[9610] drivers: mfd: created mfd driver for S2MPU09
authorJieun Yi <jieun.yi@samsung.com>
Fri, 11 May 2018 04:38:54 +0000 (13:38 +0900)
committerJaehyoung Choi <jkkkkk.choi@samsung.com>
Fri, 11 May 2018 07:38:54 +0000 (16:38 +0900)
Change-Id: Ia4ecc49230a49f9b6af59a3520ac191f2e546106
Signed-off-by: Jieun Yi <jieun.yi@samsung.com>
drivers/mfd/Kconfig
drivers/mfd/Makefile
drivers/mfd/s2mpu09-core.c [new file with mode: 0644]
drivers/mfd/s2mpu09-irq.c [new file with mode: 0644]
include/linux/mfd/samsung/s2mpu09-regulator.h [new file with mode: 0644]
include/linux/mfd/samsung/s2mpu09.h [new file with mode: 0644]

index 7ed65424eb5ebe9061f19084f30e8521b0454e7a..c7215b4df5c3e8f0c3144514f1199f523f70a42b 100644 (file)
@@ -1012,6 +1012,17 @@ config MFD_S2MU004
          additional drivers must be enabled in order to use the functionality
          of the device
 
+config MFD_S2MPU09
+       bool "SAMSUNG Electronics S2MPU09 PMIC Series Support"
+       depends on I2C=y
+       select MFD_CORE
+       select REGULATOR
+       help
+        Support for the Samsung Electronics MFD series.
+        This driver provides common support for accessing the device,
+        additional drivers must be enabled in order to use the functionality
+        of the device
+
 config MFD_SI476X_CORE
        tristate "Silicon Laboratories 4761/64/68 AM/FM radio."
        depends on I2C
index 052f7b821ab72dd54a9e09e98f84fe502803745e..0f1e9fdfb9c8095071f7bca6c552253037bb5cc3 100644 (file)
@@ -201,6 +201,7 @@ obj-$(CONFIG_MFD_RK808)             += rk808.o
 obj-$(CONFIG_MFD_RN5T618)      += rn5t618.o
 obj-$(CONFIG_MFD_SEC_CORE)     += sec-core.o sec-irq.o
 obj-$(CONFIG_MFD_S2MU004)      += s2mu004_core.o s2mu004_irq.o
+obj-$(CONFIG_MFD_S2MPU09)      += s2mpu09-core.o s2mpu09-irq.o
 obj-$(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/s2mpu09-core.c b/drivers/mfd/s2mpu09-core.c
new file mode 100644 (file)
index 0000000..a655cd0
--- /dev/null
@@ -0,0 +1,592 @@
+
+/*
+ * s2mpu09-core.c - mfd core driver for the s2mpu09
+ *
+ * Copyright (C) 2016 Samsung Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/samsung/s2mpu09.h>
+#include <linux/mfd/samsung/s2mpu09-regulator.h>
+#include <linux/regulator/machine.h>
+#include <linux/rtc.h>
+#include <soc/samsung/acpm_mfd.h>
+
+#ifdef CONFIG_OF
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#endif /* CONFIG_OF */
+
+#define I2C_ADDR_TOP   0x00
+#define I2C_ADDR_PMIC  0x01
+#define I2C_ADDR_RTC   0x02
+
+struct device_node *acpm_mfd_node;
+
+static struct mfd_cell s2mpu09_devs[] = {
+       { .name = "s2mpu09-regulator", },
+       { .name = "s2mpu09-rtc", },
+};
+
+#if defined(CONFIG_EXYNOS_ACPM)
+int s2mpu09_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
+{
+       int ret;
+
+       ret = exynos_acpm_read_reg(i2c->addr, reg, dest);
+       if (ret) {
+               pr_err("[%s] acpm ipc fail!\n", __func__);
+               return ret;
+       }
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_read_reg);
+
+int s2mpu09_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+       int ret;
+
+       ret = exynos_acpm_bulk_read(i2c->addr, reg, count, buf);
+       if (ret) {
+               pr_err("[%s] acpm ipc fail!\n", __func__);
+               return ret;
+       }
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_bulk_read);
+
+int s2mpu09_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
+{
+       int ret;
+
+       ret = exynos_acpm_write_reg(i2c->addr, reg, value);
+       if (ret) {
+               pr_err("[%s] acpm ipc fail!\n", __func__);
+               return ret;
+       }
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_write_reg);
+
+int s2mpu09_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+       int ret;
+
+       ret = exynos_acpm_bulk_write(i2c->addr, reg, count, buf);
+       if (ret) {
+               pr_err("[%s] acpm ipc fail!\n", __func__);
+               return ret;
+       }
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_bulk_write);
+
+int s2mpu09_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
+{
+       int ret;
+
+       ret = exynos_acpm_update_reg(i2c->addr, reg, val, mask);
+       if (ret) {
+               pr_err("[%s] acpm ipc fail!\n", __func__);
+               return ret;
+       }
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_update_reg);
+#else
+int s2mpu09_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_read_byte_data(i2c, reg);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0) {
+               pr_info("%s:%s reg(0x%x), ret(%d)\n",
+                        MFD_DEV_NAME, __func__, reg, ret);
+               return ret;
+       }
+
+       ret &= 0xff;
+       *dest = ret;
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_read_reg);
+
+int s2mpu09_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_bulk_read);
+
+int s2mpu09_read_word(struct i2c_client *i2c, u8 reg)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_read_word_data(i2c, reg);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0)
+               return ret;
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_read_word);
+
+int s2mpu09_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_write_byte_data(i2c, reg, value);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0)
+               pr_info("%s:%s reg(0x%x), ret(%d)\n",
+                               MFD_DEV_NAME, __func__, reg, ret);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_write_reg);
+
+int s2mpu09_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0)
