From mboxrd@z Thu Jan 1 00:00:00 1970 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 B3798C7EE2C for ; Mon, 8 May 2023 13:14:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233965AbjEHNOi (ORCPT ); Mon, 8 May 2023 09:14:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60340 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232161AbjEHNOb (ORCPT ); Mon, 8 May 2023 09:14:31 -0400 Received: from smtp2.axis.com (smtp2.axis.com [195.60.68.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 92A221FF3; Mon, 8 May 2023 06:14:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; q=dns/txt; s=axis-central1; t=1683551671; x=1715087671; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=31oPLS+7Hgm9X/Zm9Z+o/iZmWh0uhAjmSuXoswXLrTA=; b=a1s/M2JepKMlXJOhpyOMReaqpFkRq6ibF5rdJ+r9pTw+oSErfK/7H/Sb qjp47JIpI8XMoEHLfwmHZIAW+UI8083hfv4Wv62GyVJhb58fWec3QVb4g DX+erFxaxOI50TYY5CKVFD5H48Hh5BGPZRhudYHN6detL7czyY7IkHmn/ Q9idedCclEfvz8LmzpGmvlUFKT8yQqyJgZ1Qw76swx1G60cvcZl7AqsFr vKJcWzXT9mtQsvMiuS95ESssi8wVD/m7WmY19f+NIbH2n2AHanh2rUbs1 pcgIJDl5xno+krvNjyOxsQv7+apBdW+vccivnmCeoLvar/i5Iez2YveTz Q==; From: =?utf-8?q?M=C3=A5rten_Lindahl?= Date: Mon, 8 May 2023 15:14:08 +0200 Subject: [PATCH v3 2/2] regulator: Add support for TI TPS6287x regulators MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-ID: <20230502-tps6287x-driver-v3-2-e25140a023f5@axis.com> References: <20230502-tps6287x-driver-v3-0-e25140a023f5@axis.com> In-Reply-To: <20230502-tps6287x-driver-v3-0-e25140a023f5@axis.com> To: Liam Girdwood , Mark Brown , "Rob Herring" , Krzysztof Kozlowski CC: , , , =?utf-8?q?M=C3=A5rten_Lindahl?= X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1683551664; l=7321; i=marten.lindahl@axis.com; s=20230329; h=from:subject:message-id; bh=Kt3klOUPvbJLgJuPw9rVm9s3RwJlYgoyV77lgGlarnE=; b=qrxS931JcHo1GxxCZ1ZPZeZJFKP+EOvwK2ZEQPDUWfvusWP2zvwzN+fYDBC/dkALei7UwHYWE EoYxbKpuXvVD1e3dcxO/3zu92pCc8L2c5ryfap/Ba5Gt6f47m/Ck75Q X-Developer-Key: i=marten.lindahl@axis.com; a=ed25519; pk=JfbjqFPJnIDIQOkJBeatC8+S3Ax3N0RIdmN+fL3wXgw= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for Texas Instruments TPS6287x, single-channel synchronous step-down converters with four output voltage ranges. Signed-off-by: Mårten Lindahl --- drivers/regulator/Kconfig | 11 ++ drivers/regulator/Makefile | 1 + drivers/regulator/tps6287x-regulator.c | 188 +++++++++++++++++++++++++++++++++ 3 files changed, 200 insertions(+) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index aae28d0a489c..d7923ac53f53 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1374,6 +1374,17 @@ config REGULATOR_TPS6286X high-frequency synchronous step-down converters with an I2C interface. +config REGULATOR_TPS6287X + tristate "TI TPS6287x Power Regulator" + depends on I2C && OF + select REGMAP_I2C + help + This driver supports TPS6287x voltage regulator chips. These are + pin-to-pin high-frequency synchronous step-down dc-dc converters + with an I2C interface. + + If built as a module it will be called tps6287x-regulator. + config REGULATOR_TPS65023 tristate "TI TPS65023 Power regulators" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index ee383d8fc835..857995db3fa4 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -161,6 +161,7 @@ obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o obj-$(CONFIG_REGULATOR_TPS6286X) += tps6286x-regulator.o +obj-$(CONFIG_REGULATOR_TPS6287X) += tps6287x-regulator.o obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o obj-$(CONFIG_REGULATOR_TPS65086) += tps65086-regulator.o diff --git a/drivers/regulator/tps6287x-regulator.c b/drivers/regulator/tps6287x-regulator.c new file mode 100644 index 000000000000..d7fc82175493 --- /dev/null +++ b/drivers/regulator/tps6287x-regulator.c @@ -0,0 +1,188 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2023 Axis Communications AB + * + * Driver for Texas Instruments TPS6287x PMIC. + * Datasheet: https://www.ti.com/lit/ds/symlink/tps62873.pdf + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TPS6287X_VSET 0x00 +#define TPS6287X_CTRL1 0x01 +#define TPS6287X_CTRL1_VRAMP GENMASK(1, 0) +#define TPS6287X_CTRL1_FPWMEN BIT(4) +#define TPS6287X_CTRL1_SWEN BIT(5) +#define TPS6287X_CTRL2 