reg = <0xffd08000 0x1000>;
cpu1-start-addr = <0xffd080c4>;
};
+
+ARM64 - Stratix10
+Required properties:
+- compatible : "altr,sys-mgr-s10"
+- reg : Should contain 1 register range(address and length)
+ for system manager register.
+
+Example:
+ sysmgr@ffd12000 {
+ compatible = "altr,sys-mgr-s10";
+ reg = <0xffd12000 0x228>;
+ };
--- /dev/null
+Onkey driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The onkey controller is represented as a sub-node of the PMIC node on
+the device tree.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-onkey".
+
+Optional properties:
+- linux,code: The key-code to be reported when the key is pressed.
+ Defaults to KEY_POWER.
+- maxim,onkey-slide: The system's button is a slide switch, not the default
+ push button.
+
+Example:
+--------
+
+ onkey {
+ compatible = "maxim,max77650-onkey";
+ linux,code = <KEY_END>;
+ maxim,onkey-slide;
+ };
--- /dev/null
+* Texas Instruments - lm3532 White LED driver with ambient light sensing
+capability.
+
+The LM3532 provides the 3 high-voltage, low-side current sinks. The device is
+programmable over an I2C-compatible interface and has independent
+current control for all three channels. The adaptive current regulation
+method allows for different LED currents in each current sink thus allowing
+for a wide variety of backlight and keypad applications.
+
+The main features of the LM3532 include dual ambient light sensor inputs
+each with 32 internal voltage setting resistors, 8-bit logarithmic and linear
+brightness control, dual external PWM brightness control inputs, and up to
+1000:1 dimming ratio with programmable fade in and fade out settings.
+
+Required properties:
+ - compatible : "ti,lm3532"
+ - reg : I2C slave address
+ - #address-cells : 1
+ - #size-cells : 0
+
+Optional properties:
+ - enable-gpios : gpio pin to enable (active high)/disable the device.
+ - ramp-up-us - The Run time ramp rates/step are from one current
+ set-point to another after the device has reached its
+ initial target set point from turn-on
+ - ramp-down-us - The Run time ramp rates/step are from one current
+ set-point to another after the device has reached its
+ initial target set point from turn-on
+ Range for ramp settings: 8us - 65536us
+
+Optional properties if ALS mode is used:
+ - ti,als-vmin - Minimum ALS voltage defined in Volts
+ - ti,als-vmax - Maximum ALS voltage defined in Volts
+ Per the data sheet the max ALS voltage is 2V and the min is 0V
+
+ - ti,als1-imp-sel - ALS1 impedance resistor selection in Ohms
+ - ti,als2-imp-sel - ALS2 impedance resistor selection in Ohms
+ Range for impedance select: 37000 Ohms - 1190 Ohms
+ Values above 37kohms will be set to the "High Impedance" setting
+
+ - ti,als-avrg-time-us - Determines the length of time the device needs to
+ average the two ALS inputs. This is only used if
+ the input mode is LM3532_ALS_INPUT_AVRG.
+ Range: 17920us - 2293760us
+ - ti,als-input-mode - Determines how the device uses the attached ALS
+ devices.
+ 0x00 - ALS1 and ALS2 input average
+ 0x01 - ALS1 Input
+ 0x02 - ALS2 Input
+ 0x03 - Max of ALS1 and ALS2
+
+Required child properties:
+ - reg : Indicates control bank the LED string is controlled by
+ - led-sources : see Documentation/devicetree/bindings/leds/common.txt
+ - ti,led-mode : Defines if the LED strings are manually controlled or
+ if the LED strings are controlled by the ALS.
+ 0x00 - LED strings are I2C controlled via full scale
+ brightness control register
+ 0x01 - LED strings are ALS controlled
+
+Optional LED child properties:
+ - label : see Documentation/devicetree/bindings/leds/common.txt
+ - linux,default-trigger :
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+led-controller@38 {
+ compatible = "ti,lm3532";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x38>;
+
+ enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
+ ramp-up-us = <1024>;
+ ramp-down-us = <65536>;
+
+ ti,als-vmin = <0>;
+ ti,als-vmax = <2000>;
+ ti,als1-imp-sel = <4110>;
+ ti,als2-imp-sel = <2180>;
+ ti,als-avrg-time-us = <17920>;
+ ti,als-input-mode = <0x00>;
+
+ led@0 {
+ reg = <0>;
+ led-sources = <2>;
+ ti,led-mode = <1>;
+ label = ":backlight";
+ linux,default-trigger = "backlight";
+ };
+
+ led@1 {
+ reg = <1>;
+ led-sources = <1>;
+ ti,led-mode = <0>;
+ label = ":kbd_backlight";
+ };
+};
+
+For more product information please see the links below:
+http://www.ti.com/product/LM3532
--- /dev/null
+LED driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The LED controller is represented as a sub-node of the PMIC node on
+the device tree.
+
+This device has three current sinks.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-led"
+- #address-cells: Must be <1>.
+- #size-cells: Must be <0>.
+
+Each LED is represented as a sub-node of the LED-controller node. Up to
+three sub-nodes can be defined.
+
+Required properties of the sub-node:
+------------------------------------
+
+- reg: Must be <0>, <1> or <2>.
+
+Optional properties of the sub-node:
+------------------------------------
+
+- label: See Documentation/devicetree/bindings/leds/common.txt
+- linux,default-trigger: See Documentation/devicetree/bindings/leds/common.txt
+
+For more details, please refer to the generic GPIO DT binding document
+<devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+
+ leds {
+ compatible = "maxim,max77650-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "blue:usr0";
+ };
+
+ led@1 {
+ reg = <1>;
+ label = "red:usr1";
+ linux,default-trigger = "heartbeat";
+ };
+
+ led@2 {
+ reg = <2>;
+ label = "green:usr2";
+ };
+ };
-------------------
- compatible: Must be one of
"maxim,max77620"
- "maxim,max20024".
+ "maxim,max20024"
+ "maxim,max77663"
- reg: I2C device address.
Optional properties:
IRQ numbers for different interrupt source of MAX77620
are defined at dt-bindings/mfd/max77620.h.
+- system-power-controller: Indicates that this PMIC is controlling the
+ system power, see [1] for more details.
+
+[1] Documentation/devicetree/bindings/power/power-controller.txt
+
Optional subnodes and their properties:
=======================================
Here supported time periods by device in microseconds are as follows:
MAX77620 supports 40, 80, 160, 320, 640, 1280, 2560 and 5120 microseconds.
MAX20024 supports 20, 40, 80, 160, 320, 640, 1280 and 2540 microseconds.
+MAX77663 supports 20, 40, 80, 160, 320, 640, 1280 and 2540 microseconds.
-maxim,power-ok-control: configure map power ok bit
1: Enables POK(Power OK) to control nRST_IO and GPIO1
--- /dev/null
+MAX77650 ultra low-power PMIC from Maxim Integrated.
+
+Required properties:
+-------------------
+- compatible: Must be "maxim,max77650"
+- reg: I2C device address.
+- interrupts: The interrupt on the parent the controller is
+ connected to.
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Must be <2>.
+
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Must be <2>. The first cell is the pin number and
+ the second cell is used to specify the gpio active
+ state.
+
+Optional properties:
+--------------------
+gpio-line-names: Single string containing the name of the GPIO line.
+
+The GPIO-controller module is represented as part of the top-level PMIC
+node. The device exposes a single GPIO line.
+
+For device-tree bindings of other sub-modules (regulator, power supply,
+LEDs and onkey) refer to the binding documents under the respective
+sub-system directories.
+
+For more details on GPIO bindings, please refer to the generic GPIO DT
+binding document <devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+
+ pmic@48 {
+ compatible = "maxim,max77650";
+ reg = <0x48>;
+
+ interrupt-controller;
+ interrupt-parent = <&gpio2>;
+ #interrupt-cells = <2>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "max77650-charger";
+ };
Name Child nodes
------ ---------------------------------
- LM3532 Backlight
LM3631 Backlight and regulator
LM3632 Backlight and regulator
LM3633 Backlight, LED and fault monitor
Required properties:
- compatible: Should be one of:
- "ti,lm3532"
"ti,lm3631"
"ti,lm3632"
"ti,lm3633"
0x11 for LM3632
0x29 for LM3631
0x36 for LM3633, LM3697
- 0x38 for LM3532
0x63 for LM3695
Optional property:
[2] ../leds/leds-lm3633.txt
[3] ../regulator/lm363x-regulator.txt
-lm3532@38 {
- compatible = "ti,lm3532";
- reg = <0x38>;
-
- enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
-
- backlight {
- compatible = "ti,lm3532-backlight";
-
- lcd {
- led-sources = <0 1 2>;
- ramp-up-msec = <30>;
- ramp-down-msec = <0>;
- };
- };
-};
-
lm3631@29 {
compatible = "ti,lm3631";
reg = <0x29>;
--- /dev/null
+Battery charger driver for MAX77650 PMIC from Maxim Integrated.
+
+This module is part of the MAX77650 MFD device. For more details
+see Documentation/devicetree/bindings/mfd/max77650.txt.
+
+The charger is represented as a sub-node of the PMIC node on the device tree.
+
+Required properties:
+--------------------
+- compatible: Must be "maxim,max77650-charger"
+
+Optional properties:
+--------------------
+- input-voltage-min-microvolt: Minimum CHGIN regulation voltage. Must be one
+ of: 4000000, 4100000, 4200000, 4300000,
+ 4400000, 4500000, 4600000, 4700000.
+- input-current-limit-microamp: CHGIN input current limit (in microamps). Must
+ be one of: 95000, 190000, 285000, 380000,
+ 475000.
+
+Example:
+--------
+
+ charger {
+ compatible = "maxim,max77650-charger";
+ input-voltage-min-microvolt = <4200000>;
+ input-current-limit-microamp = <285000>;
+ };
S: Maintained
F: drivers/gpio/gpio-altera.c
+ALTERA SYSTEM MANAGER DRIVER
+M: Thor Thayer <thor.thayer@linux.intel.com>
+S: Maintained
+F: drivers/mfd/altera-sysmgr.c
+F: include/linux/mfd/altera-sysgmr.h
+
ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT
M: Thor Thayer <thor.thayer@linux.intel.com>
S: Maintained
F: Documentation/devicetree/bindings/sound/max9860.txt
F: sound/soc/codecs/max9860.*
+MAXIM MAX77650 PMIC MFD DRIVER
+M: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/*/*max77650.txt
+F: Documentation/devicetree/bindings/*/max77650*.txt
+F: include/linux/mfd/max77650.h
+F: drivers/mfd/max77650.c
+F: drivers/regulator/max77650-regulator.c
+F: drivers/power/supply/max77650-charger.c
+F: drivers/input/misc/max77650-onkey.c
+F: drivers/leds/leds-max77650.c
+F: drivers/gpio/gpio-max77650.c
+
MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
M: Javier Martinez Canillas <javier@dowhile0.org>
L: linux-kernel@vger.kernel.org
width-mm = <50>;
height-mm = <89>;
- backlight = <&lcd_backlight>;
panel-timing {
clock-frequency = <0>; /* Calculated by dsi */
};
&i2c1 {
- lm3532@38 {
+ led-controller@38 {
compatible = "ti,lm3532";
+ #address-cells = <1>;
+ #size-cells = <0>;
reg = <0x38>;
enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
- lcd_backlight: backlight {
- compatible = "ti,lm3532-backlight";
+ ramp-up-us = <1024>;
+ ramp-down-us = <8193>;
- lcd {
- led-sources = <0 1 2>;
- ramp-up-msec = <1>;
- ramp-down-msec = <0>;
- };
+ led@0 {
+ reg = <0>;
+ led-sources = <2>;
+ ti,led-mode = <0>;
+ label = ":backlight";
+ linux,default-trigger = "backlight";
+ };
+
+ led@1 {
+ reg = <1>;
+ led-sources = <1>;
+ ti,led-mode = <0>;
+ label = ":kbd_backlight";
};
};
};
CONFIG_WATCHDOG=y
CONFIG_DW_WATCHDOG=y
CONFIG_MFD_ALTERA_A10SR=y
+CONFIG_MFD_ALTERA_SYSMGR=y
CONFIG_MFD_STMPE=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
};
sysmgr: sysmgr@ffd12000 {
- compatible = "altr,sys-mgr", "syscon";
+ compatible = "altr,sys-mgr-s10","altr,sys-mgr";
reg = <0xffd12000 0x228>;
};
CONFIG_RENESAS_WDT=y
CONFIG_UNIPHIER_WATCHDOG=y
CONFIG_BCM2835_WDT=y
+CONFIG_MFD_ALTERA_SYSMGR=y
CONFIG_MFD_BD9571MWV=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_AXP20X_RSB=y
driver also provides interrupt support for each of the gpios.
