diff options
Diffstat (limited to 'drivers/mfd/sec-core.c')
| -rw-r--r-- | drivers/mfd/sec-core.c | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c deleted file mode 100644 index 3e9b65c988a7..000000000000 --- a/drivers/mfd/sec-core.c +++ /dev/null @@ -1,481 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// Copyright (c) 2012 Samsung Electronics Co., Ltd -// http://www.samsung.com - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/of.h> -#include <linux/interrupt.h> -#include <linux/pm_runtime.h> -#include <linux/mutex.h> -#include <linux/mfd/core.h> -#include <linux/mfd/samsung/core.h> -#include <linux/mfd/samsung/irq.h> -#include <linux/mfd/samsung/s2mpa01.h> -#include <linux/mfd/samsung/s2mps11.h> -#include <linux/mfd/samsung/s2mps13.h> -#include <linux/mfd/samsung/s2mps14.h> -#include <linux/mfd/samsung/s2mps15.h> -#include <linux/mfd/samsung/s2mpu02.h> -#include <linux/mfd/samsung/s5m8767.h> -#include <linux/regmap.h> - -static const struct mfd_cell s5m8767_devs[] = { - { .name = "s5m8767-pmic", }, - { .name = "s5m-rtc", }, - { - .name = "s5m8767-clk", - .of_compatible = "samsung,s5m8767-clk", - }, -}; - -static const struct mfd_cell s2dos05_devs[] = { - { .name = "s2dos05-regulator", }, -}; - -static const struct mfd_cell s2mps11_devs[] = { - { .name = "s2mps11-regulator", }, - { .name = "s2mps14-rtc", }, - { - .name = "s2mps11-clk", - .of_compatible = "samsung,s2mps11-clk", - }, -}; - -static const struct mfd_cell s2mps13_devs[] = { - { .name = "s2mps13-regulator", }, - { .name = "s2mps13-rtc", }, - { - .name = "s2mps13-clk", - .of_compatible = "samsung,s2mps13-clk", - }, -}; - -static const struct mfd_cell s2mps14_devs[] = { - { .name = "s2mps14-regulator", }, - { .name = "s2mps14-rtc", }, - { - .name = "s2mps14-clk", - .of_compatible = "samsung,s2mps14-clk", - }, -}; - -static const struct mfd_cell s2mps15_devs[] = { - { .name = "s2mps15-regulator", }, - { .name = "s2mps15-rtc", }, - { - .name = "s2mps13-clk", - .of_compatible = "samsung,s2mps13-clk", - }, -}; - -static const struct mfd_cell s2mpa01_devs[] = { - { .name = "s2mpa01-pmic", }, - { .name = "s2mps14-rtc", }, -}; - -static const struct mfd_cell s2mpu02_devs[] = { - { .name = "s2mpu02-regulator", }, -}; - -static const struct mfd_cell s2mpu05_devs[] = { - { .name = "s2mpu05-regulator", }, - { .name = "s2mps15-rtc", }, -}; - -static const struct of_device_id sec_dt_match[] = { - { - .compatible = "samsung,s5m8767-pmic", - .data = (void *)S5M8767X, - }, { - .compatible = "samsung,s2dos05", - .data = (void *)S2DOS05, - }, { - .compatible = "samsung,s2mps11-pmic", - .data = (void *)S2MPS11X, - }, { - .compatible = "samsung,s2mps13-pmic", - .data = (void *)S2MPS13X, - }, { - .compatible = "samsung,s2mps14-pmic", - .data = (void *)S2MPS14X, - }, { - .compatible = "samsung,s2mps15-pmic", - .data = (void *)S2MPS15X, - }, { - .compatible = "samsung,s2mpa01-pmic", - .data = (void *)S2MPA01, - }, { - .compatible = "samsung,s2mpu02-pmic", - .data = (void *)S2MPU02, - }, { - .compatible = "samsung,s2mpu05-pmic", - .data = (void *)S2MPU05, - }, { - /* Sentinel */ - }, -}; -MODULE_DEVICE_TABLE(of, sec_dt_match); - -static bool s2mpa01_volatile(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S2MPA01_REG_INT1M: - case S2MPA01_REG_INT2M: - case S2MPA01_REG_INT3M: - return false; - default: - return true; - } -} - -static bool s2mps11_volatile(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S2MPS11_REG_INT1M: - case S2MPS11_REG_INT2M: - case S2MPS11_REG_INT3M: - return false; - default: - return true; - } -} - -static bool s2mpu02_volatile(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S2MPU02_REG_INT1M: - case S2MPU02_REG_INT2M: - case S2MPU02_REG_INT3M: - return false; - default: - return true; - } -} - -static const struct regmap_config sec_regmap_config = { - .reg_bits = 8, - .val_bits = 8, -}; - -static const struct regmap_config s2mpa01_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPA01_REG_LDO_OVCB4, - .volatile_reg = s2mpa01_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s2mps11_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPS11_REG_L38CTRL, - .volatile_reg = s2mps11_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s2mps13_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPS13_REG_LDODSCH5, - .volatile_reg = s2mps11_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s2mps14_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPS14_REG_LDODSCH3, - .volatile_reg = s2mps11_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s2mps15_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPS15_REG_LDODSCH4, - .volatile_reg = s2mps11_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s2mpu02_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S2MPU02_REG_DVSDATA, - .volatile_reg = s2mpu02_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static const struct regmap_config s5m8767_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = S5M8767_REG_LDO28CTRL, - .volatile_reg = s2mps11_volatile, - .cache_type = REGCACHE_FLAT, -}; - -static void sec_pmic_dump_rev(struct sec_pmic_dev *sec_pmic) -{ - unsigned int val; - - /* For each device type, the REG_ID is always the first register */ - if (!regmap_read(sec_pmic->regmap_pmic, S2MPS11_REG_ID, &val)) - dev_dbg(sec_pmic->dev, "Revision: 0x%x\n", val); -} - -static void sec_pmic_configure(struct sec_pmic_dev *sec_pmic) -{ - int err; - - if (sec_pmic->device_type != S2MPS13X) - return; - - if (sec_pmic->pdata->disable_wrstbi) { - /* - * If WRSTBI pin is pulled down this feature must be disabled - * because each Suspend to RAM will trigger buck voltage reset - * to default values. - */ - err = regmap_update_bits(sec_pmic->regmap_pmic, - S2MPS13_REG_WRSTBI, - S2MPS13_REG_WRSTBI_MASK, 0x0); - if (err) - dev_warn(sec_pmic->dev, - "Cannot initialize WRSTBI config: %d\n", - err); - } -} - -/* - * Only the common platform data elements for s5m8767 are parsed here from the - * device tree. Other sub-modules of s5m8767 such as pmic, rtc , charger and - * others have to parse their own platform data elements from device tree. - * - * The s5m8767 platform data structure is instantiated here and the drivers for - * the sub-modules need not instantiate another instance while parsing their - * platform data. - */ -static struct sec_platform_data * -sec_pmic_i2c_parse_dt_pdata(struct device *dev) -{ - struct sec_platform_data *pd; - - pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); - if (!pd) - return ERR_PTR(-ENOMEM); - - pd->manual_poweroff = of_property_read_bool(dev->of_node, - "samsung,s2mps11-acokb-ground"); - pd->disable_wrstbi = of_property_read_bool(dev->of_node, - "samsung,s2mps11-wrstbi-ground"); - return pd; -} - -static int sec_pmic_probe(struct i2c_client *i2c) -{ - const struct regmap_config *regmap; - struct sec_platform_data *pdata; - const struct mfd_cell *sec_devs; - struct sec_pmic_dev *sec_pmic; - int ret, num_sec_devs; - - sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev), - GFP_KERNEL); - if (sec_pmic == NULL) - return -ENOMEM; - - i2c_set_clientdata(i2c, sec_pmic); - sec_pmic->dev = &i2c->dev; - sec_pmic->i2c = i2c; - sec_pmic->irq = i2c->irq; - - pdata = sec_pmic_i2c_parse_dt_pdata(sec_pmic->dev); - if (IS_ERR(pdata)) { - ret = PTR_ERR(pdata); - return ret; - } - - sec_pmic->device_type = (unsigned long)of_device_get_match_data(sec_pmic->dev); - sec_pmic->pdata = pdata; - - switch (sec_pmic->device_type) { - case S2MPA01: - regmap = &s2mpa01_regmap_config; - break; - case S2MPS11X: - regmap = &s2mps11_regmap_config; - break; - case S2MPS13X: - regmap = &s2mps13_regmap_config; - break; - case S2MPS14X: - regmap = &s2mps14_regmap_config; - break; - case S2MPS15X: - regmap = &s2mps15_regmap_config; - break; - case S5M8767X: - regmap = &s5m8767_regmap_config; - break; - case S2MPU02: - regmap = &s2mpu02_regmap_config; - break; - default: - regmap = &sec_regmap_config; - break; - } - - sec_pmic->regmap_pmic = devm_regmap_init_i2c(i2c, regmap); - if (IS_ERR(sec_pmic->regmap_pmic)) { - ret = PTR_ERR(sec_pmic->regmap_pmic); - dev_err(&i2c->dev, "Failed to allocate register map: %d\n", - ret); - return ret; - } - - sec_irq_init(sec_pmic); - - pm_runtime_set_active(sec_pmic->dev); - - switch (sec_pmic->device_type) { - case S5M8767X: - sec_devs = s5m8767_devs; - num_sec_devs = ARRAY_SIZE(s5m8767_devs); - break; - case S2DOS05: - sec_devs = s2dos05_devs; - num_sec_devs = ARRAY_SIZE(s2dos05_devs); - break; - case S2MPA01: - sec_devs = s2mpa01_devs; - num_sec_devs = ARRAY_SIZE(s2mpa01_devs); - break; - case S2MPS11X: - sec_devs = s2mps11_devs; - num_sec_devs = ARRAY_SIZE(s2mps11_devs); - break; - case S2MPS13X: - sec_devs = s2mps13_devs; - num_sec_devs = ARRAY_SIZE(s2mps13_devs); - break; - case S2MPS14X: - sec_devs = s2mps14_devs; - num_sec_devs = ARRAY_SIZE(s2mps14_devs); - break; - case S2MPS15X: - sec_devs = s2mps15_devs; - num_sec_devs = ARRAY_SIZE(s2mps15_devs); - break; - case S2MPU02: - sec_devs = s2mpu02_devs; - num_sec_devs = ARRAY_SIZE(s2mpu02_devs); - break; - case S2MPU05: - sec_devs = s2mpu05_devs; - num_sec_devs = ARRAY_SIZE(s2mpu05_devs); - break; - default: - dev_err(&i2c->dev, "Unsupported device type (%lu)\n", - sec_pmic->device_type); - return -ENODEV; - } - ret = devm_mfd_add_devices(sec_pmic->dev, -1, sec_devs, num_sec_devs, - NULL, 0, NULL); - if (ret) - return ret; - - sec_pmic_configure(sec_pmic); - sec_pmic_dump_rev(sec_pmic); - - return ret; -} - -static void sec_pmic_shutdown(struct i2c_client *i2c) -{ - struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); - unsigned int reg, mask; - - if (!sec_pmic->pdata->manual_poweroff) - return; - - switch (sec_pmic->device_type) { - case S2MPS11X: - reg = S2MPS11_REG_CTRL1; - mask = S2MPS11_CTRL1_PWRHOLD_MASK; - break; - default: - /* - * Currently only one board with S2MPS11 needs this, so just - * ignore the rest. - */ - dev_warn(sec_pmic->dev, - "Unsupported device %lu for manual power off\n", - sec_pmic->device_type); - return; - } - - regmap_update_bits(sec_pmic->regmap_pmic, reg, mask, 0); -} - -static int sec_pmic_suspend(struct device *dev) -{ - struct i2c_client *i2c = to_i2c_client(dev); - struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); - - if (device_may_wakeup(dev)) - enable_irq_wake(sec_pmic->irq); - /* - * PMIC IRQ must be disabled during suspend for RTC alarm - * to work properly. - * When device is woken up from suspend, an - * interrupt occurs before resuming I2C bus controller. - * The interrupt is handled by regmap_irq_thread which tries - * to read RTC registers. This read fails (I2C is still - * suspended) and RTC Alarm interrupt is disabled. - */ - disable_irq(sec_pmic->irq); - - return 0; -} - -static int sec_pmic_resume(struct device *dev) -{ - struct i2c_client *i2c = to_i2c_client(dev); - struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); - - if (device_may_wakeup(dev)) - disable_irq_wake(sec_pmic->irq); - enable_irq(sec_pmic->irq); - - return 0; -} - -static DEFINE_SIMPLE_DEV_PM_OPS(sec_pmic_pm_ops, - sec_pmic_suspend, sec_pmic_resume); - -static struct i2c_driver sec_pmic_driver = { - .driver = { - .name = "sec_pmic", - .pm = pm_sleep_ptr(&sec_pmic_pm_ops), - .of_match_table = sec_dt_match, - }, - .probe = sec_pmic_probe, - .shutdown = sec_pmic_shutdown, -}; -module_i2c_driver(sec_pmic_driver); - -MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); -MODULE_DESCRIPTION("Core support for the S5M MFD"); -MODULE_LICENSE("GPL"); |