From patchwork Mon Oct 24 01:51:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenweilong X-Patchwork-Id: 8117 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp210053wru; Sun, 23 Oct 2022 19:05:19 -0700 (PDT) X-Google-Smtp-Source: AMsMyM5nkphBcWru2UKRJrOIWe5Y5mmcwohrd5mrKT+0df+UUKJ/iMN7lB9C+MK0jYTrTHm6RHZZ X-Received: by 2002:aa7:800a:0:b0:565:af23:f5a4 with SMTP id j10-20020aa7800a000000b00565af23f5a4mr31390624pfi.42.1666577119294; Sun, 23 Oct 2022 19:05:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666577119; cv=none; d=google.com; s=arc-20160816; b=fzGSTA1KKbqIw04IP16NwXTsTU8ZQoq4Q4jaAEcD+tJS1hyzCSxImq07xA2kSxE0Qt 8XeqdFLScpiGwfcp+ygXYsFsobAU5eIAzVJ7Z8TXRkJ+CvYjxDI5YUToDkAEMQc7VDGN RL1VzqLb5ptHUhIfjyXFEOqS6oA+rNLrpQhIZ/yVDC/tnyaXdob6emB2uF0ChVyUgfCS nUW865uqXqFTN90jJoPv3vbpeBUVXHYvsFuvQGMWwFwWd4UtDiSiKSPrXZs1zRPEsUxx fII+mCrPrKF1MapJBxSFsN3lh8guCpNiR8Q1dpchvJ+ChUwc3mZ1rsgwK/ACKGLanovb 4aVQ== 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=4ZwzRvIPmAj6wrNPFUq7T9KlSFysmEY5ENbFFXWM3b4=; b=D7W5Nfz+gghtrBFhFErcnxpw+NxvNgmAii2yNwm/gK5FYCsnKWaOjLsHhB3Rg81uTv YJJT8JOYTyC78TygtWKsgSLNnczoN32v81JMzCN56l57ezwsT4TxkYPVSovlkz9t3AeU +TvBKnoO0/ctYnX+KIkfVtGJTQpEgLb+Jg9njp+dFxYK9O8ZPuk2qzE574hsPMUPHtzU yKTFtW1JeEUk/XV5lWMropSUgfD6NM3eZ6AQzpGZOccgH/VA2y5pzXfSrT5FVNgKrit7 OlgqHin87EoKIbmgzfB/Hl4YUsGH4YArxjE+Z6gtwA6PS9l3Hgfwz1b99vsGqYhixmYO IeRQ== 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 d24-20020a17090ad3d800b00212ec29c79asi5238794pjw.62.2022.10.23.19.05.01; Sun, 23 Oct 2022 19:05:19 -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 S229995AbiJXBoP (ORCPT + 99 others); Sun, 23 Oct 2022 21:44:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbiJXBoJ (ORCPT ); Sun, 23 Oct 2022 21:44:09 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0178C6D9FD; Sun, 23 Oct 2022 18:44:07 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Mwd616nRgzVj1C; Mon, 24 Oct 2022 09:39:21 +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; Mon, 24 Oct 2022 09:44:05 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v8 1/2] i2c: hisi: Add initial device tree support Date: Mon, 24 Oct 2022 09:51:50 +0800 Message-ID: <20221024015151.342651-1-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: 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 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?1747532769722270819?= X-GMAIL-MSGID: =?utf-8?q?1747532769722270819?= 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 v7: - No change Link: https://lore.kernel.org/all/20221021035638.203929-1-chenweilong@huawei.com/ 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 Mon Oct 24 01:51:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenweilong X-Patchwork-Id: 8119 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp210225wru; Sun, 23 Oct 2022 19:05:59 -0700 (PDT) X-Google-Smtp-Source: AMsMyM66Efldu9akutQMYzGGMkHFb/KbhSQEURScCLHBt9X4B1g0A79gLIXX/yGQdIujvC58cr6c X-Received: by 