Say yes here to enable the max77620 to be used as gpio controller.
+config GPIO_MAX77650
+ tristate "Maxim MAX77650/77651 GPIO support"
+ depends on MFD_MAX77650
+ help
+ GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
+ These chips have a single pin that can be configured as GPIO.
+
config GPIO_MSIC
bool "Intel MSIC mixed signal gpio support"
depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
obj-$(CONFIG_GPIO_MAX7301) += gpio-max7301.o
obj-$(CONFIG_GPIO_MAX732X) += gpio-max732x.o
obj-$(CONFIG_GPIO_MAX77620) += gpio-max77620.o
+obj-$(CONFIG_GPIO_MAX77650) += gpio-max77650.o
obj-$(CONFIG_GPIO_MB86S7X) += gpio-mb86s7x.o
obj-$(CONFIG_GPIO_MENZ127) += gpio-menz127.o
obj-$(CONFIG_GPIO_MERRIFIELD) += gpio-merrifield.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// GPIO driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/gpio/driver.h>
+#include <linux/i2c.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_GPIO_DIR_MASK BIT(0)
+#define MAX77650_GPIO_INVAL_MASK BIT(1)
+#define MAX77650_GPIO_DRV_MASK BIT(2)
+#define MAX77650_GPIO_OUTVAL_MASK BIT(3)
+#define MAX77650_GPIO_DEBOUNCE_MASK BIT(4)
+
+#define MAX77650_GPIO_DIR_OUT 0x00
+#define MAX77650_GPIO_DIR_IN BIT(0)
+#define MAX77650_GPIO_OUT_LOW 0x00
+#define MAX77650_GPIO_OUT_HIGH BIT(3)
+#define MAX77650_GPIO_DRV_OPEN_DRAIN 0x00
+#define MAX77650_GPIO_DRV_PUSH_PULL BIT(2)
+#define MAX77650_GPIO_DEBOUNCE BIT(4)
+
+#define MAX77650_GPIO_DIR_BITS(_reg) \
+ ((_reg) & MAX77650_GPIO_DIR_MASK)
+#define MAX77650_GPIO_INVAL_BITS(_reg) \
+ (((_reg) & MAX77650_GPIO_INVAL_MASK) >> 1)
+
+struct max77650_gpio_chip {
+ struct regmap *map;
+ struct gpio_chip gc;
+ int irq;
+};
+
+static int max77650_gpio_direction_input(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DIR_MASK,
+ MAX77650_GPIO_DIR_IN);
+}
+
+static int max77650_gpio_direction_output(struct gpio_chip *gc,
+ unsigned int offset, int value)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ int mask, regval;
+
+ mask = MAX77650_GPIO_DIR_MASK | MAX77650_GPIO_OUTVAL_MASK;
+ regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+ regval |= MAX77650_GPIO_DIR_OUT;
+
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO, mask, regval);
+}
+
+static void max77650_gpio_set_value(struct gpio_chip *gc,
+ unsigned int offset, int value)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ int rv, regval;
+
+ regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+
+ rv = regmap_update_bits(chip->map, MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_OUTVAL_MASK, regval);
+ if (rv)
+ dev_err(gc->parent, "cannot set GPIO value: %d\n", rv);
+}
+
+static int max77650_gpio_get_value(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ unsigned int val;
+ int rv;
+
+ rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+ if (rv)
+ return rv;
+
+ return MAX77650_GPIO_INVAL_BITS(val);
+}
+
+static int max77650_gpio_get_direction(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+ unsigned int val;
+ int rv;
+
+ rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+ if (rv)
+ return rv;
+
+ return MAX77650_GPIO_DIR_BITS(val);
+}
+
+static int max77650_gpio_set_config(struct gpio_chip *gc,
+ unsigned int offset, unsigned long cfg)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ switch (pinconf_to_config_param(cfg)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DRV_MASK,
+ MAX77650_GPIO_DRV_OPEN_DRAIN);
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DRV_MASK,
+ MAX77650_GPIO_DRV_PUSH_PULL);
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ return regmap_update_bits(chip->map,
+ MAX77650_REG_CNFG_GPIO,
+ MAX77650_GPIO_DEBOUNCE_MASK,
+ MAX77650_GPIO_DEBOUNCE);
+ default:
+ return -ENOTSUPP;
+ }
+}
+
+static int max77650_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
+{
+ struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+ return chip->irq;
+}
+
+static int max77650_gpio_probe(struct platform_device *pdev)
+{
+ struct max77650_gpio_chip *chip;
+ struct device *dev, *parent;
+ struct i2c_client *i2c;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+ i2c = to_i2c_client(parent);
+
+ chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->map = dev_get_regmap(parent, NULL);
+ if (!chip->map)
+ return -ENODEV;
+
+ chip->irq = platform_get_irq_byname(pdev, "GPI");
+ if (chip->irq < 0)
+ return chip->irq;
+
+ chip->gc.base = -1;
+ chip->gc.ngpio = 1;
+ chip->gc.label = i2c->name;
+ chip->gc.parent = dev;
+ chip->gc.owner = THIS_MODULE;
+ chip->gc.can_sleep = true;
+
+ chip->gc.direction_input = max77650_gpio_direction_input;
+ chip->gc.direction_output = max77650_gpio_direction_output;
+ chip->gc.set = max77650_gpio_set_value;
+ chip->gc.get = max77650_gpio_get_value;
+ chip->gc.get_direction = max77650_gpio_get_direction;
+ chip->gc.set_config = max77650_gpio_set_config;
+ chip->gc.to_irq = max77650_gpio_to_irq;
+
+ return devm_gpiochip_add_data(dev, &chip->gc, chip);
+}
+
+static struct platform_driver max77650_gpio_driver = {
+ .driver = {
+ .name = "max77650-gpio",
+ },
+ .probe = max77650_gpio_probe,
+};
+module_platform_driver(max77650_gpio_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 GPIO driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
tristate "M68k Beeper support"
depends on M68K
+config INPUT_MAX77650_ONKEY
+ tristate "Maxim MAX77650 ONKEY support"
+ depends on MFD_MAX77650
+ help
+ Support the ONKEY of the MAX77650 PMIC as an input device.
+
+ To compile this driver as a module, choose M here: the module
+ will be called max77650-onkey.
+
config INPUT_MAX77693_HAPTIC
tristate "MAXIM MAX77693/MAX77843 haptic controller support"
depends on (MFD_MAX77693 || MFD_MAX77843) && PWM
obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
+obj-$(CONFIG_INPUT_MAX77650_ONKEY) += max77650-onkey.o
obj-$(CONFIG_INPUT_MAX77693_HAPTIC) += max77693-haptic.o
obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// ONKEY driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_ONKEY_MODE_MASK BIT(3)
+#define MAX77650_ONKEY_MODE_PUSH 0x00
+#define MAX77650_ONKEY_MODE_SLIDE BIT(3)
+
+struct max77650_onkey {
+ struct input_dev *input;
+ unsigned int code;
+};
+
+static irqreturn_t max77650_onkey_falling(int irq, void *data)
+{
+ struct max77650_onkey *onkey = data;
+
+ input_report_key(onkey->input, onkey->code, 0);
+ input_sync(onkey->input);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t max77650_onkey_rising(int irq, void *data)
+{
+ struct max77650_onkey *onkey = data;
+
+ input_report_key(onkey->input, onkey->code, 1);
+ input_sync(onkey->input);
+
+ return IRQ_HANDLED;
+}
+
+static int max77650_onkey_probe(struct platform_device *pdev)
+{
+ int irq_r, irq_f, error, mode;
+ struct max77650_onkey *onkey;
+ struct device *dev, *parent;
+ struct regmap *map;
+ unsigned int type;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+
+ map = dev_get_regmap(parent, NULL);
+ if (!map)
+ return -ENODEV;
+
+ onkey = devm_kzalloc(dev, sizeof(*onkey), GFP_KERNEL);
+ if (!onkey)
+ return -ENOMEM;
+
+ error = device_property_read_u32(dev, "linux,code", &onkey->code);
+ if (error)
+ onkey->code = KEY_POWER;
+
+ if (device_property_read_bool(dev, "maxim,onkey-slide")) {
+ mode = MAX77650_ONKEY_MODE_SLIDE;
+ type = EV_SW;
+ } else {
+ mode = MAX77650_ONKEY_MODE_PUSH;
+ type = EV_KEY;
+ }
+
+ error = regmap_update_bits(map, MAX77650_REG_CNFG_GLBL,
+ MAX77650_ONKEY_MODE_MASK, mode);
+ if (error)
+ return error;
+
+ irq_f = platform_get_irq_byname(pdev, "nEN_F");
+ if (irq_f < 0)
+ return irq_f;
+
+ irq_r = platform_get_irq_byname(pdev, "nEN_R");
+ if (irq_r < 0)
+ return irq_r;
+
+ onkey->input = devm_input_allocate_device(dev);
+ if (!onkey->input)
+ return -ENOMEM;
+
+ onkey->input->name = "max77650_onkey";
+ onkey->input->phys = "max77650_onkey/input0";
+ onkey->input->id.bustype = BUS_I2C;
+ input_set_capability(onkey->input, type, onkey->code);
+
+ error = devm_request_any_context_irq(dev, irq_f, max77650_onkey_falling,
+ IRQF_ONESHOT, "onkey-down", onkey);
+ if (error < 0)
+ return error;
+
+ error = devm_request_any_context_irq(dev, irq_r, max77650_onkey_rising,
+ IRQF_ONESHOT, "onkey-up", onkey);
+ if (error < 0)
+ return error;
+
+ return input_register_device(onkey->input);
+}
+
+static struct platform_driver max77650_onkey_driver = {
+ .driver = {
+ .name = "max77650-onkey",
+ },
+ .probe = max77650_onkey_probe,
+};
+module_platform_driver(max77650_onkey_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 ONKEY driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
controlled manually or using PWM input or using ambient
light automatically.
+config LEDS_LM3532
+ tristate "LCD Backlight driver for LM3532"
+ depends on LEDS_CLASS
+ depends on I2C
+ help
+ This option enables support for the LCD backlight using
+ LM3532 ambient light sensor chip. This ALS chip can be
+ controlled manually or using PWM input or using ambient
+ light automatically.
+
config LEDS_LM3533
tristate "LED support for LM3533"
depends on LEDS_CLASS
This option enables support for Texas Instruments TLC59108
and TLC59116 LED controllers.
+config LEDS_MAX77650
+ tristate "LED support for Maxim MAX77650 PMIC"
+ depends on LEDS_CLASS && MFD_MAX77650
+ help
+ LEDs driver for MAX77650 family of PMICs from Maxim Integrated.
