Merge remote-tracking branches 'regulator/topic/max77686', 'regulator/topic/max8973', 'regulator/topic/maxim', 'regulator/topic/palmas' and 'regulator/topic/pv88080' into regulator-next
diff --git a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
index f80ea2f..c2c68fc 100644
--- a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt
@@ -32,6 +32,13 @@
Enhanced transient response (ETR) will affect the configuration of CKADV.
+-junction-warn-millicelsius: u32, junction warning temperature threshold
+ in millicelsius. If die temperature crosses this level then
+ device generates the warning interrupts.
+
+Please note that thermal functionality is only supported on MAX77621. The
+supported threshold warning temperature for MAX77621 are 120 degC and 140 degC.
+
Example:
max8973@1b {
diff --git a/Documentation/devicetree/bindings/regulator/pv88080.txt b/Documentation/devicetree/bindings/regulator/pv88080.txt
new file mode 100644
index 0000000..38a6142
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/pv88080.txt
@@ -0,0 +1,49 @@
+* Powerventure Semiconductor PV88080 Voltage Regulator
+
+Required properties:
+- compatible: "pvs,pv88080".
+- reg: I2C slave address, usually 0x49.
+- interrupts: the interrupt outputs of the controller
+- regulators: A node that houses a sub-node for each regulator within the
+ device. Each sub-node is identified using the node's name, with valid
+ values listed below. The content of each sub-node is defined by the
+ standard binding for regulators; see regulator.txt.
+ BUCK1, BUCK2, and BUCK3.
+
+Optional properties:
+- Any optional property defined in regulator.txt
+
+Example
+
+ pmic: pv88080@49 {
+ compatible = "pvs,pv88080";
+ reg = <0x49>;
+ interrupt-parent = <&gpio>;
+ interrupts = <24 24>;
+
+ regulators {
+ BUCK1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1393750>;
+ regulator-min-microamp = < 220000>;
+ regulator-max-microamp = <7040000>;
+ };
+
+ BUCK2 {
+ regulator-name = "buck2";
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1393750>;
+ regulator-min-microamp = <1496000>;
+ regulator-max-microamp = <4189000>;
+ };
+
+ BUCK3 {
+ regulator-name = "buck3";
+ regulator-min-microvolt = <1400000>;
+ regulator-max-microvolt = <2193750>;
+ regulator-min-microamp = <1496000>;
+ regulator-max-microamp = <4189000>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index fce0ba5..17cf9e6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7020,9 +7020,9 @@
M: Krzysztof Kozlowski <k.kozlowski@samsung.com>
L: linux-kernel@vger.kernel.org
S: Supported
-F: drivers/*/max14577.c
+F: drivers/*/max14577*.c
F: drivers/*/max77686*.c
-F: drivers/*/max77693.c
+F: drivers/*/max77693*.c
F: drivers/extcon/extcon-max14577.c
F: drivers/extcon/extcon-max77693.c
F: drivers/rtc/rtc-max77686.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 4d2d737..144cbf5 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -418,6 +418,7 @@
config REGULATOR_MAX8973
tristate "Maxim MAX8973 voltage regulator "
depends on I2C
+ depends on THERMAL && THERMAL_OF
select REGMAP_I2C
help
The MAXIM MAX8973 high-efficiency. three phase, DC-DC step-down
@@ -557,6 +558,13 @@
Say y here to support the voltage regulators and convertors
PV88060
+config REGULATOR_PV88080
+ tristate "Powerventure Semiconductor PV88080 regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say y here to support the buck convertors on PV88080
+
config REGULATOR_PV88090
tristate "Powerventure Semiconductor PV88090 regulator"
depends on I2C
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 7182b5f..85a1d44 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -47,7 +47,7 @@
obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o