2002:a17:902:b598:b0:184:e49d:3042 with SMTP id a24-20020a170902b59800b00184e49d3042mr31762099pls.16.1666577159461; Sun, 23 Oct 2022 19:05:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666577159; cv=none; d=google.com; s=arc-20160816; b=oIN1+Kfm+0r7xWTx1V27hpAp//MoOLYxjaLPxUoNGO3pwvTvaY+/df4UQ8s36prQT4 YGvb8b+wk5SgSQEaQhE7YX4Wvru+xB5CJvkAOGpC3VyplDiBaZsRjKhrl3FMaD0YKJJc 1pdJ8ye88uwdafiT5rzQ20OdsppFVF/TBhP3j8UPrjWk9UiX0KSmeEx8FMKU1nMRdyGC mU8ngWY8vy0L1DvZtjphPNbF627H1xWs+kPpASNN7cDbt74jcZtkGrSOylIFKOKy8mfZ rM04GRlPQAzr3A/wpVxpWW0rZll2vHS7etDBMDkUjaY2njvgLhVf6CPYnWXhU2jhzv9i ITJA== 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=LESb6qRnRQjREWmbbl/1p+ZInIjN1aPh3qXF+IaBT30=; b=ePLR127PL1OsRVsSc4dcmdg8K1Ar6rigscNYdUA8y3XoXIJBlefbOAYo07R3E/pDKh hfdMgKzIoIbaHnSjht4WchCUMOLE9qMP0NS76Wt/VYMu1BZ90+a/u+9x3xXyMk5eNy2Z 45RhovLJI22Eyu9U0zlsZoQVDNSgi7fkRL17Q5QLmvQqWtnxZjYuh2DLbUab6x/D1t2s tUXHswRkifpz4jeJ9WKFUwgSBVC1SaYfZtE9RE2eSuWpQzd4K31e9Sl2shWaNuJbpFDR 80WpkCKwLNikqYe6s6EMJf1qkQrXDBxNGqhVE3O4bIMuCRfXiGGT8YxAfbAnmUOiPaMC eU5A== 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 p21-20020a63e655000000b00438766f903asi34289239pgj.490.2022.10.23.19.05.47; Sun, 23 Oct 2022 19:05:59 -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 S229714AbiJXBoL (ORCPT + 99 others); Sun, 23 Oct 2022 21:44:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229587AbiJXBoJ (ORCPT ); Sun, 23 Oct 2022 21:44:09 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 083216D9FF; Sun, 23 Oct 2022 18:44:08 -0700 (PDT) Received: from canpemm500004.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MwdCH3v1XzHv3l; Mon, 24 Oct 2022 09:43:55 +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; Mon, 24 Oct 2022 09:44:06 +0800 From: Weilong Chen To: , , , , , CC: , , Subject: [PATCH next v8 2/2] dt-bindings: i2c: add entry for hisilicon,i2c-ascend910 Date: Mon, 24 Oct 2022 09:51:51 +0800 Message-ID: <20221024015151.342651-2-chenweilong@huawei.com> X-Mailer: git-send-email 2.31.GIT In-Reply-To: <20221024015151.342651-1-chenweilong@huawei.com> References: <20221024015151.342651-1-chenweilong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) 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?1747532811380135351?= X-GMAIL-MSGID: =?utf-8?q?1747532811380135351?= Add the new compatible for HiSilicon i2c. Signed-off-by: Weilong Chen Reviewed-by: Rob Herring --- Change since v7: - Fix yamllint errors, rename i2c-xxx to i2c-ascend910 Link: https://lore.kernel.org/all/166635752527.3428089.707277745439761591.robh@kernel.org/ .../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..918825a3026b --- /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 +--- +$id: "http://devicetree.org/schemas/i2c/hisilicon,i2c-ascend910.yaml#" +$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..5e5e4a3f5ada 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-ascend910.yaml F: drivers/i2c/busses/i2c-hisi.c HISILICON LPC BUS DRIVER