@@ -1316,21 +1316,25 @@ config MFD_RN5T618
functionality of the device.
config MFD_SEC_CORE
- tristate "Samsung Electronics PMIC Series Support"
+ tristate
+ select MFD_CORE
+ select REGMAP_IRQ
+
+config MFD_SEC_I2C
+ tristate "Samsung Electronics S2MPA/S2MPS1X/S2MPU/S5M series PMICs"
depends on I2C=y
depends on OF
- select MFD_CORE
+ select MFD_SEC_CORE
select REGMAP_I2C
- select REGMAP_IRQ
help
- Support for the Samsung Electronics PMIC devices coming
- usually along with Samsung Exynos SoC chipset.
+ Support for the Samsung Electronics PMIC devices with I2C interface
+ coming usually along with Samsung Exynos SoC chipset.
This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the functionality
- of the device
+ of the device.
To compile this driver as a module, choose M here: the
- module will be called sec-core.
+ module will be called sec-i2c.
Have in mind that important core drivers (like regulators) depend
on this driver so building this as a module might require proper
initial ramdisk or might not boot up as well in certain scenarios.
@@ -233,6 +233,7 @@ obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o
obj-$(CONFIG_MFD_RK8XX_SPI) += rk8xx-spi.o
obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
+obj-$(CONFIG_MFD_SEC_I2C) += sec-i2c.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
obj-$(CONFIG_MFD_VEXPRESS_SYSREG) += vexpress-sysreg.o
@@ -1,25 +1,22 @@
// SPDX-License-Identifier: GPL-2.0+
-//
-// Copyright (c) 2012 Samsung Electronics Co., Ltd
-// http://www.samsung.com
+/*
+ * Copyright 2012 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ * Copyright 2025 Linaro Ltd.
+ *
+ * Samsung SxM core driver
+ */
#include <linux/device.h>
#include <linux/err.h>
-#include <linux/i2c.h>
+#include <linux/export.h>
#include <linux/interrupt.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/mod_devicetable.h>
#include <linux/module.h>
-#include <linux/of.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
@@ -88,144 +85,6 @@ static const struct mfd_cell s2mpu05_devs[] = {
{ .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;
@@ -258,87 +117,40 @@ static void sec_pmic_configure(struct sec_pmic_dev *sec_pmic)
}
}
-/*
- * 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.
- */
-static void sec_pmic_i2c_parse_dt_pdata(struct device *dev,
- struct sec_platform_data *pd)
+int sec_pmic_probe(struct device *dev, unsigned long device_type,
+ unsigned int irq, struct regmap *regmap,
+ const struct sec_pmic_probe_data *probedata,
+ struct i2c_client *client)
{
- 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");
-}
-
-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);
+ sec_pmic = devm_kzalloc(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;
+ dev_set_drvdata(dev, sec_pmic);
+ sec_pmic->dev = dev;
+ sec_pmic->device_type = device_type;
+ sec_pmic->irq = irq;
+ sec_pmic->regmap_pmic = regmap;
+ sec_pmic->i2c = client;
/*
* 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.
*/
- pdata = devm_kzalloc(sec_pmic->dev, sizeof(*pdata), GFP_KERNEL);
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
- sec_pmic_i2c_parse_dt_pdata(sec_pmic->dev, pdata);
-
- 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;
+ if (probedata) {
+ pdata->manual_poweroff = probedata->manual_poweroff;
+ pdata->disable_wrstbi = probedata->disable_wrstbi;
}
sec_irq_init(sec_pmic);
@@ -383,9 +195,9 @@ static int sec_pmic_probe(struct i2c_client *i2c)
num_sec_devs = ARRAY_SIZE(s2mpu05_devs);
break;
default:
- dev_err(&i2c->dev, "Unsupported device type (%lu)\n",
+ dev_err(sec_pmic->dev, "Unsupported device type %lu\n",
sec_pmic->device_type);
- return -ENODEV;
+ return -EINVAL;
}
ret = devm_mfd_add_devices(sec_pmic->dev, -1, sec_devs, num_sec_devs,
NULL, 0, NULL);
@@ -397,10 +209,11 @@ static int sec_pmic_probe(struct i2c_client *i2c)
return ret;
}
+EXPORT_SYMBOL_GPL(sec_pmic_probe);
-static void sec_pmic_shutdown(struct i2c_client *i2c)
+void sec_pmic_shutdown(struct device *dev)
{
- struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
+ struct sec_pmic_dev *sec_pmic = dev_get_drvdata(dev);
unsigned int reg, mask;
if (!sec_pmic->pdata->manual_poweroff)
@@ -424,11 +237,11 @@ static void sec_pmic_shutdown(struct i2c_client *i2c)
regmap_update_bits(sec_pmic->regmap_pmic, reg, mask, 0);
}
+EXPORT_SYMBOL_GPL(sec_pmic_shutdown);
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);
+ struct sec_pmic_dev *sec_pmic = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
enable_irq_wake(sec_pmic->irq);
