* [PATCH v8 0/2] Add new MFD driver for MAX77843
@ 2015-03-31 13:23 Beomho Seo
2015-03-31 13:23 ` [PATCH v8 1/2] power: max77843_charger: Add Max77843 charger device driver Beomho Seo
2015-03-31 13:23 ` [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843 Beomho Seo
0 siblings, 2 replies; 4+ messages in thread
From: Beomho Seo @ 2015-03-31 13:23 UTC (permalink / raw)
To: lee.jones, sre, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak
Cc: linux-kernel, linux-pm, devicetree, cw00.choi, sangbae90.lee,
inki.dae, Beomho Seo
This patch series adds MAX77843(Multi Function Device) driver.
The MAX77843 includes MUIC(Micro USB Interface Controller), Li+ Charger
with Fuel Gauge, 2 safeout LDOs for USB device and haptic controller using PWM.
It is interfaced to host controller using I2C.
Changes in v8:
Charger:
- Add "Reviewed-by: Sebastian Reichel" He reviewed this patch on Sun 8 Mar 2015.
Fuelgauge:
- Remove patch.
Doc:
- Remove about fuelgague.
Changes in v7:
MFD Core
- Fix indentation
- Remove file name, MODULE information
POWER
- Fix typos
Changes in v6:
HAPTIC
- fixed a situation where holding a Mutex return.
Changes in v5:
MFD Core
- Use bracket in complex define.
- Delete unnecessary letter '++'
Charger
- fix Kconfig merge conflict with Kernel version4.0
Changes in v4:
MFD Core
- Fix indentation
- Add haptic register define in header
HAPTIC
- Add haptic driver
Changes in v3:
MFD Core
- Fix wrong description and indentation in header.
- Remove unnecessary variable.
Regulator
- Use ARRAY_SIZE() instead of define.
Changes in v2:
MFD Core
- Fix charger regmap handle and typo.
MUIC
- Cleanup enum list.
- Set path before send excon event.
- Fix variable names and typos for readability.
Charger
- Remove unnecessary header.
- Chnage error message more readable.
- Remove unnecessary lines.
Fuelgauge
- Fix regmap_config and use regmap_read.
- Add i2c_unregister_device function on *_remove function.
- Fix typo in Kconfig.
Doc
- Remove unnecessary lines.
- Add example of charger regulator.
Beomho Seo (1):
power: max77843_charger: Add Max77843 charger device driver
Jaewon Kim (1):
Documentation: Add device tree bindings document for max77843
Documentation/devicetree/bindings/mfd/max77843.txt | 100 ++++
drivers/power/Kconfig | 7 +
drivers/power/Makefile | 1 +
drivers/power/max77843_charger.c | 508 ++++++++++++++++++++
4 files changed, 616 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/max77843.txt
create mode 100644 drivers/power/max77843_charger.c
--
1.7.9.5
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v8 1/2] power: max77843_charger: Add Max77843 charger device driver
2015-03-31 13:23 [PATCH v8 0/2] Add new MFD driver for MAX77843 Beomho Seo
@ 2015-03-31 13:23 ` Beomho Seo
2015-03-31 13:23 ` [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843 Beomho Seo
1 sibling, 0 replies; 4+ messages in thread
From: Beomho Seo @ 2015-03-31 13:23 UTC (permalink / raw)
To: lee.jones, sre, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak
Cc: linux-kernel, linux-pm, devicetree, cw00.choi, sangbae90.lee,
inki.dae, Beomho Seo
This patch adds device driver of max77843 charger. This driver provide
initialize each charging mode(e.g. fast charge, top-off mode and constant
charging mode so on.). Additionally, control charging paramters to use
i2c interface.
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
---
drivers/power/Kconfig | 7 +
drivers/power/Makefile | 1 +
drivers/power/max77843_charger.c | 508 ++++++++++++++++++++++++++++++++++++++
3 files changed, 516 insertions(+)
create mode 100644 drivers/power/max77843_charger.c
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 27b751b..994793d 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -337,6 +337,13 @@ config CHARGER_MAX77693
help
Say Y to enable support for the Maxim MAX77693 battery charger.