obj-$(CONFIG_REGULATOR_LTC3589) += ltc3589.o
-obj-$(CONFIG_REGULATOR_MAX14577) += max14577.o
+obj-$(CONFIG_REGULATOR_MAX14577) += max14577-regulator.o
obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o
obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
@@ -56,10 +56,10 @@
obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o
obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o
obj-$(CONFIG_REGULATOR_MAX8973) += max8973-regulator.o
-obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o
+obj-$(CONFIG_REGULATOR_MAX8997) += max8997-regulator.o
obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o
obj-$(CONFIG_REGULATOR_MAX77686) += max77686-regulator.o
-obj-$(CONFIG_REGULATOR_MAX77693) += max77693.o
+obj-$(CONFIG_REGULATOR_MAX77693) += max77693-regulator.o
obj-$(CONFIG_REGULATOR_MAX77802) += max77802-regulator.o
obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o
obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
@@ -72,6 +72,7 @@
obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o
+obj-$(CONFIG_REGULATOR_PV88080) += pv88080-regulator.o
obj-$(CONFIG_REGULATOR_PV88090) += pv88090-regulator.o
obj-$(CONFIG_REGULATOR_PWM) += pwm-regulator.o
obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o
diff --git a/drivers/regulator/max14577.c b/drivers/regulator/max14577-regulator.c
similarity index 100%
rename from drivers/regulator/max14577.c
rename to drivers/regulator/max14577-regulator.c
diff --git a/drivers/regulator/max77686-regulator.c b/drivers/regulator/max77686-regulator.c
index 17ccf36..ac4fa58 100644
--- a/drivers/regulator/max77686-regulator.c
+++ b/drivers/regulator/max77686-regulator.c
@@ -41,6 +41,8 @@
#define MAX77686_LDO_LOW_UVSTEP 25000
#define MAX77686_BUCK_MINUV 750000
#define MAX77686_BUCK_UVSTEP 50000
+#define MAX77686_BUCK_ENABLE_TIME 40 /* us */
+#define MAX77686_DVS_ENABLE_TIME 22 /* us */
#define MAX77686_RAMP_DELAY 100000 /* uV/us */
#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */
#define MAX77686_DVS_MINUV 600000
@@ -422,6 +424,7 @@
.min_uV = MAX77686_BUCK_MINUV, \
.uV_step = MAX77686_BUCK_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
+ .enable_time = MAX77686_BUCK_ENABLE_TIME, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \
.vsel_mask = MAX77686_VSEL_MASK, \
@@ -439,6 +442,7 @@
.min_uV = MAX77686_BUCK_MINUV, \
.uV_step = MAX77686_BUCK_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
+ .enable_time = MAX77686_BUCK_ENABLE_TIME, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK1OUT, \
.vsel_mask = MAX77686_VSEL_MASK, \
@@ -456,6 +460,7 @@
.min_uV = MAX77686_DVS_MINUV, \
.uV_step = MAX77686_DVS_UVSTEP, \
.ramp_delay = MAX77686_DVS_RAMP_DELAY, \
+ .enable_time = MAX77686_DVS_ENABLE_TIME, \
.n_voltages = MAX77686_DVS_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \
.vsel_mask = MAX77686_DVS_VSEL_MASK, \
@@ -553,17 +558,7 @@
.id_table = max77686_pmic_id,
};
-static int __init max77686_pmic_init(void)
-{
- return platform_driver_register(&max77686_pmic_driver);
-}
-subsys_initcall(max77686_pmic_init);
-
-static void __exit max77686_pmic_cleanup(void)
-{
- platform_driver_unregister(&max77686_pmic_driver);
-}
-module_exit(max77686_pmic_cleanup);
+module_platform_driver(max77686_pmic_driver);
MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver");
MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693-regulator.c
similarity index 100%
rename from drivers/regulator/max77693.c
rename to drivers/regulator/max77693-regulator.c
diff --git a/drivers/regulator/max77802-regulator.c b/drivers/regulator/max77802-regulator.c
index c07ee13..1d35393 100644
--- a/drivers/regulator/max77802-regulator.c
+++ b/drivers/regulator/max77802-regulator.c
@@ -5,7 +5,7 @@
