| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| J Keerthy | 997 | 73.09% | 4 | 26.67% |
| Christian Hohnstaedt | 267 | 19.57% | 1 | 6.67% |
| Felipe Balbi | 55 | 4.03% | 2 | 13.33% |
| Tero Kristo | 28 | 2.05% | 1 | 6.67% |
| Javier Martinez Canillas | 7 | 0.51% | 1 | 6.67% |
| Stephen Boyd | 3 | 0.22% | 1 | 6.67% |
| Lee Jones | 2 | 0.15% | 1 | 6.67% |
| Thomas Gleixner | 2 | 0.15% | 1 | 6.67% |
| Uwe Kleine-König | 1 | 0.07% | 1 | 6.67% |
| Krzysztof Kozlowski | 1 | 0.07% | 1 | 6.67% |
| Mark Brown | 1 | 0.07% | 1 | 6.67% |
| Total | 1364 | 15 |
// SPDX-License-Identifier: GPL-2.0-only /* * Driver for TPS65218 Integrated power management chipsets * * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/ */ #include <linux/kernel.h> #include <linux/device.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/slab.h> #include <linux/regmap.h> #include <linux/err.h> #include <linux/of.h> #include <linux/irq.h> #include <linux/interrupt.h> #include <linux/mutex.h> #include <linux/mfd/core.h> #include <linux/mfd/tps65218.h> #define TPS65218_PASSWORD_REGS_UNLOCK 0x7D static const struct mfd_cell tps65218_cells[] = { { .name = "tps65218-pwrbutton", .of_compatible = "ti,tps65218-pwrbutton", }, { .name = "tps65218-gpio", .of_compatible = "ti,tps65218-gpio", }, { .name = "tps65218-regulator", }, }; /** * tps65218_reg_write: Write a single tps65218 register. * * @tps: Device to write to. * @reg: Register to write to. * @val: Value to write. * @level: Password protected level */ int tps65218_reg_write(struct tps65218 *tps, unsigned int reg, unsigned int val, unsigned int level) { int ret; unsigned int xor_reg_val; switch (level) { case TPS65218_PROTECT_NONE: return regmap_write(tps->regmap, reg, val); case TPS65218_PROTECT_L1: xor_reg_val = reg ^ TPS65218_PASSWORD_REGS_UNLOCK; ret = regmap_write(tps->regmap, TPS65218_REG_PASSWORD, xor_reg_val); if (ret < 0) return ret; return regmap_write(tps->regmap, reg, val); default: return -EINVAL; } } EXPORT_SYMBOL_GPL(tps65218_reg_write); /** * tps65218_update_bits: Modify bits w.r.t mask, val and level. * * @tps: Device to write to. * @reg: Register to read-write to. * @mask: Mask. * @val: Value to write. * @level: Password protected level */ static int tps65218_update_bits(struct tps65218 *tps, unsigned int reg, unsigned int mask, unsigned int val, unsigned int level) { int ret; unsigned int data; ret = regmap_read(tps->regmap, reg, &data); if (ret) { dev_err(tps->dev, "Read from reg 0x%x failed\n", reg); return ret; } data &= ~mask; data |= val & mask; mutex_lock(&tps->tps_lock); ret = tps65218_reg_write(tps, reg, data, level); if (ret) dev_err(tps->dev, "Write for reg 0x%x failed\n", reg); mutex_unlock(&tps->tps_lock); return ret; } int tps65218_set_bits(struct tps65218 *tps, unsigned int reg, unsigned int mask, unsigned int val, unsigned int level) { return tps65218_update_bits(tps, reg, mask, val, level); } EXPORT_SYMBOL_GPL(tps65218_set_bits); int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg, unsigned int mask, unsigned int level) { return tps65218_update_bits(tps, reg, mask, 0, level); } EXPORT_SYMBOL_GPL(tps65218_clear_bits); static const struct regmap_range tps65218_yes_ranges[] = { regmap_reg_range(TPS65218_REG_INT1, TPS65218_REG_INT2), regmap_reg_range(TPS65218_REG_STATUS, TPS65218_REG_STATUS), }; static const struct regmap_access_table tps65218_volatile_table = { .yes_ranges = tps65218_yes_ranges, .n_yes_ranges = ARRAY_SIZE(tps65218_yes_ranges), }; static const struct regmap_config tps65218_regmap_config = { .reg_bits = 8, .val_bits = 8, .cache_type = REGCACHE_MAPLE, .volatile_table = &tps65218_volatile_table, }; static const struct regmap_irq tps65218_irqs[] = { /* INT1 IRQs */ [TPS65218_PRGC_IRQ] = { .mask = TPS65218_INT1_PRGC, }, [TPS65218_CC_AQC_IRQ] = { .mask = TPS65218_INT1_CC_AQC, }, [TPS65218_HOT_IRQ] = { .mask = TPS65218_INT1_HOT, }, [TPS65218_PB_IRQ] = { .mask = TPS65218_INT1_PB, }, [TPS65218_AC_IRQ] = { .mask = TPS65218_INT1_AC, }, [TPS65218_VPRG_IRQ] = { .mask = TPS65218_INT1_VPRG, }, [TPS65218_INVALID1_IRQ] = { }, [TPS65218_INVALID2_IRQ] = { }, /* INT2 IRQs*/ [TPS65218_LS1_I_IRQ] = { .mask = TPS65218_INT2_LS1_I, .reg_offset = 1, }, [TPS65218_LS2_I_IRQ] = { .mask = TPS65218_INT2_LS2_I, .reg_offset = 1, }, [TPS65218_LS3_I_IRQ] = { .mask = TPS65218_INT2_LS3_I, .reg_offset = 1, }, [TPS65218_LS1_F_IRQ] = { .mask = TPS65218_INT2_LS1_F, .reg_offset = 1, }, [TPS65218_LS2_F_IRQ] = { .mask = TPS65218_INT2_LS2_F, .reg_offset = 1, }, [TPS65218_LS3_F_IRQ] = { .mask = TPS65218_INT2_LS3_F, .reg_offset = 1, }, [TPS65218_INVALID3_IRQ] = { }, [TPS65218_INVALID4_IRQ] = { }, }; static struct regmap_irq_chip tps65218_irq_chip = { .name = "tps65218", .irqs = tps65218_irqs, .num_irqs = ARRAY_SIZE(tps65218_irqs), .num_regs = 2, .mask_base = TPS65218_REG_INT_MASK1, .status_base = TPS65218_REG_INT1, }; static const struct of_device_id of_tps65218_match_table[] = { { .compatible = "ti,tps65218", }, {} }; MODULE_DEVICE_TABLE(of, of_tps65218_match_table); static int tps65218_voltage_set_strict(struct tps65218 *tps) { u32 strict; if (of_property_read_u32(tps->dev->of_node, "ti,strict-supply-voltage-supervision", &strict)) return 0; if (strict != 0 && strict != 1) { dev_err(tps->dev, "Invalid ti,strict-supply-voltage-supervision value\n"); return -EINVAL; } tps65218_update_bits(tps, TPS65218_REG_CONFIG1, TPS65218_CONFIG1_STRICT, strict ? TPS65218_CONFIG1_STRICT : 0, TPS65218_PROTECT_L1); return 0; } static int tps65218_voltage_set_uv_hyst(struct tps65218 *tps) { u32 hyst; if (of_property_read_u32(tps->dev->of_node, "ti,under-voltage-hyst-microvolt", &hyst)) return 0; if (hyst != 400000 && hyst != 200000) { dev_err(tps->dev, "Invalid ti,under-voltage-hyst-microvolt value\n"); return -EINVAL; } tps65218_update_bits(tps, TPS65218_REG_CONFIG2, TPS65218_CONFIG2_UVLOHYS, hyst == 400000 ? TPS65218_CONFIG2_UVLOHYS : 0, TPS65218_PROTECT_L1); return 0; } static int tps65218_voltage_set_uvlo(struct tps65218 *tps) { u32 uvlo; int uvloval; if (of_property_read_u32(tps->dev->of_node, "ti,under-voltage-limit-microvolt", &uvlo)) return 0; switch (uvlo) { case 2750000: uvloval = TPS65218_CONFIG1_UVLO_2750000; break; case 2950000: uvloval = TPS65218_CONFIG1_UVLO_2950000; break; case 3250000: uvloval = TPS65218_CONFIG1_UVLO_3250000; break; case 3350000: uvloval = TPS65218_CONFIG1_UVLO_3350000; break; default: dev_err(tps->dev, "Invalid ti,under-voltage-limit-microvolt value\n"); return -EINVAL; } tps65218_update_bits(tps, TPS65218_REG_CONFIG1, TPS65218_CONFIG1_UVLO_MASK, uvloval, TPS65218_PROTECT_L1); return 0; } static int tps65218_probe(struct i2c_client *client) { struct tps65218 *tps; int ret; unsigned int chipid; tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; i2c_set_clientdata(client, tps); tps->dev = &client->dev; tps->irq = client->irq; tps->regmap = devm_regmap_init_i2c(client, &tps65218_regmap_config); if (IS_ERR(tps->regmap)) { ret = PTR_ERR(tps->regmap); dev_err(tps->dev, "Failed to allocate register map: %d\n", ret); return ret; } mutex_init(&tps->tps_lock); ret = devm_regmap_add_irq_chip(&client->dev, tps->regmap, tps->irq, IRQF_ONESHOT, 0, &tps65218_irq_chip, &tps->irq_data); if (ret < 0) return ret; ret = regmap_read(tps->regmap, TPS65218_REG_CHIPID, &chipid); if (ret) { dev_err(tps->dev, "Failed to read chipid: %d\n", ret); return ret; } tps->rev = chipid & TPS65218_CHIPID_REV_MASK; ret = tps65218_voltage_set_strict(tps); if (ret) return ret; ret = tps65218_voltage_set_uvlo(tps); if (ret) return ret; ret = tps65218_voltage_set_uv_hyst(tps); if (ret) return ret; ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65218_cells, ARRAY_SIZE(tps65218_cells), NULL, 0, regmap_irq_get_domain(tps->irq_data)); return ret; } static const struct i2c_device_id tps65218_id_table[] = { { "tps65218", TPS65218 }, { }, }; MODULE_DEVICE_TABLE(i2c, tps65218_id_table); static struct i2c_driver tps65218_driver = { .driver = { .name = "tps65218", .of_match_table = of_tps65218_match_table, }, .probe = tps65218_probe, .id_table = tps65218_id_table, }; module_i2c_driver(tps65218_driver); MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); MODULE_DESCRIPTION("TPS65218 chip family multi-function driver"); MODULE_LICENSE("GPL v2");
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