forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.8 KiB
93 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* omap_device headers |
|
* |
|
* Copyright (C) 2009 Nokia Corporation |
|
* Paul Walmsley |
|
* |
|
* Developed in collaboration with (alphabetical order): Benoit |
|
* Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram |
|
* Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard |
|
* Woodruff |
|
* |
|
* This type of functionality should be implemented as a proper |
|
* omap_bus/omap_device in Linux. |
|
* |
|
* omap_device differs from omap_hwmod in that it includes external |
|
* (e.g., board- and system-level) integration details. omap_hwmod |
|
* stores hardware data that is invariant for a given OMAP chip. |
|
*/ |
|
#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H |
|
#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/platform_device.h> |
|
|
|
#include "omap_hwmod.h" |
|
|
|
extern struct dev_pm_domain omap_device_pm_domain; |
|
extern struct dev_pm_domain omap_device_fail_pm_domain; |
|
|
|
/* omap_device._state values */ |
|
#define OMAP_DEVICE_STATE_UNKNOWN 0 |
|
#define OMAP_DEVICE_STATE_ENABLED 1 |
|
#define OMAP_DEVICE_STATE_IDLE 2 |
|
#define OMAP_DEVICE_STATE_SHUTDOWN 3 |
|
|
|
/* omap_device.flags values */ |
|
#define OMAP_DEVICE_SUSPENDED BIT(0) |
|
|
|
/** |
|
* struct omap_device - omap_device wrapper for platform_devices |
|
* @pdev: platform_device |
|
* @hwmods: (one .. many per omap_device) |
|
* @hwmods_cnt: ARRAY_SIZE() of @hwmods |
|
* @_state: one of OMAP_DEVICE_STATE_* (see above) |
|
* @flags: device flags |
|
* @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h> |
|
* |
|
* Integrates omap_hwmod data into Linux platform_device. |
|
* |
|
* Field names beginning with underscores are for the internal use of |
|
* the omap_device code. |
|
* |
|
*/ |
|
struct omap_device { |
|
struct platform_device *pdev; |
|
struct omap_hwmod **hwmods; |
|
unsigned long _driver_status; |
|
u8 hwmods_cnt; |
|
u8 _state; |
|
u8 flags; |
|
}; |
|
|
|
/* Device driver interface (call via platform_data fn ptrs) */ |
|
|
|
int omap_device_enable(struct platform_device *pdev); |
|
int omap_device_idle(struct platform_device *pdev); |
|
|
|
/* Core code interface */ |
|
|
|
struct omap_device *omap_device_alloc(struct platform_device *pdev, |
|
struct omap_hwmod **ohs, int oh_cnt); |
|
void omap_device_delete(struct omap_device *od); |
|
int omap_device_register(struct platform_device *pdev); |
|
|
|
struct device *omap_device_get_by_hwmod_name(const char *oh_name); |
|
|
|
/* OMAP PM interface */ |
|
int omap_device_get_context_loss_count(struct platform_device *pdev); |
|
|
|
/* Other */ |
|
|
|
int omap_device_assert_hardreset(struct platform_device *pdev, |
|
const char *name); |
|
int omap_device_deassert_hardreset(struct platform_device *pdev, |
|
const char *name); |
|
|
|
/* Get omap_device pointer from platform_device pointer */ |
|
static inline struct omap_device *to_omap_device(struct platform_device *pdev) |
|
{ |
|
return pdev ? pdev->archdata.od : NULL; |
|
} |
|
#endif
|
|
|