| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Gary King | 1000 | 34.41% | 1 | 3.70% |
| Mike Rapoport | 743 | 25.57% | 1 | 3.70% |
| Laxman Dewangan | 606 | 20.85% | 7 | 25.93% |
| Thierry Reding | 153 | 5.26% | 1 | 3.70% |
| Stefan Agner | 131 | 4.51% | 1 | 3.70% |
| Bill Huang | 80 | 2.75% | 1 | 3.70% |
| Stephen Warren | 60 | 2.06% | 1 | 3.70% |
| Axel Lin | 49 | 1.69% | 4 | 14.81% |
| Vincent Palatin | 33 | 1.14% | 1 | 3.70% |
| Mark Brown | 29 | 1.00% | 2 | 7.41% |
| Alban Bedel | 11 | 0.38% | 1 | 3.70% |
| Jingoo Han | 5 | 0.17% | 2 | 7.41% |
| Sachin Kamat | 3 | 0.10% | 1 | 3.70% |
| Marc Dietrich | 1 | 0.03% | 1 | 3.70% |
| Krzysztof Kozlowski | 1 | 0.03% | 1 | 3.70% |
| Geert Uytterhoeven | 1 | 0.03% | 1 | 3.70% |
| Total | 2906 | 27 |
/* * Core driver for TI TPS6586x PMIC family * * Copyright (c) 2010 CompuLab Ltd. * Mike Rapoport <mike@compulab.co.il> * * Based on da903x.c. * Copyright (C) 2008 Compulab, Ltd. * Mike Rapoport <mike@compulab.co.il> * Copyright (C) 2006-2008 Marvell International Ltd. * Eric Miao <eric.miao@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/interrupt.h> #include <linux/irq.h> #include <linux/irqdomain.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/of.h> #include <linux/mfd/core.h> #include <linux/mfd/tps6586x.h> #define TPS6586X_SUPPLYENE 0x14 #define EXITSLREQ_BIT BIT(1) #define SLEEP_MODE_BIT BIT(3) /* interrupt control registers */ #define TPS6586X_INT_ACK1 0xb5 #define TPS6586X_INT_ACK2 0xb6 #define TPS6586X_INT_ACK3 0xb7 #define TPS6586X_INT_ACK4 0xb8 /* interrupt mask registers */ #define TPS6586X_INT_MASK1 0xb0 #define TPS6586X_INT_MASK2 0xb1 #define TPS6586X_INT_MASK3 0xb2 #define TPS6586X_INT_MASK4 0xb3 #define TPS6586X_INT_MASK5 0xb4 /* device id */ #define TPS6586X_VERSIONCRC 0xcd /* Maximum register */ #define TPS6586X_MAX_REGISTER TPS6586X_VERSIONCRC struct tps6586x_irq_data { u8 mask_reg; u8 mask_mask; }; #define TPS6586X_IRQ(_reg, _mask) \ { \ .mask_reg = (_reg) - TPS6586X_INT_MASK1, \ .mask_mask = (_mask), \ } static const struct tps6586x_irq_data tps6586x_irqs[] = { [TPS6586X_INT_PLDO_0] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 0), [TPS6586X_INT_PLDO_1] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 1), [TPS6586X_INT_PLDO_2] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 2), [TPS6586X_INT_PLDO_3] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 3), [TPS6586X_INT_PLDO_4] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 4), [TPS6586X_INT_PLDO_5] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 5), [TPS6586X_INT_PLDO_6] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 6), [TPS6586X_INT_PLDO_7] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 7), [TPS6586X_INT_COMP_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 0), [TPS6586X_INT_ADC] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 1), [TPS6586X_INT_PLDO_8] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 2), [TPS6586X_INT_PLDO_9] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 3), [TPS6586X_INT_PSM_0] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 4), [TPS6586X_INT_PSM_1] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 5), [TPS6586X_INT_PSM_2] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 6), [TPS6586X_INT_PSM_3] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 7), [TPS6586X_INT_RTC_ALM1] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 4), [TPS6586X_INT_ACUSB_OVP] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 0x03), [TPS6586X_INT_USB_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 2), [TPS6586X_INT_AC_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 3), [TPS6586X_INT_BAT_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 1 << 