From patchwork Tue Oct 18 07:30:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenweilong X-Patchwork-Id: 3988 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp1821794wrs; Tue, 18 Oct 2022 00:32:29 -0700 (PDT) X-Google-Smtp-Source: AMsMyM6QieyNx8gDFvz/rAlzvCvbsjQaEuq4iguQ0qcx4VUHB2Uo1nD5gCuMTKSsxK+ruYJZ27GQ X-Received: by 2002:a17:90a:d983:b0:20a:ec04:e028 with SMTP id d3-20020a17090ad98300b0020aec04e028mr37018245pjv.122.1666078349081; Tue, 18 Oct 2022 00:32:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666078349; cv=none; d=google.com; s=arc-20160816; b=Z7bEWkS5jn2ExKpfGP8WORz/egn7aPvp5FxNENokFYJVBBKH2JE5RwYICskzRpHTIG PQIZlED0TXE8hBVPhz5XfOzS84n1ymGc3TACn9yvB+Rwmu37qS0pOahk2Qf59dwSUD0R UHGOsn5/MGoBzORvfqrJVL7obdZW8NNKGx83UwHyBnXeBoQ+ELKPb+LGJj39g0HBBSN1 czHpmoajZhU5UGZ2v/ttDeE6Kn16UA04LX4RijfWkyCPdxb51rC5S6keexV911x3NmTo 5kHeUeJl2DQJh/j1tZ7HkgRye+fHCdARQbN/UTAY5Kk1z8HqPZ1LMEm3ptF9pdI/QNzJ 3TBA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=Kmhj6/2JLjc3wpKFgnpRTi9BODbZSjZcU70IVmB9bv4=; b=yscqDqew6TkwMniKDRegYauapWjYmWixYeIzkrdntKAHGjrOJKTgrrETekUfTlacac f1PG+Igz2WZXc8Wg7C0CsQCCqarW/cf9xolcLTtnf8NPDlZKM/LiL69PyxxjVphFaHgt 16D3J2+N79cgwczEvxtVba0LRNZGpGyqTyACooay4hvk5KgX4LMPBiXIF4DtC7HCv7zi /yKGU/TVu287RXpdyPdMshx4i4pd2V+wxWHEUInazYFrOJhkWPJjc4+mbWRkM25jcxYU 2qHlcj4Xhs9SmfLfibFLfTZoJgmF+HlpFSPETqAg/PT7OyWi2z0OqFIlabtMHW6vXpgc sZ6A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id a7-20020a637047000000b00434df8032e4si14832711pgn.139.2022.10.18.00.32.16; Tue, 18 Oct 2022 00:32:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230397AbiJRHWa (ORCPT + 99 others); Tue, 18 Oct 2022 03:22:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230233AbiJRHWS (ORCPT ); Tue, 18 Oct 2022 03:22:18 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A884DAB827; Tue, 18 Oct 2022 00:22:16 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Ms4wd5ssxzpVdX; Tue, 18 Oct 2022 15:18:57 +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; Tue, 18 Oct 2022 15:22:10 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v6 1/2] i2c: hisi: Add initial device tree support Date: Tue, 18 Oct 2022 15:30:11 +0800 Message-ID: <20221018073012.309355-1-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To canpemm500004.china.huawei.com (7.192.104.92) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747009770863829269?= X-GMAIL-MSGID: =?utf-8?q?1747009770863829269?= The HiSilicon I2C controller can be used on embedded platform, which boot from devicetree. Signed-off-by: Weilong Chen Acked-by: Yicong Yang --- Change since v5: - Use hisilicon,i2c-ascend910 as compatible string. For more information about the SoC at https://e.huawei.com/en/products/cloud-computing-dc/atlas/ascend-910 Link: https://lore.kernel.org/linux-i2c/20220920072215.161331-1-chenweilong@huawei.com/ Change since v4: - Remove the protection for the headers for ACPI/OF Link: https://lore.kernel.org/lkml/20220909074842.281232-1-chenweilong@huawei.com/T/ drivers/i2c/busses/Kconfig | 2 +- drivers/i2c/busses/i2c-hisi.c | 15 ++++++++++++++- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 264e780ae32e..a2081c03f3c4 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -673,7 +673,7 @@ config I2C_HIGHLANDER config I2C_HISI tristate "HiSilicon I2C controller" - depends on (ARM64 && ACPI) || COMPILE_TEST + depends on ARM64 || COMPILE_TEST help Say Y here if you want to have Hisilicon I2C controller support available on the Kunpeng Server. diff --git a/drivers/i2c/busses/i2c-hisi.c b/drivers/i2c/busses/i2c-hisi.c index 76c3d8f6fc3c..d58a6d2f1bc6 100644 --- a/drivers/i2c/busses/i2c-hisi.c +++ b/drivers/i2c/busses/i2c-hisi.c @@ -5,6 +5,7 @@ * Copyright (c) 2021 HiSilicon Technologies Co., Ltd. */ +#include #include #include #include @@ -13,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -483,17 +485,28 @@ static int hisi_i2c_probe(struct platform_device *pdev) return 0; } +#ifdef CONFIG_ACPI static const struct acpi_device_id hisi_i2c_acpi_ids[] = { { "HISI03D1", 0 }, { } }; MODULE_DEVICE_TABLE(acpi, hisi_i2c_acpi_ids); +#endif + +#ifdef CONFIG_OF +static const struct of_device_id hisi_i2c_dts_ids[] = { + { .compatible = "hisilicon,i2c-ascend910", }, + { } +}; +MODULE_DEVICE_TABLE(of, hisi_i2c_dts_ids); +#endif static struct platform_driver hisi_i2c_driver = { .probe = hisi_i2c_probe, .driver = { .name = "hisi-i2c", - .acpi_match_table = hisi_i2c_acpi_ids, + .acpi_match_table = ACPI_PTR(hisi_i2c_acpi_ids), + .of_match_table = of_match_ptr(hisi_i2c_dts_ids), }, }; module_platform_driver(hisi_i2c_driver); From patchwork Tue Oct 18 07:30:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenweilong X-Patchwork-Id: 3986 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp1821617wrs; Tue, 18 Oct 2022 00:31:56 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7ZsNuKlV21UNxXjSgxQaiu38DUf1Ek3ukWcbsi3fkq4syzA/8erER7uSRFV7j6z7/kGiH5 X-Received: by 2002:a05:6402:ca6:b0:458:60af:6875 with SMTP id cn6-20020a0564020ca600b0045860af6875mr1362362edb.295.1666078316074; Tue, 18 Oct 2022 00:31:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666078316; cv=none; d=google.com; s=arc-20160816; b=r8BmqCP44cJycT4b91m1OJTw9BVkB56KM1+oa7IRwUKD0aGbUj0i28LE2OKqXvCkd0 ufdDoGE+DYxPn6mNGpc0EgrKh1YXjATebWd98GYLg/iDeqPAZACO8AgHQvp8WGEXA9iv Yqc6D3wCbhbz4itgGJVIyfydJ4+rE997vO1rFd4au6MS8rNXdlI/uyX2hAmGwP4OAeCf nE/zyVnaTywFhENw/86js1NknusMcoPjQgjGEIcI8RdJqpGyk/+KXe9wyDW+CtBVlqxp Jl32dgmqHKYTYOkjCGVbJ9QDd10Ec3CCMDevCa5zjQ7AcpJZRCaXQsapNxNctZNa/Wex v90A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=nkmEBDKA1AyGqfrT0QILhryV8WzTdZuBvh3JlGqPDAU=; b=MZnMvBbkEi9DhdJNqlOWTowUP9VlVJ+t1OKIgDMu0MYY1zqbDSzRup0Oes6IDZrPsD oagsz22N6QuokBe9g2afmkbN/pKg5kJcmLeyexTp/ZfVYt0QnDn1Ef+GUoJys0z0g9t8 KY7loKoBDCSv1EhZsbHGGkl7CRKwUC+xftetdaMVAxzRJ++WeJiLta21qQ1NHH9eiTuk zoAHAma7K+ibJ1SNWndh9HlT7dol/OdzYOtqeVexmfEM4v0ziNUVqy5pbPlYUomhFQiK 6cM6AWWg967Trfxp5DCy1VkhJaKgtEEOaD+UOydeX62tFMVzoiJRbokWiEYHpQZYI6TR 3o4w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id g21-20020a50d0d5000000b0045cfca7e0b3si10002781edf.533.2022.10.18.00.31.31; Tue, 18 Oct 2022 00:31:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230342AbiJRHWe (ORCPT + 99 others); Tue, 18 Oct 2022 03:22:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230318AbiJRHWS (ORCPT ); Tue, 18 Oct 2022 03:22:18 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEFB3AB82B; Tue, 18 Oct 2022 00:22:16 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Ms4wd6MCQzpVhq; Tue, 18 Oct 2022 15:18:57 +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; Tue, 18 Oct 2022 15:22:11 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v6 2/2] dt-bindings: i2c: add entry for hisilicon,i2c-ascend910 Date: Tue, 18 Oct 2022 15:30:12 +0800 Message-ID: <20221018073012.309355-2-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT In-Reply-To: <20221018073012.309355-1-chenweilong@huawei.com> References: <20221018073012.309355-1-chenweilong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500004.china.huawei.com (7.192.104.92) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747009736347904127?= X-GMAIL-MSGID: =?utf-8?q?1747009736347904127?= Add the new compatible for HiSilicon i2c. Signed-off-by: Weilong Chen Reviewed-by: Yicong Yang --- Change since v5: - Use hisilicon,i2c-ascend910 as compatible string. For more information about the SoC at https://e.huawei.com/en/products/cloud-computing-dc/atlas/ascend-910 - Alphabetic order the MAINTAINERS Change since v4: - Add description for SoC specific compatibles. - Use the clock binding. - Fix decimal, space, case, unused labels. Link: https://lore.kernel.org/lkml/20220909074842.281232-1-chenweilong@huawei.com/T/#m4e1c915ead04f4e2e48d69131053a966801625db .../bindings/i2c/hisilicon,i2c-xxx.yaml | 70 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.yaml diff --git a/Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.yaml b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.yaml new file mode 100644 index 000000000000..a7285ddc260d --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hisilicon,i2c-xxx.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 IIC controller Device Tree Bindings + +maintainers: + - yangyicong@huawei.com + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + const: hisilicon,i2c-ascend910 + description: + The HiSilicon common IIC 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