+config CHARGER_MAX77843
+ tristate "Maxim MAX77843 battery charger driver"
+ depends on MFD_MAX77843
+ help
+ Say Y to enable support for the battery charger control sysfs and
+ platform data of MAX77843
+
config CHARGER_MAX8997
tristate "Maxim MAX8997/MAX8966 PMIC battery charger driver"
depends on MFD_MAX8997 && REGULATOR_MAX8997
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 36f9e0d..ed69cea 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_CHARGER_GPIO) += gpio-charger.o
obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o
obj-$(CONFIG_CHARGER_MAX14577) += max14577_charger.o
obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o
+obj-$(CONFIG_CHARGER_MAX77843) += max77843_charger.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o
diff --git a/drivers/power/max77843_charger.c b/drivers/power/max77843_charger.c
new file mode 100644
index 0000000..d4cce17
--- /dev/null
+++ b/drivers/power/max77843_charger.c
@@ -0,0 +1,508 @@
+/*
+ * Charger driver for Maxim MAX77843
+ *
+ * Copyright (C) 2015 Samsung Electronics, Co., Ltd.
+ * Author: Beomho Seo <beomho.seo@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/max77843-private.h>
+
+struct max77843_charger_info {
+ u32 fast_charge_uamp;
+ u32 top_off_uamp;
+ u32 input_uamp_limit;
+};
+
+struct max77843_charger {
+ struct device *dev;
+ struct max77843 *max77843;
+ struct i2c_client *client;
+ struct regmap *regmap;
+ struct power_supply psy;
+
+ struct max77843_charger_info *info;
+};
+
+static int max77843_charger_get_max_current(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = 0;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_CNFG_09, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read max current register: %d\n", ret);
+ return ret;
+ }
+
+ if (reg_data <= 0x03) {
+ val = MAX77843_CHG_INPUT_CURRENT_LIMIT_MIN;
+ } else if (reg_data >= 0x78) {
+ val = MAX77843_CHG_INPUT_CURRENT_LIMIT_MAX;
+ } else {
+ val = reg_data / 3;
+ if (reg_data % 3 == 0)
+ val *= 100000;
+ else if (reg_data % 3 == 1)
+ val = val * 100000 + 33000;
+ else
+ val = val * 100000 + 67000;
+ }
+
+ return val;
+}
+
+static int max77843_charger_get_now_current(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = 0;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_CNFG_02, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read charge current register: %d\n", ret);
+ return ret;
+ }
+
+ reg_data &= MAX77843_CHG_FAST_CHG_CURRENT_MASK;
+
+ if (reg_data <= 0x02)
+ val = MAX77843_CHG_FAST_CHG_CURRENT_MIN;
+ else if (reg_data >= 0x3f)
+ val = MAX77843_CHG_FAST_CHG_CURRENT_MAX;
+ else
+ val = reg_data * MAX77843_CHG_FAST_CHG_CURRENT_STEP;
+
+ return val;
+}
+
+static int max77843_charger_get_online(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = 0;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_INT_OK, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read charger status: %d\n", ret);
+ return ret;
+ }
+
+ if (reg_data & MAX77843_CHG_CHGIN_OK)
+ val = true;
+ else
+ val = false;
+
+ return val;
+}
+
+static int max77843_charger_get_present(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = 0;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_DTLS_00, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read battery present: %d\n", ret);
+ return ret;
+ }
+
+ if (reg_data & MAX77843_CHG_BAT_DTLS)
+ val = false;
+ else
+ val = true;
+
+ return val;
+}
+
+static int max77843_charger_get_health(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = POWER_SUPPLY_HEALTH_UNKNOWN;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_DTLS_01, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read battery health: %d\n", ret);
+ return ret;
+ }
+
+ reg_data &= MAX77843_CHG_BAT_DTLS_MASK;