* Simon Glass <sjg@chromium.org>
*
* Copyright (C) 2012 Samsung Electronics
- * Chiwoong Byun <woong.byun@smasung.com>
+ * Chiwoong Byun <woong.byun@samsung.com>
* Jonghwa Lee <jonghwa3.lee@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 5b75b7c..08d2f13 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -38,6 +38,9 @@
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
+#include <linux/thermal.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
/* Register definitions */
#define MAX8973_VOUT 0x0
@@ -74,6 +77,7 @@
#define MAX8973_WDTMR_ENABLE BIT(6)
#define MAX8973_DISCH_ENBABLE BIT(5)
#define MAX8973_FT_ENABLE BIT(4)
+#define MAX77621_T_JUNCTION_120 BIT(7)
#define MAX8973_CKKADV_TRIP_MASK 0xC
#define MAX8973_CKKADV_TRIP_DISABLE 0xC
@@ -93,6 +97,12 @@
#define MAX8973_VOLATGE_STEP 6250
#define MAX8973_BUCK_N_VOLTAGE 0x80
+#define MAX77621_CHIPID_TJINT_S BIT(0)
+
+#define MAX77621_NORMAL_OPERATING_TEMP 100000
+#define MAX77621_TJINT_WARNING_TEMP_120 120000
+#define MAX77621_TJINT_WARNING_TEMP_140 140000
+
enum device_id {
MAX8973,
MAX77621
@@ -112,6 +122,9 @@
int curr_gpio_val;
struct regulator_ops ops;
enum device_id id;
+ int junction_temp_warning;
+ int irq;
+ struct thermal_zone_device *tz_device;
};
/*
@@ -391,6 +404,10 @@
if (pdata->control_flags & MAX8973_CONTROL_FREQ_SHIFT_9PER_ENABLE)
control1 |= MAX8973_FREQSHIFT_9PER;
+ if ((pdata->junction_temp_warning == MAX77621_TJINT_WARNING_TEMP_120) &&
+ (max->id == MAX77621))
+ control2 |= MAX77621_T_JUNCTION_120;
+
if (!(pdata->control_flags & MAX8973_CONTROL_PULL_DOWN_ENABLE))
control2 |= MAX8973_DISCH_ENBABLE;
@@ -457,6 +474,79 @@
return ret;
}
+static int max8973_thermal_read_temp(void *data, int *temp)
+{
+ struct max8973_chip *mchip = data;
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(mchip->regmap, MAX8973_CHIPID1, &val);
+ if (ret < 0) {
+ dev_err(mchip->dev, "Failed to read register CHIPID1, %d", ret);
+ return ret;
+ }
+
+ /* +1 degC to trigger cool devive */
+ if (val & MAX77621_CHIPID_TJINT_S)
+ *temp = mchip->junction_temp_warning + 1000;
+ else
+ *temp = MAX77621_NORMAL_OPERATING_TEMP;
+
+ return 0;
+}
+
+static irqreturn_t max8973_thermal_irq(int irq, void *data)
+{
+ struct max8973_chip *mchip = data;
+
+ thermal_zone_device_update(mchip->tz_device);
+
+ return IRQ_HANDLED;
+}
+
+static const struct thermal_zone_of_device_ops max77621_tz_ops = {
+ .get_temp = max8973_thermal_read_temp,
+};
+
+static int max8973_thermal_init(struct max8973_chip *mchip)
+{
+ struct thermal_zone_device *tzd;
+ struct irq_data *irq_data;
+ unsigned long irq_flags = 0;
+ int ret;
+
+ if (mchip->id != MAX77621)
+ return 0;
+
+ tzd = devm_thermal_zone_of_sensor_register(mchip->dev, 0, mchip,
+ &max77621_tz_ops);
+ if (IS_ERR(tzd)) {
+ ret = PTR_ERR(tzd);
+ dev_err(mchip->dev, "Failed to register thermal sensor: %d\n",
+ ret);
+ return ret;
+ }
+
+ if (mchip->irq <= 0)
+ return 0;
+
+ irq_data = irq_get_irq_data(mchip->irq);
+ if (irq_data)
+ irq_flags = irqd_get_trigger_type(irq_data);
+
+ ret = devm_request_threaded_irq(mchip->dev, mchip->irq, NULL,
+ max8973_thermal_irq,
+ IRQF_ONESHOT | IRQF_SHARED | irq_flags,
+ dev_name(mchip->dev), mchip);
+ if (ret < 0) {
+ dev_err(mchip->dev, "Failed to request irq %d, %d\n",
+ mchip->irq, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static const struct regmap_config max8973_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -521,6 +611,11 @@
pdata->control_flags |= MAX8973_CONTROL_CLKADV_TRIP_DISABLED;
}
+ pdata->junction_temp_warning = MAX77621_TJINT_WARNING_TEMP_140;
+ ret = of_property_read_u32(np, "junction-warn-millicelsius", &pval);
+ if (!ret && (pval <= MAX77621_TJINT_WARNING_TEMP_120))
+ pdata->junction_temp_warning = MAX77621_TJINT_WARNING_TEMP_120;
