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Release 4.14 drivers/regulator/bd9571mwv-regulator.c

/*
 * ROHM BD9571MWV-M regulator driver
 *
 * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.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 TPS65086 driver
 *
 * NOTE: VD09 is missing
 */

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

#include <linux/mfd/bd9571mwv.h>







enum bd9571mwv_regulators { VD09, VD18, VD25, VD33, DVFS };


#define BD9571MWV_REG(_name, _of, _id, _ops, _vr, _vm, _nv, _min, _step, _lmin)\
	{                                                       \
                .name                   = _name,                \
                .of_match               = of_match_ptr(_of),    \
                .regulators_node        = "regulators",         \
                .id                     = _id,                  \
                .ops                    = &_ops,                \
                .n_voltages             = _nv,                  \
                .type                   = REGULATOR_VOLTAGE,    \
                .owner                  = THIS_MODULE,          \
                .vsel_reg               = _vr,                  \
                .vsel_mask              = _vm,                  \
                .min_uV                 = _min,                 \
                .uV_step                = _step,                \
                .linear_min_sel         = _lmin,                \
        }


static int bd9571mwv_avs_get_moni_state(struct regulator_dev *rdev) { unsigned int val; int ret; ret = regmap_read(rdev->regmap, BD9571MWV_AVS_SET_MONI, &val); if (ret != 0) return ret; return val & BD9571MWV_AVS_SET_MONI_MASK; }

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Marek Vašut4597.83%150.00%
Axel Lin12.17%150.00%
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static int bd9571mwv_avs_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned int sel) { int ret; ret = bd9571mwv_avs_get_moni_state(rdev); if (ret < 0) return ret; return regmap_write_bits(rdev->regmap, BD9571MWV_AVS_VD09_VID(ret), rdev->desc->vsel_mask, sel); }

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Marek Vašut5498.18%150.00%
Axel Lin11.82%150.00%
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static int bd9571mwv_avs_get_voltage_sel_regmap(struct regulator_dev *rdev) { unsigned int val; int ret; ret = bd9571mwv_avs_get_moni_state(rdev); if (ret < 0) return ret; ret = regmap_read(rdev->regmap, BD9571MWV_AVS_VD09_VID(ret), &val); if (ret != 0) return ret; val &= rdev->desc->vsel_mask; val >>= ffs(rdev->desc->vsel_mask) - 1; return val; }

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Marek Vašut8398.81%150.00%
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static int bd9571mwv_reg_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned int sel) { return regmap_write_bits(rdev->regmap, BD9571MWV_DVFS_SETVID, rdev->desc->vsel_mask, sel); }

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Marek Vašut3296.97%150.00%
Axel Lin13.03%150.00%
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/* Operations permitted on AVS voltage regulator */ static struct regulator_ops avs_ops = { .set_voltage_sel = bd9571mwv_avs_set_voltage_sel_regmap, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = bd9571mwv_avs_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, }; /* Operations permitted on voltage regulators */ static struct regulator_ops reg_ops = { .set_voltage_sel = bd9571mwv_reg_set_voltage_sel_regmap, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, }; /* Operations permitted on voltage monitors */ static struct regulator_ops vid_ops = { .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, }; static struct regulator_desc regulators[] = { BD9571MWV_REG("VD09", "vd09", VD09, avs_ops, 0, 0x7f, 0x80, 600000, 10000, 0x3c), BD9571MWV_REG("VD18", "vd18", VD18, vid_ops, BD9571MWV_VD18_VID, 0xf, 16, 1625000, 25000, 0), BD9571MWV_REG("VD25", "vd25", VD25, vid_ops, BD9571MWV_VD25_VID, 0xf, 16, 2150000, 50000, 0), BD9571MWV_REG("VD33", "vd33", VD33, vid_ops, BD9571MWV_VD33_VID, 0xf, 11, 2800000, 100000, 0), BD9571MWV_REG("DVFS", "dvfs", DVFS, reg_ops, BD9571MWV_DVFS_MONIVDAC, 0x7f, 0x80, 600000, 10000, 0x3c), };
static int bd9571mwv_regulator_probe(struct platform_device *pdev) { struct bd9571mwv *bd = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; struct regulator_dev *rdev; int i; platform_set_drvdata(pdev, bd); config.dev = &pdev->dev; config.dev->of_node = bd->dev->of_node; config.driver_data = bd; config.regmap = bd->regmap; for (i = 0; i < ARRAY_SIZE(regulators); i++) { rdev = devm_regulator_register(&pdev->dev, &regulators[i], &config); if (IS_ERR(rdev)) { dev_err(bd->dev, "failed to register %s regulator\n", pdev->name); return PTR_ERR(rdev); } } return 0; }

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static const struct platform_device_id bd9571mwv_regulator_id_table[] = { { "bd9571mwv-regulator", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(platform, bd9571mwv_regulator_id_table); static struct platform_driver bd9571mwv_regulator_driver = { .driver = { .name = "bd9571mwv-regulator", }, .probe = bd9571mwv_regulator_probe, .id_table = bd9571mwv_regulator_id_table, }; module_platform_driver(bd9571mwv_regulator_driver); MODULE_AUTHOR("Marek Vasut <marek.vasut+renesas@gmail.com>"); MODULE_DESCRIPTION("BD9571MWV Regulator driver"); MODULE_LICENSE("GPL v2");

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