From patchwork Fri Oct 21 03:56:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weilong Chen X-Patchwork-Id: 617579 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 15B4FC43217 for ; Fri, 21 Oct 2022 03:48:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229966AbiJUDsy (ORCPT ); Thu, 20 Oct 2022 23:48:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45588 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230086AbiJUDss (ORCPT ); Thu, 20 Oct 2022 23:48:48 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D47D1D79A1; Thu, 20 Oct 2022 20:48:47 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Mtr2s1DskzpVVw; Fri, 21 Oct 2022 11:45:25 +0800 (CST) Received: from localhost (10.175.101.6) by canpemm500004.china.huawei.com (7.192.104.92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Fri, 21 Oct 2022 11:48:45 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v7 2/2] dt-bindings: i2c: add entry for hisilicon,i2c-ascend910 Date: Fri, 21 Oct 2022 11:56:38 +0800 Message-ID: <20221021035638.203929-2-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT In-Reply-To: <20221021035638.203929-1-chenweilong@huawei.com> References: <20221021035638.203929-1-chenweilong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To canpemm500004.china.huawei.com (7.192.104.92) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add the new compatible for HiSilicon i2c. Signed-off-by: Weilong Chen --- Change since v6: - Rename to hisilicon,i2c-ascend910.yaml - Change all IIC to I2C - Add maintainer name Link: https://lore.kernel.org/lkml/7520818b-de40-7f2a-1b03-b1dcd29a2023@huawei.com/T/#ma89d78cef45e7ac6f2c6251ed958e8658e5c1eb5 .../bindings/i2c/hisilicon,i2c-ascend910.yaml | 70 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml new file mode 100644 index 000000000000..f4f532d69670 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-ascend910.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/i2c/hisilicon,i2c-xxx.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: HiSilicon common I2C controller Device Tree Bindings + +maintainers: + - Yicong Yang + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + const: hisilicon,i2c-ascend910 + description: + The HiSilicon common I2C controller can be used for many different + types of SoC such as Huawei Ascend AI series chips. + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-frequency: + default: 400000 + + i2c-sda-falling-time-ns: + default: 343 + + i2c-scl-falling-time-ns: + default: 203 + + i2c-sda-hold-time-ns: + default: 830 + + i2c-scl-rising-time-ns: + default: 365 + + i2c-digital-filter-width-ns: + default: 0 + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + i2c@5038b0000 { + compatible = "hisilicon,i2c-ascend910"; + reg = <0x38b0000 0x10000>; + interrupts = <0x0 120 0x4>; + i2c-sda-falling-time-ns = <56>; + i2c-scl-falling-time-ns = <56>; + i2c-sda-hold-time-ns = <56>; + i2c-scl-rising-time-ns = <56>; + i2c-digital-filter; + i2c-digital-filter-width-ns = <0x0>; + clocks = <&alg_clk>; + clock-frequency = <400000>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index ad32dc9c4822..961e4442fb08 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9211,6 +9211,7 @@ M: Yicong Yang L: linux-i2c@vger.kernel.org S: Maintained W: https://www.hisilicon.com +F: Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.yaml F: drivers/i2c/busses/i2c-hisi.c HISILICON LPC BUS DRIVER