+               return ret;
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_bulk_write);
+
+int s2mpu09_write_word(struct i2c_client *i2c, u8 reg, u16 value)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_write_word_data(i2c, reg, value);
+       mutex_unlock(&s2mpu09->i2c_lock);
+       if (ret < 0)
+               return ret;
+       return 0;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_write_word);
+
+int s2mpu09_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+       int ret;
+       u8 old_val, new_val;
+
+       mutex_lock(&s2mpu09->i2c_lock);
+       ret = i2c_smbus_read_byte_data(i2c, reg);
+       if (ret >= 0) {
+               old_val = ret & 0xff;
+               new_val = (val & mask) | (old_val & (~mask));
+               ret = i2c_smbus_write_byte_data(i2c, reg, new_val);
+       }
+       mutex_unlock(&s2mpu09->i2c_lock);
+       return ret;
+}
+EXPORT_SYMBOL_GPL(s2mpu09_update_reg);
+
+#endif
+
+#if defined(CONFIG_OF)
+static int of_s2mpu09_dt(struct device *dev,
+                        struct s2mpu09_platform_data *pdata,
+                        struct s2mpu09_dev *s2mpu09)
+{
+       struct device_node *np = dev->of_node;
+       int ret, strlen;
+       const char *status;
+       u32 val;
+
+       if (!np)
+               return -EINVAL;
+
+       acpm_mfd_node = np;
+
+       pdata->irq_gpio = of_get_named_gpio(np, "s2mpu09,irq-gpio", 0);
+
+       status = of_get_property(np, "s2mpu09,wakeup", &strlen);
+       if (status == NULL)
+               return -EINVAL;
+       if (strlen > 0) {
+               if (!strcmp(status, "enabled") || !strcmp(status, "okay"))
+                       pdata->wakeup = true;
+               else
+                       pdata->wakeup = false;
+       }
+
+       if (of_get_property(np, "i2c-speedy-address", NULL))
+               pdata->use_i2c_speedy = true;
+
+       pr_info("%s: irq-gpio: %u \n", __func__, pdata->irq_gpio);
+
+       /* WTSR, SMPL */
+       pdata->wtsr_smpl = devm_kzalloc(dev, sizeof(*pdata->wtsr_smpl),
+                       GFP_KERNEL);
+       if (!pdata->wtsr_smpl)
+               return -ENOMEM;
+
+       status = of_get_property(np, "wtsr_en", &strlen);
+       if (status == NULL)
+               return -EINVAL;
+       if (strlen > 0) {
+               if (!strcmp(status, "enabled") || !strcmp(status, "okay"))
+                       pdata->wtsr_smpl->wtsr_en = true;
+               else
+                       pdata->wtsr_smpl->wtsr_en = false;
+       }
+
+       status = of_get_property(np, "smpl_en", &strlen);
+       if (status == NULL)
+               return -EINVAL;
+       if (strlen > 0) {
+               if (!strcmp(status, "enabled") || !strcmp(status, "okay"))
+                       pdata->wtsr_smpl->smpl_en = true;
+               else
+                       pdata->wtsr_smpl->smpl_en = false;
+       }
+
+       ret = of_property_read_u32(np, "wtsr_timer_val",
+                       &pdata->wtsr_smpl->wtsr_timer_val);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "smpl_timer_val",
+                       &pdata->wtsr_smpl->smpl_timer_val);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "check_jigon", &val);
+       if (ret)
+               return -EINVAL;
+       pdata->wtsr_smpl->check_jigon = !!val;
+
+       /* init time */
+       pdata->init_time = devm_kzalloc(dev, sizeof(*pdata->init_time),
+                       GFP_KERNEL);
+       if (!pdata->init_time)
+               return -ENOMEM;
+
+       ret = of_property_read_u32(np, "init_time,sec",
+                       &pdata->init_time->tm_sec);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,min",
+                       &pdata->init_time->tm_min);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,hour",
+                       &pdata->init_time->tm_hour);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,mday",
+                       &pdata->init_time->tm_mday);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,mon",
+                       &pdata->init_time->tm_mon);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,year",
+                       &pdata->init_time->tm_year);
+       if (ret)
+               return -EINVAL;
+
+       ret = of_property_read_u32(np, "init_time,wday",
+                       &pdata->init_time->tm_wday);
+       if (ret)
+               return -EINVAL;
+
+       /* rtc optimize */
+       ret = of_property_read_u32(np, "osc-bias-up", &val);
+       if (!ret)
+               pdata->osc_bias_up = val;
+       else
+               pdata->osc_bias_up = -1;
+
+       ret = of_property_read_u32(np, "rtc_cap_sel", &val);
+       if (!ret)
+               pdata->cap_sel = val;
+       else
+               pdata->cap_sel = -1;
+
+       ret = of_property_read_u32(np, "rtc_osc_xin", &val);
+       if (!ret)
+               pdata->osc_xin = val;
+       else
+               pdata->osc_xin = -1;
+
+       ret = of_property_read_u32(np, "rtc_osc_xout", &val);
+       if (!ret)
+               pdata->osc_xout = val;
+       else
+               pdata->osc_xout = -1;
+
+       return 0;
+}
+#else
+static int of_s2mpu09_dt(struct device *dev,
+                        struct s2mpu09_platform_data *pdata)
+{
+       return 0;
+}
+#endif /* CONFIG_OF */
+
+static int s2mpu09_i2c_probe(struct i2c_client *i2c,
+                               const struct i2c_device_id *dev_id)
+{
+       struct s2mpu09_dev *s2mpu09;
+       struct s2mpu09_platform_data *pdata = i2c->dev.platform_data;
