Commit 4b7f4958 authored by Steve Twiss's avatar Steve Twiss Committed by Mark Brown
Browse files

regulator: da9061: BUCK and LDO regulator driver 



Regulator support for the DA9061 is added into the DA9062 regulator driver.

The regulators for DA9061 differ from those of DA9062.
A new DA9061 enumeration list for the LDOs and Bucks supported by this
device is added. Regulator information added: the old regulator
information for DA9062 is renamed from local_regulator_info[] to
local_da9062_regulator_info[] and a new array is added to support
local_da9061_regulator_info[].

The probe() function switches on the da9062_compatible_types enumeration
and configures the correct da9062_regulator_info array and number of
regulator entries.

Kconfig is updated to reflect support for DA9061 and DA9062 regulators.

Signed-off-by: default avatarSteve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2ea659a9

drivers/regulator/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -214,11 +214,11 @@ config REGULATOR_DA9055 
	  will be called da9055-regulator.



config REGULATOR_DA9062

	tristate "Dialog Semiconductor DA9062 regulators"

	tristate "Dialog Semiconductor DA9061/62 regulators"

	depends on MFD_DA9062

	help

	  Say y here to support the BUCKs and LDOs regulators found on

	  DA9062 PMICs.

	  DA9061 and DA9062 PMICs.



	  This driver can also be built as a module. If so, the module

	  will be called da9062-regulator.

drivers/regulator/da9062-regulator.c

+291 −12
Original line number Diff line number Diff line 
/*

 * da9062-regulator.c - REGULATOR device driver for DA9062

 * Copyright (C) 2015  Dialog Semiconductor Ltd.

 * Regulator device driver for DA9061 and DA9062.

 * Copyright (C) 2015-2017  Dialog Semiconductor

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License
@@ -27,6 +27,17 @@ 
#include <linux/mfd/da9062/registers.h>



/* Regulator IDs */

enum {

	DA9061_ID_BUCK1,

	DA9061_ID_BUCK2,

	DA9061_ID_BUCK3,

	DA9061_ID_LDO1,

	DA9061_ID_LDO2,

	DA9061_ID_LDO3,

	DA9061_ID_LDO4,

	DA9061_MAX_REGULATORS,

};



enum {

	DA9062_ID_BUCK1,

	DA9062_ID_BUCK2,
@@ -88,15 +99,21 @@ enum { 


/* Regulator operations */



/* Current limits array (in uA) BUCK1 and BUCK3.

   Entry indexes corresponds to register values. */

/* Current limits array (in uA)

 * - DA9061_ID_[BUCK1|BUCK3]

 * - DA9062_ID_[BUCK1|BUCK2|BUCK4]

 * Entry indexes corresponds to register values.

 */

static const int da9062_buck_a_limits[] = {

	 500000,  600000,  700000,  800000,  900000, 1000000, 1100000, 1200000,

	1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000

};



/* Current limits array (in uA) for BUCK2.

   Entry indexes corresponds to register values. */

/* Current limits array (in uA)

 * - DA9061_ID_BUCK2

 * - DA9062_ID_BUCK3

 * Entry indexes corresponds to register values.

 */

static const int da9062_buck_b_limits[] = {

	1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,

	2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
@@ -405,8 +422,254 @@ static const struct regulator_ops da9062_ldo_ops = { 
	.set_suspend_mode	= da9062_ldo_set_suspend_mode,

};



/* Regulator information */

static const struct da9062_regulator_info local_regulator_info[] = {

/* DA9061 Regulator information */

static const struct da9062_regulator_info local_da9061_regulator_info[] = {

	{

		.desc.id = DA9061_ID_BUCK1,

		.desc.name = "DA9061 BUCK1",

		.desc.of_match = of_match_ptr("buck1"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_buck_ops,