+
return pdata;
}
@@ -608,6 +703,7 @@
max->enable_external_control = pdata->enable_ext_control;
max->curr_gpio_val = pdata->dvs_def_state;
max->curr_vout_reg = MAX8973_VOUT + pdata->dvs_def_state;
+ max->junction_temp_warning = pdata->junction_temp_warning;
if (gpio_is_valid(max->enable_gpio))
max->enable_external_control = true;
@@ -718,6 +814,7 @@
return ret;
}
+ max8973_thermal_init(max);
return 0;
}
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997-regulator.c
similarity index 99%
rename from drivers/regulator/max8997.c
rename to drivers/regulator/max8997-regulator.c
index ea0196d..efabc0e 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997-regulator.c
@@ -2,7 +2,7 @@
* max8997.c - Regulator driver for the Maxim 8997/8966
*
* Copyright (C) 2011 Samsung Electronics
- * MyungJoo Ham <myungjoo.ham@smasung.com>
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
*
* 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
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 6efc7ee..f11d41d 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -944,6 +944,8 @@
if (id == PALMAS_REG_LDO9) {
desc->ops = &palmas_ops_ldo9;
desc->bypass_reg = desc->enable_reg;
+ desc->bypass_val_on =
+ PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
desc->bypass_mask =
PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
}
@@ -1055,6 +1057,8 @@
id == TPS65917_REG_LDO2) {
desc->ops = &tps65917_ops_ldo_1_2;
desc->bypass_reg = desc->enable_reg;
+ desc->bypass_val_on =
+ TPS65917_LDO1_CTRL_BYPASS_EN;
desc->bypass_mask =
TPS65917_LDO1_CTRL_BYPASS_EN;
}
@@ -1206,6 +1210,7 @@
desc->enable_mask = SMPS10_BOOST_EN;
desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
+ desc->bypass_val_on = SMPS10_BYPASS_EN;
desc->bypass_mask = SMPS10_BYPASS_EN;
desc->min_uV = 3750000;
desc->uV_step = 1250000;
@@ -1462,10 +1467,10 @@
.ldo_register = tps65917_ldo_registration,
};
-static void palmas_dt_to_pdata(struct device *dev,
- struct device_node *node,
- struct palmas_pmic_platform_data *pdata,
- struct palmas_pmic_driver_data *ddata)
+static int palmas_dt_to_pdata(struct device *dev,
+ struct device_node *node,
+ struct palmas_pmic_platform_data *pdata,
+ struct palmas_pmic_driver_data *ddata)
{
struct device_node *regulators;
u32 prop;
@@ -1474,7 +1479,7 @@
regulators = of_get_child_by_name(node, "regulators");
if (!regulators) {
dev_info(dev, "regulator node not found\n");
- return;
+ return 0;
}
ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
@@ -1482,25 +1487,29 @@
of_node_put(regulators);
if (ret < 0) {
dev_err(dev, "Error parsing regulator init data: %d\n", ret);
- return;
+ return 0;
}
for (idx = 0; idx < ddata->max_reg; idx++) {
- if (!ddata->palmas_matches[idx].init_data ||
- !ddata->palmas_matches[idx].of_node)
+ static struct of_regulator_match *match;
+ struct palmas_reg_init *rinit;
+ struct device_node *np;
+
+ match = &ddata->palmas_matches[idx];
+ np = match->of_node;
+
+ if (!match->init_data || !np)
continue;
- pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data;
+ rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
+ if (!rinit)
+ return -ENOMEM;
- pdata->reg_init[idx] = devm_kzalloc(dev,
- sizeof(struct palmas_reg_init), GFP_KERNEL);
+ pdata->reg_data[idx] = match->init_data;
+ pdata->reg_init[idx] = rinit;
- pdata->reg_init[idx]->warm_reset =
- of_property_read_bool(ddata->palmas_matches[idx].of_node,
- "ti,warm-reset");
-
- ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
- "ti,roof-floor", &prop);
+ rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
+ ret = of_property_read_u32(np, "ti,roof-floor", &prop);
/* EINVAL: Property not found */
if (ret != -EINVAL) {
int econtrol;
