Merge tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones: "Core Framework: - Document (kerneldoc) core mfd_add_devices() API New Drivers: - Altera SOCFPGA System Manager - Maxim MAX77650/77651 PMIC - Maxim MAX77663 PMIC - ST Multi-Function eXpander (STMFX) New Device Support: - LEDs support in Intel Cherry Trail Whiskey Cove PMIC - RTC support in SAMSUNG Electronics S2MPA01 PMIC - SAM9X60 support in Atmel HLCDC (High-end LCD Controller) - USB X-Powers AXP 8xx PMICs - Integrated Sensor Hub (ISH) in ChromeOS EC - USB PD Logger in ChromeOS EC - AXP223 in X-Powers AXP series PMICs - Power Supply in X-Powers AXP 803 PMICs - Comet Lake in Intel Low Power Subsystem - Fingerprint MCU in ChromeOS EC - Touchpad MCU in ChromeOS EC - Move TI LM3532 support to LED New Functionality: - max77650, max77620: Add/extend DT support - max77620 power-off - syscon clocking - croc_ec host sleep event Fix-ups: - Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs - Remove unused functionality; rk808, da9063-* - SPDX conversion; da9063-*, atmel-*, - Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr - Fix-up DT bindings; ti-lmu, cirrus,lochnagar - Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb Bug Fixes: - Fix incorrect defined values; max77620, da9063 - Fix device initialisation; twl6040 - Reset device on init; intel-lpss - Fix build warnings when !OF; sun6i-prcm - Register OF match tables; tps65912-spi - Fix DMI matching; intel_quark_i2c_gpio" * tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (65 commits) mfd: Use dev_get_drvdata() directly mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device mfd: cros_ec: Instantiate properly CrOS FP MCU device mfd: cros_ec: Update the EC feature codes mfd: intel-lpss: Add Intel Comet Lake PCI IDs mfd: lochnagar: Add links to binding docs for sound and hwmon mfd: ab8500-debugfs: Fix a typo ("deubgfs") mfd: imx6sx: Add MQS register definition for iomuxc gpr dt-bindings: mfd: LMU: Fix lm3632 dt binding example mfd: intel_quark_i2c_gpio: Adjust IOT2000 matching mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L mfd: tps65912-spi: Add missing of table registration mfd: axp20x: Add USB power supply mfd cell to AXP803 mfd: sun6i-prcm: Fix build warning for non-OF configurations mfd: intel-lpss: Set the device in reset state when init platform/chrome: Add support for v1 of host sleep event mfd: cros_ec: Add host_sleep_event_v1 command mfd: cros_ec: Instantiate the CrOS USB PD logger driver mfd: cs47l90: Make DAC_AEC_CONTROL_2 readable mfd: cs47l35: Make DAC_AEC_CONTROL_2 readable ...
This commit is contained in:
@@ -1097,6 +1097,13 @@ config GPIO_MAX77620
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driver also provides interrupt support for each of the gpios.
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Say yes here to enable the max77620 to be used as gpio controller.
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config GPIO_MAX77650
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tristate "Maxim MAX77650/77651 GPIO support"
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depends on MFD_MAX77650
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help
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GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
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These chips have a single pin that can be configured as GPIO.
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config GPIO_MSIC
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bool "Intel MSIC mixed signal gpio support"
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depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
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@@ -80,6 +80,7 @@ obj-$(CONFIG_GPIO_MAX7300) += gpio-max7300.o
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obj-$(CONFIG_GPIO_MAX7301) += gpio-max7301.o
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obj-$(CONFIG_GPIO_MAX732X) += gpio-max732x.o
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obj-$(CONFIG_GPIO_MAX77620) += gpio-max77620.o
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obj-$(CONFIG_GPIO_MAX77650) += gpio-max77650.o
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obj-$(CONFIG_GPIO_MB86S7X) += gpio-mb86s7x.o
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obj-$(CONFIG_GPIO_MENZ127) += gpio-menz127.o
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obj-$(CONFIG_GPIO_MERRIFIELD) += gpio-merrifield.o
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190
drivers/gpio/gpio-max77650.c
Normal file
190
drivers/gpio/gpio-max77650.c
Normal file
@@ -0,0 +1,190 @@
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// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (C) 2018 BayLibre SAS
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// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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//
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// GPIO driver for MAXIM 77650/77651 charger/power-supply.