+
+       u8 reg_data;
+       int ret = 0;
+
+       pr_info("%s:%s\n", MFD_DEV_NAME, __func__);
+
+       s2mpu09 = kzalloc(sizeof(struct s2mpu09_dev), GFP_KERNEL);
+       if (!s2mpu09) {
+               dev_err(&i2c->dev, "%s: Failed to alloc mem for s2mpu09\n",
+                                                                __func__);
+               return -ENOMEM;
+       }
+
+       if (i2c->dev.of_node) {
+               pdata = devm_kzalloc(&i2c->dev,
+                        sizeof(struct s2mpu09_platform_data), GFP_KERNEL);
+               if (!pdata) {
+                       dev_err(&i2c->dev, "Failed to allocate memory\n");
+                       ret = -ENOMEM;
+                       goto err;
+               }
+
+               ret = of_s2mpu09_dt(&i2c->dev, pdata, s2mpu09);
+               if (ret < 0) {
+                       dev_err(&i2c->dev, "Failed to get device of_node\n");
+                       goto err;
+               }
+
+               i2c->dev.platform_data = pdata;
+       } else
+               pdata = i2c->dev.platform_data;
+
+
+       s2mpu09->dev = &i2c->dev;
+       s2mpu09->i2c = i2c;
+       s2mpu09->irq = i2c->irq;
+       s2mpu09->device_type = S2MPU09X;
+
+       if (pdata) {
+               s2mpu09->pdata = pdata;
+
+               pdata->irq_base = irq_alloc_descs(-1, 0, S2MPU09_IRQ_NR, -1);
+               if (pdata->irq_base < 0) {
+                       pr_err("%s:%s irq_alloc_descs Fail! ret(%d)\n",
+                               MFD_DEV_NAME, __func__, pdata->irq_base);
+                       ret = -EINVAL;
+                       goto err;
+               } else
+                       s2mpu09->irq_base = pdata->irq_base;
+
+               s2mpu09->irq_gpio = pdata->irq_gpio;
+               s2mpu09->wakeup = pdata->wakeup;
+       } else {
+               ret = -EINVAL;
+               goto err;
+       }
+       mutex_init(&s2mpu09->i2c_lock);
+
+       i2c_set_clientdata(i2c, s2mpu09);
+
+       /* TODO */
+       if (s2mpu09_read_reg(i2c, S2MPU09_PMIC_REG_PMICID, &reg_data) < 0) {
+               dev_err(s2mpu09->dev,
+                       "device not found on this channel (this is not an error)\n");
+               ret = -ENODEV;
+               goto err_w_lock;
+       } else {
+               /* print rev */
+               s2mpu09->pmic_rev = reg_data;
+       }
+
+       s2mpu09->pmic = i2c_new_dummy(i2c->adapter, I2C_ADDR_PMIC);
+       s2mpu09->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
+
+       if (pdata->use_i2c_speedy) {
+               dev_err(s2mpu09->dev, "use_i2c_speedy was true\n");
+               s2mpu09->pmic->flags |= I2C_CLIENT_SPEEDY;
+               s2mpu09->rtc->flags |= I2C_CLIENT_SPEEDY;
+       }
+
+       i2c_set_clientdata(s2mpu09->pmic, s2mpu09);
+       i2c_set_clientdata(s2mpu09->rtc, s2mpu09);
+
+       pr_info("%s device found: rev.0x%2x\n", __func__, s2mpu09->pmic_rev);
+
+       ret = s2mpu09_irq_init(s2mpu09);
+       if (ret < 0)
+               goto err_irq_init;
+
+       ret = mfd_add_devices(s2mpu09->dev, -1, s2mpu09_devs,
+                       ARRAY_SIZE(s2mpu09_devs), NULL, 0, NULL);
+       if (ret < 0)
+               goto err_mfd;
+
+       device_init_wakeup(s2mpu09->dev, pdata->wakeup);
+
+       return ret;
+
+err_mfd:
+       mfd_remove_devices(s2mpu09->dev);
+err_irq_init:
+       i2c_unregister_device(s2mpu09->i2c);
+err_w_lock:
+       mutex_destroy(&s2mpu09->i2c_lock);
+err:
+       kfree(s2mpu09);
+       return ret;
+}
+
+static int s2mpu09_i2c_remove(struct i2c_client *i2c)
+{
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+
+       mfd_remove_devices(s2mpu09->dev);
+       i2c_unregister_device(s2mpu09->i2c);
+       kfree(s2mpu09);
+
+       return 0;
+}
+
+static const struct i2c_device_id s2mpu09_i2c_id[] = {
+       { MFD_DEV_NAME, TYPE_S2MPU09 },
+       { }
+};
+MODULE_DEVICE_TABLE(i2c, s2mpu09_i2c_id);
+
+#if defined(CONFIG_OF)
+static struct of_device_id s2mpu09_i2c_dt_ids[] = {
+       { .compatible = "samsung,s2mpu09mfd" },
+       { },
+};
+#endif /* CONFIG_OF */
+
+#if defined(CONFIG_PM)
+static int s2mpu09_suspend(struct device *dev)
+{
+       struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+
+       if (device_may_wakeup(dev))
+               enable_irq_wake(s2mpu09->irq);
+
+       disable_irq(s2mpu09->irq);
+
+       return 0;
+}
+
+static int s2mpu09_resume(struct device *dev)
+{
+       struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+       struct s2mpu09_dev *s2mpu09 = i2c_get_clientdata(i2c);
+
+#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
+       pr_info("%s:%s\n", MFD_DEV_NAME, __func__);
+#endif /* CONFIG_SAMSUNG_PRODUCT_SHIP */
+
+       if (device_may_wakeup(dev))
+               disable_irq_wake(s2mpu09->irq);
+
+       enable_irq(s2mpu09->irq);
+
+       return 0;
+}
+#else
+#define s2mpu09_suspend        NULL
+#define s2mpu09_resume NULL
+#endif /* CONFIG_PM */
+
+const struct dev_pm_ops s2mpu09_pm = {
+       .suspend_late = s2mpu09_suspend,
+       .resume_early = s2mpu09_resume,
+};
+
+static struct i2c_driver s2mpu09_i2c_driver = {
+       .driver         = {
+               .name   = MFD_DEV_NAME,
+               .owner  = THIS_MODULE,
+#if defined(CONFIG_PM)
+               .pm     = &s2mpu09_pm,
+#endif /* CONFIG_PM */
+#if defined(CONFIG_OF)
+               .of_match_table = s2mpu09_i2c_dt_ids,
+#endif /* CONFIG_OF */
+       },
+       .probe          = s2mpu09_i2c_probe,
