cregit-Linux how code gets into the kernel

Release 4.14 drivers/regulator/tps65086-regulator.c

/*
 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Author: Andrew F. Davis <afd@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether expressed or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License version 2 for more details.
 *
 * Based on the TPS65912 driver
 */

#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>

#include <linux/mfd/tps65086.h>









enum tps65086_regulators { BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, LDOA1,
	





LDOA2, LDOA3, SWA1, SWB1, SWB2, VTT };


#define TPS65086_REGULATOR(_name, _of, _id, _nv, _vr, _vm, _er, _em, _lr, _dr, _dm)	\
	[_id] = {                                                       \
                .desc = {                                               \
                        .name                   = _name,                \
                        .of_match               = of_match_ptr(_of),    \
                        .regulators_node        = "regulators",         \
                        .of_parse_cb            = tps65086_of_parse_cb, \
                        .id                     = _id,                  \
                        .ops                    = &reg_ops,             \
                        .n_voltages             = _nv,                  \
                        .type                   = REGULATOR_VOLTAGE,    \
                        .owner                  = THIS_MODULE,          \
                        .vsel_reg               = _vr,                  \
                        .vsel_mask              = _vm,                  \
                        .enable_reg             = _er,                  \
                        .enable_mask            = _em,                  \
                        .volt_table             = NULL,                 \
                        .linear_ranges          = _lr,                  \
                        .n_linear_ranges        = ARRAY_SIZE(_lr),      \
                },                                                      \
                .decay_reg = _dr,                                       \
                .decay_mask = _dm,                                      \
        }


#define TPS65086_SWITCH(_name, _of, _id, _er, _em)			\
	[_id] = {                                                       \
                .desc = {                                               \
                        .name                   = _name,                \
                        .of_match               = of_match_ptr(_of),    \
                        .regulators_node        = "regulators",         \
                        .of_parse_cb            = tps65086_of_parse_cb, \
                        .id                     = _id,                  \
                        .ops                    = &switch_ops,          \
                        .type                   = REGULATOR_VOLTAGE,    \
                        .owner                  = THIS_MODULE,          \
                        .enable_reg             = _er,                  \
                        .enable_mask            = _em,                  \
                },                                                      \
        }


struct tps65086_regulator {
	
struct regulator_desc desc;
	
unsigned int decay_reg;
	
unsigned int decay_mask;
};


static const struct regulator_linear_range tps65086_10mv_ranges[] = {
	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
	REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000),
};


static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = {
	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
	REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0),
	REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000),
};


static const struct regulator_linear_range tps65086_buck345_25mv_ranges[] = {
	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
	REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000),
};


static const struct regulator_linear_range tps65086_ldoa1_ranges[] = {
	REGULATOR_LINEAR_RANGE(1350000, 0x0, 0x0, 0),
	REGULATOR_LINEAR_RANGE(1500000, 0x1, 0x7, 100000),
	REGULATOR_LINEAR_RANGE(2300000, 0x8, 0xA, 100000),
	REGULATOR_LINEAR_RANGE(2700000, 0xB, 0xD, 150000),
	REGULATOR_LINEAR_RANGE(3300000, 0xE, 0xE, 0),
};


static const struct regulator_linear_range tps65086_ldoa23_ranges[] = {
	REGULATOR_LINEAR_RANGE(700000, 0x0, 0xD, 50000),
	REGULATOR_LINEAR_RANGE(1400000, 0xE, 0xF, 100000),
};

/* Operations permitted on regulators */

static struct regulator_ops reg_ops = {
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.map_voltage		= regulator_map_voltage_linear_range,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.list_voltage		= regulator_list_voltage_linear_range,
};

