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@xxxxxxxxxx> -- 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(-) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 205918c826334981587c4179bb00481c336ab8d5..9cce9a632827a38d6e4396167aa3b0391f273e97 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -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. diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 320a431b4aa11e8d4d99740dfa16267a83cb417d..ca9efff5780a7c818ca6cfe017c0f897ca70b449 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -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 diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 9c514f4b5f853ec2b4e234c578935ffad145cd4b..e81da34cf6795beca5f660fb46eefa4b5f8957d1 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -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@xxxxxxxxxx>"); MODULE_AUTHOR("Sangbeom Kim <sbkim73@xxxxxxxxxxx>"); -MODULE_DESCRIPTION("Core support for the S5M MFD"); +MODULE_DESCRIPTION("Core driver for the Samsung S5M"); MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/sec-core.h b/drivers/mfd/sec-core.h index b3fded5f02a0ddc09a9508fd49a5d335f7ad0ee7..58e5b645f377cea5543a215c05957a2c49239a6f 100644 --- a/drivers/mfd/sec-core.h +++ b/drivers/mfd/sec-core.h @@ -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 */ diff --git a/drivers/mfd/sec-i2c.c b/drivers/mfd/sec-i2c.c new file mode 100644 index 0000000000000000000000000000000000000000..803a46e657a5a1a639014d442941c0cdc60556a5 --- /dev/null +++ b/drivers/mfd/sec-i2c.c @@ -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@xxxxxxxxxx>"); +MODULE_AUTHOR("Sangbeom Kim <sbkim73@xxxxxxxxxxx>"); +MODULE_DESCRIPTION("I2C driver for the Samsung S5M"); +MODULE_LICENSE("GPL"); -- 2.49.0.395.g12beb8f557-goog
