From patchwork Tue Feb 21 10:39:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sahin, Okan" X-Patchwork-Id: 655521 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C9E9C61DA3 for ; Tue, 21 Feb 2023 10:41:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233703AbjBUKla (ORCPT ); Tue, 21 Feb 2023 05:41:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233513AbjBUKl2 (ORCPT ); Tue, 21 Feb 2023 05:41:28 -0500 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A00A725E1A; Tue, 21 Feb 2023 02:41:25 -0800 (PST) Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31L8piuV024973; Tue, 21 Feb 2023 05:41:02 -0500 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3nvdwdckar-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 05:41:01 -0500 Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 31LAf02F023076 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 21 Feb 2023 05:41:00 -0500 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) 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; Tue, 21 Feb 2023 05:40:59 -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; Tue, 21 Feb 2023 05:40:59 -0500 Received: from okan.localdomain (IST-LT-43126.ad.analog.com [10.25.36.24]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 31LAdbGw012847; Tue, 21 Feb 2023 05:40:47 -0500 From: Okan Sahin To: CC: Lee Jones , Rob Herring , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Jonathan Cameron , Lars-Peter Clausen , Andy Shevchenko , Marcelo Schmitt , ChiYuan Huang , Lad Prabhakar , Marcus Folkesson , William Breathitt Gray , Ramona Bolboaca , Caleb Connolly , , , Subject: [PATCH v5 2/5] regulator: max77541: Add ADI MAX77541/MAX77540 Regulator Support Date: Tue, 21 Feb 2023 13:39:10 +0300 Message-ID: <20230221103926.49597-3-okan.sahin@analog.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230221103926.49597-1-okan.sahin@analog.com> References: <20230221103926.49597-1-okan.sahin@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: oOcyJlqxsz2f26NDmZ7yqeBDfbermXnC X-Proofpoint-ORIG-GUID: oOcyJlqxsz2f26NDmZ7yqeBDfbermXnC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-21_06,2023-02-20_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 phishscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=999 spamscore=0 mlxscore=0 bulkscore=0 adultscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302210092 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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 --- drivers/regulator/Kconfig | 9 ++ drivers/regulator/Makefile | 1 + drivers/regulator/max77541-regulator.c | 154 +++++++++++++++++++++++++ 3 files changed, 164 insertions(+) create mode 100644 drivers/regulator/max77541-regulator.c 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..75063e8de09d --- /dev/null +++ b/drivers/regulator/max77541-regulator.c @@ -0,0 +1,154 @@ +// 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 + +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, +}; + +enum max77541_regulators { + MAX77541_BUCK1 = 1, + MAX77541_BUCK2, +}; + +#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), +}; + +static int max77541_regulator_probe(struct platform_device *pdev) +{ + struct regulator_config config = {}; + const struct regulator_desc *desc; + struct device *dev = &pdev->dev; + struct regulator_dev *rdev; + struct max77541 *max77541; + int i; + + max77541 = dev_get_drvdata(dev->parent); + config.dev = dev->parent; + + switch (max77541->chip->id) { + case MAX77540: + desc = max77540_regulators_desc; + break; + case MAX77541: + desc = max77541_regulators_desc; + break; + default: + return -EINVAL; + } + + for (i = 0; i < MAX77541_MAX_REGULATORS; i++) { + rdev = devm_regulator_register(dev, &desc[i], &config); + if (IS_ERR(rdev)) + return dev_err_probe(dev, PTR_ERR(rdev), + "Failed to register regulator\n"); + } + + return 0; +} + +static const struct platform_device_id max77541_regulator_platform_id[] = { + { "max77540-regulator" }, + { "max77541-regulator" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, max77541_regulator_platform_id); + +static struct platform_driver max77541_regulator_driver = { + .driver = { + .name = "max77541-regulator", + }, + .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");