+
+ switch (reg_data) {
+ case MAX77843_CHG_NO_BAT:
+ val = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+ break;
+ case MAX77843_CHG_LOW_VOLT_BAT:
+ case MAX77843_CHG_OK_BAT:
+ case MAX77843_CHG_OK_LOW_VOLT_BAT:
+ val = POWER_SUPPLY_HEALTH_GOOD;
+ break;
+ case MAX77843_CHG_LONG_BAT_TIME:
+ val = POWER_SUPPLY_HEALTH_DEAD;
+ break;
+ case MAX77843_CHG_OVER_VOLT_BAT:
+ case MAX77843_CHG_OVER_CURRENT_BAT:
+ val = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ break;
+ default:
+ val = POWER_SUPPLY_HEALTH_UNKNOWN;
+ break;
+ }
+
+ return val;
+}
+
+static int max77843_charger_get_status(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret, val = 0;
+ unsigned int reg_data;
+
+ ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_DTLS_01, ®_data);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to read charger status: %d\n", ret);
+ return ret;
+ }
+
+ reg_data &= MAX77843_CHG_DTLS_MASK;
+
+ switch (reg_data) {
+ case MAX77843_CHG_PQ_MODE:
+ case MAX77843_CHG_CC_MODE:
+ case MAX77843_CHG_CV_MODE:
+ val = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case MAX77843_CHG_TO_MODE:
+ case MAX77843_CHG_DO_MODE:
+ val = POWER_SUPPLY_STATUS_FULL;
+ break;
+ case MAX77843_CHG_HT_MODE:
+ case MAX77843_CHG_TF_MODE:
+ case MAX77843_CHG_TS_MODE:
+ val = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case MAX77843_CHG_OFF_MODE:
+ val = POWER_SUPPLY_STATUS_DISCHARGING;
+ break;
+ default:
+ val = POWER_SUPPLY_STATUS_UNKNOWN;
+ break;
+ }
+
+ return val;
+}
+
+static const char *model_name = "MAX77843";
+static const char *manufacturer = "Maxim Integrated";
+
+static int max77843_charger_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct max77843_charger *charger = container_of(psy,
+ struct max77843_charger, psy);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ val->intval = max77843_charger_get_status(charger);
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ val->intval = max77843_charger_get_health(charger);
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = max77843_charger_get_present(charger);
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = max77843_charger_get_online(charger);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = max77843_charger_get_now_current(charger);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ val->intval = max77843_charger_get_max_current(charger);
+ break;
+ case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = model_name;
+ break;
+ case POWER_SUPPLY_PROP_MANUFACTURER:
+ val->strval = manufacturer;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static enum power_supply_property max77843_charger_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static int max77843_charger_init_current_limit(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ struct max77843_charger_info *info = charger->info;
+ unsigned int input_uamp_limit = info->input_uamp_limit;
+ int ret;
+ unsigned int reg_data, val;
+
+ ret = regmap_update_bits(regmap, MAX77843_CHG_REG_CHG_CNFG_02,
+ MAX77843_CHG_OTG_ILIMIT_MASK,
+ MAX77843_CHG_OTG_ILIMIT_900);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to write OTG current limit: %d\n", ret);
+ return ret;
+ }
+
+ if (input_uamp_limit == MAX77843_CHG_INPUT_CURRENT_LIMIT_MIN) {
+ reg_data = 0x03;
+ } else if (input_uamp_limit == MAX77843_CHG_INPUT_CURRENT_LIMIT_MAX) {
+ reg_data = 0x78;
+ } else {
+ if (input_uamp_limit < MAX77843_CHG_INPUT_CURRENT_LIMIT_REF)
+ val = 0x03;
+ else
+ val = 0x02;
+
+ input_uamp_limit -= MAX77843_CHG_INPUT_CURRENT_LIMIT_MIN;
+ input_uamp_limit /= MAX77843_CHG_INPUT_CURRENT_LIMIT_STEP;
+ reg_data = val + input_uamp_limit;
+ }
+
+ ret = regmap_write(regmap, MAX77843_CHG_REG_CHG_CNFG_09, reg_data);