+       .remove         = s2mpu09_i2c_remove,
+       .id_table       = s2mpu09_i2c_id,
+};
+
+static int __init s2mpu09_i2c_init(void)
+{
+       pr_info("%s:%s\n", MFD_DEV_NAME, __func__);
+       return i2c_add_driver(&s2mpu09_i2c_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(s2mpu09_i2c_init);
+
+static void __exit s2mpu09_i2c_exit(void)
+{
+       i2c_del_driver(&s2mpu09_i2c_driver);
+}
+module_exit(s2mpu09_i2c_exit);
+
+MODULE_DESCRIPTION("s2mpu09 multi-function core driver");
+MODULE_AUTHOR("Samsung Electronics");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/s2mpu09-irq.c b/drivers/mfd/s2mpu09-irq.c
new file mode 100644 (file)
index 0000000..ebf18d0
--- /dev/null
@@ -0,0 +1,311 @@
+/*
+ * s2mpu09-irq.c - Interrupt controller support for S2MPU09
+ *
+ * Copyright (C) 2016 Samsung Electronics Co.Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+*/
+
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/mfd/samsung/s2mpu09.h>
+#include <linux/mfd/samsung/s2mpu09-regulator.h>
+
+static const u8 s2mpu09_mask_reg[] = {
+       /* TODO: Need to check other INTMASK */
+       [PMIC_INT1] =   S2MPU09_PMIC_REG_INT1M,
+       [PMIC_INT2] =   S2MPU09_PMIC_REG_INT2M,
+       [PMIC_INT3] =   S2MPU09_PMIC_REG_INT3M,
+       [PMIC_INT4] =   S2MPU09_PMIC_REG_INT4M,
+       [PMIC_INT5] =   S2MPU09_PMIC_REG_INT5M,
+};
+
+static struct i2c_client *get_i2c(struct s2mpu09_dev *s2mpu09,
+                               enum s2mpu09_irq_source src)
+{
+       switch (src) {
+       case PMIC_INT1 ... PMIC_INT5:
+               return s2mpu09->pmic;
+       default:
+               return ERR_PTR(-EINVAL);
+       }
+}
+
+struct s2mpu09_irq_data {
+       int mask;
+       enum s2mpu09_irq_source group;
+};
+
+#define DECLARE_IRQ(idx, _group, _mask)                \
+       [(idx)] = { .group = (_group), .mask = (_mask) }
+static const struct s2mpu09_irq_data s2mpu09_irqs[] = {
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_PWRONR_INT1,       PMIC_INT1, 1 << 1),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_PWRONF_INT1,       PMIC_INT1, 1 << 0),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_JIGONBF_INT1,      PMIC_INT1, 1 << 2),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_JIGONBR_INT1,      PMIC_INT1, 1 << 3),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_ACOKF_INT1,        PMIC_INT1, 1 << 4),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_ACOKR_INT1,        PMIC_INT1, 1 << 5),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_PWRON1S_INT1,      PMIC_INT1, 1 << 6),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_MRB_INT1,          PMIC_INT1, 1 << 7),
+
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_RTC60S_INT2,       PMIC_INT2, 1 << 0),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_RTCA1_INT2,        PMIC_INT2, 1 << 1),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_RTCA0_INT2,        PMIC_INT2, 1 << 2),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SMPL_INT2,         PMIC_INT2, 1 << 3),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_RTC1S_INT2,        PMIC_INT2, 1 << 4),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_WTSR_INT2,         PMIC_INT2, 1 << 5),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_WTSRB_INT2,        PMIC_INT2, 1 << 7),
+
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_120C_INT3,         PMIC_INT3, 1 << 0),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_140C_INT3,         PMIC_INT3, 1 << 1),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_TSD_INT3,          PMIC_INT3, 1 << 2),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB1_INT3,        PMIC_INT3, 1 << 6),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB2_INT3,        PMIC_INT3, 1 << 7),
+
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB3_INT4,        PMIC_INT4, 1 << 0),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB4_INT4,        PMIC_INT4, 1 << 1),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB5_INT4,        PMIC_INT4, 1 << 2),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB6_INT4,        PMIC_INT4, 1 << 3),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB7_INT4,        PMIC_INT4, 1 << 4),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB8_INT4,        PMIC_INT4, 1 << 5),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB9_INT4,        PMIC_INT4, 1 << 6),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_OCPB10_INT4,       PMIC_INT4, 1 << 7),
+
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO2_INT5,       PMIC_INT5, 1 << 0),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO18_INT5,      PMIC_INT5, 1 << 1),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO19_INT5,      PMIC_INT5, 1 << 2),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO33_INT5,      PMIC_INT5, 1 << 3),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO34_INT5,      PMIC_INT5, 1 << 4),
+       DECLARE_IRQ(S2MPU09_PMIC_IRQ_SCLDO35_INT5,      PMIC_INT5, 1 << 5),
+};
+
+static void s2mpu09_irq_lock(struct irq_data *data)
+{
+       struct s2mpu09_dev *s2mpu09 = irq_get_chip_data(data->irq);
+
+       mutex_lock(&s2mpu09->irqlock);
+}
+
+static void s2mpu09_irq_sync_unlock(struct irq_data *data)
+{
+       struct s2mpu09_dev *s2mpu09 = irq_get_chip_data(data->irq);
+       int i;
+
+       for (i = 0; i < S2MPU09_IRQ_GROUP_NR; i++) {
+               u8 mask_reg = s2mpu09_mask_reg[i];
+               struct i2c_client *i2c = get_i2c(s2mpu09, i);
+
+               if (mask_reg == S2MPU09_REG_INVALID ||
