From patchwork Thu Jul 27 09:54:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sahin, Okan" X-Patchwork-Id: 126891 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a985:0:b0:3e4:2afc:c1 with SMTP id t5csp1003590vqo; Thu, 27 Jul 2023 03:40:48 -0700 (PDT) X-Google-Smtp-Source: APBJJlGWwf6eWbODfiBSohmlfbtLjFoVzuXJ4i/Pce6olp9EGhFFlkyy42hUMnOifeXcmNffdLtw X-Received: by 2002:a05:6358:4186:b0:12c:d474:3c99 with SMTP id w6-20020a056358418600b0012cd4743c99mr1872363rwc.31.1690454448282; Thu, 27 Jul 2023 03:40:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690454448; cv=none; d=google.com; s=arc-20160816; b=lCsXJOouJvNvEYUTG1Bga7jyzF12yLe0c+5p/3JDib6bxkBBeMTriqGDO/pgA5MXZy cQ8B22bHCIjuLxS0nME7trdLaxQz34rRuFSHgVrCMk8UiOCbRCjkRmx1Ro6vF9YgQBgd xn92ZAnl1WDF9x4M32i4N2hB6Fe6kmHpeWdx4+gdmPrh6Sqvg8Ihf9DNxXVSwb/HEZhC vAdiPBiAW3Zz0VscFQ6TxTMKGTDOPzOk5WdJueELiUkW8RcmD0MQo02lO1rnJqb4DSv2 9Cik3niENzJ4EzqfOI1qqJ8OzUAgzPzT8nVFmLpPtIt8kSuLruN+NXOb2KWVs9xhsZd+ 77sQ== 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=OWf3/QzbjNXxOh6EJkYmwO/B1tfWOAEuGApnIWArWOA=; fh=d/0EcIKwGwtM9dTfl/zL4aGsiVBeIP6TkXcWEpoznfs=; b=qQQVIn6j/dobB6noKadN3veI9R6nmHENHER2kd4j9FyeUnVkLdeHYnvRVuEkbNb+WU 86W21ayBg9Orn/ZdnECkdmWLziFgbR4EUjWKbBxfZ22Xq+0jER/DBpI/ZxgFdcd75ZWY 9PQoUPfPwstH3zNDyUpd/rBlu/GkxICyfvA2J/jFMM17n7TCDT5tBNQt0QB/zsmhar8p 05sL4Ys6N87ijC781ho8KtulvzGC9t6+dWzLn33YSzXVyK0Zj5tImTfiMBSonEdA+PU8 Nv40LzO/ueSci2mhYTamYgPLuYwBiJ5TGPUJBHEcwdJ6psyWD6L4SOOSUPClCJpREjFN h/lw== 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=NONE sp=NONE dis=NONE) header.from=analog.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id z9-20020a637e09000000b0055fdd303745si1019978pgc.421.2023.07.27.03.40.34; Thu, 27 Jul 2023 03:40:48 -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=NONE sp=NONE dis=NONE) header.from=analog.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232469AbjG0Jz1 (ORCPT + 99 others); Thu, 27 Jul 2023 05:55:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232810AbjG0JzW (ORCPT ); Thu, 27 Jul 2023 05:55:22 -0400 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E2B419B; Thu, 27 Jul 2023 02:55:18 -0700 (PDT) Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36R75wAQ027818; Thu, 27 Jul 2023 05:55:14 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3s36afngf0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Jul 2023 05:55:14 -0400 Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 36R9tBfr029480 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 27 Jul 2023 05:55:11 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Thu, 27 Jul 2023 05:55:10 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Thu, 27 Jul 2023 05:55:10 -0400 Received: from okan.localdomain ([10.158.19.61]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 36R9snRS029827; Thu, 27 Jul 2023 05:55:01 -0400 From: Okan Sahin To: CC: Krzysztof Kozlowski , Linus Walleij , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , , , Subject: [PATCH v5 1/2] dt-bindings: gpio: ds4520: Add ADI DS4520 Date: Thu, 27 Jul 2023 12:54:29 +0300 Message-ID: <20230727095432.82591-2-okan.sahin@analog.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230727095432.82591-1-okan.sahin@analog.com> References: <20230727095432.82591-1-okan.sahin@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: aHiGbFXM4g2eAXTDwdfDeNiTCwhwj3Gb X-Proofpoint-ORIG-GUID: aHiGbFXM4g2eAXTDwdfDeNiTCwhwj3Gb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-26_08,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 phishscore=0 suspectscore=0 mlxscore=0 bulkscore=0 mlxlogscore=999 clxscore=1015 spamscore=0 impostorscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307270087 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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: INBOX X-GMAIL-THRID: 1772569963481695957 X-GMAIL-MSGID: 1772569963481695957 Add ADI DS4520 devicetree document. Signed-off-by: Okan Sahin Reviewed-by: Krzysztof Kozlowski Reviewed-by: Linus Walleij --- .../bindings/gpio/adi,ds4520-gpio.