+ if (ret)
+ dev_err(charger->dev,
+ "Failed to write charge current limit: %d\n", ret);
+
+ return ret;
+}
+
+static int max77843_charger_init_top_off(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ struct max77843_charger_info *info = charger->info;
+ unsigned int top_off_uamp = info->top_off_uamp;
+ int ret;
+ unsigned int reg_data;
+
+ if (top_off_uamp == MAX77843_CHG_TOP_OFF_CURRENT_MIN) {
+ reg_data = 0x00;
+ } else if (top_off_uamp == MAX77843_CHG_TOP_OFF_CURRENT_MAX) {
+ reg_data = 0x07;
+ } else {
+ top_off_uamp -= MAX77843_CHG_TOP_OFF_CURRENT_MIN;
+ top_off_uamp /= MAX77843_CHG_TOP_OFF_CURRENT_STEP;
+ reg_data = top_off_uamp;
+ }
+
+ ret = regmap_update_bits(regmap, MAX77843_CHG_REG_CHG_CNFG_03,
+ MAX77843_CHG_TOP_OFF_CURRENT_MASK, reg_data);
+ if (ret)
+ dev_err(charger->dev,
+ "Failed to write top off current: %d\n", ret);
+
+ return ret;
+}
+
+static int max77843_charger_init_fast_charge(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ struct max77843_charger_info *info = charger->info;
+ unsigned int fast_charge_uamp = info->fast_charge_uamp;
+ int ret;
+ unsigned int reg_data;
+
+ if (fast_charge_uamp < info->input_uamp_limit) {
+ reg_data = 0x09;
+ } else if (fast_charge_uamp == MAX77843_CHG_FAST_CHG_CURRENT_MIN) {
+ reg_data = 0x02;
+ } else if (fast_charge_uamp == MAX77843_CHG_FAST_CHG_CURRENT_MAX) {
+ reg_data = 0x3f;
+ } else {
+ fast_charge_uamp -= MAX77843_CHG_FAST_CHG_CURRENT_MIN;
+ fast_charge_uamp /= MAX77843_CHG_FAST_CHG_CURRENT_STEP;
+ reg_data = 0x02 + fast_charge_uamp;
+ }
+
+ ret = regmap_update_bits(regmap, MAX77843_CHG_REG_CHG_CNFG_02,
+ MAX77843_CHG_FAST_CHG_CURRENT_MASK, reg_data);
+ if (ret)
+ dev_err(charger->dev,
+ "Failed to write fast charge current: %d\n", ret);
+
+ return ret;
+}
+
+static int max77843_charger_init(struct max77843_charger *charger)
+{
+ struct regmap *regmap = charger->regmap;
+ int ret;
+
+ ret = regmap_write(regmap, MAX77843_CHG_REG_CHG_CNFG_06,
+ MAX77843_CHG_WRITE_CAP_UNBLOCK);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to unblock write capability: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_write(regmap, MAX77843_CHG_REG_CHG_CNFG_01,
+ MAX77843_CHG_RESTART_THRESHOLD_DISABLE);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to write charger restart threshold: %d\n", ret);
+ return ret;
+ }
+
+ ret = max77843_charger_init_fast_charge(charger);
+ if (ret) {
+ dev_err(charger->dev,
+ "Failed to set fast charge mode: %d\n", ret);
+ return ret;
+ }
+
+ ret = max77843_charger_init_top_off(charger);
+ if (ret) {
+ dev_err(charger->dev, "Failed to set top off charge mode.\n");
+ return ret;
+ }
+
+ ret = max77843_charger_init_current_limit(charger);
+ if (ret)
+ dev_err(charger->dev, "Faied to set current limit.\n");
+
+ return 0;
+}
+
+static struct max77843_charger_info *max77843_charger_dt_init(
+ struct platform_device *pdev)
+{
+ struct max77843_charger_info *info;
+ struct device_node *np = pdev->dev.of_node;
+ int ret;
+
+ if (!np) {
+ dev_err(&pdev->dev, "No charger OF node\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return ERR_PTR(-ENOMEM);
+
+ ret = of_property_read_u32(np, "maxim,fast-charge-uamp",
+ &info->fast_charge_uamp);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot parse fast charge current.\n");
+ return ERR_PTR(ret);
+ }
+
+ ret = of_property_read_u32(np, "maxim,top-off-uamp",
+ &info->top_off_uamp);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Cannot parse primary charger termination voltage.\n");
+ return ERR_PTR(ret);
+ }
+
+ ret = of_property_read_u32(np, "maxim,input-uamp-limit",
+ &info->input_uamp_limit);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot parse input current limit value\n");