+                               IS_ERR_OR_NULL(i2c))
+                       continue;
+               s2mpu09->irq_masks_cache[i] = s2mpu09->irq_masks_cur[i];
+
+               s2mpu09_write_reg(i2c, s2mpu09_mask_reg[i],
+                               s2mpu09->irq_masks_cur[i]);
+       }
+
+       mutex_unlock(&s2mpu09->irqlock);
+}
+
+static const inline struct s2mpu09_irq_data *
+irq_to_s2mpu09_irq(struct s2mpu09_dev *s2mpu09, int irq)
+{
+       return &s2mpu09_irqs[irq - s2mpu09->irq_base];
+}
+
+static void s2mpu09_irq_mask(struct irq_data *data)
+{
+       struct s2mpu09_dev *s2mpu09 = irq_get_chip_data(data->irq);
+       const struct s2mpu09_irq_data *irq_data =
+           irq_to_s2mpu09_irq(s2mpu09, data->irq);
+
+       if (irq_data->group >= S2MPU09_IRQ_GROUP_NR)
+               return;
+
+       s2mpu09->irq_masks_cur[irq_data->group] |= irq_data->mask;
+}
+
+static void s2mpu09_irq_unmask(struct irq_data *data)
+{
+       struct s2mpu09_dev *s2mpu09 = irq_get_chip_data(data->irq);
+       const struct s2mpu09_irq_data *irq_data =
+           irq_to_s2mpu09_irq(s2mpu09, data->irq);
+
+       if (irq_data->group >= S2MPU09_IRQ_GROUP_NR)
+               return;
+
+       s2mpu09->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
+}
+
+static struct irq_chip s2mpu09_irq_chip = {
+       .name                   = MFD_DEV_NAME,
+       .irq_bus_lock           = s2mpu09_irq_lock,
+       .irq_bus_sync_unlock    = s2mpu09_irq_sync_unlock,
+       .irq_mask               = s2mpu09_irq_mask,
+       .irq_unmask             = s2mpu09_irq_unmask,
+};
+
+static irqreturn_t s2mpu09_irq_thread(int irq, void *data)
+{
+       struct s2mpu09_dev *s2mpu09 = data;
+       u8 irq_reg[S2MPU09_IRQ_GROUP_NR] = {0};
+       u8 irq_src;
+       int i, ret;
+
+       //pr_debug("%s: irq gpio pre-state(0x%02x)\n", __func__,
+       pr_err("%s: irq gpio pre-state(0x%02x)\n", __func__,
+                               gpio_get_value(s2mpu09->irq_gpio));
+
+       ret = s2mpu09_read_reg(s2mpu09->i2c,
+                                       S2MPU09_PMIC_REG_INTSRC, &irq_src);
+       pr_err("%s: interrupt source(0x%02x)\n", __func__, irq_src);
+       if (ret) {
+               pr_err("%s:%s Failed to read interrupt source: %d\n",
+                       MFD_DEV_NAME, __func__, ret);
+               return IRQ_NONE;
+       }
+
+       pr_info("%s: interrupt source(0x%02x)\n", __func__, irq_src);
+
+       if (irq_src & S2MPU09_IRQSRC_PMIC) {
+               /* PMIC_INT */
+               ret = s2mpu09_bulk_read(s2mpu09->pmic, S2MPU09_PMIC_REG_INT1,
+                               S2MPU09_NUM_IRQ_PMIC_REGS, &irq_reg[PMIC_INT1]);
+               if (ret) {
+                       pr_err("%s:%s Failed to read pmic interrupt: %d\n",
+                               MFD_DEV_NAME, __func__, ret);
+                       return IRQ_NONE;
+               }
+
+               pr_info("%s: pmic interrupt(0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x)\n",
+                        __func__, irq_reg[PMIC_INT1], irq_reg[PMIC_INT2], irq_reg[PMIC_INT3],
+                        irq_reg[PMIC_INT4], irq_reg[PMIC_INT5]);
+       }
+
+       /* Apply masking */
+       for (i = 0; i < S2MPU09_IRQ_GROUP_NR; i++)
+               irq_reg[i] &= ~s2mpu09->irq_masks_cur[i];
+
+       /* Report */
+       for (i = 0; i < S2MPU09_IRQ_NR; i++) {
+               if (irq_reg[s2mpu09_irqs[i].group] & s2mpu09_irqs[i].mask)
+                       handle_nested_irq(s2mpu09->irq_base + i);
+       }
+
+       return IRQ_HANDLED;
+}
+
+int s2mpu09_irq_init(struct s2mpu09_dev *s2mpu09)
+{
+       int i;
+       int ret;
+       u8 i2c_data;
+       int cur_irq;
+
+       if (!s2mpu09->irq_gpio) {
+               dev_warn(s2mpu09->dev, "No interrupt specified.\n");
+               s2mpu09->irq_base = 0;
+               return 0;
+       }
+
+       if (!s2mpu09->irq_base) {
+               dev_err(s2mpu09->dev, "No interrupt base specified.\n");
+               return 0;
+       }
+
+       mutex_init(&s2mpu09->irqlock);
+
+       s2mpu09->irq = gpio_to_irq(s2mpu09->irq_gpio);
+       pr_info("%s:%s irq=%d, irq->gpio=%d\n", MFD_DEV_NAME, __func__,
+                       s2mpu09->irq, s2mpu09->irq_gpio);
+
+       ret = gpio_request(s2mpu09->irq_gpio, "pmic_irq");
+       if (ret) {
+               dev_err(s2mpu09->dev, "%s: failed requesting gpio %d\n",
+                       __func__, s2mpu09->irq_gpio);
+               return ret;
+       }
+       gpio_direction_input(s2mpu09->irq_gpio);
+       gpio_free(s2mpu09->irq_gpio);
+
+       /* Mask individual interrupt sources */
+       for (i = 0; i < S2MPU09_IRQ_GROUP_NR; i++) {
+               struct i2c_client *i2c;
+
+               s2mpu09->irq_masks_cur[i] = 0xff;
+               s2mpu09->irq_masks_cache[i] = 0xff;
+
+               i2c = get_i2c(s2mpu09, i);
+
+               if (IS_ERR_OR_NULL(i2c))
+                       continue;
+               if (s2mpu09_mask_reg[i] == S2MPU09_REG_INVALID)
+                       continue;
+
+               s2mpu09_write_reg(i2c, s2mpu09_mask_reg[i], 0xff);
+       }
+
+       /* Register with genirq */
+       for (i = 0; i < S2MPU09_IRQ_NR; i++) {
+               cur_irq = i + s2mpu09->irq_base;
+               irq_set_chip_data(cur_irq, s2mpu09);
+               irq_set_chip_and_handler(cur_irq, &s2mpu09_irq_chip,
+                                        handle_level_irq);
+               irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+               set_irq_flags(cur_irq, IRQF_VALID);