0), [TPS6586X_INT_CHG_STAT] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 0xfc), [TPS6586X_INT_CHG_TEMP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0x06), [TPS6586X_INT_PP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0xf0), [TPS6586X_INT_RESUME] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 5), [TPS6586X_INT_LOW_SYS] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 6), [TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1), }; static struct resource tps6586x_rtc_resources[] = { { .start = TPS6586X_INT_RTC_ALM1, .end = TPS6586X_INT_RTC_ALM1, .flags = IORESOURCE_IRQ, }, }; static const struct mfd_cell tps6586x_cell[] = { { .name = "tps6586x-gpio", }, { .name = "tps6586x-regulator", }, { .name = "tps6586x-rtc", .num_resources = ARRAY_SIZE(tps6586x_rtc_resources), .resources = &tps6586x_rtc_resources[0], }, { .name = "tps6586x-onkey", }, }; struct tps6586x { struct device *dev; struct i2c_client *client; struct regmap *regmap; int version; int irq; struct irq_chip irq_chip; struct mutex irq_lock; int irq_base; u32 irq_en; u8 mask_reg[5]; struct irq_domain *irq_domain; }; static inline struct tps6586x *dev_to_tps6586x(struct device *dev) { return i2c_get_clientdata(to_i2c_client(dev)); } int tps6586x_write(struct device *dev, int reg, uint8_t val) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_write(tps6586x->regmap, reg, val); } EXPORT_SYMBOL_GPL(tps6586x_write); int tps6586x_writes(struct device *dev, int reg, int len, uint8_t *val) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_bulk_write(tps6586x->regmap, reg, val, len); } EXPORT_SYMBOL_GPL(tps6586x_writes); int tps6586x_read(struct device *dev, int reg, uint8_t *val) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); unsigned int rval; int ret; ret = regmap_read(tps6586x->regmap, reg, &rval); if (!ret) *val = rval; return ret; } EXPORT_SYMBOL_GPL(tps6586x_read); int tps6586x_reads(struct device *dev, int reg, int len, uint8_t *val) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_bulk_read(tps6586x->regmap, reg, val, len); } EXPORT_SYMBOL_GPL(tps6586x_reads); int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_update_bits(tps6586x->regmap, reg, bit_mask, bit_mask); } EXPORT_SYMBOL_GPL(tps6586x_set_bits); int tps6586x_clr_bits(struct device *dev, int reg, uint8_t bit_mask) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_update_bits(tps6586x->regmap, reg, bit_mask, 0); } EXPORT_SYMBOL_GPL(tps6586x_clr_bits); int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return regmap_update_bits(tps6586x->regmap, reg, mask, val); } EXPORT_SYMBOL_GPL(tps6586x_update); int tps6586x_irq_get_virq(struct device *dev, int irq) { struct tps6586x *tps6586x = dev_to_tps6586x(dev); return irq_create_mapping(tps6586x->irq_domain, irq); } EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq); int tps6586x_get_version(struct device *dev) { struct tps6586x *tps6586x = dev_get_drvdata(dev); return tps6586x->version; } EXPORT_SYMBOL_GPL(tps6586x_get_version); static int __remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); return 0; } static int tps6586x_remove_subdevs(struct tps6586x *tps6586x) { return device_for_each_child(tps6586x->dev, NULL, __remove_subdev); } static void tps6586x_irq_lock(struct irq_data *data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data); mutex_lock(&tps6586x->irq_lock); } static void tps6586x_irq_enable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask; tps6586x->irq_en |= (1 << __irq); } static void tps6586x_irq_disable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] |= data->mask_mask; tps6586x->irq_en &= ~(1 << __irq); } static void tps6586x_irq_sync_unlock(struct irq_data *data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data); int