+
config LEDS_MAX77693
tristate "LED support for MAX77693 Flash"
depends on LEDS_CLASS_FLASH
obj-$(CONFIG_LEDS_CPCAP) += leds-cpcap.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o
+obj-$(CONFIG_LEDS_LM3532) += leds-lm3532.o
obj-$(CONFIG_LEDS_LM3533) += leds-lm3533.o
obj-$(CONFIG_LEDS_LM3642) += leds-lm3642.o
obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_NS2) += leds-ns2.o
obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o
obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
+obj-$(CONFIG_LEDS_MAX77650) += leds-max77650.o
obj-$(CONFIG_LEDS_MAX77693) += leds-max77693.o
obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o
obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+// TI LM3532 LED driver
+// Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+#include <linux/regulator/consumer.h>
+#include <linux/module.h>
+#include <uapi/linux/uleds.h>
+#include <linux/gpio/consumer.h>
+
+#define LM3532_NAME "lm3532-led"
+#define LM3532_BL_MODE_MANUAL 0x00
+#define LM3532_BL_MODE_ALS 0x01
+
+#define LM3532_REG_OUTPUT_CFG 0x10
+#define LM3532_REG_STARTSHUT_RAMP 0x11
+#define LM3532_REG_RT_RAMP 0x12
+#define LM3532_REG_PWM_A_CFG 0x13
+#define LM3532_REG_PWM_B_CFG 0x14
+#define LM3532_REG_PWM_C_CFG 0x15
+#define LM3532_REG_ZONE_CFG_A 0x16
+#define LM3532_REG_CTRL_A_BRT 0x17
+#define LM3532_REG_ZONE_CFG_B 0x18
+#define LM3532_REG_CTRL_B_BRT 0x19
+#define LM3532_REG_ZONE_CFG_C 0x1a
+#define LM3532_REG_CTRL_C_BRT 0x1b
+#define LM3532_REG_ENABLE 0x1d
+#define LM3532_ALS_CONFIG 0x23
+#define LM3532_REG_ZN_0_HI 0x60
+#define LM3532_REG_ZN_0_LO 0x61
+#define LM3532_REG_ZN_1_HI 0x62
+#define LM3532_REG_ZN_1_LO 0x63
+#define LM3532_REG_ZN_2_HI 0x64
+#define LM3532_REG_ZN_2_LO 0x65
+#define LM3532_REG_ZN_3_HI 0x66
+#define LM3532_REG_ZN_3_LO 0x67
+#define LM3532_REG_MAX 0x7e
+
+/* Contorl Enable */
+#define LM3532_CTRL_A_ENABLE BIT(0)
+#define LM3532_CTRL_B_ENABLE BIT(1)
+#define LM3532_CTRL_C_ENABLE BIT(2)
+
+/* PWM Zone Control */
+#define LM3532_PWM_ZONE_MASK 0x7c
+#define LM3532_PWM_ZONE_0_EN BIT(2)
+#define LM3532_PWM_ZONE_1_EN BIT(3)
+#define LM3532_PWM_ZONE_2_EN BIT(4)
+#define LM3532_PWM_ZONE_3_EN BIT(5)
+#define LM3532_PWM_ZONE_4_EN BIT(6)
+
+/* Brightness Configuration */
+#define LM3532_I2C_CTRL BIT(0)
+#define LM3532_ALS_CTRL 0
+#define LM3532_LINEAR_MAP BIT(1)
+#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4))
+#define LM3532_ZONE_0 0
+#define LM3532_ZONE_1 BIT(2)
+#define LM3532_ZONE_2 BIT(3)
+#define LM3532_ZONE_3 (BIT(2) | BIT(3))
+#define LM3532_ZONE_4 BIT(4)
+
+#define LM3532_ENABLE_ALS BIT(3)
+#define LM3532_ALS_SEL_SHIFT 6
+
+/* Zone Boundary Register */
+#define LM3532_ALS_WINDOW_mV 2000
+#define LM3532_ALS_ZB_MAX 4
+#define LM3532_ALS_OFFSET_mV 2
+
+#define LM3532_CONTROL_A 0
+#define LM3532_CONTROL_B 1
+#define LM3532_CONTROL_C 2
+#define LM3532_MAX_CONTROL_BANKS 3
+#define LM3532_MAX_LED_STRINGS 3
+
+#define LM3532_OUTPUT_CFG_MASK 0x3
+#define LM3532_BRT_VAL_ADJUST 8
+#define LM3532_RAMP_DOWN_SHIFT 3
+
+#define LM3532_NUM_RAMP_VALS 8
+#define LM3532_NUM_AVG_VALS 8
+#define LM3532_NUM_IMP_VALS 32
+
+/*
+ * struct lm3532_als_data
+ * @config - value of ALS configuration register
+ * @als1_imp_sel - value of ALS1 resistor select register
+ * @als2_imp_sel - value of ALS2 resistor select register
+ * @als_avrg_time - ALS averaging time
+ * @als_input_mode - ALS input mode for brightness control
+ * @als_vmin - Minimum ALS voltage
+ * @als_vmax - Maximum ALS voltage
+ * @zone_lo - values of ALS lo ZB(Zone Boundary) registers
+ * @zone_hi - values of ALS hi ZB(Zone Boundary) registers
+ */
+struct lm3532_als_data {
+ u8 config;
+ u8 als1_imp_sel;
+ u8 als2_imp_sel;
+ u8 als_avrg_time;
+ u8 als_input_mode;
+ u32 als_vmin;
+ u32 als_vmax;
+ u8 zones_lo[LM3532_ALS_ZB_MAX];
+ u8 zones_hi[LM3532_ALS_ZB_MAX];
+};
+
+/**
+ * struct lm3532_led
+ * @led_dev: led class device
+ * @priv - Pointer the device data structure
+ * @control_bank - Control bank the LED is associated to
+ * @mode - Mode of the LED string
+ * @num_leds - Number of LED strings are supported in this array
+ * @led_strings - The LED strings supported in this array
+ * @label - LED label
+ */
+struct lm3532_led {
+ struct led_classdev led_dev;
+ struct lm3532_data *priv;
+
+ int control_bank;
+ int mode;
+ int num_leds;
+ u32 led_strings[LM3532_MAX_CONTROL_BANKS];
+ char label[LED_MAX_NAME_SIZE];
+};
+
+/**
+ * struct lm3532_data
+ * @enable_gpio - Hardware enable gpio
+ * @regulator: regulator
+ * @client: i2c client
+ * @regmap - Devices register map
+ * @dev - Pointer to the devices device struct
+ * @lock - Lock for reading/writing the device
+ * @als_data - Pointer to the als data struct
+ * @runtime_ramp_up - Runtime ramp up setting
+ * @runtime_ramp_down - Runtime ramp down setting
+ * @leds - Array of LED strings
+ */
+struct lm3532_data {
+ struct gpio_desc *enable_gpio;
+ struct regulator *regulator;
+ struct i2c_client *client;
+ struct regmap *regmap;
+ struct device *dev;
+ struct mutex lock;
+
+ struct lm3532_als_data *als_data;
+
+ u32 runtime_ramp_up;
+ u32 runtime_ramp_down;
+
+ struct lm3532_led leds[];
+};
+
+static const struct reg_default lm3532_reg_defs[] = {
+ {LM3532_REG_OUTPUT_CFG, 0xe4},
+ {LM3532_REG_STARTSHUT_RAMP, 0xc0},
+ {LM3532_REG_RT_RAMP, 0xc0},
+ {LM3532_REG_PWM_A_CFG, 0x82},
+ {LM3532_REG_PWM_B_CFG, 0x82},
+ {LM3532_REG_PWM_C_CFG, 0x82},
+ {LM3532_REG_ZONE_CFG_A, 0xf1},
+ {LM3532_REG_CTRL_A_BRT, 0xf3},
+ {LM3532_REG_ZONE_CFG_B, 0xf1},
+ {LM3532_REG_CTRL_B_BRT, 0xf3},
+ {LM3532_REG_ZONE_CFG_C, 0xf1},
+ {LM3532_REG_CTRL_C_BRT, 0xf3},
+ {LM3532_REG_ENABLE, 0xf8},
+ {LM3532_ALS_CONFIG, 0x44},
+ {LM3532_REG_ZN_0_HI, 0x35},
+ {LM3532_REG_ZN_0_LO, 0x33},
+ {LM3532_REG_ZN_1_HI, 0x6a},
+ {LM3532_REG_ZN_1_LO, 0x66},
+ {LM3532_REG_ZN_2_HI, 0xa1},
+ {LM3532_REG_ZN_2_LO, 0x99},
+ {LM3532_REG_ZN_3_HI, 0xdc},
+ {LM3532_REG_ZN_3_LO, 0xcc},
+};
+
+static const struct regmap_config lm3532_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = LM3532_REG_MAX,
+ .reg_defaults = lm3532_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(lm3532_reg_defs),
+ .cache_type = REGCACHE_FLAT,
+};
+
+const static int als_imp_table[LM3532_NUM_IMP_VALS] = {37000, 18500, 12330,
+ 92500, 7400, 6170, 5290,
+ 4630, 4110, 3700, 3360,
+ 3080, 2850, 2640, 2440,
+ 2310, 2180, 2060, 1950,
+ 1850, 1760, 1680, 1610,
+ 1540, 1480, 1420, 1370,
+ 1320, 1280, 1230, 1190};
+static int lm3532_get_als_imp_index(int als_imped)
+{
+ int i;
+
+ if (als_imped > als_imp_table[1])
+ return 0;
+
+ if (als_imped < als_imp_table[LM3532_NUM_IMP_VALS - 1])
+ return LM3532_NUM_IMP_VALS - 1;
+
+ for (i = 1; i < LM3532_NUM_IMP_VALS; i++) {
+ if (als_imped == als_imp_table[i])
+ return i;
+
+ /* Find an approximate index by looking up the table */
+ if (als_imped < als_imp_table[i - 1] &&
+ als_imped > als_imp_table[i]) {
+ if (als_imped - als_imp_table[i - 1] <
+ als_imp_table[i] - als_imped)
+ return i + 1;
+ else
+ return i;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int lm3532_get_index(const int table[], int size, int value)
+{
+ int i;
+
+ for (i = 1; i < size; i++) {
+ if (value == table[i])
+ return i;
+
+ /* Find an approximate index by looking up the table */
+ if (value > table[i - 1] &&
+ value < table[i]) {
+ if (value - table[i - 1] < table[i] - value)
+ return i - 1;
+ else
+ return i;
+ }
+ }
+
+ return -EINVAL;
+}
+
+const static int als_avrg_table[LM3532_NUM_AVG_VALS] = {17920, 35840, 71680,
+ 1433360, 286720, 573440,
+ 1146880, 2293760};
+static int lm3532_get_als_avg_index(int avg_time)
+{
+ if (avg_time <= als_avrg_table[0])
+ return 0;
+
+ if (avg_time > als_avrg_table[LM3532_NUM_AVG_VALS - 1])
+ return LM3532_NUM_AVG_VALS - 1;
+
+ return lm3532_get_index(&als_avrg_table[0], LM3532_NUM_AVG_VALS,
+ avg_time);
+}
+
+const static int ramp_table[LM3532_NUM_RAMP_VALS] = { 8, 1024, 2048, 4096, 8192,
+ 16384, 32768, 65536};
+static int lm3532_get_ramp_index(int ramp_time)
+{
+ if (ramp_time <= ramp_table[0])
+ return 0;
+
+ if (ramp_time > ramp_table[LM3532_NUM_RAMP_VALS - 1])
+ return LM3532_NUM_RAMP_VALS - 1;
+
+ return lm3532_get_index(&ramp_table[0], LM3532_NUM_RAMP_VALS,
+ ramp_time);
+}
+
+static int lm3532_led_enable(struct lm3532_led *led_data)
+{
+ int ctrl_en_val = BIT(led_data->control_bank);
+ int ret;
+
+ ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
+ ctrl_en_val, ctrl_en_val);
+ if (ret) {
+ dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret);
+ return ret;
+ }
+
+ return regulator_enable(led_data->priv->regulator);
+}
