include/linux/mfd/88pm80x.h

Source file repositories/reference/linux-study-clean/include/linux/mfd/88pm80x.h

File Facts

System
Linux kernel
Corpus path
include/linux/mfd/88pm80x.h
Extension
.h
Size
10086 bytes
Lines
371
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pm80x_rtc_pdata {
	int		vrtc;
	int		rtc_wakeup;
};

struct pm80x_subchip {
	struct i2c_client *power_page;	/* chip client for power page */
	struct i2c_client *gpadc_page;	/* chip client for gpadc page */
	struct regmap *regmap_power;
	struct regmap *regmap_gpadc;
	unsigned short power_page_addr;	/* power page I2C address */
	unsigned short gpadc_page_addr;	/* gpadc page I2C address */
};

struct pm80x_chip {
	struct pm80x_subchip *subchip;
	struct device *dev;
	struct i2c_client *client;
	struct i2c_client *companion;
	struct regmap *regmap;
	const struct regmap_irq_chip *regmap_irq_chip;
	struct regmap_irq_chip_data *irq_data;
	int type;
	int irq;
	int irq_mode;
	unsigned long wu_flag;
	spinlock_t lock;
};

struct pm80x_platform_data {
	struct pm80x_rtc_pdata *rtc;
	/*
	 * For the regulator not defined, set regulators[not_defined] to be
	 * NULL. num_regulators are the number of regulators supposed to be
	 * initialized. If all regulators are not defined, set num_regulators
	 * to be 0.
	 */
	struct regulator_init_data *regulators[PM800_ID_RG_MAX];
	unsigned int num_regulators;
	int irq_mode;		/* Clear interrupt by read/write(0/1) */
	int batt_det;		/* enable/disable */
	int (*plat_config)(struct pm80x_chip *chip,
				struct pm80x_platform_data *pdata);
};

extern const struct dev_pm_ops pm80x_pm_ops;
extern const struct regmap_config pm80x_regmap_config;

static inline int pm80x_request_irq(struct pm80x_chip *pm80x, int irq,
				     irq_handler_t handler, unsigned long flags,
				     const char *name, void *data)
{
	if (!pm80x->irq_data)
		return -EINVAL;
	return request_threaded_irq(regmap_irq_get_virq(pm80x->irq_data, irq),
				    NULL, handler, flags, name, data);
}

static inline void pm80x_free_irq(struct pm80x_chip *pm80x, int irq, void *data)
{
	if (!pm80x->irq_data)
		return;
	free_irq(regmap_irq_get_virq(pm80x->irq_data, irq), data);
}

#ifdef CONFIG_PM
static inline int pm80x_dev_suspend(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
	int irq = platform_get_irq(pdev, 0);

	if (device_may_wakeup(dev))
		set_bit(irq, &chip->wu_flag);

	return 0;
}

static inline int pm80x_dev_resume(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
	int irq = platform_get_irq(pdev, 0);

	if (device_may_wakeup(dev))
		clear_bit(irq, &chip->wu_flag);

	return 0;
}
#endif

Annotation

Implementation Notes