		.desc.min_uV = (300) * 1000,

		.desc.uV_step = (10) * 1000,

		.desc.n_voltages = ((1570) - (300))/(10) + 1,

		.current_limits = da9062_buck_a_limits,

		.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),

		.desc.enable_reg = DA9062AA_BUCK1_CONT,

		.desc.enable_mask = DA9062AA_BUCK1_EN_MASK,

		.desc.vsel_reg = DA9062AA_VBUCK1_A,

		.desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VBUCK1_A,

			__builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,

			__builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VBUCK1_B,

		.mode = REG_FIELD(DA9062AA_BUCK1_CFG,

			__builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),

		.ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_C,

			__builtin_ffs((int)DA9062AA_BUCK1_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK1_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_BUCK2,

		.desc.name = "DA9061 BUCK2",

		.desc.of_match = of_match_ptr("buck2"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_buck_ops,

		.desc.min_uV = (800) * 1000,

		.desc.uV_step = (20) * 1000,

		.desc.n_voltages = ((3340) - (800))/(20) + 1,

		.current_limits = da9062_buck_b_limits,

		.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),

		.desc.enable_reg = DA9062AA_BUCK3_CONT,

		.desc.enable_mask = DA9062AA_BUCK3_EN_MASK,

		.desc.vsel_reg = DA9062AA_VBUCK3_A,

		.desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VBUCK3_A,

			__builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,

			__builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VBUCK3_B,

		.mode = REG_FIELD(DA9062AA_BUCK3_CFG,

			__builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VBUCK3_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VBUCK3_SEL_MASK)) - 1),

		.ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_A,

			__builtin_ffs((int)DA9062AA_BUCK3_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK3_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_BUCK3,

		.desc.name = "DA9061 BUCK3",

		.desc.of_match = of_match_ptr("buck3"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_buck_ops,

		.desc.min_uV = (530) * 1000,

		.desc.uV_step = (10) * 1000,

		.desc.n_voltages = ((1800) - (530))/(10) + 1,

		.current_limits = da9062_buck_a_limits,

		.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),

		.desc.enable_reg = DA9062AA_BUCK4_CONT,

		.desc.enable_mask = DA9062AA_BUCK4_EN_MASK,

		.desc.vsel_reg = DA9062AA_VBUCK4_A,

		.desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VBUCK4_A,

			__builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,

			__builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VBUCK4_B,

		.mode = REG_FIELD(DA9062AA_BUCK4_CFG,

			__builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VBUCK4_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VBUCK4_SEL_MASK)) - 1),

		.ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_B,

			__builtin_ffs((int)DA9062AA_BUCK4_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_BUCK4_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_LDO1,

		.desc.name = "DA9061 LDO1",

		.desc.of_match = of_match_ptr("ldo1"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_ldo_ops,

		.desc.min_uV = (900) * 1000,

		.desc.uV_step = (50) * 1000,

		.desc.n_voltages = ((3600) - (900))/(50) + 1,

		.desc.enable_reg = DA9062AA_LDO1_CONT,

		.desc.enable_mask = DA9062AA_LDO1_EN_MASK,

		.desc.vsel_reg = DA9062AA_VLDO1_A,

		.desc.vsel_mask = DA9062AA_VLDO1_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VLDO1_A,

			__builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,

			__builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VLDO1_B,

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),

		.oc_event = REG_FIELD(DA9062AA_STATUS_D,

			__builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_LDO2,

		.desc.name = "DA9061 LDO2",

		.desc.of_match = of_match_ptr("ldo2"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_ldo_ops,

		.desc.min_uV = (900) * 1000,

		.desc.uV_step = (50) * 1000,

		.desc.n_voltages = ((3600) - (600))/(50) + 1,

		.desc.enable_reg = DA9062AA_LDO2_CONT,

		.desc.enable_mask = DA9062AA_LDO2_EN_MASK,

		.desc.vsel_reg = DA9062AA_VLDO2_A,

		.desc.vsel_mask = DA9062AA_VLDO2_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VLDO2_A,

			__builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,

			__builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VLDO2_B,

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),

		.oc_event = REG_FIELD(DA9062AA_STATUS_D,

			__builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_LDO3,

		.desc.name = "DA9061 LDO3",

		.desc.of_match = of_match_ptr("ldo3"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_ldo_ops,