+
+static int lm3532_led_disable(struct lm3532_led *led_data)
+{
+ int ctrl_en_val = BIT(led_data->control_bank);
+ int ret;
+
+ ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
+ ctrl_en_val, ~ctrl_en_val);
+ if (ret) {
+ dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret);
+ return ret;
+ }
+
+ return regulator_disable(led_data->priv->regulator);
+}
+
+static int lm3532_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness brt_val)
+{
+ struct lm3532_led *led =
+ container_of(led_cdev, struct lm3532_led, led_dev);
+ u8 brightness_reg;
+ int ret;
+
+ mutex_lock(&led->priv->lock);
+
+ if (led->mode == LM3532_BL_MODE_ALS) {
+ if (brt_val > LED_OFF)
+ ret = lm3532_led_enable(led);
+ else
+ ret = lm3532_led_disable(led);
+
+ goto unlock;
+ }
+
+ if (brt_val == LED_OFF) {
+ ret = lm3532_led_disable(led);
+ goto unlock;
+ }
+
+ ret = lm3532_led_enable(led);
+ if (ret)
+ goto unlock;
+
+ brightness_reg = LM3532_REG_CTRL_A_BRT + led->control_bank * 2;
+ brt_val = brt_val / LM3532_BRT_VAL_ADJUST;
+
+ ret = regmap_write(led->priv->regmap, brightness_reg, brt_val);
+
+unlock:
+ mutex_unlock(&led->priv->lock);
+ return ret;
+}
+
+static int lm3532_init_registers(struct lm3532_led *led)
+{
+ struct lm3532_data *drvdata = led->priv;
+ unsigned int runtime_ramp_val;
+ unsigned int output_cfg_val = 0;
+ unsigned int output_cfg_shift = 0;
+ unsigned int output_cfg_mask = 0;
+ int ret, i;
+
+ for (i = 0; i < led->num_leds; i++) {
+ output_cfg_shift = led->led_strings[i] * 2;
+ output_cfg_val |= (led->control_bank << output_cfg_shift);
+ output_cfg_mask |= LM3532_OUTPUT_CFG_MASK << output_cfg_shift;
+ }
+
+ ret = regmap_update_bits(drvdata->regmap, LM3532_REG_OUTPUT_CFG,
+ output_cfg_mask, output_cfg_val);
+ if (ret)
+ return ret;
+
+ runtime_ramp_val = drvdata->runtime_ramp_up |
+ (drvdata->runtime_ramp_down << LM3532_RAMP_DOWN_SHIFT);
+
+ return regmap_write(drvdata->regmap, LM3532_REG_RT_RAMP,
+ runtime_ramp_val);
+}
+
+static int lm3532_als_configure(struct lm3532_data *priv,
+ struct lm3532_led *led)
+{
+ struct lm3532_als_data *als = priv->als_data;
+ u32 als_vmin, als_vmax, als_vstep;
+ int zone_reg = LM3532_REG_ZN_0_HI;
+ int brightnes_config_reg;
+ int ret;
+ int i;
+
+ als_vmin = als->als_vmin;
+ als_vmax = als->als_vmax;
+
+ als_vstep = (als_vmax - als_vmin) / ((LM3532_ALS_ZB_MAX + 1) * 2);
+
+ for (i = 0; i < LM3532_ALS_ZB_MAX; i++) {
+ als->zones_lo[i] = ((als_vmin + als_vstep + (i * als_vstep)) *
+ LED_FULL) / 1000;
+ als->zones_hi[i] = ((als_vmin + LM3532_ALS_OFFSET_mV +
+ als_vstep + (i * als_vstep)) * LED_FULL) / 1000;
+
+ zone_reg = LM3532_REG_ZN_0_HI + i * 2;
+ ret = regmap_write(priv->regmap, zone_reg, als->zones_lo[i]);
+ if (ret)
+ return ret;
+
+ zone_reg += 1;
+ ret = regmap_write(priv->regmap, zone_reg, als->zones_hi[i]);
+ if (ret)
+ return ret;
+ }
+
+ als->config = (als->als_avrg_time | (LM3532_ENABLE_ALS) |
+ (als->als_input_mode << LM3532_ALS_SEL_SHIFT));
+
+ ret = regmap_write(priv->regmap, LM3532_ALS_CONFIG, als->config);
+ if (ret)
+ return ret;
+
+ brightnes_config_reg = LM3532_REG_ZONE_CFG_A + led->control_bank * 2;
+
+ return regmap_update_bits(priv->regmap, brightnes_config_reg,
+ LM3532_I2C_CTRL, LM3532_ALS_CTRL);
+}
+
+static int lm3532_parse_als(struct lm3532_data *priv)
+{
+ struct lm3532_als_data *als;
+ int als_avg_time;
+ int als_impedance;
+ int ret;
+
+ als = devm_kzalloc(priv->dev, sizeof(*als), GFP_KERNEL);
+ if (als == NULL)
+ return -ENOMEM;
+
+ ret = device_property_read_u32(&priv->client->dev, "ti,als-vmin",
+ &als->als_vmin);
+ if (ret)
+ als->als_vmin = 0;
+
+ ret = device_property_read_u32(&priv->client->dev, "ti,als-vmax",
+ &als->als_vmax);
+ if (ret)
+ als->als_vmax = LM3532_ALS_WINDOW_mV;
+
+ if (als->als_vmax > LM3532_ALS_WINDOW_mV) {
+ ret = -EINVAL;
+ return ret;
+ }
+
+ ret = device_property_read_u32(&priv->client->dev, "ti,als1-imp-sel",
+ &als_impedance);
+ if (ret)
+ als->als1_imp_sel = 0;
+ else
+ als->als1_imp_sel = lm3532_get_als_imp_index(als_impedance);
+
+ ret = device_property_read_u32(&priv->client->dev, "ti,als2-imp-sel",
+ &als_impedance);
+ if (ret)
+ als->als2_imp_sel = 0;
+ else
+ als->als2_imp_sel = lm3532_get_als_imp_index(als_impedance);
+
+ ret = device_property_read_u32(&priv->client->dev, "ti,als-avrg-time-us",
+ &als_avg_time);
+ if (ret)
+ als->als_avrg_time = 0;
+ else
+ als->als_avrg_time = lm3532_get_als_avg_index(als_avg_time);
+
+ ret = device_property_read_u8(&priv->client->dev, "ti,als-input-mode",
+ &als->als_input_mode);
+ if (ret)
+ als->als_input_mode = 0;
+
+ if (als->als_input_mode > LM3532_BL_MODE_ALS) {
+ ret = -EINVAL;
+ return ret;
+ }
+
+ priv->als_data = als;
+
+ return ret;
+}
+
+static int lm3532_parse_node(struct lm3532_data *priv)
+{
+ struct fwnode_handle *child = NULL;
+ struct lm3532_led *led;
+ const char *name;
+ int control_bank;
+ u32 ramp_time;
+ size_t i = 0;
+ int ret;
+
+ priv->enable_gpio = devm_gpiod_get_optional(&priv->client->dev,
+ "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->enable_gpio))
+ priv->enable_gpio = NULL;
+
+ priv->regulator = devm_regulator_get(&priv->client->dev, "vin");
+ if (IS_ERR(priv->regulator))
+ priv->regulator = NULL;
+
+ ret = device_property_read_u32(&priv->client->dev, "ramp-up-us",
+ &ramp_time);
+ if (ret)
+ dev_info(&priv->client->dev, "ramp-up-ms property missing\n");
+ else
+ priv->runtime_ramp_up = lm3532_get_ramp_index(ramp_time);
+
+ ret = device_property_read_u32(&priv->client->dev, "ramp-down-us",
+ &ramp_time);
+ if (ret)
+ dev_info(&priv->client->dev, "ramp-down-ms property missing\n");
+ else
+ priv->runtime_ramp_down = lm3532_get_ramp_index(ramp_time);
+
+ device_for_each_child_node(priv->dev, child) {
+ led = &priv->leds[i];
+
+ ret = fwnode_property_read_u32(child, "reg", &control_bank);
+ if (ret) {
+ dev_err(&priv->client->dev, "reg property missing\n");
+ fwnode_handle_put(child);
+ goto child_out;
+ }
+
+ if (control_bank > LM3532_CONTROL_C) {
+ dev_err(&priv->client->dev, "Control bank invalid\n");
+ continue;
+ }
+
+ led->control_bank = control_bank;
+
+ ret = fwnode_property_read_u32(child, "ti,led-mode",
+ &led->mode);
+ if (ret) {
+ dev_err(&priv->client->dev, "ti,led-mode property missing\n");
+ fwnode_handle_put(child);
+ goto child_out;
+ }
+
+ if (led->mode == LM3532_BL_MODE_ALS) {
+ ret = lm3532_parse_als(priv);
+ if (ret)
+ dev_err(&priv->client->dev, "Failed to parse als\n");
+ else
+ lm3532_als_configure(priv, led);
+ }
+
+ led->num_leds = fwnode_property_read_u32_array(child,
+ "led-sources",
+ NULL, 0);
+
+ if (led->num_leds > LM3532_MAX_LED_STRINGS) {
+ dev_err(&priv->client->dev, "To many LED string defined\n");
+ continue;
+ }
+
+ ret = fwnode_property_read_u32_array(child, "led-sources",
+ led->led_strings,
+ led->num_leds);
+ if (ret) {
+ dev_err(&priv->client->dev, "led-sources property missing\n");
+ fwnode_handle_put(child);
+ goto child_out;
+ }
+
+ fwnode_property_read_string(child, "linux,default-trigger",
+ &led->led_dev.default_trigger);
+
+ ret = fwnode_property_read_string(child, "label", &name);
+ if (ret)
+ snprintf(led->label, sizeof(led->label),
+ "%s::", priv->client->name);
+ else
+ snprintf(led->label, sizeof(led->label),
+ "%s:%s", priv->client->name, name);
+
+ led->priv = priv;
+ led->led_dev.name = led->label;
+ led->led_dev.brightness_set_blocking = lm3532_brightness_set;
+
+ ret = devm_led_classdev_register(priv->dev, &led->led_dev);
+ if (ret) {
+ dev_err(&priv->client->dev, "led register err: %d\n",
+ ret);
+ fwnode_handle_put(child);
+ goto child_out;
+ }
+
+ lm3532_init_registers(led);
+
+ i++;
+ }
+
+child_out:
+ return ret;
+}
+
+static int lm3532_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm3532_data *drvdata;
+ int ret = 0;
+ int count;
+
+ count = device_get_child_node_count(&client->dev);
+ if (!count) {
+ dev_err(&client->dev, "LEDs are not defined in device tree!");
+ return -ENODEV;
+ }
+
+ drvdata = devm_kzalloc(&client->dev, struct_size(drvdata, leds, count),
+ GFP_KERNEL);
+ if (drvdata == NULL)
+ return -ENOMEM;
+
+ drvdata->client = client;
+ drvdata->dev = &client->dev;
+
+ drvdata->regmap = devm_regmap_init_i2c(client, &lm3532_regmap_config);
+ if (IS_ERR(drvdata->regmap)) {
+ ret = PTR_ERR(drvdata->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ mutex_init(&drvdata->lock);
+ i2c_set_clientdata(client, drvdata);
+
+ ret = lm3532_parse_node(drvdata);
+ if (ret) {
+ dev_err(&client->dev, "Failed to parse node\n");
+ return ret;
+ }
+
+ if (drvdata->enable_gpio)
+ gpiod_direction_output(drvdata->enable_gpio, 1);
