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[2620:137:e000::1:20]) by mx.google.com with ESMTP id b7-20020a056402350700b00461f10cb543si4207477edd.154.2022.12.07.01.13.51; Wed, 07 Dec 2022 01:14:14 -0800 (PST) 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 S229990AbiLGJMo (ORCPT + 99 others); Wed, 7 Dec 2022 04:12:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230089AbiLGJMO (ORCPT ); Wed, 7 Dec 2022 04:12:14 -0500 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C33372FC04; Wed, 7 Dec 2022 01:12:05 -0800 (PST) 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 2B78URlJ003955; Wed, 7 Dec 2022 04:11:42 -0500 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3m816bfjyr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 07 Dec 2022 04:11:41 -0500 Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 2B79BeM2045869 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 7 Dec 2022 04:11:40 -0500 Received: from ASHBCASHYB5.ad.analog.com (10.64.17.133) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Wed, 7 Dec 2022 04:11:39 -0500 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBCASHYB5.ad.analog.com (10.64.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Wed, 7 Dec 2022 04:11:39 -0500 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Wed, 7 Dec 2022 04:11:37 -0500 Received: from okan.localdomain ([10.158.19.61]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 2B799G9X029801; Wed, 7 Dec 2022 04:11:17 -0500 From: Okan Sahin To: CC: Okan Sahin , Lee Jones , "Rob Herring" , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Jonathan Cameron , Lars-Peter Clausen , Andy Shevchenko , Marcelo Schmitt , ChiYuan Huang , "Geert Uytterhoeven" , Marcus Folkesson , Caleb Connolly , Anand Ashok Dumbre , Ramona Bolboaca , William Breathitt Gray , Manish Narani , , , Subject: [PATCH 3/5] staging: drivers: regulator: Add MAX77541 Regulator Support Date: Wed, 7 Dec 2022 12:08:42 +0300 Message-ID: <20221207090906.5896-4-okan.sahin@analog.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221207090906.5896-1-okan.sahin@analog.com> References: <20221207090906.5896-1-okan.sahin@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: _wawgfvLKz0bA9QpYWNq403yJl0YRfVH X-Proofpoint-ORIG-GUID: _wawgfvLKz0bA9QpYWNq403yJl0YRfVH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-07_04,2022-12-06_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 spamscore=0 adultscore=0 clxscore=1015 mlxscore=0 mlxlogscore=999 priorityscore=1501 suspectscore=0 bulkscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2212070076 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2,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?1751546021602696544?= X-GMAIL-MSGID: =?utf-8?q?1751546021602696544?= This patch adds regulator driver for both MAX77541 and MAX77540. The MAX77541 is a high-efficiency step-down converter with two 3A switching phases for single-cell Li+ battery and 5VDC systems. The MAX77540 is a high-efficiency step-down converter with two 3A switching phases. Signed-off-by: Okan Sahin --- MAINTAINERS | 1 + drivers/regulator/Kconfig | 9 ++ drivers/regulator/Makefile | 1 + drivers/regulator/max77541-regulator.c | 181 +++++++++++++++++++++++++ 4 files changed, 192 insertions(+) create mode 100644 drivers/regulator/max77541-regulator.c diff --git a/MAINTAINERS b/MAINTAINERS index 22f5a9c490e3..5704ed5afce3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12503,6 +12503,7 @@ L: linux-kernel@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/mfd/adi,max77541.yaml F: drivers/mfd/max77541.c +F: drivers/regulator/max77541-regulator.c F: include/linux/mfd/max77541.h MAXIM MAX77650 PMIC MFD DRIVER diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 070e4403c6c2..1e416c195af9 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -556,6 +556,15 @@ config REGULATOR_MAX597X The MAX5970/5978 is a smart switch with no output regulation, but fault protection and voltage and current monitoring capabilities. +config REGULATOR_MAX77541 + tristate "Analog Devices MAX77541/77540 Regulator" + depends on MFD_MAX77541 + help + This driver controls a Analog Devices MAX77541/77540 regulators + via I2C bus. Both MAX77540 and MAX77541 are dual-phase + high-efficiency buck converter. Say Y here to + enable the regulator driver. + config REGULATOR_MAX77620 tristate "Maxim 77620/MAX20024 voltage regulator" depends on MFD_MAX77620 || COMPILE_TEST diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 5962307e1130..c19efc7cfbef 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -68,6 +68,7 @@ obj-$(CONFIG_REGULATOR_LTC3676) += ltc3676.o obj-$(CONFIG_REGULATOR_MAX14577) += max14577-regulator.o obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o obj-$(CONFIG_REGULATOR_MAX597X) += max597x-regulator.o +obj-$(CONFIG_REGULATOR_MAX77541) += max77541-regulator.o obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o obj-$(CONFIG_REGULATOR_MAX77650) += max77650-regulator.o obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o diff --git a/drivers/regulator/max77541-regulator.c b/drivers/regulator/max77541-regulator.c new file mode 100644 index 000000000000..9204b15f8eed --- /dev/null +++ b/drivers/regulator/max77541-regulator.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2022 Analog Devices, Inc. + * ADI Regulator driver for the MAX77540 and MAX77541 + * + */ + +#include +#include +#include +#include +#include +#include + +static const struct regulator_ops max77541_buck_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .list_voltage = regulator_list_voltage_pickable_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, + .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap, +}; + +static const struct linear_range max77540_buck_ranges[] = { + /* Ranges when VOLT_SEL bits are 0x00 */ + REGULATOR_LINEAR_RANGE(500000, 0x00, 0x8B, 5000), + REGULATOR_LINEAR_RANGE(1200000, 0x8C, 0xFF, 0), + /* Ranges when VOLT_SEL bits are 0x40 */ + REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x8B, 10000), + REGULATOR_LINEAR_RANGE(2400000, 0x8C, 0xFF, 0), + /* Ranges when VOLT_SEL bits are 0x80 */ + REGULATOR_LINEAR_RANGE(2000000, 0x00, 0x9F, 20000), + REGULATOR_LINEAR_RANGE(5200000, 0xA0, 0xFF, 0), +}; + +static const struct linear_range max77541_buck_ranges[] = { + /* Ranges when VOLT_SEL bits are 0x00 */ + REGULATOR_LINEAR_RANGE(300000, 0x00, 0xB3, 5000), + REGULATOR_LINEAR_RANGE(1200000, 0xB4, 0xFF, 0), + /* Ranges when VOLT_SEL bits are 0x40 */ + REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x8B, 10000), + REGULATOR_LINEAR_RANGE(2400000, 0x8C, 0xFF, 0), + /* Ranges when VOLT_SEL bits are 0x80 */ + REGULATOR_LINEAR_RANGE(2000000, 0x00, 0x9F, 20000), + REGULATOR_LINEAR_RANGE(5200000, 0xA0, 0xFF, 0), +}; + +static const unsigned int max77541_buck_volt_range_sel[] = { + 0x00, 0x00, 0x40, 0x40, 0x80, 0x80 +}; + +#define MAX77540_BUCK(_id, _ops) \ + { .id = MAX77541_BUCK ## _id, \ + .name = "BUCK"#_id, \ + .of_match = "BUCK"#_id, \ + .regulators_node = "regulators", \ + .enable_reg = MAX77541_REG_EN_CTRL, \ + .enable_mask = MAX77541_BIT_M ## _id ## _EN, \ + .ops = &(_ops), \ + .type = REGULATOR_VOLTAGE, \ + .linear_ranges = max77540_buck_ranges, \ + .n_linear_ranges = ARRAY_SIZE(max77540_buck_ranges), \ + .vsel_reg = MAX77541_REG_M ## _id ## _VOUT, \ + .vsel_mask = MAX77541_BITS_MX_VOUT, \ + .vsel_range_reg = MAX77541_REG_M ## _id ## _CFG1, \ + .vsel_range_mask = MAX77541_BITS_MX_CFG1_RNG, \ + .linear_range_selectors = max77541_buck_volt_range_sel, \ + .owner = THIS_MODULE, \ + } + +#define MAX77541_BUCK(_id, _ops) \ + { .id = MAX77541_BUCK ## _id, \ + .name = "BUCK"#_id, \ + .of_match = "BUCK"#_id, \ + .regulators_node = "regulators", \ + .enable_reg = MAX77541_REG_EN_CTRL, \ + .enable_mask = MAX77541_BIT_M ## _id ## _EN, \ + .ops = &(_ops), \ + .type = REGULATOR_VOLTAGE, \ + .linear_ranges = max77541_buck_ranges, \ + .n_linear_ranges = ARRAY_SIZE(max77541_buck_ranges), \ + .vsel_reg = MAX77541_REG_M ## _id ## _VOUT, \ + .vsel_mask = MAX77541_BITS_MX_VOUT, \ + .vsel_range_reg = MAX77541_REG_M ## _id ## _CFG1, \ + .vsel_range_mask = MAX77541_BITS_MX_CFG1_RNG, \ + .linear_range_selectors = max77541_buck_volt_range_sel, \ + .owner = THIS_MODULE, \ + } + +static const struct regulator_desc max77540_regulators_desc[] = { + MAX77540_BUCK(1, max77541_buck_ops), + MAX77540_BUCK(2, max77541_buck_ops) +}; + +static const struct regulator_desc max77541_regulators_desc[] = { + MAX77541_BUCK(1, max77541_buck_ops), + MAX77541_BUCK(2, max77541_buck_ops) +}; + +struct max77541_regulator_dev { + struct device *dev; + struct max77541_dev *max77541; +}; + +static int max77541_regulator_probe(struct platform_device *pdev) +{ + struct max77541_dev *max77541 = dev_get_drvdata(pdev->dev.parent); + struct max77541_regulator_dev *regulator; + struct regulator_config config = {}; + struct regulator_dev *rdev; + int i; + + regulator = devm_kzalloc(&pdev->dev, sizeof(*regulator), GFP_KERNEL); + if (!regulator) + return -ENOMEM; + + regulator->dev = &pdev->dev; + regulator->max77541 = max77541; + + config.dev = pdev->dev.parent; + config.driver_data = regulator; + config.regmap = regulator->max77541->regmap; + + for (i = 0; i < MAX77541_MAX_REGULATORS; i++) { + switch (regulator->max77541->type) { + case MAX77540: + rdev = devm_regulator_register(&pdev->dev, + &max77540_regulators_desc[i], &config); + if (IS_ERR(rdev)) + return dev_err_probe(&pdev->dev, PTR_ERR(rdev), + "Failed to register regulator\n"); + break; + case MAX77541: + rdev = devm_regulator_register(&pdev->dev, + &max77541_regulators_desc[i], &config); + if (IS_ERR(rdev)) + return dev_err_probe(&pdev->dev, PTR_ERR(rdev), + "Failed to register regulator\n"); + break; + default: + return -EINVAL; + } + } + + return 0; +} + +static const struct platform_device_id max77541_regulator_platform_id[] = { + { "max77540-regulator", MAX77540 }, + { "max77541-regulator", MAX77541 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, max77541_regulator_platform_id); + +static const struct of_device_id max77541_regulator_of_id[] = { + { + .compatible = "adi,max77540-regulator", + .data = (void *)MAX77540, + }, + { + .compatible = "adi,max77541-regulator", + .data = (void *)MAX77541, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, max77541_regulator_of_id); + +static struct platform_driver max77541_regulator_driver = { + .driver = { + .name = "max77541-regulator", + .of_match_table = max77541_regulator_of_id, + }, + .probe = max77541_regulator_probe, + .id_table = max77541_regulator_platform_id, +}; + +module_platform_driver(max77541_regulator_driver); + +MODULE_AUTHOR("Okan Sahin "); +MODULE_DESCRIPTION("MAX77540/MAX77541 regulator driver"); +MODULE_LICENSE("GPL");