+ return ERR_PTR(ret);
+ }
+
+ return info;
+}
+
+static int max77843_charger_probe(struct platform_device *pdev)
+{
+ struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent);
+ struct max77843_charger *charger;
+ int ret;
+
+ charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL);
+ if (!charger)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, charger);
+ charger->dev = &pdev->dev;
+ charger->max77843 = max77843;
+ charger->client = max77843->i2c_chg;
+ charger->regmap = max77843->regmap_chg;
+
+ charger->info = max77843_charger_dt_init(pdev);
+ if (IS_ERR_OR_NULL(charger->info))
+ return PTR_ERR(charger->info);
+
+ charger->psy.name = "max77843-charger";
+ charger->psy.type = POWER_SUPPLY_TYPE_MAINS;
+ charger->psy.get_property = max77843_charger_get_property;
+ charger->psy.properties = max77843_charger_props;
+ charger->psy.num_properties = ARRAY_SIZE(max77843_charger_props);
+
+ ret = max77843_charger_init(charger);
+ if (ret)
+ return ret;
+
+ ret = power_supply_register(&pdev->dev, &charger->psy);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Failed to register power supply %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int max77843_charger_remove(struct platform_device *pdev)
+{
+ struct max77843_charger *charger = platform_get_drvdata(pdev);
+
+ power_supply_unregister(&charger->psy);
+
+ return 0;
+}
+
+static const struct platform_device_id max77843_charger_id[] = {
+ { "max77843-charger", },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, max77843_charger_id);
+
+static struct platform_driver max77843_charger_driver = {
+ .driver = {
+ .name = "max77843-charger",
+ },
+ .probe = max77843_charger_probe,
+ .remove = max77843_charger_remove,
+ .id_table = max77843_charger_id,
+};
+module_platform_driver(max77843_charger_driver);
+
+MODULE_DESCRIPTION("Maxim MAX77843 charger driver");
+MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
+MODULE_LICENSE("GPL v2");
--
1.7.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843
2015-03-31 13:23 [PATCH v8 0/2] Add new MFD driver for MAX77843 Beomho Seo
2015-03-31 13:23 ` [PATCH v8 1/2] power: max77843_charger: Add Max77843 charger device driver Beomho Seo
@ 2015-03-31 13:23 ` Beomho Seo
2015-04-28 13:35 ` Lee Jones
1 sibling, 1 reply; 4+ messages in thread
From: Beomho Seo @ 2015-03-31 13:23 UTC (permalink / raw)
To: lee.jones, sre, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak
Cc: linux-kernel, linux-pm, devicetree, cw00.choi, sangbae90.lee,
inki.dae, Jaewon Kim, Dmitry Torokhov, Beomho Seo
From: Jaewon Kim <jaewon02.kim@samsung.com>
Add document describing device tree bindings for max77843 MFD.
Drivers: MFD core, regulator, extcon, charger and fuelgauge.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
---
Documentation/devicetree/bindings/mfd/max77843.txt | 100 ++++++++++++++++++++
1 file changed, 100 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/max77843.txt
diff --git a/Documentation/devicetree/bindings/mfd/max77843.txt b/Documentation/devicetree/bindings/mfd/max77843.txt
new file mode 100644
index 0000000..4111f84
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/max77843.txt
@@ -0,0 +1,100 @@
+Maxim MAX77843 multi-function device
+
+MAX77843 is a Multi-Function Device with the following submodules:
+- PMIC : 2 SAFEOUT LDOs for USB device
+- CHARGER : Li+ battery charger with Fuel Gauge
+- MUIC : Micro USB Interface Controller
+- HAPTIC : Motor Controller for tactile feedback
+
+It is interfaced to host controller using I2C.
+
+Required properties:
+- compatible : Must be "maxim,max77843".
+- reg : I2C slave address of PMIC block.
+- interrupts : I2C line for main SoCs.
+- interrupt-parent : The parent of interrupt controller.