@@ -1522,31 +1531,29 @@
WARN_ON(1);
dev_warn(dev,
"%s: Invalid roof-floor option: %u\n",
- palmas_matches[idx].name, prop);
+ match->name, prop);
break;
}
}
- pdata->reg_init[idx]->roof_floor = econtrol;
+ rinit->roof_floor = econtrol;
}
- ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
- "ti,mode-sleep", &prop);
+ ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
if (!ret)
- pdata->reg_init[idx]->mode_sleep = prop;
+ rinit->mode_sleep = prop;
- ret = of_property_read_bool(ddata->palmas_matches[idx].of_node,
- "ti,smps-range");
+ ret = of_property_read_bool(np, "ti,smps-range");
if (ret)
- pdata->reg_init[idx]->vsel =
- PALMAS_SMPS12_VOLTAGE_RANGE;
+ rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
if (idx == PALMAS_REG_LDO8)
pdata->enable_ldo8_tracking = of_property_read_bool(
- ddata->palmas_matches[idx].of_node,
- "ti,enable-ldo8-tracking");
+ np, "ti,enable-ldo8-tracking");
}
pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
+
+ return 0;
}
static const struct of_device_id of_palmas_match_tbl[] = {
@@ -1628,7 +1635,9 @@
platform_set_drvdata(pdev, pmic);
pmic->palmas->pmic_ddata = driver_data;
- palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
+ ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
+ if (ret)
+ return ret;
ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®);
if (ret)
diff --git a/drivers/regulator/pv88080-regulator.c b/drivers/regulator/pv88080-regulator.c
new file mode 100644
index 0000000..d710756
--- /dev/null
+++ b/drivers/regulator/pv88080-regulator.c
@@ -0,0 +1,419 @@
+/*
+ * pv88080-regulator.c - Regulator device driver for PV88080
+ * Copyright (C) 2016 Powerventure Semiconductor 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.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+#include "pv88080-regulator.h"
+
+#define PV88080_MAX_REGULATORS 3
+
+/* PV88080 REGULATOR IDs */
+enum {
+ /* BUCKs */
+ PV88080_ID_BUCK1,
+ PV88080_ID_BUCK2,
+ PV88080_ID_BUCK3,
+};
+
+struct pv88080_regulator {
+ struct regulator_desc desc;
+ /* Current limiting */
+ unsigned int n_current_limits;
+ const int *current_limits;
+ unsigned int limit_mask;
+ unsigned int conf;
+ unsigned int conf2;
+ unsigned int conf5;
+};
+
+struct pv88080 {
+ struct device *dev;
+ struct regmap *regmap;
+ struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
+};
+
+struct pv88080_buck_voltage {
+ int min_uV;
+ int max_uV;
+ int uV_step;
+};
+
+static const struct regmap_config pv88080_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
+ * Entry indexes corresponds to register values.
+ */
+
+static const int pv88080_buck1_limits[] = {
+ 3230000, 5130000, 6960000, 8790000
+};
+
+static const int pv88080_buck23_limits[] = {
+ 1496000, 2393000, 3291000, 4189000
+};
+
+static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
+ {
+ .min_uV = 600000,
+ .max_uV = 1393750,
+ .uV_step = 6250,
+ },
+ {
+ .min_uV = 1400000,
+ .max_uV = 2193750,
+ .uV_step = 6250,
+ },
+};
+
+static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
+{
+ struct pv88080_regulator *info = rdev_get_drvdata(rdev);
+ unsigned int data;
+ int ret, mode = 0;
+
+ ret = regmap_read(rdev->regmap, info->conf, &data);
+ if (ret < 0)
+ return ret;
+
+ switch (data & PV88080_BUCK1_MODE_MASK) {
+ case PV88080_BUCK_MODE_SYNC:
+ mode = REGULATOR_MODE_FAST;
+ break;
+ case PV88080_BUCK_MODE_AUTO:
+ mode = REGULATOR_MODE_NORMAL;
+ break;
+ case PV88080_BUCK_MODE_SLEEP:
+ mode = REGULATOR_MODE_STANDBY;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return mode;
+}
+
+static int pv88080_buck_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct pv88080_regulator *info = rdev_get_drvdata(rdev);
+ int val = 0;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ val = PV88080_BUCK_MODE_SYNC;