+
+ return ret;
+}
+
+static int lm3532_remove(struct i2c_client *client)
+{
+ struct lm3532_data *drvdata = i2c_get_clientdata(client);
+
+ mutex_destroy(&drvdata->lock);
+
+ if (drvdata->enable_gpio)
+ gpiod_direction_output(drvdata->enable_gpio, 0);
+
+ return 0;
+}
+
+static const struct of_device_id of_lm3532_leds_match[] = {
+ { .compatible = "ti,lm3532", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_lm3532_leds_match);
+
+static const struct i2c_device_id lm3532_id[] = {
+ {LM3532_NAME, 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, lm3532_id);
+
+static struct i2c_driver lm3532_i2c_driver = {
+ .probe = lm3532_probe,
+ .remove = lm3532_remove,
+ .id_table = lm3532_id,
+ .driver = {
+ .name = LM3532_NAME,
+ .of_match_table = of_lm3532_leds_match,
+ },
+};
+module_i2c_driver(lm3532_i2c_driver);
+
+MODULE_DESCRIPTION("Back Light driver for LM3532");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// LED driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_LED_NUM_LEDS 3
+
+#define MAX77650_LED_A_BASE 0x40
+#define MAX77650_LED_B_BASE 0x43
+
+#define MAX77650_LED_BR_MASK GENMASK(4, 0)
+#define MAX77650_LED_EN_MASK GENMASK(7, 6)
+
+#define MAX77650_LED_MAX_BRIGHTNESS MAX77650_LED_BR_MASK
+
+/* Enable EN_LED_MSTR. */
+#define MAX77650_LED_TOP_DEFAULT BIT(0)
+
+#define MAX77650_LED_ENABLE GENMASK(7, 6)
+#define MAX77650_LED_DISABLE 0x00
+
+#define MAX77650_LED_A_DEFAULT MAX77650_LED_DISABLE
+/* 100% on duty */
+#define MAX77650_LED_B_DEFAULT GENMASK(3, 0)
+
+struct max77650_led {
+ struct led_classdev cdev;
+ struct regmap *map;
+ unsigned int regA;
+ unsigned int regB;
+};
+
+static struct max77650_led *max77650_to_led(struct led_classdev *cdev)
+{
+ return container_of(cdev, struct max77650_led, cdev);
+}
+
+static int max77650_led_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct max77650_led *led = max77650_to_led(cdev);
+ int val, mask;
+
+ mask = MAX77650_LED_BR_MASK | MAX77650_LED_EN_MASK;
+
+ if (brightness == LED_OFF)
+ val = MAX77650_LED_DISABLE;
+ else
+ val = MAX77650_LED_ENABLE | brightness;
+
+ return regmap_update_bits(led->map, led->regA, mask, val);
+}
+
+static int max77650_led_probe(struct platform_device *pdev)
+{
+ struct device_node *of_node, *child;
+ struct max77650_led *leds, *led;
+ struct device *parent;
+ struct device *dev;
+ struct regmap *map;
+ const char *label;
+ int rv, num_leds;
+ u32 reg;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+ of_node = dev->of_node;
+
+ if (!of_node)
+ return -ENODEV;
+
+ leds = devm_kcalloc(dev, sizeof(*leds),
+ MAX77650_LED_NUM_LEDS, GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ map = dev_get_regmap(dev->parent, NULL);
+ if (!map)
+ return -ENODEV;
+
+ num_leds = of_get_child_count(of_node);
+ if (!num_leds || num_leds > MAX77650_LED_NUM_LEDS)
+ return -ENODEV;
+
+ for_each_child_of_node(of_node, child) {
+ rv = of_property_read_u32(child, "reg", ®);
+ if (rv || reg >= MAX77650_LED_NUM_LEDS)
+ return -EINVAL;
+
+ led = &leds[reg];
+ led->map = map;
+ led->regA = MAX77650_LED_A_BASE + reg;
+ led->regB = MAX77650_LED_B_BASE + reg;
+ led->cdev.brightness_set_blocking = max77650_led_brightness_set;
+ led->cdev.max_brightness = MAX77650_LED_MAX_BRIGHTNESS;
+
+ label = of_get_property(child, "label", NULL);
+ if (!label) {
+ led->cdev.name = "max77650::";
+ } else {
+ led->cdev.name = devm_kasprintf(dev, GFP_KERNEL,
+ "max77650:%s", label);
+ if (!led->cdev.name)
+ return -ENOMEM;
+ }
+
+ of_property_read_string(child, "linux,default-trigger",
+ &led->cdev.default_trigger);
+
+ rv = devm_of_led_classdev_register(dev, child, &led->cdev);
+ if (rv)
+ return rv;
+
+ rv = regmap_write(map, led->regA, MAX77650_LED_A_DEFAULT);
+ if (rv)
+ return rv;
+
+ rv = regmap_write(map, led->regB, MAX77650_LED_B_DEFAULT);
+ if (rv)
+ return rv;
+ }
+
+ return regmap_write(map,
+ MAX77650_REG_CNFG_LED_TOP,
+ MAX77650_LED_TOP_DEFAULT);
+}
+
+static struct platform_driver max77650_led_driver = {
+ .driver = {
+ .name = "max77650-led",
+ },
+ .probe = max77650_led_probe,
+};
+module_platform_driver(max77650_led_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 LED driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
accessing the external gpio extender (LEDs & buttons) and
power supply alarms (hwmon).
+config MFD_ALTERA_SYSMGR
+ bool "Altera SOCFPGA System Manager"
+ depends on (ARCH_SOCFPGA || ARCH_STRATIX10) && OF
+ select MFD_SYSCON
+ help
+ Select this to get System Manager support for all Altera branded
+ SOCFPGAs. The SOCFPGA System Manager handles all SOCFPGAs by
+ using regmap_mmio accesses for ARM32 parts and SMC calls to
+ EL3 for ARM64 parts.
+
config MFD_ACT8945A
tristate "Active-semi ACT8945A"
select MFD_CORE
provides common support for accessing the device; additional drivers
must be enabled in order to use the functionality of the device.
+config MFD_MAX77650
+ tristate "Maxim MAX77650/77651 PMIC Support"
+ depends on I2C
+ depends on OF || COMPILE_TEST
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say Y here to add support for Maxim Semiconductor MAX77650 and
+ MAX77651 Power Management ICs. This is the core multifunction
+ driver for interacting with the device. The module name is
+ 'max77650'. Additional drivers can be enabled in order to use
+ the following functionalities of the device: GPIO, regulator,
+ charger, LED, onkey.
+
config MFD_MAX77686
tristate "Maxim Semiconductor MAX77686/802 PMIC Support"
depends on I2C
obj-$(CONFIG_MFD_MAX14577) += max14577.o
obj-$(CONFIG_MFD_MAX77620) += max77620.o
+obj-$(CONFIG_MFD_MAX77650) += max77650.o
obj-$(CONFIG_MFD_MAX77686) += max77686.o
obj-$(CONFIG_MFD_MAX77693) += max77693.o
obj-$(CONFIG_MFD_MAX77843) += max77843.o
obj-$(CONFIG_MFD_MT6397) += mt6397-core.o
obj-$(CONFIG_MFD_ALTERA_A10SR) += altera-a10sr.o
+obj-$(CONFIG_MFD_ALTERA_SYSMGR) += altera-sysmgr.o
obj-$(CONFIG_MFD_STPMIC1) += stpmic1.o
obj-$(CONFIG_MFD_SUN4I_GPADC) += sun4i-gpadc.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2019, Intel Corporation.
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ *
+ * Based on syscon driver.
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/mfd/altera-sysmgr.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+/**
+ * struct altr_sysmgr - Altera SOCFPGA System Manager
+ * @regmap: the regmap used for System Manager accesses.
+ * @base : the base address for the System Manager
+ */
+struct altr_sysmgr {
+ struct regmap *regmap;
+ resource_size_t *base;
+};
+
+static struct platform_driver altr_sysmgr_driver;
+
+/**
+ * s10_protected_reg_write
+ * Write to a protected SMC register.
+ * @base: Base address of System Manager
+ * @reg: Address offset of register
+ * @val: Value to write
+ * Return: INTEL_SIP_SMC_STATUS_OK (0) on success
+ * INTEL_SIP_SMC_REG_ERROR on error
+ * INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION if not supported
+ */
+static int s10_protected_reg_write(void *base,
+ unsigned int reg, unsigned int val)
+{
+ struct arm_smccc_res result;
+ unsigned long sysmgr_base = (unsigned long)base;
+
+ arm_smccc_smc(INTEL_SIP_SMC_REG_WRITE, sysmgr_base + reg,
+ val, 0, 0, 0, 0, 0, &result);
+
+ return (int)result.a0;
+}
+
+/**
+ * s10_protected_reg_read
+ * Read the status of a protected SMC register
+ * @base: Base address of System Manager.
+ * @reg: Address of register
+ * @val: Value read.
+ * Return: INTEL_SIP_SMC_STATUS_OK (0) on success
+ * INTEL_SIP_SMC_REG_ERROR on error
+ * INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION if not supported
+ */
+static int s10_protected_reg_read(void *base,
+ unsigned int reg, unsigned int *val)
+{
+ struct arm_smccc_res result;
+ unsigned long sysmgr_base = (unsigned long)base;
+
+ arm_smccc_smc(INTEL_SIP_SMC_REG_READ, sysmgr_base + reg,
+ 0, 0, 0, 0, 0, 0, &result);
+
+ *val = (unsigned int)result.a1;
+
+ return (int)result.a0;
+}
+
+static struct regmap_config altr_sysmgr_regmap_cfg = {
+ .name = "altr_sysmgr",
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .fast_io = true,
+ .use_single_read = true,
+ .use_single_write = true,
+};
+
+/**
+ * sysmgr_match_phandle
+ * Matching function used by driver_find_device().
+ * Return: True if match is found, otherwise false.
+ */
+static int sysmgr_match_phandle(struct device *dev, void *data)
+{
+ return dev->of_node == (struct device_node *)data;
+}
+
+/**
+ * altr_sysmgr_regmap_lookup_by_phandle
+ * Find the sysmgr previous configured in probe() and return regmap property.
+ * Return: regmap if found or error if not found.