+#else
+               irq_set_noprobe(cur_irq);
+#endif
+       }
+
+       s2mpu09_write_reg(s2mpu09->i2c, S2MPU09_PMIC_REG_INTSRC_MASK, 0xff);
+       /* Unmask s2mpu09 interrupt */
+       ret = s2mpu09_read_reg(s2mpu09->i2c, S2MPU09_PMIC_REG_INTSRC_MASK,
+                         &i2c_data);
+       if (ret) {
+               pr_err("%s:%s fail to read intsrc mask reg\n",
+                                        MFD_DEV_NAME, __func__);
+               return ret;
+       }
+
+       i2c_data &= ~(S2MPU09_IRQSRC_PMIC);     /* Unmask pmic interrupt */
+       s2mpu09_write_reg(s2mpu09->i2c, S2MPU09_PMIC_REG_INTSRC_MASK,
+                          i2c_data);
+
+       pr_info("%s:%s s2mpu09_PMIC_REG_INTSRC_MASK=0x%02x\n",
+                       MFD_DEV_NAME, __func__, i2c_data);
+
+       ret = request_threaded_irq(s2mpu09->irq, NULL, s2mpu09_irq_thread,
+                                  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+                                  "s2mpu09-irq", s2mpu09);
+
+       if (ret) {
+               dev_err(s2mpu09->dev, "Failed to request IRQ %d: %d\n",
+                       s2mpu09->irq, ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+void s2mpu09_irq_exit(struct s2mpu09_dev *s2mpu09)
+{
+       if (s2mpu09->irq)
+               free_irq(s2mpu09->irq, s2mpu09);
+}
diff --git a/include/linux/mfd/samsung/s2mpu09-regulator.h b/include/linux/mfd/samsung/s2mpu09-regulator.h
new file mode 100644 (file)
index 0000000..da0fd9e
--- /dev/null
@@ -0,0 +1,369 @@
+/*
+ * s2mpu09-regulator.h - Voltage regulator driver for the s2mpu09
+ *
+ *  Copyright (C) 2016 Samsung Electrnoics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __LINUX_MFD_S2MPU09_PRIV_H
+#define __LINUX_MFD_S2MPU09_PRIV_H
+
+#include <linux/i2c.h>
+#define S2MPU09_REG_INVALID             (0xff)
+#define S2MPU09_IRQSRC_PMIC                    (1 << 0)
+
+/* PMIC Top-Level Registers */
+#define        S2MPU09_PMIC_REG_PMICID         0x00
+#define        S2MPU09_PMIC_REG_INTSRC         0x01
+#define        S2MPU09_PMIC_REG_INTSRC_MASK    0x02
+
+/* Slave addr = 0xCC */
+/* PMIC Registers */
+#define S2MPU09_PMIC_REG_INT1          0x00
+#define S2MPU09_PMIC_REG_INT2          0x01
+#define S2MPU09_PMIC_REG_INT3          0x02
+#define S2MPU09_PMIC_REG_INT4          0x03
+#define S2MPU09_PMIC_REG_INT5          0x04
+#define S2MPU09_PMIC_REG_INT1M         0x05
+#define S2MPU09_PMIC_REG_INT2M         0x06
+#define S2MPU09_PMIC_REG_INT3M         0x07
+#define S2MPU09_PMIC_REG_INT4M         0x08
+#define S2MPU09_PMIC_REG_INT5M         0x09
+#define S2MPU09_PMIC_REG_STATUS1       0x0A
+#define S2MPU09_PMIC_REG_STATUS2       0x0B
+#define S2MPU09_PMIC_REG_PWRONSRC      0x0C
+#define S2MPU09_PMIC_REG_OFFSRC                0x0D
+
+#define S2MPU09_PMIC_REG_BUCHG         0x0E
+#define S2MPU09_PMIC_REG_RTCBUF                0x0F
+#define S2MPU09_PMIC_REG_CTRL1         0x10
+#define S2MPU09_PMIC_REG_CTRL2         0x11
+#define S2MPU09_PMIC_REG_CTRL3         0x12
+#define S2MPU09_PMIC_REG_ETCOTP                0x13
+#define S2MPU09_PMIC_REG_UVLOOTP       0x14
+#define S2MPU09_PMIC_REG_UVLOTRIM      0x15
+#define S2MPU09_PMIC_REG_CFG1          0x16
+#define S2MPU09_PMIC_REG_CFG2          0x17
+
+#define S2MPU09_PMIC_REG_B1CTRL                0x18
+#define S2MPU09_PMIC_REG_B1OUT         0x19
+#define S2MPU09_PMIC_REG_B2CTRL                0x1A
+#define S2MPU09_PMIC_REG_B2OUT         0x1B
+#define S2MPU09_PMIC_REG_B3CTRL                0x1C
+#define S2MPU09_PMIC_REG_B3OUT         0x1D
+#define S2MPU09_PMIC_REG_B4CTRL                0x1E
+#define S2MPU09_PMIC_REG_B4OUT         0x1F
+#define S2MPU09_PMIC_REG_B5CTRL                0x20
+#define S2MPU09_PMIC_REG_B5OUT         0x21
+#define S2MPU09_PMIC_REG_B6CTRL                0x22
+#define S2MPU09_PMIC_REG_B6OUT         0x23
+#define S2MPU09_PMIC_REG_B7CTRL                0x24
+#define S2MPU09_PMIC_REG_B7OUT         0x25
+#define S2MPU09_PMIC_REG_B8CTRL                0x26
+#define S2MPU09_PMIC_REG_B8OUT1                0x27
+#define S2MPU09_PMIC_REG_B8OUT2                0x28
+#define S2MPU09_PMIC_REG_B9CTRL                0x29
+#define S2MPU09_PMIC_REG_B9OUT1                0x2A
+#define S2MPU09_PMIC_REG_B9OUT2                0x2B
+#define S2MPU09_PMIC_REG_B10CTRL       0x2C
+#define S2MPU09_PMIC_REG_B10OUT                0x2D
+
+#define S2MPU09_PMIC_REG_BUCKRAMP1     0x2E
+#define S2MPU09_PMIC_REG_BUCKRAMP2     0x2F
+#define S2MPU09_PMIC_REG_LDORAMP1      0x30
+#define S2MPU09_PMIC_REG_OCPWARN1      0x31
+#define S2MPU09_PMIC_REG_BUCK2_PH_DVS  0x32
+#define S2MPU09_PMIC_REG_LDO8_DVS      0x33
+#define S2MPU09_PMIC_REG_LDO9_DVS      0x34
+#define S2MPU09_PMIC_REG_LDO10_DVS     0x35
+#define S2MPU09_PMIC_REG_LDO11_DVS     0x36
+#define S2MPU09_PMIC_REG_LDO36_DVS     0x37
+#define S2MPU09_PMIC_REG_LDO43_DVS     0x38
+
+#define S2MPU09_PMIC_REG_L1CTRL                0x39
+#define S2MPU09_PMIC_REG_L2CTRL1       0x3A
+#define S2MPU09_PMIC_REG_L2CTRL2       0x3B
+#define S2MPU09_PMIC_REG_L3CTRL                0x3C
+#define S2MPU09_PMIC_REG_L4CTRL                0x3D
+#define S2MPU09_PMIC_REG_L5CTRL                0x3E
+#define S2MPU09_PMIC_REG_L6CTRL                0x3F
+#define S2MPU09_PMIC_REG_L7CTRL                0x40
+#define S2MPU09_PMIC_REG_L8CTRL                0x41
+#define S2MPU09_PMIC_REG_L9CTRL                0x42
+#define S2MPU09_PMIC_REG_L10CTRL       0x43
+#define S2MPU09_PMIC_REG_L11CTRL       0x44
+#define S2MPU09_PMIC_REG_L12CTRL       0x45