i; for (i = 0; i < ARRAY_SIZE(tps6586x->mask_reg); i++) { int ret; ret = tps6586x_write(tps6586x->dev, TPS6586X_INT_MASK1 + i, tps6586x->mask_reg[i]); WARN_ON(ret); } mutex_unlock(&tps6586x->irq_lock); } #ifdef CONFIG_PM_SLEEP static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); return irq_set_irq_wake(tps6586x->irq, on); } #else #define tps6586x_irq_set_wake NULL #endif static struct irq_chip tps6586x_irq_chip = { .name = "tps6586x", .irq_bus_lock = tps6586x_irq_lock, .irq_bus_sync_unlock = tps6586x_irq_sync_unlock, .irq_disable = tps6586x_irq_disable, .irq_enable = tps6586x_irq_enable, .irq_set_wake = tps6586x_irq_set_wake, }; static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw) { struct tps6586x *tps6586x = h->host_data; irq_set_chip_data(virq, tps6586x); irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq); irq_set_nested_thread(virq, 1); irq_set_noprobe(virq); return 0; } static const struct irq_domain_ops tps6586x_domain_ops = { .map = tps6586x_irq_map, .xlate = irq_domain_xlate_twocell, }; static irqreturn_t tps6586x_irq(int irq, void *data) { struct tps6586x *tps6586x = data; u32 acks; int ret = 0; ret = tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(acks), (uint8_t *)&acks); if (ret < 0) { dev_err(tps6586x->dev, "failed to read interrupt status\n"); return IRQ_NONE; } acks = le32_to_cpu(acks); while (acks) { int i = __ffs(acks); if (tps6586x->irq_en & (1 << i)) handle_nested_irq( irq_find_mapping(tps6586x->irq_domain, i)); acks &= ~(1 << i); } return IRQ_HANDLED; } static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, int irq_base) { int i, ret; u8 tmp[4]; int new_irq_base; int irq_num = ARRAY_SIZE(tps6586x_irqs); tps6586x->irq = irq; mutex_init(&tps6586x->irq_lock); for (i = 0; i < 5; i++) { tps6586x->mask_reg[i] = 0xff; tps6586x_write(tps6586x->dev, TPS6586X_INT_MASK1 + i, 0xff); } tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp); if (irq_base > 0) { new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1); if (new_irq_base < 0) { dev_err(tps6586x->dev, "Failed to alloc IRQs: %d\n", new_irq_base); return new_irq_base; } } else { new_irq_base = 0; } tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node, irq_num, new_irq_base, &tps6586x_domain_ops, tps6586x); if (!tps6586x->irq_domain) { dev_err(tps6586x->dev, "Failed to create IRQ domain\n"); return -ENOMEM; } ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, "tps6586x", tps6586x); if (!ret) device_init_wakeup(tps6586x->dev, 1); return ret; } static int tps6586x_add_subdevs(struct tps6586x *tps6586x, struct tps6586x_platform_data *pdata) { struct tps6586x_subdev_info *subdev; struct platform_device *pdev; int i, ret = 0; for (i = 0; i < pdata->num_subdevs; i++) { subdev = &pdata->subdevs[i]; pdev = platform_device_alloc(subdev->name, subdev->id); if (!pdev) { ret = -ENOMEM; goto failed; } pdev->dev.parent = tps6586x->dev; pdev->dev.platform_data = subdev->platform_data; pdev->dev.of_node = subdev->of_node; ret = platform_device_add(pdev); if (ret) { platform_device_put(pdev); goto failed; } } return 0; failed: tps6586x_remove_subdevs(tps6586x); return ret; } #ifdef CONFIG_OF static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client) { struct device_node *np = client->dev.of_node; struct tps6586x_platform_data *pdata; pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return NULL; pdata->num_subdevs = 0; pdata->subdevs = NULL; pdata->gpio_base = -1; pdata->irq_base = -1; pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller"); return pdata; } static const struct of_device_id tps6586x_of_match[] = { { .compatible = "ti,tps6586x", }, { }, }; #else static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client) { return