+ */
+struct regmap *altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np,
+ const char *property)
+{
+ struct device *dev;
+ struct altr_sysmgr *sysmgr;
+ struct device_node *sysmgr_np;
+
+ if (property)
+ sysmgr_np = of_parse_phandle(np, property, 0);
+ else
+ sysmgr_np = np;
+
+ if (!sysmgr_np)
+ return ERR_PTR(-ENODEV);
+
+ dev = driver_find_device(&altr_sysmgr_driver.driver, NULL,
+ (void *)sysmgr_np, sysmgr_match_phandle);
+ of_node_put(sysmgr_np);
+ if (!dev)
+ return ERR_PTR(-EPROBE_DEFER);
+
+ sysmgr = dev_get_drvdata(dev);
+
+ return sysmgr->regmap;
+}
+EXPORT_SYMBOL_GPL(altr_sysmgr_regmap_lookup_by_phandle);
+
+static int sysmgr_probe(struct platform_device *pdev)
+{
+ struct altr_sysmgr *sysmgr;
+ struct regmap *regmap;
+ struct resource *res;
+ struct regmap_config sysmgr_config = altr_sysmgr_regmap_cfg;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+
+ sysmgr = devm_kzalloc(dev, sizeof(*sysmgr), GFP_KERNEL);
+ if (!sysmgr)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOENT;
+
+ sysmgr_config.max_register = resource_size(res) -
+ sysmgr_config.reg_stride;
+ if (of_device_is_compatible(np, "altr,sys-mgr-s10")) {
+ /* Need physical address for SMCC call */
+ sysmgr->base = (resource_size_t *)res->start;
+ sysmgr_config.reg_read = s10_protected_reg_read;
+ sysmgr_config.reg_write = s10_protected_reg_write;
+
+ regmap = devm_regmap_init(dev, NULL, sysmgr->base,
+ &sysmgr_config);
+ } else {
+ sysmgr->base = devm_ioremap(dev, res->start,
+ resource_size(res));
+ if (!sysmgr->base)
+ return -ENOMEM;
+
+ sysmgr_config.max_register = res->end - res->start - 3;
+ regmap = devm_regmap_init_mmio(dev, sysmgr->base,
+ &sysmgr_config);
+ }
+
+ if (IS_ERR(regmap)) {
+ pr_err("regmap init failed\n");
+ return PTR_ERR(regmap);
+ }
+
+ sysmgr->regmap = regmap;
+
+ platform_set_drvdata(pdev, sysmgr);
+
+ return 0;
+}
+
+static const struct of_device_id altr_sysmgr_of_match[] = {
+ { .compatible = "altr,sys-mgr" },
+ { .compatible = "altr,sys-mgr-s10" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, altr_sysmgr_of_match);
+
+static struct platform_driver altr_sysmgr_driver = {
+ .probe = sysmgr_probe,
+ .driver = {
+ .name = "altr,system_manager",
+ .of_match_table = altr_sysmgr_of_match,
+ },
+};
+
+static int __init altr_sysmgr_init(void)
+{
+ return platform_driver_register(&altr_sysmgr_driver);
+}
+core_initcall(altr_sysmgr_init);
+
+static void __exit altr_sysmgr_exit(void)
+{
+ platform_driver_unregister(&altr_sysmgr_driver);
+}
+module_exit(altr_sysmgr_exit);
+
+MODULE_AUTHOR("Thor Thayer <>");
+MODULE_DESCRIPTION("SOCFPGA System Manager driver");
+MODULE_LICENSE("GPL v2");
#include <linux/regmap.h>
#include <linux/slab.h>
+static struct max77620_chip *max77620_scratch;
+
static const struct resource gpio_resources[] = {
DEFINE_RES_IRQ(MAX77620_IRQ_TOP_GPIO),
};
},
};
+static const struct mfd_cell max77663_children[] = {
+ { .name = "max77620-pinctrl", },
+ { .name = "max77620-clock", },
+ { .name = "max77663-pmic", },
+ { .name = "max77620-watchdog", },
+ {
+ .name = "max77620-gpio",
+ .resources = gpio_resources,
+ .num_resources = ARRAY_SIZE(gpio_resources),
+ }, {
+ .name = "max77620-rtc",
+ .resources = rtc_resources,
+ .num_resources = ARRAY_SIZE(rtc_resources),
+ }, {
+ .name = "max77663-power",
+ .resources = power_resources,
+ .num_resources = ARRAY_SIZE(power_resources),
+ },
+};
+
static const struct regmap_range max77620_readable_ranges[] = {
regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_DVSSD4),
};
.volatile_table = &max77620_volatile_table,
};
+static const struct regmap_range max77663_readable_ranges[] = {
+ regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_CID5),
+};
+
+static const struct regmap_access_table max77663_readable_table = {
+ .yes_ranges = max77663_readable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(max77663_readable_ranges),
+};
+
+static const struct regmap_range max77663_writable_ranges[] = {
+ regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_CID5),
+};
+
+static const struct regmap_access_table max77663_writable_table = {
+ .yes_ranges = max77663_writable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(max77663_writable_ranges),
+};
+
+static const struct regmap_config max77663_regmap_config = {
+ .name = "power-slave",
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77620_REG_CID5 + 1,
+ .cache_type = REGCACHE_RBTREE,
+ .rd_table = &max77663_readable_table,
+ .wr_table = &max77663_writable_table,
+ .volatile_table = &max77620_volatile_table,
+};
+
/*
* MAX77620 and MAX20024 has the following steps of the interrupt handling
* for TOP interrupts:
case MAX77620:
fps_min_period = MAX77620_FPS_PERIOD_MIN_US;
break;
+ case MAX77663:
+ fps_min_period = MAX20024_FPS_PERIOD_MIN_US;
+ break;
default:
return -EINVAL;
}
case MAX77620:
fps_max_period = MAX77620_FPS_PERIOD_MAX_US;
break;
+ case MAX77663:
+ fps_max_period = MAX20024_FPS_PERIOD_MAX_US;
+ break;
default:
return -EINVAL;
}
}
skip_fps:
+ if (chip->chip_id == MAX77663)
+ return 0;
+
/* Enable wake on EN0 pin */
ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
MAX77620_ONOFFCNFG2_WK_EN0,
return ret;
}
+static void max77620_pm_power_off(void)
+{
+ struct max77620_chip *chip = max77620_scratch;
+
+ regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG1,
+ MAX77620_ONOFFCNFG1_SFT_RST,
+ MAX77620_ONOFFCNFG1_SFT_RST);
+}
+
static int max77620_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct max77620_chip *chip;
const struct mfd_cell *mfd_cells;
int n_mfd_cells;
+ bool pm_off;
int ret;
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
n_mfd_cells = ARRAY_SIZE(max20024_children);
rmap_config = &max20024_regmap_config;
break;
+ case MAX77663:
+ mfd_cells = max77663_children;
+ n_mfd_cells = ARRAY_SIZE(max77663_children);
+ rmap_config = &max77663_regmap_config;
+ break;
default:
dev_err(chip->dev, "ChipID is invalid %d\n", chip->chip_id);
return -EINVAL;
return ret;
}
+ pm_off = of_device_is_system_power_controller(client->dev.of_node);
+ if (pm_off && !pm_power_off) {
+ max77620_scratch = chip;
+ pm_power_off = max77620_pm_power_off;
+ }
+
return 0;
}
return ret;
}
+ if (chip->chip_id == MAX77663)
+ goto out;
+
/* Disable WK_EN0 */
ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
MAX77620_ONOFFCNFG2_WK_EN0, 0);
* For MAX20024: No need to configure WKEN0 on resume as
* it is configured on Init.
*/
- if (chip->chip_id == MAX20024)
+ if (chip->chip_id == MAX20024 || chip->chip_id == MAX77663)
goto out;
/* Enable WK_EN0 */
static const struct i2c_device_id max77620_id[] = {
{"max77620", MAX77620},
{"max20024", MAX20024},
+ {"max77663", MAX77663},
{},
};
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// Core MFD driver for MAXIM 77650/77651 charger/power-supply.
+// Programming manual: https://pdfserv.maximintegrated.com/en/an/AN6428.pdf
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#define MAX77650_INT_GPI_F_MSK BIT(0)
+#define MAX77650_INT_GPI_R_MSK BIT(1)
+#define MAX77650_INT_GPI_MSK \
+ (MAX77650_INT_GPI_F_MSK | MAX77650_INT_GPI_R_MSK)
+#define MAX77650_INT_nEN_F_MSK BIT(2)
+#define MAX77650_INT_nEN_R_MSK BIT(3)
+#define MAX77650_INT_TJAL1_R_MSK BIT(4)
+#define MAX77650_INT_TJAL2_R_MSK BIT(5)
+#define MAX77650_INT_DOD_R_MSK BIT(6)
+
+#define MAX77650_INT_THM_MSK BIT(0)
+#define MAX77650_INT_CHG_MSK BIT(1)
+#define MAX77650_INT_CHGIN_MSK BIT(2)
+#define MAX77650_INT_TJ_REG_MSK BIT(3)
+#define MAX77650_INT_CHGIN_CTRL_MSK BIT(4)
+#define MAX77650_INT_SYS_CTRL_MSK BIT(5)
+#define MAX77650_INT_SYS_CNFG_MSK BIT(6)
+
+#define MAX77650_INT_GLBL_OFFSET 0
+#define MAX77650_INT_CHG_OFFSET 1
+
+#define MAX77650_SBIA_LPM_MASK BIT(5)
+#define MAX77650_SBIA_LPM_DISABLED 0x00
+
+enum {
+ MAX77650_INT_GPI,
+ MAX77650_INT_nEN_F,
+ MAX77650_INT_nEN_R,
+ MAX77650_INT_TJAL1_R,
+ MAX77650_INT_TJAL2_R,
+ MAX77650_INT_DOD_R,
+ MAX77650_INT_THM,
+ MAX77650_INT_CHG,
+ MAX77650_INT_CHGIN,
+ MAX77650_INT_TJ_REG,
+ MAX77650_INT_CHGIN_CTRL,
+ MAX77650_INT_SYS_CTRL,
+ MAX77650_INT_SYS_CNFG,
+};
+
+static const struct resource max77650_charger_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHG, "CHG"),
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_CHGIN, "CHGIN"),
+};
+
+static const struct resource max77650_gpio_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_GPI, "GPI"),
+};
+
+static const struct resource max77650_onkey_resources[] = {
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_F, "nEN_F"),
+ DEFINE_RES_IRQ_NAMED(MAX77650_INT_nEN_R, "nEN_R"),
+};
+
+static const struct mfd_cell max77650_cells[] = {
+ {
+ .name = "max77650-regulator",
+ .of_compatible = "maxim,max77650-regulator",
+ }, {
+ .name = "max77650-charger",
+ .of_compatible = "maxim,max77650-charger",
+ .resources = max77650_charger_resources,
+ .num_resources = ARRAY_SIZE(max77650_charger_resources),
+ }, {
+ .name = "max77650-gpio",
+ .of_compatible = "maxim,max77650-gpio",
+ .resources = max77650_gpio_resources,
+ .num_resources = ARRAY_SIZE(max77650_gpio_resources),
+ }, {
+ .name = "max77650-led",
+ .of_compatible = "maxim,max77650-led",
+ }, {
+ .name = "max77650-onkey",
+ .of_compatible = "maxim,max77650-onkey",
+ .resources = max77650_onkey_resources,
+ .num_resources = ARRAY_SIZE(max77650_onkey_resources),
+ },
+};
+
+static const struct regmap_irq max77650_irqs[] = {
+ [MAX77650_INT_GPI] = {
+ .reg_offset = MAX77650_INT_GLBL_OFFSET,
+ .mask = MAX77650_INT_GPI_MSK,
+ .type = {
+ .type_falling_val = MAX77650_INT_GPI_F_MSK,
+ .type_rising_val = MAX77650_INT_GPI_R_MSK,
+ .types_supported = IRQ_TYPE_EDGE_BOTH,
+ },
+ },
+ REGMAP_IRQ_REG(MAX77650_INT_nEN_F,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_F_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_nEN_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_nEN_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJAL1_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL1_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJAL2_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_TJAL2_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_DOD_R,
+ MAX77650_INT_GLBL_OFFSET, MAX77650_INT_DOD_R_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_THM,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_THM_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHG_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHGIN,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_TJ_REG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_TJ_REG_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_CHGIN_CTRL,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_CHGIN_CTRL_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_SYS_CTRL,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CTRL_MSK),
+ REGMAP_IRQ_REG(MAX77650_INT_SYS_CNFG,
+ MAX77650_INT_CHG_OFFSET, MAX77650_INT_SYS_CNFG_MSK),
+};
+
+static const struct regmap_irq_chip max77650_irq_chip = {
+ .name = "max77650-irq",
+ .irqs = max77650_irqs,
+ .num_irqs = ARRAY_SIZE(max77650_irqs),
+ .num_regs = 2,
+ .status_base = MAX77650_REG_INT_GLBL,
+ .mask_base = MAX77650_REG_INTM_GLBL,
+ .type_in_mask = true,
+ .type_invert = true,
+ .init_ack_masked = true,
+ .clear_on_unmask = true,
+};
+
+static const struct regmap_config max77650_regmap_config = {
+ .name = "max77650",
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int max77650_i2c_probe(struct i2c_client *i2c)
+{
+ struct regmap_irq_chip_data *irq_data;
+ struct device *dev = &i2c->dev;
+ struct irq_domain *domain;
+ struct regmap *map;
+ unsigned int val;
+ int rv, id;
+
+ map = devm_regmap_init_i2c(i2c, &max77650_regmap_config);
+ if (IS_ERR(map)) {
+ dev_err(dev, "Unable to initialise I2C Regmap\n");
+ return PTR_ERR(map);
+ }
+
+ rv = regmap_read(map, MAX77650_REG_CID, &val);
+ if (rv) {
+ dev_err(dev, "Unable to read Chip ID\n");
+ return rv;
+ }
+
+ id = MAX77650_CID_BITS(val);
+ switch (id) {
+ case MAX77650_CID_77650A:
+ case MAX77650_CID_77650C:
+ case MAX77650_CID_77651A:
+ case MAX77650_CID_77651B:
+ break;
+ default:
+ dev_err(dev, "Chip not supported - ID: 0x%02x\n", id);
+ return -ENODEV;
+ }
+
+ /*
+ * This IC has a low-power mode which reduces the quiescent current
+ * consumption to ~5.6uA but is only suitable for systems consuming
+ * less than ~2mA. Since this is not likely the case even on
+ * linux-based wearables - keep the chip in normal power mode.
