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[2620:137:e000::1:20]) by mx.google.com with ESMTP id hb43-20020a170907162b00b0078d25d59f62si17181837ejc.21.2022.10.20.20.54.09; Thu, 20 Oct 2022 20:54:35 -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 S229920AbiJUDs5 (ORCPT + 99 others); Thu, 20 Oct 2022 23:48:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230085AbiJUDsr (ORCPT ); Thu, 20 Oct 2022 23:48:47 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9992C1D556F; Thu, 20 Oct 2022 20:48:46 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Mtr1B3cTfzmVH9; Fri, 21 Oct 2022 11:43:58 +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 11:48:44 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v7 1/2] i2c: hisi: Add initial device tree support Date: Fri, 21 Oct 2022 11:56:37 +0800 Message-ID: <20221021035638.203929-1-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: 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?1747267852587921112?= X-GMAIL-MSGID: =?utf-8?q?1747267852587921112?= 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 v6: - No change Link: https://lore.kernel.org/lkml/7520818b-de40-7f2a-1b03-b1dcd29a2023@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 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: chenweilong X-Patchwork-Id: 6501 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4242:0:0:0:0:0 with SMTP id s2csp468082wrr; Thu, 20 Oct 2022 20:54:55 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5R2WNoIj0ba4NtivyG0CGs1zzSCj1MY2ihNuAUWWvCDjv91Ke7atxe9v1bCVOTDXD8nfRj X-Received: by 2002:a17:90b:3588:b0:20b:590:46a2 with SMTP id mm8-20020a17090b358800b0020b059046a2mr19642885pjb.14.1666324494920; Thu, 20 Oct 2022 20:54:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666324494; cv=none; d=google.com; s=arc-20160816; b=CDwdoRQJ8cVbUcqRZYxsKz2Gya8l3/rMF5XTyHH71hiKTvl6IGJEHImFJOKlpmf3uo EBONfMDFQ391BLZeDP6LMBnBbpnt1WygdDuVfK6aOnNj8ispLSUFy/WxAbYTjWCcWux7 txHNFgCW0cq9pPUEaNBq9lWgOL30z/u2Kgw9zu0WlfvmegmzcWUeJn/hmzLmhQVLEwut LyfuKjpKKQnfOMCkpB+GQLoBhzO7jEU0dCRi1y5aRBbWZw8Pxgq52imKdeJhAOvr7J38 12cdQvTLB6O+YlB2sipfiaY4/+qpoyXGmMcB9BvNSSypaOP311V9e4a5BVOWTWojozoW ygqQ== 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=ISlhSirxEwSpDSOmgGxvLzkERYfg1K61lKpTYVVICzQ=; b=LZGQ57qSA/nLGfrU1PGFru28As+FyZqq7wQMcQSvIlkFvwOuI4fwnIPBXC2f0Ks/JK xPphQqk0tSI5YGRgDw0ds/hX+q5l53u5htHXMuqYWJ2A5woRNaslF69Ny3A+C7fZgouN nDRJLsbyCprwOtdeEMjaB1ZtXqlQeb7cATayj0AUy4b53bMEGygMbyBK+ku631Fog/O5 AlD50KOoQFbPv3zyDZNUjGodfxF3caHC1k5rGPpGVQ65ud1jIum0hXV1Pri+Z42r1JgO e4tuVGkGskC+VapjnOhJgNj842RblxFO+Ns9vZVqbIVY9VQnp1br8tLu4Cx1fdX6mphB vZhw== 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 m3-20020a17090a414300b0020db486e32esi4807137pjg.158.2022.10.20.20.54.42; Thu, 20 Oct 2022 20:54:54 -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 S229849AbiJUDtL (ORCPT + 99 others); Thu, 20 Oct 2022 23:49:11 -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 X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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?1747267873893438966?= X-GMAIL-MSGID: =?utf-8?q?1747267873893438966?= 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