0x02 +#define TPS6287X_CTRL2_VRANGE GENMASK(3, 2) +#define TPS6287X_CTRL3 0x03 +#define TPS6287X_STATUS 0x04 + +static const struct regmap_config tps6287x_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TPS6287X_STATUS, +}; + +static const struct linear_range tps6287x_voltage_ranges[] = { + LINEAR_RANGE(400000, 0, 0xFF, 1250), + LINEAR_RANGE(400000, 0, 0xFF, 2500), + LINEAR_RANGE(400000, 0, 0xFF, 5000), + LINEAR_RANGE(800000, 0, 0xFF, 10000), +}; + +static const unsigned int tps6287x_voltage_range_sel[] = { + 0x0, 0x4, 0x8, 0xC +}; + +static const unsigned int tps6287x_ramp_table[] = { + 10000, 5000, 1250, 500 +}; + +static int tps6287x_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + unsigned int val; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + val = 0; + break; + case REGULATOR_MODE_FAST: + val = TPS6287X_CTRL1_FPWMEN; + break; + default: + return -EINVAL; + } + + return regmap_update_bits(rdev->regmap, TPS6287X_CTRL1, + TPS6287X_CTRL1_FPWMEN, val); +} + +static unsigned int tps6287x_get_mode(struct regulator_dev *rdev) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, TPS6287X_CTRL1, &val); + if (ret < 0) + return 0; + + return (val & TPS6287X_CTRL1_FPWMEN) ? REGULATOR_MODE_FAST : + REGULATOR_MODE_NORMAL; +} + +static unsigned int tps6287x_of_map_mode(unsigned int mode) +{ + switch (mode) { + case REGULATOR_MODE_NORMAL: + case REGULATOR_MODE_FAST: + return mode; + default: + return REGULATOR_MODE_INVALID; + } +} + +static const struct regulator_ops tps6287x_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .set_mode = tps6287x_set_mode, + .get_mode = tps6287x_get_mode, + .is_enabled = regulator_is_enabled_regmap, + .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, + .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap, + .list_voltage = regulator_list_voltage_pickable_linear_range, + .set_ramp_delay = regulator_set_ramp_delay_regmap, +}; + +static struct regulator_desc tps6287x_reg = { + .name = "tps6287x", + .owner = THIS_MODULE, + .ops = &tps6287x_regulator_ops, + .of_map_mode = tps6287x_of_map_mode, + .type = REGULATOR_VOLTAGE, + .enable_reg = TPS6287X_CTRL1, + .enable_mask = TPS6287X_CTRL1_SWEN, + .vsel_reg = TPS6287X_VSET, + .vsel_mask = 0xFF, + .vsel_range_reg = TPS6287X_CTRL2, + .vsel_range_mask = TPS6287X_CTRL2_VRANGE, + .ramp_reg = TPS6287X_CTRL1, + .ramp_mask = TPS6287X_CTRL1_VRAMP, + .ramp_delay_table = tps6287x_ramp_table, + .n_ramp_values = ARRAY_SIZE(tps6287x_ramp_table), + .linear_ranges = tps6287x_voltage_ranges, + .n_linear_ranges = ARRAY_SIZE(tps6287x_voltage_ranges), + .linear_range_selectors = tps6287x_voltage_range_sel, +}; + +static int tps6287x_i2c_probe(struct i2c_client *i2c) +{ + struct device *dev = &i2c->dev; + struct regulator_config config = {}; + struct regulator_dev *rdev; + + config.regmap = devm_regmap_init_i2c(i2c, &tps6287x_regmap_config); + if (IS_ERR(config.regmap)) { + dev_err(dev, "Failed to init i2c\n"); + return PTR_ERR(config.regmap); + } + + config.dev = dev; + config.of_node = dev->of_node; + config.init_data = of_get_regulator_init_data(dev, dev->of_node, + &tps6287x_reg); + + rdev = devm_regulator_register(dev, &tps6287x_reg, &config); + if (IS_ERR(rdev)) { + dev_err(dev, "Failed to register regulator\n"); + return PTR_ERR(rdev); + } + + dev_dbg(dev, "Probed regulator\n"); + + return 0; +} + +static const struct of_device_id tps6287x_dt_ids[] = { + { .compatible = "ti,tps62870", }, + { .compatible = "ti,tps62871", }, + { .compatible = "ti,tps62872", }, + { .compatible = "ti,tps62873", }, + { } +}; + +MODULE_DEVICE_TABLE(of, tps6287x_dt_ids); + +static const struct i2c_device_id tps6287x_i2c_id[] = { + { "tps62870", 0 }, + { "tps62871", 0 }, + { "tps62872", 0 }, + { "tps62873", 0 }, + {}, +}; + +MODULE_DEVICE_TABLE(i2c, tps6287x_i2c_id); + +static struct i2c_driver tps6287x_regulator_driver = { + .driver = { + .name = "tps6287x", + .of_match_table = tps6287x_dt_ids, + }, + .probe_new = tps6287x_i2c_probe, + .id_table = tps6287x_i2c_id, +}; + +module_i2c_driver(tps6287x_regulator_driver); + +MODULE_AUTHOR("Mårten Lindahl "); +MODULE_DESCRIPTION("Regulator driver for TI TPS6287X PMIC"); +MODULE_LICENSE("GPL"); -- 2.30.2