+ */
+ rv = regmap_update_bits(map,
+ MAX77650_REG_CNFG_GLBL,
+ MAX77650_SBIA_LPM_MASK,
+ MAX77650_SBIA_LPM_DISABLED);
+ if (rv) {
+ dev_err(dev, "Unable to change the power mode\n");
+ return rv;
+ }
+
+ rv = devm_regmap_add_irq_chip(dev, map, i2c->irq,
+ IRQF_ONESHOT | IRQF_SHARED, 0,
+ &max77650_irq_chip, &irq_data);
+ if (rv) {
+ dev_err(dev, "Unable to add Regmap IRQ chip\n");
+ return rv;
+ }
+
+ domain = regmap_irq_get_domain(irq_data);
+
+ return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+ max77650_cells, ARRAY_SIZE(max77650_cells),
+ NULL, 0, domain);
+}
+
+static const struct of_device_id max77650_of_match[] = {
+ { .compatible = "maxim,max77650" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max77650_of_match);
+
+static struct i2c_driver max77650_i2c_driver = {
+ .driver = {
+ .name = "max77650",
+ .of_match_table = of_match_ptr(max77650_of_match),
+ },
+ .probe_new = max77650_i2c_probe,
+};
+module_i2c_driver(max77650_i2c_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 multi-function core driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
return ret;
}
+/**
+ * mfd_add_devices - register child devices
+ *
+ * @parent: Pointer to parent device.
+ * @id: Can be PLATFORM_DEVID_AUTO to let the Platform API take care
+ * of device numbering, or will be added to a device's cell_id.
+ * @cells: Array of (struct mfd_cell)s describing child devices.
+ * @n_devs: Number of child devices to register.
+ * @mem_base: Parent register range resource for child devices.
+ * @irq_base: Base of the range of virtual interrupt numbers allocated for
+ * this MFD device. Unused if @domain is specified.
+ * @domain: Interrupt domain to create mappings for hardware interrupts.
+ */
int mfd_add_devices(struct device *parent, int id,
const struct mfd_cell *cells, int n_devs,
struct resource *mem_base,
gpiod_set_value(lmu->en_gpio, 0);
}
-static const struct mfd_cell lm3532_devices[] = {
- {
- .name = "ti-lmu-backlight",
- .id = LM3532,
- .of_compatible = "ti,lm3532-backlight",
- },
-};
-
#define LM363X_REGULATOR(_id) \
{ \
.name = "lm363x-regulator", \
.max_register = max_reg, \
} \
-TI_LMU_DATA(lm3532, LM3532_MAX_REG);
TI_LMU_DATA(lm3631, LM3631_MAX_REG);
TI_LMU_DATA(lm3632, LM3632_MAX_REG);
TI_LMU_DATA(lm3633, LM3633_MAX_REG);
}
static const struct of_device_id ti_lmu_of_match[] = {
- { .compatible = "ti,lm3532", .data = &lm3532_data },
{ .compatible = "ti,lm3631", .data = &lm3631_data },
{ .compatible = "ti,lm3632", .data = &lm3632_data },
{ .compatible = "ti,lm3633", .data = &lm3633_data },
MODULE_DEVICE_TABLE(of, ti_lmu_of_match);
static const struct i2c_device_id ti_lmu_ids[] = {
- { "lm3532", LM3532 },
{ "lm3631", LM3631 },
{ "lm3632", LM3632 },
{ "lm3633", LM3633 },
* Adopted from dwmac-sti.c
*/
-#include <linux/mfd/syscon.h>
+#include <linux/mfd/altera-sysmgr.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_net.h>
dwmac->interface = of_get_phy_mode(np);
- sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
+ sys_mgr_base_addr =
+ altr_sysmgr_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
if (IS_ERR(sys_mgr_base_addr)) {
dev_info(dev, "No sysmgr-syscon node found\n");
return PTR_ERR(sys_mgr_base_addr);
Revision 1.2 and can be found e.g. in Kindle 4/5th generation
readers and certain LG devices.
+config CHARGER_MAX77650
+ tristate "Maxim MAX77650 battery charger driver"
+ depends on MFD_MAX77650
+ help
+ Say Y to enable support for the battery charger control of MAX77650
+ PMICs.
+
config CHARGER_MAX77693
tristate "Maxim MAX77693 battery charger driver"
depends on MFD_MAX77693
obj-$(CONFIG_CHARGER_LTC3651) += ltc3651-charger.o
obj-$(CONFIG_CHARGER_MAX14577) += max14577_charger.o
obj-$(CONFIG_CHARGER_DETECTOR_MAX14656) += max14656_charger_detector.o
+obj-$(CONFIG_CHARGER_MAX77650) += max77650-charger.o
obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// Battery charger driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+
+#define MAX77650_CHARGER_ENABLED BIT(0)
+#define MAX77650_CHARGER_DISABLED 0x00
+#define MAX77650_CHARGER_CHG_EN_MASK BIT(0)
+
+#define MAX77650_CHG_DETAILS_MASK GENMASK(7, 4)
+#define MAX77650_CHG_DETAILS_BITS(_reg) \
+ (((_reg) & MAX77650_CHG_DETAILS_MASK) >> 4)
+
+/* Charger is OFF. */
+#define MAX77650_CHG_OFF 0x00
+/* Charger is in prequalification mode. */
+#define MAX77650_CHG_PREQ 0x01
+/* Charger is in fast-charge constant current mode. */
+#define MAX77650_CHG_ON_CURR 0x02
+/* Charger is in JEITA modified fast-charge constant-current mode. */
+#define MAX77650_CHG_ON_CURR_JEITA 0x03
+/* Charger is in fast-charge constant-voltage mode. */
+#define MAX77650_CHG_ON_VOLT 0x04
+/* Charger is in JEITA modified fast-charge constant-voltage mode. */
+#define MAX77650_CHG_ON_VOLT_JEITA 0x05
+/* Charger is in top-off mode. */
+#define MAX77650_CHG_ON_TOPOFF 0x06
+/* Charger is in JEITA modified top-off mode. */
+#define MAX77650_CHG_ON_TOPOFF_JEITA 0x07
+/* Charger is done. */
+#define MAX77650_CHG_DONE 0x08
+/* Charger is JEITA modified done. */
+#define MAX77650_CHG_DONE_JEITA 0x09
+/* Charger is suspended due to a prequalification timer fault. */
+#define MAX77650_CHG_SUSP_PREQ_TIM_FAULT 0x0a
+/* Charger is suspended due to a fast-charge timer fault. */
+#define MAX77650_CHG_SUSP_FAST_CHG_TIM_FAULT 0x0b
+/* Charger is suspended due to a battery temperature fault. */
+#define MAX77650_CHG_SUSP_BATT_TEMP_FAULT 0x0c
+
+#define MAX77650_CHGIN_DETAILS_MASK GENMASK(3, 2)
+#define MAX77650_CHGIN_DETAILS_BITS(_reg) \
+ (((_reg) & MAX77650_CHGIN_DETAILS_MASK) >> 2)
+
+#define MAX77650_CHGIN_UNDERVOLTAGE_LOCKOUT 0x00
+#define MAX77650_CHGIN_OVERVOLTAGE_LOCKOUT 0x01
+#define MAX77650_CHGIN_OKAY 0x11
+
+#define MAX77650_CHARGER_CHG_MASK BIT(1)
+#define MAX77650_CHARGER_CHG_CHARGING(_reg) \
+ (((_reg) & MAX77650_CHARGER_CHG_MASK) > 1)
+
+#define MAX77650_CHARGER_VCHGIN_MIN_MASK 0xc0
+#define MAX77650_CHARGER_VCHGIN_MIN_SHIFT(_val) ((_val) << 5)
+
+#define MAX77650_CHARGER_ICHGIN_LIM_MASK 0x1c
+#define MAX77650_CHARGER_ICHGIN_LIM_SHIFT(_val) ((_val) << 2)
+
+struct max77650_charger_data {
+ struct regmap *map;
+ struct device *dev;
+};
+
+static enum power_supply_property max77650_charger_properties[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CHARGE_TYPE
+};
+
+static const unsigned int max77650_charger_vchgin_min_table[] = {
+ 4000000, 4100000, 4200000, 4300000, 4400000, 4500000, 4600000, 4700000
+};
+
+static const unsigned int max77650_charger_ichgin_lim_table[] = {
+ 95000, 190000, 285000, 380000, 475000
+};
+
+static int max77650_charger_set_vchgin_min(struct max77650_charger_data *chg,
+ unsigned int val)
+{
+ int i, rv;
+
+ for (i = 0; i < ARRAY_SIZE(max77650_charger_vchgin_min_table); i++) {
+ if (val == max77650_charger_vchgin_min_table[i]) {
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_VCHGIN_MIN_MASK,
+ MAX77650_CHARGER_VCHGIN_MIN_SHIFT(i));
+ if (rv)
+ return rv;
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int max77650_charger_set_ichgin_lim(struct max77650_charger_data *chg,
+ unsigned int val)
+{
+ int i, rv;
+
+ for (i = 0; i < ARRAY_SIZE(max77650_charger_ichgin_lim_table); i++) {
+ if (val == max77650_charger_ichgin_lim_table[i]) {
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_ICHGIN_LIM_MASK,
+ MAX77650_CHARGER_ICHGIN_LIM_SHIFT(i));
+ if (rv)
+ return rv;
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int max77650_charger_enable(struct max77650_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_CHG_EN_MASK,
+ MAX77650_CHARGER_ENABLED);
+ if (rv)
+ dev_err(chg->dev, "unable to enable the charger: %d\n", rv);
+
+ return rv;
+}
+
+static int max77650_charger_disable(struct max77650_charger_data *chg)
+{
+ int rv;
+
+ rv = regmap_update_bits(chg->map,
+ MAX77650_REG_CNFG_CHG_B,
+ MAX77650_CHARGER_CHG_EN_MASK,
+ MAX77650_CHARGER_DISABLED);
+ if (rv)
+ dev_err(chg->dev, "unable to disable the charger: %d\n", rv);
+
+ return rv;
+}
+
+static irqreturn_t max77650_charger_check_status(int irq, void *data)
+{
+ struct max77650_charger_data *chg = data;
+ int rv, reg;
+
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv) {
+ dev_err(chg->dev,
+ "unable to read the charger status: %d\n", rv);
+ return IRQ_HANDLED;
+ }
+
+ switch (MAX77650_CHGIN_DETAILS_BITS(reg)) {
+ case MAX77650_CHGIN_UNDERVOLTAGE_LOCKOUT:
+ dev_err(chg->dev, "undervoltage lockout detected, disabling charger\n");
+ max77650_charger_disable(chg);
+ break;
+ case MAX77650_CHGIN_OVERVOLTAGE_LOCKOUT:
+ dev_err(chg->dev, "overvoltage lockout detected, disabling charger\n");
+ max77650_charger_disable(chg);
+ break;
+ case MAX77650_CHGIN_OKAY:
+ max77650_charger_enable(chg);