+ break;
+ case REGULATOR_MODE_NORMAL:
+ val = PV88080_BUCK_MODE_AUTO;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val = PV88080_BUCK_MODE_SLEEP;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(rdev->regmap, info->conf,
+ PV88080_BUCK1_MODE_MASK, val);
+}
+
+static int pv88080_set_current_limit(struct regulator_dev *rdev, int min,
+ int max)
+{
+ struct pv88080_regulator *info = rdev_get_drvdata(rdev);
+ int i;
+
+ /* search for closest to maximum */
+ for (i = info->n_current_limits; i >= 0; i--) {
+ if (min <= info->current_limits[i]
+ && max >= info->current_limits[i]) {
+ return regmap_update_bits(rdev->regmap,
+ info->conf,
+ info->limit_mask,
+ i << PV88080_BUCK1_ILIM_SHIFT);
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int pv88080_get_current_limit(struct regulator_dev *rdev)
+{
+ struct pv88080_regulator *info = rdev_get_drvdata(rdev);
+ unsigned int data;
+ int ret;
+
+ ret = regmap_read(rdev->regmap, info->conf, &data);
+ if (ret < 0)
+ return ret;
+
+ data = (data & info->limit_mask) >> PV88080_BUCK1_ILIM_SHIFT;
+ return info->current_limits[data];
+}
+
+static struct regulator_ops pv88080_buck_ops = {
+ .get_mode = pv88080_buck_get_mode,
+ .set_mode = pv88080_buck_set_mode,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_current_limit = pv88080_set_current_limit,
+ .get_current_limit = pv88080_get_current_limit,
+};
+
+#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
+{\
+ .desc = {\
+ .id = chip##_ID_##regl_name,\
+ .name = __stringify(chip##_##regl_name),\
+ .of_match = of_match_ptr(#regl_name),\
+ .regulators_node = of_match_ptr("regulators"),\
+ .type = REGULATOR_VOLTAGE,\
+ .owner = THIS_MODULE,\
+ .ops = &pv88080_buck_ops,\
+ .min_uV = min, \
+ .uV_step = step, \
+ .n_voltages = ((max) - (min))/(step) + 1, \
+ .enable_reg = PV88080_REG_##regl_name##_CONF0, \
+ .enable_mask = PV88080_##regl_name##_EN, \
+ .vsel_reg = PV88080_REG_##regl_name##_CONF0, \
+ .vsel_mask = PV88080_V##regl_name##_MASK, \
+ },\
+ .current_limits = limits_array, \
+ .n_current_limits = ARRAY_SIZE(limits_array), \
+ .limit_mask = PV88080_##regl_name##_ILIM_MASK, \
+ .conf = PV88080_REG_##regl_name##_CONF1, \
+ .conf2 = PV88080_REG_##regl_name##_CONF2, \
+ .conf5 = PV88080_REG_##regl_name##_CONF5, \
+}
+
+static struct pv88080_regulator pv88080_regulator_info[] = {
+ PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
+ pv88080_buck1_limits),
+ PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
+ pv88080_buck23_limits),
+ PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
+ pv88080_buck23_limits),
+};
+
+static irqreturn_t pv88080_irq_handler(int irq, void *data)
+{
+ struct pv88080 *chip = data;
+ int i, reg_val, err, ret = IRQ_NONE;
+
+ err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, ®_val);
+ if (err < 0)
+ goto error_i2c;
+
+ if (reg_val & PV88080_E_VDD_FLT) {
+ for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
+ if (chip->rdev[i] != NULL) {
+ regulator_notifier_call_chain(chip->rdev[i],
+ REGULATOR_EVENT_UNDER_VOLTAGE,
+ NULL);
+ }
+ }
+
+ err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
+ PV88080_E_VDD_FLT);
+ if (err < 0)
+ goto error_i2c;
+
+ ret = IRQ_HANDLED;
+ }
+
+ if (reg_val & PV88080_E_OVER_TEMP) {
+ for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
+ if (chip->rdev[i] != NULL) {
+ regulator_notifier_call_chain(chip->rdev[i],
+ REGULATOR_EVENT_OVER_TEMP,
+ NULL);
+ }
+ }
+
+ err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
+ PV88080_E_OVER_TEMP);
+ if (err < 0)
+ goto error_i2c;
+
+ ret = IRQ_HANDLED;
+ }
+
+ return ret;
+
+error_i2c:
+ dev_err(chip->dev, "I2C error : %d\n", err);
+ return IRQ_NONE;
+}
+
+/*
