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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * omap_device headers
4 *
5 * Copyright (C) 2009 Nokia Corporation
6 * Paul Walmsley
7 *
8 * Developed in collaboration with (alphabetical order): Benoit
9 * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram
10 * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard
11 * Woodruff
12 *
13 * This type of functionality should be implemented as a proper
14 * omap_bus/omap_device in Linux.
15 *
16 * omap_device differs from omap_hwmod in that it includes external
17 * (e.g., board- and system-level) integration details. omap_hwmod
18 * stores hardware data that is invariant for a given OMAP chip.
19 */
20#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
21#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
22
23#include <linux/kernel.h>
24#include <linux/platform_device.h>
25
26#include "omap_hwmod.h"
27
28/* omap_device._state values */
29#define OMAP_DEVICE_STATE_UNKNOWN 0
30#define OMAP_DEVICE_STATE_ENABLED 1
31#define OMAP_DEVICE_STATE_IDLE 2
32#define OMAP_DEVICE_STATE_SHUTDOWN 3
33
34/* omap_device.flags values */
35#define OMAP_DEVICE_SUSPENDED BIT(0)
36
37/**
38 * struct omap_device - omap_device wrapper for platform_devices
39 * @pdev: platform_device
40 * @hwmods: (one .. many per omap_device)
41 * @hwmods_cnt: ARRAY_SIZE() of @hwmods
42 * @_state: one of OMAP_DEVICE_STATE_* (see above)
43 * @flags: device flags
44 * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
45 *
46 * Integrates omap_hwmod data into Linux platform_device.
47 *
48 * Field names beginning with underscores are for the internal use of
49 * the omap_device code.
50 *
51 */
52struct omap_device {
53 struct platform_device *pdev;
54 struct omap_hwmod **hwmods;
55 unsigned long _driver_status;
56 u8 hwmods_cnt;
57 u8 _state;
58 u8 flags;
59};
60
61/* Device driver interface (call via platform_data fn ptrs) */
62
63int omap_device_enable(struct platform_device *pdev);
64int omap_device_idle(struct platform_device *pdev);
65
66/* Other */
67
68int omap_device_assert_hardreset(struct platform_device *pdev,
69 const char *name);
70int omap_device_deassert_hardreset(struct platform_device *pdev,
71 const char *name);
72
73/* Get omap_device pointer from platform_device pointer */
74static inline struct omap_device *to_omap_device(struct platform_device *pdev)
75{
76 return pdev ? pdev->archdata.od : NULL;
77}
78#endif
1/*
2 * omap_device headers
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Paul Walmsley
6 *
7 * Developed in collaboration with (alphabetical order): Benoit
8 * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram
9 * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard
10 * Woodruff
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 *
16 * This type of functionality should be implemented as a proper
17 * omap_bus/omap_device in Linux.
18 *
19 * omap_device differs from omap_hwmod in that it includes external
20 * (e.g., board- and system-level) integration details. omap_hwmod
21 * stores hardware data that is invariant for a given OMAP chip.
22 */
23#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
24#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
25
26#include <linux/kernel.h>
27#include <linux/platform_device.h>
28
29#include "omap_hwmod.h"
30
31extern struct dev_pm_domain omap_device_pm_domain;
32extern struct dev_pm_domain omap_device_fail_pm_domain;
33
34/* omap_device._state values */
35#define OMAP_DEVICE_STATE_UNKNOWN 0
36#define OMAP_DEVICE_STATE_ENABLED 1
37#define OMAP_DEVICE_STATE_IDLE 2
38#define OMAP_DEVICE_STATE_SHUTDOWN 3
39
40/* omap_device.flags values */
41#define OMAP_DEVICE_SUSPENDED BIT(0)
42
43/**
44 * struct omap_device - omap_device wrapper for platform_devices
45 * @pdev: platform_device
46 * @hwmods: (one .. many per omap_device)
47 * @hwmods_cnt: ARRAY_SIZE() of @hwmods
48 * @_state: one of OMAP_DEVICE_STATE_* (see above)
49 * @flags: device flags
50 * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
51 *
52 * Integrates omap_hwmod data into Linux platform_device.
53 *
54 * Field names beginning with underscores are for the internal use of
55 * the omap_device code.
56 *
57 */
58struct omap_device {
59 struct platform_device *pdev;
60 struct omap_hwmod **hwmods;
61 unsigned long _driver_status;
62 u8 hwmods_cnt;
63 u8 _state;
64 u8 flags;
65};
66
67/* Device driver interface (call via platform_data fn ptrs) */
68
69int omap_device_enable(struct platform_device *pdev);
70int omap_device_idle(struct platform_device *pdev);
71
72/* Core code interface */
73
74struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
75 struct omap_hwmod *oh, void *pdata,
76 int pdata_len);
77
78struct omap_device *omap_device_alloc(struct platform_device *pdev,
79 struct omap_hwmod **ohs, int oh_cnt);
80void omap_device_delete(struct omap_device *od);
81int omap_device_register(struct platform_device *pdev);
82
83struct device *omap_device_get_by_hwmod_name(const char *oh_name);
84
85/* OMAP PM interface */
86int omap_device_get_context_loss_count(struct platform_device *pdev);
87
88/* Other */
89
90int omap_device_assert_hardreset(struct platform_device *pdev,
91 const char *name);
92int omap_device_deassert_hardreset(struct platform_device *pdev,
93 const char *name);
94
95/* Get omap_device pointer from platform_device pointer */
96static inline struct omap_device *to_omap_device(struct platform_device *pdev)
97{
98 return pdev ? pdev->archdata.od : NULL;
99}
100#endif