^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) static const struct regulator_ops pg86x_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) .set_voltage_sel = regulator_set_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) .get_voltage_sel = regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) .list_voltage = regulator_list_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) static const struct linear_range pg86x_buck1_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) REGULATOR_LINEAR_RANGE( 0, 0, 10, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) REGULATOR_LINEAR_RANGE(1000000, 11, 34, 25000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) REGULATOR_LINEAR_RANGE(1600000, 35, 47, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct linear_range pg86x_buck2_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) REGULATOR_LINEAR_RANGE( 0, 0, 15, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) REGULATOR_LINEAR_RANGE(1000000, 16, 39, 25000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) REGULATOR_LINEAR_RANGE(1600000, 40, 52, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const struct regulator_desc pg86x_regulators[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .id = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .name = "buck1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .of_match = of_match_ptr("buck1"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .n_voltages = 11 + 24 + 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .linear_ranges = pg86x_buck1_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .n_linear_ranges = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .vsel_reg = 0x24,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .vsel_mask = 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .ops = &pg86x_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .owner = THIS_MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .id = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .name = "buck2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .of_match = of_match_ptr("buck2"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .n_voltages = 16 + 24 + 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .linear_ranges = pg86x_buck2_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .n_linear_ranges = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .vsel_reg = 0x13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .vsel_mask = 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .ops = &pg86x_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .owner = THIS_MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static const struct regmap_config pg86x_regmap = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static int pg86x_i2c_probe(struct i2c_client *i2c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int id, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct regulator_config config = {.dev = &i2c->dev};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct regmap *regmap = devm_regmap_init_i2c(i2c, &pg86x_regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (IS_ERR(regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) ret = PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) for (id = 0; id < ARRAY_SIZE(pg86x_regulators); id++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct regulator_dev *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) rdev = devm_regulator_register(&i2c->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) &pg86x_regulators[id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (IS_ERR(rdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) ret = PTR_ERR(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) dev_err(&i2c->dev, "failed to register %s: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) pg86x_regulators[id].name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static const struct of_device_id __maybe_unused pg86x_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) { .compatible = "marvell,88pg867" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) { .compatible = "marvell,88pg868" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) MODULE_DEVICE_TABLE(of, pg86x_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static const struct i2c_device_id pg86x_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) { "88pg867", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { "88pg868", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) MODULE_DEVICE_TABLE(i2c, pg86x_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static struct i2c_driver pg86x_regulator_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .name = "88pg86x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .of_match_table = of_match_ptr(pg86x_dt_ids),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .probe_new = pg86x_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .id_table = pg86x_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) module_i2c_driver(pg86x_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) MODULE_DESCRIPTION("Marvell 88PG86X voltage regulator");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) MODULE_AUTHOR("Alexander Monakov <amonakov@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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