+
+Optional properties:
+- regulators : The regulators of max77843 have to be instantiated under subnode
+ named "regulators" using the following format.
+
+ [*]refer : Documentation/devicetree/bindings/regulator/regulator.txt
+
+ regulators {
+ SAFEOUT {
+ regulator-name = "SAFEOUT";
+ };
+ }
+
+ List of valid regulator names:
+ - SAFEOUT1, SAFEOUT2, CHARGER.
+
+- max77843-muic : This properties used by extcon consumers.
+ Required properties:
+ - compatible : Must be "maxim,max77842-muic".
+
+- max77843-charger : There battery charger of MAX77843 have to be instantiated
+ under sub-node named "max77843-charger" using the following format.
+ Required properties:
+ - compatible : Must be "maxim,max77842-charger".
+ - maxim,fast-charge-uamp : Fast charge current levels are
+ 100 mA to 3150 mA programmed by I2C per 100 mA.
+ - maxim,top-off-uamp : Top off current threshold levels are
+ 125 mA to 650 mA programmed by I2C per 75 mA.
+ - maxim,input-uamp-limit : Input current limit levels are
+ 100 mA to 3533 mA programmed by I2C per 33 mA.
+
+- max77843-haptic : The MAX77843 haptic device provides the tactile feedback
+ to the user by using PWM(Pulse Width Modulation) signal.
+ Required properties:
+ - compatible : Must be "maxim,max77843-hpatic".
+ - haptic-supply : Power supply for the haptic motor.
+ [*] refer Documentation/devicetree/
+ bindings/regulator/regulator.txt
+ - pwms : phandle for the PWM(Pulse Width Modulation) device.
+ PWM properties should be named "pwms".
+ [*] refer Documentation/devicetree/bindings/pwm/pwm.txt
+
+Example:
+ max77843@66 {
+ compatible = "samsung,max77843";
+ reg = <0x66>;
+ interrupt-parent = <&gpa1>;
+ interrupts = <5 2>;
+
+ regulators {
+ SAFEOUT1 {
+ regulator-name = "SAFEOUT1";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <4950000>;
+ };
+ SAFEOUT2 {
+ regulator-name = "SAFEOUT2";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <4950000>;
+ };
+ CHARGER {
+ regulator-name = "CHARGER";
+ regulator-min-microamp = <100000>;
+ regulator-max-microamp = <3150000>;
+ };
+ };
+
+ haptic {
+ compatible = "maxim,max77843-haptic";
+ haptic-supply = <&haptic_supply>;
+ pwms = <&pwm 0 40000 0>;
+ pwm-names = "haptic";
+ };
+
+ max77843-muic {
+ compatible = "maxim,max77843-muic";
+ };
+
+ max77843-charger {
+ compatible = "maxim,max77843-charger";
+ maxim,fast-charge-uamp = <450000>;
+ maxim,top-off-uamp = <125000>;
+ maxim,input-uamp-limit = <500000>;
+ };
+ };
--
1.7.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843
2015-03-31 13:23 ` [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843 Beomho Seo
@ 2015-04-28 13:35 ` Lee Jones
0 siblings, 0 replies; 4+ messages in thread
From: Lee Jones @ 2015-04-28 13:35 UTC (permalink / raw)
To: Beomho Seo
Cc: sre, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak,
linux-kernel, linux-pm, devicetree, cw00.choi, sangbae90.lee,
inki.dae, Jaewon Kim, Dmitry Torokhov
DT Ack please.
> From: Jaewon Kim <jaewon02.kim@samsung.com>
>
> Add document describing device tree bindings for max77843 MFD.
> Drivers: MFD core, regulator, extcon, charger and fuelgauge.
>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
> Cc: Kumar Gala <galak@codeaurora.org>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
>
> Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
> Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
> ---
> Documentation/devicetree/bindings/mfd/max77843.txt | 100 ++++++++++++++++++++
> 1 file changed, 100 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/max77843.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/max77843.txt b/Documentation/devicetree/bindings/mfd/max77843.txt
> new file mode 100644
> index 0000000..4111f84
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max77843.txt
> @@ -0,0 +1,100 @@
> +Maxim MAX77843 multi-function device
> +
> +MAX77843 is a Multi-Function Device with the following submodules:
> +- PMIC : 2 SAFEOUT LDOs for USB device
> +- CHARGER : Li+ battery charger with Fuel Gauge
> +- MUIC : Micro USB Interface Controller
> +- HAPTIC : Motor Controller for tactile feedback
> +
> +It is interfaced to host controller using I2C.