+ * I2C driver interface functions
+ */
+static int pv88080_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
+ struct pv88080 *chip;
+ struct regulator_config config = { };
+ int i, error, ret;
+ unsigned int conf2, conf5;
+
+ chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->dev = &i2c->dev;
+ chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ error = PTR_ERR(chip->regmap);
+ dev_err(chip->dev, "Failed to allocate register map: %d\n",
+ error);
+ return error;
+ }
+
+ i2c_set_clientdata(i2c, chip);
+
+ if (i2c->irq != 0) {
+ ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
+ if (ret < 0) {
+ dev_err(chip->dev,
+ "Failed to mask A reg: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
+ if (ret < 0) {
+ dev_err(chip->dev,
+ "Failed to mask B reg: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
+ if (ret < 0) {
+ dev_err(chip->dev,
+ "Failed to mask C reg: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
+ pv88080_irq_handler,
+ IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+ "pv88080", chip);
+ if (ret != 0) {
+ dev_err(chip->dev, "Failed to request IRQ: %d\n",
+ i2c->irq);
+ return ret;
+ }
+
+ ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
+ PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0);
+ if (ret < 0) {
+ dev_err(chip->dev,
+ "Failed to update mask reg: %d\n", ret);
+ return ret;
+ }
+
+ } else {
+ dev_warn(chip->dev, "No IRQ configured\n");
+ }
+
+ config.dev = chip->dev;
+ config.regmap = chip->regmap;
+
+ for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
+ if (init_data)
+ config.init_data = &init_data[i];
+
+ ret = regmap_read(chip->regmap,
+ pv88080_regulator_info[i].conf2, &conf2);
+ if (ret < 0)
+ return ret;
+
+ conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
+ PV88080_BUCK_VDAC_RANGE_MASK);
+
+ ret = regmap_read(chip->regmap,
+ pv88080_regulator_info[i].conf5, &conf5);
+ if (ret < 0)
+ return ret;
+
+ conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
+ PV88080_BUCK_VRANGE_GAIN_MASK);
+
+ pv88080_regulator_info[i].desc.min_uV =
+ pv88080_buck_vol[conf2].min_uV * (conf5+1);
+ pv88080_regulator_info[i].desc.uV_step =
+ pv88080_buck_vol[conf2].uV_step * (conf5+1);
+ pv88080_regulator_info[i].desc.n_voltages =
+ ((pv88080_buck_vol[conf2].max_uV * (conf5+1))
+ - (pv88080_regulator_info[i].desc.min_uV))
+ /(pv88080_regulator_info[i].desc.uV_step) + 1;
+
+ config.driver_data = (void *)&pv88080_regulator_info[i];
+ chip->rdev[i] = devm_regulator_register(chip->dev,
+ &pv88080_regulator_info[i].desc, &config);
+ if (IS_ERR(chip->rdev[i])) {
+ dev_err(chip->dev,
+ "Failed to register PV88080 regulator\n");
+ return PTR_ERR(chip->rdev[i]);
+ }
+ }
+
+ return 0;
+}
+
+static const struct i2c_device_id pv88080_i2c_id[] = {
+ {"pv88080", 0},
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id pv88080_dt_ids[] = {
+ { .compatible = "pvs,pv88080", .data = &pv88080_i2c_id[0] },
+ {},
+};
+MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
+#endif
+
+static struct i2c_driver pv88080_regulator_driver = {
+ .driver = {
+ .name = "pv88080",
+ .of_match_table = of_match_ptr(pv88080_dt_ids),
+ },
+ .probe = pv88080_i2c_probe,
+ .id_table = pv88080_i2c_id,
+};
+
+module_i2c_driver(pv88080_regulator_driver);
+
+MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
+MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/pv88080-regulator.h b/drivers/regulator/pv88080-regulator.h
new file mode 100644
index 0000000..5e9afde
--- /dev/null
+++ b/drivers/regulator/pv88080-regulator.h
@@ -0,0 +1,92 @@
+/*
+ * pv88080-regulator.h - Regulator definitions for PV88080
+ * Copyright (C) 2016 Powerventure Semiconductor 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.
