] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 31Q30CKT025216 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add ast2600-i2cv2 compatible and aspeed,global-regs, aspeed,timeout aspeed,xfer-mode description for ast2600-i2cv2. Signed-off-by: Ryan Chen --- .../devicetree/bindings/i2c/aspeed,i2c.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml index f597f73ccd87..75de3ce41cf5 100644 --- a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml @@ -49,6 +49,25 @@ properties: description: states that there is another master active on this bus + aspeed,timeout: + type: boolean + description: I2C bus timeout enable for master/slave mode + + aspeed,xfer-mode: + description: | + I2C bus transfer mode selection. + - "byte": I2C bus byte transfer mode. + - "buffered": I2C bus buffer register transfer mode. + - "dma": I2C bus dma transfer mode (default) + items: + enum: [byte, buffered, dma] + maxItems: 1 + $ref: /schemas/types.yaml#/definitions/non-unique-string-array + + aspeed,global-regs: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle of i2c global register node. + required: - reg - compatible @@ -57,6 +76,19 @@ required: unevaluatedProperties: false +if: + properties: + compatible: + contains: + const: aspeed,ast2600-i2cv2 + +then: + properties: + reg: + minItems: 2 + required: + - aspeed,global-regs + examples: - | #include @@ -71,3 +103,15 @@ examples: interrupts = <0>; interrupt-parent = <&i2c_ic>; }; + - | + #include + i2c1: i2c@80 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "aspeed,ast2600-i2cv2"; + reg = <0x80 0x80>, <0xc00 0x20>; + interrupts = ; + aspeed,global-regs = <&i2c_global>; + clocks = <&syscon ASPEED_CLK_APB>; + resets = <&syscon ASPEED_RESET_I2C>; + };