> +
> +Required properties:
> +- compatible : Must be "maxim,max77843".
> +- reg : I2C slave address of PMIC block.
> +- interrupts : I2C line for main SoCs.
> +- interrupt-parent : The parent of interrupt controller.
> +
> +Optional properties:
> +- regulators : The regulators of max77843 have to be instantiated under subnode
> + named "regulators" using the following format.
> +
> + [*]refer : Documentation/devicetree/bindings/regulator/regulator.txt
> +
> + regulators {
> + SAFEOUT {
> + regulator-name = "SAFEOUT";
> + };
> + }
> +
> + List of valid regulator names:
> + - SAFEOUT1, SAFEOUT2, CHARGER.
> +
> +- max77843-muic : This properties used by extcon consumers.
> + Required properties:
> + - compatible : Must be "maxim,max77842-muic".
> +
> +- max77843-charger : There battery charger of MAX77843 have to be instantiated
> + under sub-node named "max77843-charger" using the following format.
> + Required properties:
> + - compatible : Must be "maxim,max77842-charger".
> + - maxim,fast-charge-uamp : Fast charge current levels are
> + 100 mA to 3150 mA programmed by I2C per 100 mA.
> + - maxim,top-off-uamp : Top off current threshold levels are
> + 125 mA to 650 mA programmed by I2C per 75 mA.
> + - maxim,input-uamp-limit : Input current limit levels are
> + 100 mA to 3533 mA programmed by I2C per 33 mA.
> +
> +- max77843-haptic : The MAX77843 haptic device provides the tactile feedback
> + to the user by using PWM(Pulse Width Modulation) signal.
> + Required properties:
> + - compatible : Must be "maxim,max77843-hpatic".
> + - haptic-supply : Power supply for the haptic motor.
> + [*] refer Documentation/devicetree/
> + bindings/regulator/regulator.txt
> + - pwms : phandle for the PWM(Pulse Width Modulation) device.
> + PWM properties should be named "pwms".
> + [*] refer Documentation/devicetree/bindings/pwm/pwm.txt
> +
> +Example:
> + max77843@66 {
> + compatible = "samsung,max77843";
> + reg = <0x66>;
> + interrupt-parent = <&gpa1>;
> + interrupts = <5 2>;
> +
> + regulators {
> + SAFEOUT1 {
> + regulator-name = "SAFEOUT1";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <4950000>;
> + };
> + SAFEOUT2 {
> + regulator-name = "SAFEOUT2";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <4950000>;
> + };
> + CHARGER {
> + regulator-name = "CHARGER";
> + regulator-min-microamp = <100000>;
> + regulator-max-microamp = <3150000>;
> + };
> + };
> +
> + haptic {
> + compatible = "maxim,max77843-haptic";
> + haptic-supply = <&haptic_supply>;
> + pwms = <&pwm 0 40000 0>;
> + pwm-names = "haptic";
> + };
> +
> + max77843-muic {
> + compatible = "maxim,max77843-muic";
> + };
> +
> + max77843-charger {
> + compatible = "maxim,max77843-charger";
> + maxim,fast-charge-uamp = <450000>;
> + maxim,top-off-uamp = <125000>;
> + maxim,input-uamp-limit = <500000>;
> + };
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 4+ messages in thread
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-- links below jump to the message on this page --
2015-03-31 13:23 [PATCH v8 0/2] Add new MFD driver for MAX77843 Beomho Seo
2015-03-31 13:23 ` [PATCH v8 1/2] power: max77843_charger: Add Max77843 charger device driver Beomho Seo
2015-03-31 13:23 ` [PATCH v8 2/2] Documentation: Add device tree bindings document for max77843 Beomho Seo
2015-04-28 13:35 ` Lee Jones
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