@@ -448,8 +261,7 @@ static int sec_pmic_suspend(struct device *dev)
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);
+ struct sec_pmic_dev *sec_pmic = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
disable_irq_wake(sec_pmic->irq);
@@ -458,20 +270,10 @@ static int sec_pmic_resume(struct device *dev)
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);
+DEFINE_SIMPLE_DEV_PM_OPS(sec_pmic_pm_ops, sec_pmic_suspend, sec_pmic_resume);
+EXPORT_SYMBOL_GPL(sec_pmic_pm_ops);
+MODULE_AUTHOR("André Draszik <andre.draszik@linaro.org>");
MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
-MODULE_DESCRIPTION("Core support for the S5M MFD");
+MODULE_DESCRIPTION("Core driver for the Samsung S5M");
MODULE_LICENSE("GPL");
@@ -10,6 +10,23 @@
#ifndef __SEC_CORE_INT_H
#define __SEC_CORE_INT_H
+struct i2c_client;
+
+extern const struct dev_pm_ops sec_pmic_pm_ops;
+
+struct sec_pmic_probe_data {
+ /* Whether or not manually set PWRHOLD to low during shutdown. */
+ bool manual_poweroff;
+ /* Disable the WRSTBI (buck voltage warm reset) when probing? */
+ bool disable_wrstbi;
+};
+
+int sec_pmic_probe(struct device *dev, unsigned long device_type,
+ unsigned int irq, struct regmap *regmap,
+ const struct sec_pmic_probe_data *probedata,
+ struct i2c_client *client);
+void sec_pmic_shutdown(struct device *dev);
+
int sec_irq_init(struct sec_pmic_dev *sec_pmic);
#endif /* __SEC_CORE_INT_H */
new file mode 100644
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2012 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ * Copyright 2025 Linaro Ltd.
+ *
+ * Samsung SxM I2C driver
+ */
+
+#include <linux/dev_printk.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/mfd/samsung/core.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/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+#include "sec-core.h"
+
+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,
+};
+
+/*
+ * 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.
+ */
+static void
+sec_pmic_i2c_parse_dt_pdata(struct device *dev,
+ struct sec_pmic_probe_data *pd)
+{
+ 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");
+}
+
+static int sec_pmic_i2c_probe(struct i2c_client *client)
+{
+ struct sec_pmic_probe_data probedata;
+ const struct regmap_config *regmap;
+ unsigned long device_type;
+ struct regmap *regmap_pmic;
+ int ret;
+
+ sec_pmic_i2c_parse_dt_pdata(&client->dev, &probedata);
+
+ device_type = (unsigned long)of_device_get_match_data(&client->dev);
+
+ switch (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;
+ }
+
+ regmap_pmic = devm_regmap_init_i2c(client, regmap);
+ if (IS_ERR(regmap_pmic)) {
+ ret = PTR_ERR(regmap_pmic);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ return sec_pmic_probe(&client->dev, device_type, client->irq,
+ regmap_pmic, &probedata, client);
+}
+
+static void sec_pmic_i2c_shutdown(struct i2c_client *i2c)
+{
+ sec_pmic_shutdown(&i2c->dev);
+}
+
+static const struct of_device_id sec_pmic_i2c_of_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,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, sec_pmic_i2c_of_match);
+
+static struct i2c_driver sec_pmic_i2c_driver = {
+ .driver = {
+ .name = "sec-pmic-i2c",
+ .pm = pm_sleep_ptr(&sec_pmic_pm_ops),
+ .of_match_table = sec_pmic_i2c_of_match,
+ },
+ .probe = sec_pmic_i2c_probe,
+ .shutdown = sec_pmic_i2c_shutdown,
+};
+module_i2c_driver(sec_pmic_i2c_driver);
+
+MODULE_AUTHOR("André Draszik <andre.draszik@linaro.org>");
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("I2C driver for the Samsung S5M");
+MODULE_LICENSE("GPL");
As a preparation for adding support for Samsung's S2MPG10, which is connected via SPEEDY / ACPM rather than I2C, split out (move) all I2C-specific driver code into its own kernel module, sec-i2c, and make the existing sec-core module be just the transport-agnostic core driver kernel module. Also add myself to MODULE_AUTHOR() and update file headers due to that and all the follow-up rework. Signed-off-by: André Draszik <andre.draszik@linaro.org> -- Note: checkpatch complains about missing help for MFD_SEC_I2C here, but that's a false-positive due to patch context. It also suggests to update MAINTAINERS, but the new file is covered already due to using a wildcard. --- drivers/mfd/Kconfig | 18 ++-- drivers/mfd/Makefile | 1 + drivers/mfd/sec-core.c | 268 +++++++------------------------------------------ drivers/mfd/sec-core.h | 17 ++++ drivers/mfd/sec-i2c.c | 252 ++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 316 insertions(+), 240 deletions(-)