FM / mfd

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/mfd/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/mfd

Name	Size	Mode	Actions
abx500/	-	0755	rm
arizona/	-	0755	rm
da9052/	-	0755	rm
da9055/	-	0755	rm
da9062/	-	0755	rm
da9063/	-	0755	rm
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mt6323/	-	0755	rm
mt6397/	-	0755	rm
pcf50633/	-	0755	rm
samsung/	-	0755	rm
syscon/	-	0755	rm
wm831x/	-	0755	rm
wm8350/	-	0755	rm
wm8994/	-	0755	rm
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wm8400.h	1213	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/mfd/kempld.h (4260B)

/*
 * Kontron PLD driver definitions
 *
 * Copyright (c) 2010-2012 Kontron Europe GmbH
 * Author: Michael Brunner <michael.brunner@kontron.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License 2 as published
 * by the Free Software Foundation.
 */

#ifndef _LINUX_MFD_KEMPLD_H_
#define _LINUX_MFD_KEMPLD_H_

/* kempld register definitions */
#define KEMPLD_IOINDEX			0xa80
#define KEMPLD_IODATA			0xa81
#define KEMPLD_MUTEX_KEY		0x80
#define KEMPLD_VERSION			0x00
#define KEMPLD_VERSION_LSB		0x00
#define KEMPLD_VERSION_MSB		0x01
#define KEMPLD_VERSION_GET_MINOR(x)	(x & 0x1f)
#define KEMPLD_VERSION_GET_MAJOR(x)	((x >> 5) & 0x1f)
#define KEMPLD_VERSION_GET_NUMBER(x)	((x >> 10) & 0xf)
#define KEMPLD_VERSION_GET_TYPE(x)	((x >> 14) & 0x3)
#define KEMPLD_BUILDNR			0x02
#define KEMPLD_BUILDNR_LSB		0x02
#define KEMPLD_BUILDNR_MSB		0x03
#define KEMPLD_FEATURE			0x04
#define KEMPLD_FEATURE_LSB		0x04
#define KEMPLD_FEATURE_MSB		0x05
#define KEMPLD_FEATURE_BIT_I2C		(1 << 0)
#define KEMPLD_FEATURE_BIT_WATCHDOG	(1 << 1)
#define KEMPLD_FEATURE_BIT_GPIO		(1 << 2)
#define KEMPLD_FEATURE_MASK_UART	(7 << 3)
#define KEMPLD_FEATURE_BIT_NMI		(1 << 8)
#define KEMPLD_FEATURE_BIT_SMI		(1 << 9)
#define KEMPLD_FEATURE_BIT_SCI		(1 << 10)
#define KEMPLD_SPEC			0x06
#define KEMPLD_SPEC_GET_MINOR(x)	(x & 0x0f)
#define KEMPLD_SPEC_GET_MAJOR(x)	((x >> 4) & 0x0f)
#define KEMPLD_IRQ_GPIO			0x35
#define KEMPLD_IRQ_I2C			0x36
#define KEMPLD_CFG			0x37
#define KEMPLD_CFG_GPIO_I2C_MUX		(1 << 0)
#define KEMPLD_CFG_BIOS_WP		(1 << 7)

#define KEMPLD_CLK			33333333

#define	KEMPLD_TYPE_RELEASE		0x0
#define	KEMPLD_TYPE_DEBUG		0x1
#define	KEMPLD_TYPE_CUSTOM		0x2

#define KEMPLD_VERSION_LEN		10

/**
 * struct kempld_info - PLD device information structure
 * @major:	PLD major revision
 * @minor:	PLD minor revision
 * @buildnr:	PLD build number
 * @number:	PLD board specific index
 * @type:	PLD type
 * @spec_major:	PLD FW specification major revision
 * @spec_minor:	PLD FW specification minor revision
 * @version:	PLD version string
 */
struct kempld_info {
	unsigned int major;
	unsigned int minor;
	unsigned int buildnr;
	unsigned int number;
	unsigned int type;
	unsigned int spec_major;
	unsigned int spec_minor;
	char version[KEMPLD_VERSION_LEN];
};

/**
 * struct kempld_device_data - Internal representation of the PLD device
 * @io_base:		Pointer to the IO memory
 * @io_index:		Pointer to the IO index register
 * @io_data:		Pointer to the IO data register
 * @pld_clock:		PLD clock frequency
 * @feature_mask:	PLD feature mask
 * @dev:		Pointer to kernel device structure
 * @info:		KEMPLD info structure
 * @lock:		PLD mutex
 */
struct kempld_device_data {
	void __iomem		*io_base;
	void __iomem		*io_index;
	void __iomem		*io_data;
	u32			pld_clock;
	u32			feature_mask;
	struct device		*dev;
	struct kempld_info	info;
	struct mutex		lock;
};

/**
 * struct kempld_platform_data - PLD hardware configuration structure
 * @pld_clock:			PLD clock frequency
 * @gpio_base			GPIO base pin number
 * @ioresource:			IO addresses of the PLD
 * @get_mutex:			PLD specific get_mutex callback
 * @release_mutex:		PLD specific release_mutex callback
 * @get_info:			PLD specific get_info callback
 * @register_cells:		PLD specific register_cells callback
 */
struct kempld_platform_data {
	u32				pld_clock;
	int				gpio_base;
	struct resource			*ioresource;
	void (*get_hardware_mutex)	(struct kempld_device_data *);
	void (*release_hardware_mutex)	(struct kempld_device_data *);
	int (*get_info)			(struct kempld_device_data *);
	int (*register_cells)		(struct kempld_device_data *);
};

extern void kempld_get_mutex(struct kempld_device_data *pld);
extern void kempld_release_mutex(struct kempld_device_data *pld);
extern u8 kempld_read8(struct kempld_device_data *pld, u8 index);
extern void kempld_write8(struct kempld_device_data *pld, u8 index, u8 data);
extern u16 kempld_read16(struct kempld_device_data *pld, u8 index);
extern void kempld_write16(struct kempld_device_data *pld, u8 index, u16 data);
extern u32 kempld_read32(struct kempld_device_data *pld, u8 index);
extern void kempld_write32(struct kempld_device_data *pld, u8 index, u32 data);

#endif /* _LINUX_MFD_KEMPLD_H_ */

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