+ */
+
+#ifndef __PV88080_REGISTERS_H__
+#define __PV88080_REGISTERS_H__
+
+/* System Control and Event Registers */
+#define PV88080_REG_EVENT_A 0x04
+#define PV88080_REG_MASK_A 0x09
+#define PV88080_REG_MASK_B 0x0a
+#define PV88080_REG_MASK_C 0x0b
+
+/* Regulator Registers */
+#define PV88080_REG_BUCK1_CONF0 0x27
+#define PV88080_REG_BUCK1_CONF1 0x28
+#define PV88080_REG_BUCK1_CONF2 0x59
+#define PV88080_REG_BUCK1_CONF5 0x5c
+#define PV88080_REG_BUCK2_CONF0 0x29
+#define PV88080_REG_BUCK2_CONF1 0x2a
+#define PV88080_REG_BUCK2_CONF2 0x61
+#define PV88080_REG_BUCK2_CONF5 0x64
+#define PV88080_REG_BUCK3_CONF0 0x2b
+#define PV88080_REG_BUCK3_CONF1 0x2c
+#define PV88080_REG_BUCK3_CONF2 0x69
+#define PV88080_REG_BUCK3_CONF5 0x6c
+
+/* PV88080_REG_EVENT_A (addr=0x04) */
+#define PV88080_E_VDD_FLT 0x01
+#define PV88080_E_OVER_TEMP 0x02
+
+/* PV88080_REG_MASK_A (addr=0x09) */
+#define PV88080_M_VDD_FLT 0x01
+#define PV88080_M_OVER_TEMP 0x02
+
+/* PV88080_REG_BUCK1_CONF0 (addr=0x27) */
+#define PV88080_BUCK1_EN 0x80
+#define PV88080_VBUCK1_MASK 0x7F
+/* PV88080_REG_BUCK2_CONF0 (addr=0x29) */
+#define PV88080_BUCK2_EN 0x80
+#define PV88080_VBUCK2_MASK 0x7F
+/* PV88080_REG_BUCK3_CONF0 (addr=0x2b) */
+#define PV88080_BUCK3_EN 0x80
+#define PV88080_VBUCK3_MASK 0x7F
+
+/* PV88080_REG_BUCK1_CONF1 (addr=0x28) */
+#define PV88080_BUCK1_ILIM_SHIFT 2
+#define PV88080_BUCK1_ILIM_MASK 0x0C
+#define PV88080_BUCK1_MODE_MASK 0x03
+
+/* PV88080_REG_BUCK2_CONF1 (addr=0x2a) */
+#define PV88080_BUCK2_ILIM_SHIFT 2
+#define PV88080_BUCK2_ILIM_MASK 0x0C
+#define PV88080_BUCK2_MODE_MASK 0x03
+
+/* PV88080_REG_BUCK3_CONF1 (addr=0x2c) */
+#define PV88080_BUCK3_ILIM_SHIFT 2
+#define PV88080_BUCK3_ILIM_MASK 0x0C
+#define PV88080_BUCK3_MODE_MASK 0x03
+
+#define PV88080_BUCK_MODE_SLEEP 0x00
+#define PV88080_BUCK_MODE_AUTO 0x01
+#define PV88080_BUCK_MODE_SYNC 0x02
+
+/* PV88080_REG_BUCK2_CONF2 (addr=0x61) */
+/* PV88080_REG_BUCK3_CONF2 (addr=0x69) */
+#define PV88080_BUCK_VDAC_RANGE_SHIFT 7
+#define PV88080_BUCK_VDAC_RANGE_MASK 0x01
+
+#define PV88080_BUCK_VDAC_RANGE_1 0x00
+#define PV88080_BUCK_VDAC_RANGE_2 0x01
+
+/* PV88080_REG_BUCK2_CONF5 (addr=0x64) */
+/* PV88080_REG_BUCK3_CONF5 (addr=0x6c) */
+#define PV88080_BUCK_VRANGE_GAIN_SHIFT 0
+#define PV88080_BUCK_VRANGE_GAIN_MASK 0x01
+
+#define PV88080_BUCK_VRANGE_GAIN_1 0x00
+#define PV88080_BUCK_VRANGE_GAIN_2 0x01
+
+#endif /* __PV88080_REGISTERS_H__ */
diff --git a/include/linux/regulator/max8973-regulator.h b/include/linux/regulator/max8973-regulator.h
index f6a8a16..2fcb998 100644
--- a/include/linux/regulator/max8973-regulator.h
+++ b/include/linux/regulator/max8973-regulator.h
@@ -54,6 +54,10 @@
* @reg_init_data: The regulator init data.
* @control_flags: Control flags which are ORed value of above flags to
* configure device.
+ * @junction_temp_warning: Junction temp in millicelcius on which warning need
+ * to be set. Thermal functionality is only supported on
+ * MAX77621. The threshold warning supported by MAX77621
+ * are 120C and 140C.
* @enable_ext_control: Enable the voltage enable/disable through external
* control signal from EN input pin. If it is false then
* voltage output will be enabled/disabled through EN bit of
@@ -67,6 +71,7 @@
struct max8973_regulator_platform_data {
struct regulator_init_data *reg_init_data;
unsigned long control_flags;
+ unsigned long junction_temp_warning;
bool enable_ext_control;
int enable_gpio;
int dvs_gpio;