		.desc.min_uV = (900) * 1000,

		.desc.uV_step = (50) * 1000,

		.desc.n_voltages = ((3600) - (900))/(50) + 1,

		.desc.enable_reg = DA9062AA_LDO3_CONT,

		.desc.enable_mask = DA9062AA_LDO3_EN_MASK,

		.desc.vsel_reg = DA9062AA_VLDO3_A,

		.desc.vsel_mask = DA9062AA_VLDO3_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VLDO3_A,

			__builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,

			__builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VLDO3_B,

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),

		.oc_event = REG_FIELD(DA9062AA_STATUS_D,

			__builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),

	},

	{

		.desc.id = DA9061_ID_LDO4,

		.desc.name = "DA9061 LDO4",

		.desc.of_match = of_match_ptr("ldo4"),

		.desc.regulators_node = of_match_ptr("regulators"),

		.desc.ops = &da9062_ldo_ops,

		.desc.min_uV = (900) * 1000,

		.desc.uV_step = (50) * 1000,

		.desc.n_voltages = ((3600) - (900))/(50) + 1,

		.desc.enable_reg = DA9062AA_LDO4_CONT,

		.desc.enable_mask = DA9062AA_LDO4_EN_MASK,

		.desc.vsel_reg = DA9062AA_VLDO4_A,

		.desc.vsel_mask = DA9062AA_VLDO4_A_MASK,

		.desc.linear_min_sel = 0,

		.sleep = REG_FIELD(DA9062AA_VLDO4_A,

			__builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),

		.suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,

			__builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),

		.suspend_vsel_reg = DA9062AA_VLDO4_B,

		.suspend = REG_FIELD(DA9062AA_DVC_1,

			__builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),

		.oc_event = REG_FIELD(DA9062AA_STATUS_D,

			__builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,

			sizeof(unsigned int) * 8 -

			__builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),

	},

};



/* DA9062 Regulator information */

static const struct da9062_regulator_info local_da9062_regulator_info[] = {

	{

		.desc.id = DA9062_ID_BUCK1,

		.desc.name = "DA9062 BUCK1",
@@ -727,17 +990,33 @@ static int da9062_regulator_probe(struct platform_device *pdev) 
	struct da9062_regulators *regulators;

	struct da9062_regulator *regl;

	struct regulator_config config = { };

	const struct da9062_regulator_info *rinfo;

	int irq, n, ret;

	size_t size;

	int max_regulators;



	switch (chip->chip_type) {

	case COMPAT_TYPE_DA9061:

		max_regulators = DA9061_MAX_REGULATORS;

		rinfo = local_da9061_regulator_info;

		break;

	case COMPAT_TYPE_DA9062:

		max_regulators = DA9062_MAX_REGULATORS;

		rinfo = local_da9062_regulator_info;

		break;

	default:

		dev_err(chip->dev, "Unrecognised chip type\n");

		return -ENODEV;

	}



	/* Allocate memory required by usable regulators */

	size = sizeof(struct da9062_regulators) +

		DA9062_MAX_REGULATORS * sizeof(struct da9062_regulator);

		max_regulators * sizeof(struct da9062_regulator);

	regulators = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);

	if (!regulators)

		return -ENOMEM;



	regulators->n_regulators = DA9062_MAX_REGULATORS;

	regulators->n_regulators = max_regulators;

	platform_set_drvdata(pdev, regulators);



	n = 0;
@@ -745,7 +1024,7 @@ static int da9062_regulator_probe(struct platform_device *pdev) 
		/* Initialise regulator structure */

		regl = &regulators->regulator[n];

		regl->hw = chip;

		regl->info = &local_regulator_info[n];

		regl->info = &rinfo[n];

		regl->desc = regl->info->desc;

		regl->desc.type = REGULATOR_VOLTAGE;

		regl->desc.owner = THIS_MODULE;
@@ -836,6 +1115,6 @@ module_exit(da9062_regulator_cleanup); 


/* Module information */

MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");

MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062");

MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");

MODULE_LICENSE("GPL");

MODULE_ALIAS("platform:da9062-regulators");

CRA Git | Maintained and supported by SUSTech CRA and CCSE