+#define S2MPU09_PMIC_REG_L13CTRL       0x46
+#define S2MPU09_PMIC_REG_L14CTRL       0x47
+#define S2MPU09_PMIC_REG_L15CTRL       0x48
+#define S2MPU09_PMIC_REG_L16CTRL       0x49
+#define S2MPU09_PMIC_REG_L17CTRL       0x4A
+#define S2MPU09_PMIC_REG_L18CTRL       0x4B
+#define S2MPU09_PMIC_REG_L19CTRL       0x4C
+#define S2MPU09_PMIC_REG_L20CTRL       0x4D
+#define S2MPU09_PMIC_REG_L21CTRL       0x4E
+#define S2MPU09_PMIC_REG_L22CTRL       0x4F
+#define S2MPU09_PMIC_REG_L23CTRL       0x50
+#define S2MPU09_PMIC_REG_L24CTRL       0x51
+#define S2MPU09_PMIC_REG_L25CTRL       0x52
+#define S2MPU09_PMIC_REG_L26CTRL       0x53
+#define S2MPU09_PMIC_REG_L27CTRL       0x54
+#define S2MPU09_PMIC_REG_L28CTRL       0x55
+#define S2MPU09_PMIC_REG_L29CTRL       0x56
+#define S2MPU09_PMIC_REG_L30CTRL       0x57
+#define S2MPU09_PMIC_REG_L31CTRL       0x58
+#define S2MPU09_PMIC_REG_L32CTRL       0x59
+#define S2MPU09_PMIC_REG_L33CTRL       0x5A
+#define S2MPU09_PMIC_REG_L34CTRL       0x5B
+#define S2MPU09_PMIC_REG_L35CTRL       0x5C
+#define S2MPU09_PMIC_REG_L36CTRL       0x5D
+#define S2MPU09_PMIC_REG_L37CTRL       0x5E
+#define S2MPU09_PMIC_REG_L38CTRL       0x5F
+#define S2MPU09_PMIC_REG_L39CTRL       0x60
+#define S2MPU09_PMIC_REG_L40CTRL       0x61
+#define S2MPU09_PMIC_REG_L41CTRL       0x62
+#define S2MPU09_PMIC_REG_L42CTRL       0x63
+#define S2MPU09_PMIC_REG_L43CTRL       0x64
+#define S2MPU09_PMIC_REG_L44CTRL       0x65
+
+#define S2MPU09_PMIC_REG_LDO_DSCH1     0x66
+#define S2MPU09_PMIC_REG_LDO_DSCH2     0x67
+#define S2MPU09_PMIC_REG_LDO_DSCH3     0x68
+#define S2MPU09_PMIC_REG_LDO_DSCH4     0x69
+#define S2MPU09_PMIC_REG_LDO_DSCH5     0x6A
+#define S2MPU09_PMIC_REG_LDO_DSCH6     0x6B
+#define S2MPU09_PMIC_REG_LDO_SIM_RF    0x6C
+#define S2MPU09_PMIC_REG_LDO_DRAM1     0x6D
+#define S2MPU09_PMIC_REG_LDO_DRAM2     0x6E
+#define S2MPU09_PMIC_REG_LDO_CTRL1     0x6F
+#define S2MPU09_PMIC_REG_LDO_CTRL2     0x70
+#define S2MPU09_PMIC_REG_OFF_SEQ       0x75
+#define S2MPU09_PMIC_REG_TCXO_CTRL     0x76
+
+#define S2MPU09_PMIC_REG_SELMIF0       0xA7
+#define S2MPU09_PMIC_REG_SELMIF1       0xA8
+#define S2MPU09_PMIC_REG_EXT_EN                0xAD
+#define S2MPU09_PMIC_REG_EXT_CTRL      0xFF
+
+/* S2MPU09 regulator ids */
+
+enum S2MPU09_regulators {
+       S2MPU09_LDO1,
+       S2MPU09_LDO2,
+       S2MPU09_LDO3,
+       S2MPU09_LDO4,
+       S2MPU09_LDO5,
+       S2MPU09_LDO6,
+       S2MPU09_LDO7,
+       S2MPU09_LDO8,
+       S2MPU09_LDO9,
+       S2MPU09_LDO10,
+       S2MPU09_LDO11,
+       S2MPU09_LDO12,
+       S2MPU09_LDO13,
+       S2MPU09_LDO14,
+/*     S2MPU09_LDO15,
+       S2MPU09_LDO16,
+       S2MPU09_LDO17,
+       S2MPU09_LDO18,
+       S2MPU09_LDO19,
+       S2MPU09_LDO20,
+       S2MPU09_LDO21,
+       S2MPU09_LDO22,
+       S2MPU09_LDO23,
+       S2MPU09_LDO24,
+       S2MPU09_LDO25,
+       S2MPU09_LDO24,
+       S2MPU09_LDO25,
+       S2MPU09_LDO26,
+       S2MPU09_LDO27,
+       S2MPU09_LDO28,
+       S2MPU09_LDO29,
+       S2MPU09_LDO30,
+       S2MPU09_LDO31,
+       S2MPU09_LDO32,
+*/     S2MPU09_LDO33,
+       S2MPU09_LDO34,
+       S2MPU09_LDO35,
+       S2MPU09_LDO36,
+       S2MPU09_LDO37,
+       S2MPU09_LDO38,
+       S2MPU09_LDO39,
+       S2MPU09_LDO40,
+       S2MPU09_LDO41,
+       S2MPU09_LDO42,
+       S2MPU09_LDO43,
+       S2MPU09_LDO44,
+       S2MPU09_BUCK1,
+       S2MPU09_BUCK2,
+       S2MPU09_BUCK3,
+       S2MPU09_BUCK4,
+       S2MPU09_BUCK5,
+       S2MPU09_BUCK6,
+       S2MPU09_BUCK7,
+       S2MPU09_BUCK8,
+       S2MPU09_BUCK9,
+//     S2MPU09_BUCK10,
+       S2MPU09_REG_MAX,
+};
+
+#define S2MPU09_BUCK_MIN1      300000
+#define S2MPU09_BUCK_MIN2      600000
+#define S2MPU09_LDO_MIN1       300000
+#define S2MPU09_LDO_MIN2       400000
+#define S2MPU09_LDO_MIN3       700000
+#define S2MPU09_LDO_MIN4       1800000
+#define S2MPU09_BUCK_STEP1     6250
+#define S2MPU09_BUCK_STEP2     12500
+#define S2MPU09_LDO_STEP1      12500
+#define S2MPU09_LDO_STEP2      25000
+#define S2MPU09_LDO_VSEL_MASK  0x3F
+#define S2MPU09_BUCK_VSEL_MASK 0xFF
+#define S2MPU09_ENABLE_MASK    (0x03 << S2MPU09_ENABLE_SHIFT)
+#define S2MPU09_SW_ENABLE_MASK 0x03
+#define S2MPU09_RAMP_DELAY     12000
+
+#define S2MPU09_ENABLE_TIME_LDO                128
+#define S2MPU09_ENABLE_TIME_BUCK1      110
+#define S2MPU09_ENABLE_TIME_BUCK2      110
+#define S2MPU09_ENABLE_TIME_BUCK3      110
+#define S2MPU09_ENABLE_TIME_BUCK4      150
+#define S2MPU09_ENABLE_TIME_BUCK5      150
+#define S2MPU09_ENABLE_TIME_BUCK6      150
+#define S2MPU09_ENABLE_TIME_BUCK7      150
+#define S2MPU09_ENABLE_TIME_BUCK8      150
+#define S2MPU09_ENABLE_TIME_BUCK9      150
+#define S2MPU09_ENABLE_TIME_BUCK10     150
+
+#define S2MPU09_ENABLE_SHIFT   0x06
+#define S2MPU09_LDO_N_VOLTAGES (S2MPU09_LDO_VSEL_MASK + 1)
+#define S2MPU09_BUCK_N_VOLTAGES (S2MPU09_BUCK_VSEL_MASK + 1)
+
+#define S2MPU09_PMIC_EN_SHIFT  6
+#define S2MPU09_REGULATOR_MAX (S2MPU09_REG_MAX)
+#define SEC_PMIC_REV(iodev)    (iodev)->pmic_rev
+
+/*
+ * sec_opmode_data - regulator operation mode data
+ * @id: regulator id
+ * @mode: regulator operation mode
+ */
+
+enum s2mpu09_irq_source {
+       PMIC_INT1 = 0,
+       PMIC_INT2,
+       PMIC_INT3,
+       PMIC_INT4,
+       PMIC_INT5,
+
+       S2MPU09_IRQ_GROUP_NR,
+};
+
+#define S2MPU09_NUM_IRQ_PMIC_REGS      5
+
+enum s2mpu09_irq {
+       /* PMIC */
+       S2MPU09_PMIC_IRQ_PWRONF_INT1,
+       S2MPU09_PMIC_IRQ_PWRONR_INT1,
+       S2MPU09_PMIC_IRQ_JIGONBF_INT1,
+       S2MPU09_PMIC_IRQ_JIGONBR_INT1,