+ break;
+ default:
+ /* May be 0x10 - debouncing */
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int max77650_charger_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct max77650_charger_data *chg = power_supply_get_drvdata(psy);
+ int rv, reg;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ if (MAX77650_CHARGER_CHG_CHARGING(reg)) {
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ }
+
+ switch (MAX77650_CHG_DETAILS_BITS(reg)) {
+ case MAX77650_CHG_OFF:
+ case MAX77650_CHG_SUSP_PREQ_TIM_FAULT:
+ case MAX77650_CHG_SUSP_FAST_CHG_TIM_FAULT:
+ case MAX77650_CHG_SUSP_BATT_TEMP_FAULT:
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case MAX77650_CHG_PREQ:
+ case MAX77650_CHG_ON_CURR:
+ case MAX77650_CHG_ON_CURR_JEITA:
+ case MAX77650_CHG_ON_VOLT:
+ case MAX77650_CHG_ON_VOLT_JEITA:
+ case MAX77650_CHG_ON_TOPOFF:
+ case MAX77650_CHG_ON_TOPOFF_JEITA:
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ break;
+ case MAX77650_CHG_DONE:
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+ }
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ val->intval = MAX77650_CHARGER_CHG_CHARGING(reg);
+ break;
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ rv = regmap_read(chg->map, MAX77650_REG_STAT_CHG_B, ®);
+ if (rv)
+ return rv;
+
+ if (!MAX77650_CHARGER_CHG_CHARGING(reg)) {
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE;
+ break;
+ }
+
+ switch (MAX77650_CHG_DETAILS_BITS(reg)) {
+ case MAX77650_CHG_PREQ:
+ case MAX77650_CHG_ON_CURR:
+ case MAX77650_CHG_ON_CURR_JEITA:
+ case MAX77650_CHG_ON_VOLT:
+ case MAX77650_CHG_ON_VOLT_JEITA:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
+ break;
+ case MAX77650_CHG_ON_TOPOFF:
+ case MAX77650_CHG_ON_TOPOFF_JEITA:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct power_supply_desc max77650_battery_desc = {
+ .name = "max77650",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .get_property = max77650_charger_get_property,
+ .properties = max77650_charger_properties,
+ .num_properties = ARRAY_SIZE(max77650_charger_properties),
+};
+
+static int max77650_charger_probe(struct platform_device *pdev)
+{
+ struct power_supply_config pscfg = {};
+ struct max77650_charger_data *chg;
+ struct power_supply *battery;
+ struct device *dev, *parent;
+ int rv, chg_irq, chgin_irq;
+ unsigned int prop;
+
+ dev = &pdev->dev;
+ parent = dev->parent;
+
+ chg = devm_kzalloc(dev, sizeof(*chg), GFP_KERNEL);
+ if (!chg)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, chg);
+
+ chg->map = dev_get_regmap(parent, NULL);
+ if (!chg->map)
+ return -ENODEV;
+
+ chg->dev = dev;
+
+ pscfg.of_node = dev->of_node;
+ pscfg.drv_data = chg;
+
+ chg_irq = platform_get_irq_byname(pdev, "CHG");
+ if (chg_irq < 0)
+ return chg_irq;
+
+ chgin_irq = platform_get_irq_byname(pdev, "CHGIN");
+ if (chgin_irq < 0)
+ return chgin_irq;
+
+ rv = devm_request_any_context_irq(dev, chg_irq,
+ max77650_charger_check_status,
+ IRQF_ONESHOT, "chg", chg);
+ if (rv < 0)
+ return rv;
+
+ rv = devm_request_any_context_irq(dev, chgin_irq,
+ max77650_charger_check_status,
+ IRQF_ONESHOT, "chgin", chg);
+ if (rv < 0)
+ return rv;
+
+ battery = devm_power_supply_register(dev,
+ &max77650_battery_desc, &pscfg);
+ if (IS_ERR(battery))
+ return PTR_ERR(battery);
+
+ rv = of_property_read_u32(dev->of_node,
+ "input-voltage-min-microvolt", &prop);
+ if (rv == 0) {
+ rv = max77650_charger_set_vchgin_min(chg, prop);
+ if (rv)
+ return rv;
+ }
+
+ rv = of_property_read_u32(dev->of_node,
+ "input-current-limit-microamp", &prop);
+ if (rv == 0) {
+ rv = max77650_charger_set_ichgin_lim(chg, prop);
+ if (rv)
+ return rv;
+ }
+
+ return max77650_charger_enable(chg);
+}
+
+static int max77650_charger_remove(struct platform_device *pdev)
+{
+ struct max77650_charger_data *chg = platform_get_drvdata(pdev);
+
+ return max77650_charger_disable(chg);
+}
+
+static struct platform_driver max77650_charger_driver = {
+ .driver = {
+ .name = "max77650-charger",
+ },
+ .probe = max77650_charger_probe,
+ .remove = max77650_charger_remove,
+};
+module_platform_driver(max77650_charger_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 charger driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018-2019 Intel Corporation
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ */
+
+#ifndef __LINUX_MFD_ALTERA_SYSMGR_H__
+#define __LINUX_MFD_ALTERA_SYSMGR_H__
+
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/firmware/intel/stratix10-smc.h>
+
+struct device_node;
+
+#ifdef CONFIG_MFD_ALTERA_SYSMGR
+struct regmap *altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np,
+ const char *property);
+#else
+static inline struct regmap *
+altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np,
+ const char *property)
+{
+ return ERR_PTR(-ENOTSUPP);
+}
+#endif
+
+#endif /* __LINUX_MFD_ALTERA_SYSMGR_H__ */
#define MAX77620_FPS_PERIOD_MIN_US 40
#define MAX20024_FPS_PERIOD_MIN_US 20
-#define MAX77620_FPS_PERIOD_MAX_US 2560
-#define MAX20024_FPS_PERIOD_MAX_US 5120
+#define MAX20024_FPS_PERIOD_MAX_US 2560
+#define MAX77620_FPS_PERIOD_MAX_US 5120
#define MAX77620_REG_FPS_GPIO1 0x54
#define MAX77620_REG_FPS_GPIO2 0x55
enum max77620_chip_id {
MAX77620,
MAX20024,
+ MAX77663,
};
struct max77620_chip {
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 BayLibre SAS
+ * Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+ *
+ * Common definitions for MAXIM 77650/77651 charger/power-supply.
+ */
+
+#ifndef MAX77650_H
+#define MAX77650_H
+
+#include <linux/bits.h>
+
+#define MAX77650_REG_INT_GLBL 0x00
+#define MAX77650_REG_INT_CHG 0x01
+#define MAX77650_REG_STAT_CHG_A 0x02
+#define MAX77650_REG_STAT_CHG_B 0x03
+#define MAX77650_REG_ERCFLAG 0x04
+#define MAX77650_REG_STAT_GLBL 0x05
+#define MAX77650_REG_INTM_GLBL 0x06
+#define MAX77650_REG_INTM_CHG 0x07
+#define MAX77650_REG_CNFG_GLBL 0x10
+#define MAX77650_REG_CID 0x11
+#define MAX77650_REG_CNFG_GPIO 0x12
+#define MAX77650_REG_CNFG_CHG_A 0x18
+#define MAX77650_REG_CNFG_CHG_B 0x19
+#define MAX77650_REG_CNFG_CHG_C 0x1a
+#define MAX77650_REG_CNFG_CHG_D 0x1b
+#define MAX77650_REG_CNFG_CHG_E 0x1c
+#define MAX77650_REG_CNFG_CHG_F 0x1d
+#define MAX77650_REG_CNFG_CHG_G 0x1e
+#define MAX77650_REG_CNFG_CHG_H 0x1f
+#define MAX77650_REG_CNFG_CHG_I 0x20
+#define MAX77650_REG_CNFG_SBB_TOP 0x28
+#define MAX77650_REG_CNFG_SBB0_A 0x29
+#define MAX77650_REG_CNFG_SBB0_B 0x2a
+#define MAX77650_REG_CNFG_SBB1_A 0x2b
+#define MAX77650_REG_CNFG_SBB1_B 0x2c
+#define MAX77650_REG_CNFG_SBB2_A 0x2d
+#define MAX77650_REG_CNFG_SBB2_B 0x2e
+#define MAX77650_REG_CNFG_LDO_A 0x38
+#define MAX77650_REG_CNFG_LDO_B 0x39
+#define MAX77650_REG_CNFG_LED0_A 0x40
+#define MAX77650_REG_CNFG_LED1_A 0x41
+#define MAX77650_REG_CNFG_LED2_A 0x42
+#define MAX77650_REG_CNFG_LED0_B 0x43
+#define MAX77650_REG_CNFG_LED1_B 0x44
+#define MAX77650_REG_CNFG_LED2_B 0x45
+#define MAX77650_REG_CNFG_LED_TOP 0x46
+
+#define MAX77650_CID_MASK GENMASK(3, 0)
+#define MAX77650_CID_BITS(_reg) (_reg & MAX77650_CID_MASK)
+
+#define MAX77650_CID_77650A 0x03
+#define MAX77650_CID_77650C 0x0a
+#define MAX77650_CID_77651A 0x06
+#define MAX77650_CID_77651B 0x08
+
+#endif /* MAX77650_H */
#include <linux/bitops.h>
-/* LM3532 */
-#define LM3532_REG_OUTPUT_CFG 0x10
-#define LM3532_ILED1_CFG_MASK 0x03
-#define LM3532_ILED2_CFG_MASK 0x0C
-#define LM3532_ILED3_CFG_MASK 0x30
-#define LM3532_ILED1_CFG_SHIFT 0
-#define LM3532_ILED2_CFG_SHIFT 2
-#define LM3532_ILED3_CFG_SHIFT 4
-
-#define LM3532_REG_RAMPUP 0x12
-#define LM3532_REG_RAMPDN LM3532_REG_RAMPUP
-#define LM3532_RAMPUP_MASK 0x07
-#define LM3532_RAMPUP_SHIFT 0
-#define LM3532_RAMPDN_MASK 0x38
-#define LM3532_RAMPDN_SHIFT 3
-
-#define LM3532_REG_ENABLE 0x1D
-
-#define LM3532_REG_PWM_A_CFG 0x13
-#define LM3532_PWM_A_MASK 0x05 /* zone 0 */
-#define LM3532_PWM_ZONE_0 BIT(2)
-
-#define LM3532_REG_PWM_B_CFG 0x14
-#define LM3532_PWM_B_MASK 0x09 /* zone 1 */
-#define LM3532_PWM_ZONE_1 BIT(3)
-
-#define LM3532_REG_PWM_C_CFG 0x15
-#define LM3532_PWM_C_MASK 0x11 /* zone 2 */
-#define LM3532_PWM_ZONE_2 BIT(4)
-
-#define LM3532_REG_ZONE_CFG_A 0x16
-#define LM3532_REG_ZONE_CFG_B 0x18
-#define LM3532_REG_ZONE_CFG_C 0x1A
-#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4))
-#define LM3532_ZONE_0 0
-#define LM3532_ZONE_1 BIT(2)
-#define LM3532_ZONE_2 BIT(3)
-
-#define LM3532_REG_BRT_A 0x70 /* zone 0 */
-#define LM3532_REG_BRT_B 0x76 /* zone 1 */
-#define LM3532_REG_BRT_C 0x7C /* zone 2 */
-
-#define LM3532_MAX_REG 0x7E
-
/* LM3631 */
#define LM3631_REG_DEVCTRL 0x00
#define LM3631_LCD_EN_MASK BIT(1)
#define LMU_EVENT_MONITOR_DONE 0x01
enum ti_lmu_id {
- LM3532,
LM3631,
LM3632,
LM3633,
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