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/adi,ds4520-gpio.yaml diff --git a/Documentation/devicetree/bindings/gpio/adi,ds4520-gpio.yaml b/Documentation/devicetree/bindings/gpio/adi,ds4520-gpio.yaml new file mode 100644 index 000000000000..25b3198c4d3e --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/adi,ds4520-gpio.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/adi,ds4520-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DS4520 I2C GPIO expander + +maintainers: + - Okan Sahin + +properties: + compatible: + enum: + - adi,ds4520-gpio + + reg: + maxItems: 1 + + gpio-controller: true + + "#gpio-cells": + const: 2 + + ngpios: + minimum: 1 + maximum: 9 + +required: + - compatible + - reg + - gpio-controller + - "#gpio-cells" + - ngpios + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + gpio@50 { + compatible = "adi,ds4520-gpio"; + reg = <0x50>; + ngpios = <9>; + gpio-controller; + #gpio-cells = <2>; + }; + }; From patchwork Thu Jul 27 09:54:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sahin, Okan" X-Patchwork-Id: 126886 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a985:0:b0:3e4:2afc:c1 with SMTP id t5csp992640vqo; Thu, 27 Jul 2023 03:17:21 -0700 (PDT) X-Google-Smtp-Source: APBJJlHepZna4awTnLYDyts0QBxnOPc9qHTthiJZL8ks51DC4ErYAPaENkOQP1qsJZY8fIf1uWAV X-Received: by 2002:a05:6402:430f:b0:521:82d2:fa81 with SMTP id m15-20020a056402430f00b0052182d2fa81mr2255428edc.4.1690453040865; Thu, 27 Jul 2023 03:17:20 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690453040; cv=none; d=google.com; s=arc-20160816; b=tEqBUuSaMC/xdBGlzcgTP4vty/JKmKIBh3z3Sq6y0gnqH4PtVB1FwNYoHxLdbKAw3r 9zfWrxFP/rVNbae8fsev5XGZvRQGtPcFnLZVEFKSLv8QBkzLoRfVnSQp5joL/OHDjfwB +3EemhDp7EQvLfMrIdA1OjIrrwoEZ8Pn/T294sJAhHpfWqHfj8RsNgD7kMnci6AWNtED hWxp3ezeJKLouLH+Fz7+fRxvuErtZq9gmPeQk9O/7eQPP/97OcmVy6T+DHQ5wgdvR9az oekIacmFIl/sGWgbPhR0fxBgEhc1o0bFxA+VNBYDU9dx4tPmO6vtrL7p4kRLYEJL3MHG +NwA== 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=5T1A+3YuzId2N5uyLrEwXe6Ej6P2jllE+Q1PEmu+g6I=; fh=P00EuBDF4XpJQsjM4AE1z3Sbx7B6QAr6ahKq5EmHWHA=; b=sAm6cObc7KF1wWrx7xxipEo8xnWiVJ7Ao/7ACbJQ9h8QereeCjeADiZZ7QzOXKfxek k/1DDbWIH0D5TGg8nq/UaDZrF9iHKRHQEKyl3nW2YFooW1+0YjtkJMSwr+HEFiYVBA0X GvQdRSQroFqwvkC1Ii6F9sepRwHQk9oa81qLyHoSoOISsNsV1UMGOeNKtA9rbM9z5+0p ZDmnkWY43lFw8eSqtL0zIOsoG72fDmdt64HB2cosZpZIIuORkm4zmLYmQpz17gsnoSRN 1dr2w33kIoMus3fyNbMTleFzqb8ohwdB0uv6iSpt9DRHb0o3B2LyWqjhtrWwf/biQEx7 0ghw== 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=NONE sp=NONE dis=NONE) header.from=analog.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id u3-20020aa7d983000000b005222114ba0asi754702eds.390.2023.07.27.03.16.46; Thu, 27 Jul 2023 03:17:20 -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=NONE sp=NONE dis=NONE) header.from=analog.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232688AbjG0Jzc (ORCPT + 99 others); Thu, 27 Jul 2023 05:55:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232874AbjG0JzW (ORCPT ); Thu, 27 Jul 2023 05:55:22 -0400 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E81CF118; Thu, 27 Jul 2023 02:55:19 -0700 (PDT) Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36R6srq2027806; Thu, 27 Jul 2023 05:55:16 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3s36afngfg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Jul 2023 05:55:15 -0400 Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 36R9tEoQ029483 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 27 Jul 2023 05:55:14 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Thu, 27 Jul 2023 05:55:13 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Thu, 27 Jul 2023 05:55:13 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Thu, 27 Jul 2023 05:55:13 -0400 Received: from okan.localdomain ([10.158.19.61]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 36R9snRT029827; Thu, 27 Jul 2023 05:55:07 -0400 From: Okan Sahin To: CC: Linus Walleij , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , , , Subject: [PATCH v5 2/2] gpio: ds4520: Add ADI DS4520 GPIO Expander Support Date: Thu, 27 Jul 2023 12:54:30 +0300 Message-ID: <20230727095432.82591-3-okan.sahin@analog.