+       S2MPU09_PMIC_IRQ_ACOKF_INT1,
+       S2MPU09_PMIC_IRQ_ACOKR_INT1,
+       S2MPU09_PMIC_IRQ_PWRON1S_INT1,
+       S2MPU09_PMIC_IRQ_MRB_INT1,
+
+       S2MPU09_PMIC_IRQ_RTC60S_INT2,
+       S2MPU09_PMIC_IRQ_RTCA1_INT2,
+       S2MPU09_PMIC_IRQ_RTCA0_INT2,
+       S2MPU09_PMIC_IRQ_SMPL_INT2,
+       S2MPU09_PMIC_IRQ_RTC1S_INT2,
+       S2MPU09_PMIC_IRQ_WTSR_INT2,
+       S2MPU09_PMIC_IRQ_WTSRB_INT2,
+
+       S2MPU09_PMIC_IRQ_120C_INT3,
+       S2MPU09_PMIC_IRQ_140C_INT3,
+       S2MPU09_PMIC_IRQ_TSD_INT3,
+       S2MPU09_PMIC_IRQ_OCPB1_INT3,
+       S2MPU09_PMIC_IRQ_OCPB2_INT3,
+
+       S2MPU09_PMIC_IRQ_OCPB3_INT4,
+       S2MPU09_PMIC_IRQ_OCPB4_INT4,
+       S2MPU09_PMIC_IRQ_OCPB5_INT4,
+       S2MPU09_PMIC_IRQ_OCPB6_INT4,
+       S2MPU09_PMIC_IRQ_OCPB7_INT4,
+       S2MPU09_PMIC_IRQ_OCPB8_INT4,
+       S2MPU09_PMIC_IRQ_OCPB9_INT4,
+       S2MPU09_PMIC_IRQ_OCPB10_INT4,
+
+       S2MPU09_PMIC_IRQ_SCLDO2_INT5,
+       S2MPU09_PMIC_IRQ_SCLDO18_INT5,
+       S2MPU09_PMIC_IRQ_SCLDO19_INT5,
+       S2MPU09_PMIC_IRQ_SCLDO33_INT5,
+       S2MPU09_PMIC_IRQ_SCLDO34_INT5,
+       S2MPU09_PMIC_IRQ_SCLDO35_INT5,
+
+       S2MPU09_IRQ_NR,
+};
+
+
+enum sec_device_type {
+       S2MPU09X,
+};
+
+struct s2mpu09_dev {
+       struct device *dev;
+       struct i2c_client *i2c;
+       struct i2c_client *pmic;
+       struct i2c_client *rtc;
+       struct mutex i2c_lock;
+       struct apm_ops *ops;
+
+       int type;
+       int device_type;
+       int irq;
+       int irq_base;
+       int irq_gpio;
+       bool wakeup;
+       struct mutex irqlock;
+       int irq_masks_cur[S2MPU09_IRQ_GROUP_NR];
+       int irq_masks_cache[S2MPU09_IRQ_GROUP_NR];
+
+       /* pmic REV register */
+       u8 pmic_rev;    /* pmic Rev */
+
+       struct s2mpu09_platform_data *pdata;
+};
+
+enum s2mpu09_types {
+       TYPE_S2MPU09,
+};
+
+extern int s2mpu09_irq_init(struct s2mpu09_dev *s2mpu09);
+extern void s2mpu09_irq_exit(struct s2mpu09_dev *s2mpu09);
+
+/* S2MPU09 shared i2c API function */
+extern int s2mpu09_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
+extern int s2mpu09_bulk_read(struct i2c_client *i2c, u8 reg, int count,
+                               u8 *buf);
+extern int s2mpu09_write_reg(struct i2c_client *i2c, u8 reg, u8 value);
+extern int s2mpu09_bulk_write(struct i2c_client *i2c, u8 reg, int count,
+                               u8 *buf);
+extern int s2mpu09_write_word(struct i2c_client *i2c, u8 reg, u16 value);
+extern int s2mpu09_read_word(struct i2c_client *i2c, u8 reg);
+
+extern int s2mpu09_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
+
+#endif /* __LINUX_MFD_S2MPU09_PRIV_H */
diff --git a/include/linux/mfd/samsung/s2mpu09.h b/include/linux/mfd/samsung/s2mpu09.h
new file mode 100644 (file)
index 0000000..86b7ccd
--- /dev/null
@@ -0,0 +1,119 @@
+/*
+ * s2mpu09.h - Driver for the s2mpu09
+ *
+ *  Copyright (C) 2016 Samsung Electrnoics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef __S2MPU09_MFD_H__
+#define __S2MPU09_MFD_H__
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MFD_DEV_NAME "s2mpu09"
+/**
+ * sec_regulator_data - regulator data
+ * @id: regulator id
+ * @initdata: regulator init data (contraints, supplies, ...)
+ */
+struct s2mpu09_regulator_data {
+       int id;
+       struct regulator_init_data *initdata;
+       struct device_node *reg_node;
+};
+
+/*
+ * sec_opmode_data - regulator operation mode data
+ * @id: regulator id
+ * @mode: regulator operation mode
+ */
+struct sec_opmode_data {
+       int id;
+       unsigned int mode;
+};
+
+/*
+ * samsung regulator operation mode
+ * SEC_OPMODE_OFF      Regulator always OFF
+ * SEC_OPMODE_ON       Regulator always ON
+ * SEC_OPMODE_LOWPOWER  Regulator is on in low-power mode
+ * SEC_OPMODE_SUSPEND   Regulator is changed by PWREN pin
+ *                     If PWREN is high, regulator is on
+ *                     If PWREN is low, regulator is off
+ */
+
+/* TODO */
+enum sec_opmode {
+       SEC_OPMODE_OFF,
+       SEC_OPMODE_SUSPEND,
+       SEC_OPMODE_LOWPOWER,
+       SEC_OPMODE_ON,
+       SEC_OPMODE_TCXO = 0x2,
+       SEC_OPMODE_MIF = 0x2,
+};
+
+/**
+ * struct sec_wtsr_smpl - settings for WTSR/SMPL
+ * @wtsr_en:           WTSR Function Enable Control
+ * @smpl_en:           SMPL Function Enable Control
+ * @wtsr_timer_val:    Set the WTSR timer Threshold
+ * @smpl_timer_val:    Set the SMPL timer Threshold
+ * @check_jigon:       if this value is true, do not enable SMPL function when
+ *                     JIGONB is low(JIG cable is attached)
+ */
+struct sec_wtsr_smpl {
+       bool wtsr_en;
+       bool smpl_en;
+       int wtsr_timer_val;
+       int smpl_timer_val;
+       bool check_jigon;
+};
+
+struct s2mpu09_platform_data {
+       /* IRQ */
+       int irq_base;
+       int irq_gpio;
+       bool wakeup;
+
+       int num_regulators;
+       struct  s2mpu09_regulator_data *regulators;
+       struct  sec_opmode_data         *opmode;
+       struct  mfd_cell *sub_devices;
+       int     num_subdevs;
+
+       int     (*cfg_pmic_irq)(void);
+       int     device_type;
+       int     ono;
+       int     buck_ramp_delay;
+
+       /* ---- RTC ---- */
+       struct sec_wtsr_smpl *wtsr_smpl;
+/*     struct sec_rtc_time *init_time; */
+       struct rtc_time *init_time;
+       int     osc_bias_up;
+       int     cap_sel;
+       int     osc_xin;
+       int     osc_xout;
+
+       bool    use_i2c_speedy;
+};
+
+struct s2mpu09 {
+       struct regmap *regmap;
+};
+
+#endif /* __S2MPU09_MFD_H__ */