144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* drivers/mfd/mfd-core.h
|
|
*
|
|
* core MFD support
|
|
* Copyright (c) 2006 Ian Molton
|
|
* Copyright (c) 2007 Dmitry Baryshkov
|
|
*/
|
|
|
|
#ifndef MFD_CORE_H
|
|
#define MFD_CORE_H
|
|
|
|
#include <linux/platform_device.h>
|
|
|
|
#define MFD_RES_SIZE(arr) (sizeof(arr) / sizeof(struct resource))
|
|
|
|
#define MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, _compat, _match)\
|
|
{ \
|
|
.name = (_name), \
|
|
.resources = (_res), \
|
|
.num_resources = MFD_RES_SIZE((_res)), \
|
|
.platform_data = (_pdata), \
|
|
.pdata_size = (_pdsize), \
|
|
.of_compatible = (_compat), \
|
|
.acpi_match = (_match), \
|
|
.id = (_id), \
|
|
}
|
|
|
|
#define OF_MFD_CELL(_name, _res, _pdata, _pdsize,_id, _compat) \
|
|
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, _compat, NULL) \
|
|
|
|
#define ACPI_MFD_CELL(_name, _res, _pdata, _pdsize, _id, _match) \
|
|
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, NULL, _match) \
|
|
|
|
#define MFD_CELL_BASIC(_name, _res, _pdata, _pdsize, _id) \
|
|
MFD_CELL_ALL(_name, _res, _pdata, _pdsize, _id, NULL, NULL) \
|
|
|
|
#define MFD_CELL_RES(_name, _res) \
|
|
MFD_CELL_ALL(_name, _res, NULL, 0, 0, NULL, NULL) \
|
|
|
|
#define MFD_CELL_NAME(_name) \
|
|
MFD_CELL_ALL(_name, NULL, NULL, 0, 0, NULL, NULL) \
|
|
|
|
struct irq_domain;
|
|
struct property_entry;
|
|
|
|
/* Matches ACPI PNP id, either _HID or _CID, or ACPI _ADR */
|
|
struct mfd_cell_acpi_match {
|
|
const char *pnpid;
|
|
const unsigned long long adr;
|
|
};
|
|
|
|
/*
|
|
* This struct describes the MFD part ("cell").
|
|
* After registration the copy of this structure will become the platform data
|
|
* of the resulting platform_device
|
|
*/
|
|
struct mfd_cell {
|
|
const char *name;
|
|
int id;
|
|
|
|
int (*enable)(struct platform_device *dev);
|
|
int (*disable)(struct platform_device *dev);
|
|
|
|
int (*suspend)(struct platform_device *dev);
|
|
int (*resume)(struct platform_device *dev);
|
|
|
|
/* platform data passed to the sub devices drivers */
|
|
void *platform_data;
|
|
size_t pdata_size;
|
|
|
|
/* device properties passed to the sub devices drivers */
|
|
const struct property_entry *properties;
|
|
|
|
/*
|
|
* Device Tree compatible string
|
|
* See: Documentation/devicetree/usage-model.rst Chapter 2.2 for details
|
|
*/
|
|
const char *of_compatible;
|
|
|
|
/* Matches ACPI */
|
|
const struct mfd_cell_acpi_match *acpi_match;
|
|
|
|
/*
|
|
* These resources can be specified relative to the parent device.
|
|
* For accessing hardware you should use resources from the platform dev
|
|
*/
|
|
int num_resources;
|
|
const struct resource *resources;
|
|
|
|
/* don't check for resource conflicts */
|
|
bool ignore_resource_conflicts;
|
|
|
|
/*
|
|
* Disable runtime PM callbacks for this subdevice - see
|
|
* pm_runtime_no_callbacks().
|
|
*/
|
|
bool pm_runtime_no_callbacks;
|
|
|
|
/* A list of regulator supplies that should be mapped to the MFD
|
|
* device rather than the child device when requested
|
|
*/
|
|
const char * const *parent_supplies;
|
|
int num_parent_supplies;
|
|
};
|
|
|
|
/*
|
|
* Convenience functions for clients using shared cells. Refcounting
|
|
* happens automatically, with the cell's enable/disable callbacks
|
|
* being called only when a device is first being enabled or no other
|
|
* clients are making use of it.
|
|
*/
|
|
extern int mfd_cell_enable(struct platform_device *pdev);
|
|
extern int mfd_cell_disable(struct platform_device *pdev);
|
|
|
|
/*
|
|
* Given a platform device that's been created by mfd_add_devices(), fetch
|
|
* the mfd_cell that created it.
|
|
*/
|
|
static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
|
|
{
|
|
return pdev->mfd_cell;
|
|
}
|
|
|
|
extern int mfd_add_devices(struct device *parent, int id,
|
|
const struct mfd_cell *cells, int n_devs,
|
|
struct resource *mem_base,
|
|
int irq_base, struct irq_domain *irq_domain);
|
|
|
|
static inline int mfd_add_hotplug_devices(struct device *parent,
|
|
const struct mfd_cell *cells, int n_devs)
|
|
{
|
|
return mfd_add_devices(parent, PLATFORM_DEVID_AUTO, cells, n_devs,
|
|
NULL, 0, NULL);
|
|
}
|
|
|
|
extern void mfd_remove_devices(struct device *parent);
|
|
|
|
extern int devm_mfd_add_devices(struct device *dev, int id,
|
|
const struct mfd_cell *cells, int n_devs,
|
|
struct resource *mem_base,
|
|
int irq_base, struct irq_domain *irq_domain);
|
|
#endif
|