NULL; } #endif static bool is_volatile_reg(struct device *dev, unsigned int reg) { /* Cache all interrupt mask register */ if ((reg >= TPS6586X_INT_MASK1) && (reg <= TPS6586X_INT_MASK5)) return false; return true; } static const struct regmap_config tps6586x_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = TPS6586X_MAX_REGISTER, .volatile_reg = is_volatile_reg, .cache_type = REGCACHE_RBTREE, }; static struct device *tps6586x_dev; static void tps6586x_power_off(void) { if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT)) return; tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); } static void tps6586x_print_version(struct i2c_client *client, int version) { const char *name; switch (version) { case TPS658621A: name = "TPS658621A"; break; case TPS658621CD: name = "TPS658621C/D"; break; case TPS658623: name = "TPS658623"; break; case TPS658640: case TPS658640v2: name = "TPS658640"; break; case TPS658643: name = "TPS658643"; break; default: name = "TPS6586X"; break; } dev_info(&client->dev, "Found %s, VERSIONCRC is %02x\n", name, version); } static int tps6586x_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev); struct tps6586x *tps6586x; int ret; int version; if (!pdata && client->dev.of_node) pdata = tps6586x_parse_dt(client); if (!pdata) { dev_err(&client->dev, "tps6586x requires platform data\n"); return -ENOTSUPP; } version = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC); if (version < 0) { dev_err(&client->dev, "Chip ID read failed: %d\n", version); return -EIO; } tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL); if (!tps6586x) return -ENOMEM; tps6586x->version = version; tps6586x_print_version(client, tps6586x->version); tps6586x->client = client; tps6586x->dev = &client->dev; i2c_set_clientdata(client, tps6586x); tps6586x->regmap = devm_regmap_init_i2c(client, &tps6586x_regmap_config); if (IS_ERR(tps6586x->regmap)) { ret = PTR_ERR(tps6586x->regmap); dev_err(&client->dev, "regmap init failed: %d\n", ret); return ret; } if (client->irq) { ret = tps6586x_irq_init(tps6586x, client->irq, pdata->irq_base); if (ret) { dev_err(&client->dev, "IRQ init failed: %d\n", ret); return ret; } } ret = mfd_add_devices(tps6586x->dev, -1, tps6586x_cell, ARRAY_SIZE(tps6586x_cell), NULL, 0, tps6586x->irq_domain); if (ret < 0) { dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); goto err_mfd_add; } ret = tps6586x_add_subdevs(tps6586x, pdata); if (ret) { dev_err(&client->dev, "add devices failed: %d\n", ret); goto err_add_devs; } if (pdata->pm_off && !pm_power_off) { tps6586x_dev = &client->dev; pm_power_off = tps6586x_power_off; } return 0; err_add_devs: mfd_remove_devices(tps6586x->dev); err_mfd_add: if (client->irq) free_irq(client->irq, tps6586x); return ret; } static int tps6586x_i2c_remove(struct i2c_client *client) { struct tps6586x *tps6586x = i2c_get_clientdata(client); tps6586x_remove_subdevs(tps6586x); mfd_remove_devices(tps6586x->dev); if (client->irq) free_irq(client->irq, tps6586x); return 0; } static const struct i2c_device_id tps6586x_id_table[] = { { "tps6586x", 0 }, { }, }; MODULE_DEVICE_TABLE(i2c, tps6586x_id_table); static struct i2c_driver tps6586x_driver = { .driver = { .name = "tps6586x", .of_match_table = of_match_ptr(tps6586x_of_match), }, .probe = tps6586x_i2c_probe, .remove = tps6586x_i2c_remove, .id_table = tps6586x_id_table, }; static int __init tps6586x_init(void) { return i2c_add_driver(&tps6586x_driver); } subsys_initcall(tps6586x_init); static void __exit tps6586x_exit(void) { i2c_del_driver(&tps6586x_driver); } module_exit(tps6586x_exit); MODULE_DESCRIPTION("TPS6586X core driver"); MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); MODULE_LICENSE("GPL");
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