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230727095432.82591-1-okan.sahin@analog.com> References: <20230727095432.82591-1-okan.sahin@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: GNeab-SzilAD6F6Hk4znl-MTF6719-9O X-Proofpoint-ORIG-GUID: GNeab-SzilAD6F6Hk4znl-MTF6719-9O X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-26_08,2023-07-26_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 phishscore=0 suspectscore=0 mlxscore=0 bulkscore=0 mlxlogscore=853 clxscore=1015 spamscore=0 impostorscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307270087 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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: INBOX X-GMAIL-THRID: 1772568487931701576 X-GMAIL-MSGID: 1772568487931701576 The DS4520 is a 9-bit nonvolatile (NV) I/O expander. It offers users a digitally programmable alternative to hardware jumpers and mechanical switches that are being used to control digital logic node. Signed-off-by: Okan Sahin Acked-by: Linus Walleij --- drivers/gpio/Kconfig | 11 ++++++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-ds4520.c | 80 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 drivers/gpio/gpio-ds4520.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 13be729710f2..5f89e46d6411 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1000,6 +1000,17 @@ config GPIO_ADNP enough to represent all pins, but the driver will assume a register layout for 64 pins (8 registers). +config GPIO_DS4520 + tristate "DS4520 I2C GPIO expander" + select REGMAP_I2C + select GPIO_REGMAP + help + GPIO driver for ADI DS4520 I2C-based GPIO expander. + Say yes here to enable the GPIO driver for the ADI DS4520 chip. + + To compile this driver as a module, choose M here: the module will + be called gpio-ds4520. + config GPIO_GW_PLD tristate "Gateworks PLD GPIO Expander" depends on OF_GPIO diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index c048ba003367..6f8656d5d617 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o obj-$(CONFIG_GPIO_DAVINCI) += gpio-davinci.o obj-$(CONFIG_GPIO_DLN2) += gpio-dln2.o +obj-$(CONFIG_GPIO_DS4520) += gpio-ds4520.o obj-$(CONFIG_GPIO_DWAPB) += gpio-dwapb.o obj-$(CONFIG_GPIO_EIC_SPRD) += gpio-eic-sprd.o obj-$(CONFIG_GPIO_EM) += gpio-em.o diff --git a/drivers/gpio/gpio-ds4520.c b/drivers/gpio/gpio-ds4520.c new file mode 100644 index 000000000000..1903deaef3e9 --- /dev/null +++ b/drivers/gpio/gpio-ds4520.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2023 Analog Devices, Inc. + * Driver for the DS4520 I/O Expander + */ + +#include +#include +#include +#include +#include +#include + +#define DS4520_PULLUP0 0xF0 +#define DS4520_IO_CONTROL0 0xF2 +#define DS4520_IO_STATUS0 0xF8 + +static const struct regmap_config ds4520_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int ds4520_gpio_probe(struct i2c_client *client) +{ + struct gpio_regmap_config config = { }; + struct device *dev = &client->dev; + struct regmap *regmap; + u32 ngpio; + u32 base; + int ret; + + ret = device_property_read_u32(dev, "reg", &base); + if (ret) + return dev_err_probe(dev, ret, "Missing 'reg' property.\n"); + + ret = device_property_read_u32(dev, "ngpios", &ngpio); + if (ret) + return dev_err_probe(dev, ret, "Missing 'ngpios' property.\n"); + + regmap = devm_regmap_init_i2c(client, &ds4520_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "Failed to allocate register map\n"); + + config.regmap = regmap; + config.parent = dev; + config.ngpio = ngpio; + + config.reg_dat_base = base + DS4520_IO_STATUS0; + config.reg_set_base = base + DS4520_PULLUP0; + config.reg_dir_out_base = base + DS4520_IO_CONTROL0; + + return PTR_ERR_OR_ZERO(devm_gpio_regmap_register(dev, &config)); +} + +static const struct of_device_id ds4520_gpio_of_match_table[] = { + { .compatible = "adi,ds4520-gpio" }, + { } +}; +MODULE_DEVICE_TABLE(of, ds4520_gpio_of_match_table); + +static const struct i2c_device_id ds4520_gpio_id_table[] = { + { "ds4520-gpio" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ds4520_gpio_id_table); + +static struct i2c_driver ds4520_gpio_driver = { + .driver = { + .name = "ds4520-gpio", + .of_match_table = ds4520_gpio_of_match_table, + }, + .probe = ds4520_gpio_probe, + .id_table = ds4520_gpio_id_table, +}; +module_i2c_driver(ds4520_gpio_driver); + +MODULE_DESCRIPTION("DS4520 I/O Expander"); +MODULE_AUTHOR("Okan Sahin "); +MODULE_LICENSE("GPL");