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Diffstat (limited to 'drivers/regulator/88pm8607.c')
-rw-r--r--drivers/regulator/88pm8607.c442
1 files changed, 442 insertions, 0 deletions
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
new file mode 100644
index 000000000..c3d15427a
--- /dev/null
+++ b/drivers/regulator/88pm8607.c
@@ -0,0 +1,442 @@
+/*
+ * Regulators driver for Marvell 88PM8607
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.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.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/module.h>
+
+struct pm8607_regulator_info {
+ struct regulator_desc desc;
+ struct pm860x_chip *chip;
+ struct regulator_dev *regulator;
+ struct i2c_client *i2c;
+ struct i2c_client *i2c_8606;
+
+ unsigned int *vol_table;
+ unsigned int *vol_suspend;
+
+ int slope_double;
+};
+
+static const unsigned int BUCK1_table[] = {
+ 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
+ 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
+ 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
+ 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+};
+
+static const unsigned int BUCK1_suspend_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int BUCK2_table[] = {
+ 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
+ 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
+ 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
+ 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
+ 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
+ 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
+ 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
+ 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
+};
+
+static const unsigned int BUCK2_suspend_table[] = {
+ 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
+ 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
+ 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
+ 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
+ 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
+ 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
+ 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
+ 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
+};
+
+static const unsigned int BUCK3_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int BUCK3_suspend_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int LDO1_table[] = {
+ 1800000, 1200000, 2800000, 0,
+};
+
+static const unsigned int LDO1_suspend_table[] = {
+ 1800000, 1200000, 0, 0,
+};
+
+static const unsigned int LDO2_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO2_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO3_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO3_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO4_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
+};
+
+static const unsigned int LDO4_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
+};
+
+static const unsigned int LDO5_table[] = {
+ 2900000, 3000000, 3100000, 3300000,
+};
+
+static const unsigned int LDO5_suspend_table[] = {
+ 2900000, 0, 0, 0,
+};
+
+static const unsigned int LDO6_table[] = {
+ 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
+};
+
+static const unsigned int LDO6_suspend_table[] = {
+ 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
+};
+
+static const unsigned int LDO7_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO7_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO8_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO8_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO9_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO9_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO10_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO10_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO12_table[] = {
+ 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO12_suspend_table[] = {
+ 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO13_table[] = {
+ 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
+};
+
+static const unsigned int LDO13_suspend_table[] = {
+ 0,
+};
+
+static const unsigned int LDO14_table[] = {
+ 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
+};
+
+static const unsigned int LDO14_suspend_table[] = {
+ 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
+};
+
+static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret = -EINVAL;
+
+ if (info->vol_table && (index < rdev->desc->n_voltages)) {
+ ret = info->vol_table[index];
+ if (info->slope_double)
+ ret <<= 1;
+ }
+ return ret;
+}
+
+static struct regulator_ops pm8607_regulator_ops = {
+ .list_voltage = pm8607_list_voltage,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+};
+
+static struct regulator_ops pm8606_preg_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+};
+
+#define PM8606_PREG(ereg, ebit) \
+{ \
+ .desc = { \
+ .name = "PREG", \
+ .ops = &pm8606_preg_ops, \
+ .type = REGULATOR_CURRENT, \
+ .id = PM8606_ID_PREG, \
+ .owner = THIS_MODULE, \
+ .enable_reg = PM8606_##ereg, \
+ .enable_mask = (ebit), \
+ .enable_is_inverted = true, \
+ }, \
+}
+
+#define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &pm8607_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = PM8607_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ .n_voltages = ARRAY_SIZE(vreg##_table), \