/* Operations permitted on load switches */

static struct regulator_ops switch_ops = {
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
};

static int tps65086_of_parse_cb(struct device_node *dev,
				const struct regulator_desc *desc,
				struct regulator_config *config);


static struct tps65086_regulator regulators[] = {
	TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL,
			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0),
			   tps65086_10mv_ranges, TPS65086_BUCK1CTRL,
			   BIT(0)),
	TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL,
			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1),
			   tps65086_10mv_ranges, TPS65086_BUCK2CTRL,
			   BIT(0)),
	TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID,
			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2),
			   tps65086_10mv_ranges, TPS65086_BUCK3DECAY,
			   BIT(0)),
	TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID,
			   BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0),
			   tps65086_10mv_ranges, TPS65086_BUCK4VID,
			   BIT(0)),
	TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID,
			   BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0),
			   tps65086_10mv_ranges, TPS65086_BUCK5CTRL,
			   BIT(0)),
	TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID,
			   BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0),
			   tps65086_10mv_ranges, TPS65086_BUCK6CTRL,
			   BIT(0)),
	TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL,
			   VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0),
			   tps65086_ldoa1_ranges, 0, 0),
	TPS65086_REGULATOR("LDOA2", "ldoa2", LDOA2, 0x10, TPS65086_LDOA2VID,
			   VDOA23_VID_MASK, TPS65086_LDOA2CTRL, BIT(0),
			   tps65086_ldoa23_ranges, 0, 0),
	TPS65086_REGULATOR("LDOA3", "ldoa3", LDOA3, 0x10, TPS65086_LDOA3VID,
			   VDOA23_VID_MASK, TPS65086_LDOA3CTRL, BIT(0),
			   tps65086_ldoa23_ranges, 0, 0),
	TPS65086_SWITCH("SWA1", "swa1", SWA1, TPS65086_SWVTT_EN, BIT(5)),
	TPS65086_SWITCH("SWB1", "swb1", SWB1, TPS65086_SWVTT_EN, BIT(6)),
	TPS65086_SWITCH("SWB2", "swb2", SWB2, TPS65086_SWVTT_EN, BIT(7)),
	TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
};


static int tps65086_of_parse_cb(struct device_node *node, const struct regulator_desc *desc, struct regulator_config *config) { int ret; /* Check for 25mV step mode */ if (of_property_read_bool(node, "ti,regulator-step-size-25mv")) { switch (desc->id) { case BUCK1: case BUCK2: case BUCK6: regulators[desc->id].desc.linear_ranges = tps65086_buck126_25mv_ranges; regulators[desc->id].desc.n_linear_ranges = ARRAY_SIZE(tps65086_buck126_25mv_ranges); break; case BUCK3: case BUCK4: case BUCK5: regulators[desc->id].desc.linear_ranges = tps65086_buck345_25mv_ranges; regulators[desc->id].desc.n_linear_ranges = ARRAY_SIZE(tps65086_buck345_25mv_ranges); break; default: dev_warn(config->dev, "25mV step mode only valid for BUCK regulators\n"); } } /* Check for decay mode */ if (desc->id <= BUCK6 && of_property_read_bool(node, "ti,regulator-decay")) { ret = regmap_write_bits(config->regmap, regulators[desc->id].decay_reg, regulators[desc->id].decay_mask, regulators[desc->id].decay_mask); if (ret) { dev_err(config->dev, "Error setting decay\n"); return ret; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis208100.00%3100.00%
Total208100.00%3100.00%


static int tps65086_regulator_probe(struct platform_device *pdev) { struct tps65086 *tps = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; struct regulator_dev *rdev; int i; platform_set_drvdata(pdev, tps); config.dev = &pdev->dev; config.dev->of_node = tps->dev->of_node; config.driver_data = tps; config.regmap = tps->regmap; for (i = 0; i < ARRAY_SIZE(regulators); i++) { rdev = devm_regulator_register(&pdev->dev, &regulators[i].desc, &config); if (IS_ERR(rdev)) { dev_err(tps->dev, "failed to register %s regulator\n", pdev->name); return PTR_ERR(rdev); } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis151100.00%2100.00%
Total151100.00%2100.00%

static const struct platform_device_id tps65086_regulator_id_table[] = { { "tps65086-regulator", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(platform, tps65086_regulator_id_table); static struct platform_driver tps65086_regulator_driver = { .driver = { .name = "tps65086-regulator", }, .probe = tps65086_regulator_probe, .id_table = tps65086_regulator_id_table, }; module_platform_driver(tps65086_regulator_driver); MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); MODULE_DESCRIPTION("TPS65086 Regulator driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis1165100.00%6100.00%
Total1165100.00%6100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.