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#include <linux/gpio/driver.h>
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#include <linux/i2c.h>
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#include <linux/mfd/max77650.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#define MAX77650_GPIO_DIR_MASK BIT(0)
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#define MAX77650_GPIO_INVAL_MASK BIT(1)
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#define MAX77650_GPIO_DRV_MASK BIT(2)
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#define MAX77650_GPIO_OUTVAL_MASK BIT(3)
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#define MAX77650_GPIO_DEBOUNCE_MASK BIT(4)
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#define MAX77650_GPIO_DIR_OUT 0x00
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#define MAX77650_GPIO_DIR_IN BIT(0)
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#define MAX77650_GPIO_OUT_LOW 0x00
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#define MAX77650_GPIO_OUT_HIGH BIT(3)
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#define MAX77650_GPIO_DRV_OPEN_DRAIN 0x00
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#define MAX77650_GPIO_DRV_PUSH_PULL BIT(2)
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#define MAX77650_GPIO_DEBOUNCE BIT(4)
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#define MAX77650_GPIO_DIR_BITS(_reg) \
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((_reg) & MAX77650_GPIO_DIR_MASK)
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#define MAX77650_GPIO_INVAL_BITS(_reg) \
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(((_reg) & MAX77650_GPIO_INVAL_MASK) >> 1)
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struct max77650_gpio_chip {
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struct regmap *map;
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struct gpio_chip gc;
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int irq;
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};
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static int max77650_gpio_direction_input(struct gpio_chip *gc,
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unsigned int offset)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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return regmap_update_bits(chip->map,
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MAX77650_REG_CNFG_GPIO,
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MAX77650_GPIO_DIR_MASK,
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MAX77650_GPIO_DIR_IN);
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}
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static int max77650_gpio_direction_output(struct gpio_chip *gc,
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unsigned int offset, int value)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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int mask, regval;
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mask = MAX77650_GPIO_DIR_MASK | MAX77650_GPIO_OUTVAL_MASK;
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regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
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regval |= MAX77650_GPIO_DIR_OUT;
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return regmap_update_bits(chip->map,
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MAX77650_REG_CNFG_GPIO, mask, regval);
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}
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static void max77650_gpio_set_value(struct gpio_chip *gc,
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unsigned int offset, int value)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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int rv, regval;
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regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
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rv = regmap_update_bits(chip->map, MAX77650_REG_CNFG_GPIO,
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MAX77650_GPIO_OUTVAL_MASK, regval);
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if (rv)
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dev_err(gc->parent, "cannot set GPIO value: %d\n", rv);
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}
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static int max77650_gpio_get_value(struct gpio_chip *gc,
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unsigned int offset)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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unsigned int val;
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int rv;
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rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
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if (rv)
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return rv;
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return MAX77650_GPIO_INVAL_BITS(val);
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}
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static int max77650_gpio_get_direction(struct gpio_chip *gc,
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unsigned int offset)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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unsigned int val;
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int rv;
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rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
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if (rv)
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return rv;
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return MAX77650_GPIO_DIR_BITS(val);
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}
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static int max77650_gpio_set_config(struct gpio_chip *gc,
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unsigned int offset, unsigned long cfg)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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switch (pinconf_to_config_param(cfg)) {
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case PIN_CONFIG_DRIVE_OPEN_DRAIN:
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return regmap_update_bits(chip->map,
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MAX77650_REG_CNFG_GPIO,
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MAX77650_GPIO_DRV_MASK,
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MAX77650_GPIO_DRV_OPEN_DRAIN);
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case PIN_CONFIG_DRIVE_PUSH_PULL:
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return regmap_update_bits(chip->map,
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MAX77650_REG_CNFG_GPIO,
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MAX77650_GPIO_DRV_MASK,
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MAX77650_GPIO_DRV_PUSH_PULL);
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case PIN_CONFIG_INPUT_DEBOUNCE:
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return regmap_update_bits(chip->map,
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MAX77650_REG_CNFG_GPIO,
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MAX77650_GPIO_DEBOUNCE_MASK,
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MAX77650_GPIO_DEBOUNCE);
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default:
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return -ENOTSUPP;
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}
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}
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static int max77650_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
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{
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struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
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return chip->irq;
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}
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static int max77650_gpio_probe(struct platform_device *pdev)
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{
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struct max77650_gpio_chip *chip;
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struct device *dev, *parent;
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struct i2c_client *i2c;
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dev = &pdev->dev;
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parent = dev->parent;
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i2c = to_i2c_client(parent);
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chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
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if (!chip)
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return -ENOMEM;
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chip->map = dev_get_regmap(parent, NULL);
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if (!chip->map)
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return -ENODEV;
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chip->irq = platform_get_irq_byname(pdev, "GPI");
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if (chip->irq < 0)
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return chip->irq;
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chip->gc.base = -1;
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chip->gc.ngpio = 1;
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chip->gc.label = i2c->name;
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chip->gc.parent = dev;
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chip->gc.owner = THIS_MODULE;
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chip->gc.can_sleep = true;
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chip->gc.direction_input = max77650_gpio_direction_input;
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chip->gc.direction_output = max77650_gpio_direction_output;
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chip->gc.set = max77650_gpio_set_value;
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chip->gc.get = max77650_gpio_get_value;
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chip->gc.get_direction = max77650_gpio_get_direction;
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chip->gc.set_config = max77650_gpio_set_config;
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chip->gc.to_irq = max77650_gpio_to_irq;
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return devm_gpiochip_add_data(dev, &chip->gc, chip);
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}
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static struct platform_driver max77650_gpio_driver = {
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.driver = {
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.name = "max77650-gpio",
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},
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.probe = max77650_gpio_probe,
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};
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module_platform_driver(max77650_gpio_driver);
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MODULE_DESCRIPTION("MAXIM 77650/77651 GPIO driver");
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MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
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MODULE_LICENSE("GPL v2");
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