+ .vsel_reg = PM8607_##vreg, \
+ .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \
+ .apply_reg = PM8607_##ureg, \
+ .apply_bit = (ubit), \
+ .enable_reg = PM8607_##ereg, \
+ .enable_mask = 1 << (ebit), \
+ }, \
+ .slope_double = (0), \
+ .vol_table = (unsigned int *)&vreg##_table, \
+ .vol_suspend = (unsigned int *)&vreg##_suspend_table, \
+}
+
+#define PM8607_LDO(_id, vreg, shift, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = "LDO" #_id, \
+ .ops = &pm8607_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = PM8607_ID_LDO##_id, \
+ .owner = THIS_MODULE, \
+ .n_voltages = ARRAY_SIZE(LDO##_id##_table), \
+ .vsel_reg = PM8607_##vreg, \
+ .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
+ .enable_reg = PM8607_##ereg, \
+ .enable_mask = 1 << (ebit), \
+ }, \
+ .slope_double = (0), \
+ .vol_table = (unsigned int *)&LDO##_id##_table, \
+ .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
+}
+
+static struct pm8607_regulator_info pm8607_regulator_info[] = {
+ PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0),
+ PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1),
+ PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2),
+
+ PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),
+ PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),
+ PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),
+ PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),
+ PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),
+ PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),
+ PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),
+ PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),
+ PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),
+ PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),
+ PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
+ PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
+ PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
+};
+
+static struct pm8607_regulator_info pm8606_regulator_info[] = {
+ PM8606_PREG(PREREGULATORB, 5),
+};
+
+#ifdef CONFIG_OF
+static int pm8607_regulator_dt_init(struct platform_device *pdev,
+ struct pm8607_regulator_info *info,
+ struct regulator_config *config)
+{
+ struct device_node *nproot, *np;
+ nproot = pdev->dev.parent->of_node;
+ if (!nproot)
+ return -ENODEV;
+ nproot = of_get_child_by_name(nproot, "regulators");
+ if (!nproot) {
+ dev_err(&pdev->dev, "failed to find regulators node\n");
+ return -ENODEV;
+ }
+ for_each_child_of_node(nproot, np) {
+ if (!of_node_cmp(np->name, info->desc.name)) {
+ config->init_data =
+ of_get_regulator_init_data(&pdev->dev, np,
+ &info->desc);
+ config->of_node = np;
+ break;
+ }
+ }
+ of_node_put(nproot);
+ return 0;
+}
+#else
+#define pm8607_regulator_dt_init(x, y, z) (-1)
+#endif
+
+static int pm8607_regulator_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm8607_regulator_info *info = NULL;
+ struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
+ struct regulator_config config = { };
+ struct resource *res;
+ int i;
+
+ res = platform_get_resource(pdev, IORESOURCE_REG, 0);
+ if (res) {
+ /* There're resources in 88PM8607 regulator driver */
+ for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
+ info = &pm8607_regulator_info[i];
+ if (info->desc.vsel_reg == res->start)
+ break;
+ }
+ if (i == ARRAY_SIZE(pm8607_regulator_info)) {
+ dev_err(&pdev->dev, "Failed to find regulator %llu\n",
+ (unsigned long long)res->start);
+ return -EINVAL;
+ }
+ } else {
+ /* There's no resource in 88PM8606 PREG regulator driver */
+ info = &pm8606_regulator_info[0];
+ /* i is used to check regulator ID */
+ i = -1;
+ }
+ info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion :
+ chip->client;
+ info->chip = chip;
+
+ /* check DVC ramp slope double */
+ if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
+ info->slope_double = 1;
+
+ config.dev = &pdev->dev;
+ config.driver_data = info;
+
+ if (pm8607_regulator_dt_init(pdev, info, &config))
+ if (pdata)
+ config.init_data = pdata;
+
+ if (chip->id == CHIP_PM8607)
+ config.regmap = chip->regmap;
+ else
+ config.regmap = chip->regmap_companion;
+
+ info->regulator = devm_regulator_register(&pdev->dev, &info->desc,
+ &config);
+ if (IS_ERR(info->regulator)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ info->desc.name);
+ return PTR_ERR(info->regulator);
+ }
+
+ platform_set_drvdata(pdev, info);
+ return 0;
+}
+
+static struct platform_device_id pm8607_regulator_driver_ids[] = {
+ {
+ .name = "88pm860x-regulator",
+ .driver_data = 0,
+ }, {
+ .name = "88pm860x-preg",
+ .driver_data = 0,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);
+
+static struct platform_driver pm8607_regulator_driver = {
+ .driver = {
+ .name = "88pm860x-regulator",
+ },
+ .probe = pm8607_regulator_probe,
+ .id_table = pm8607_regulator_driver_ids,
+};
+
+static int __init pm8607_regulator_init(void)
+{
+ return platform_driver_register(&pm8607_regulator_driver);
+}
+subsys_initcall(pm8607_regulator_init);
+
+static void __exit pm8607_regulator_exit(void)
+{
+ platform_driver_unregister(&pm8607_regulator_driver);
+}
+module_exit(pm8607_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
+MODULE_ALIAS("platform:88pm8607-regulator");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-19 19:31:02 +0000