2009-09-04 01:14:05 +08:00
|
|
|
/*
|
|
|
|
* 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 program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*
|
2013-01-26 15:48:53 +08:00
|
|
|
* This type of functionality should be implemented as a proper
|
|
|
|
* omap_bus/omap_device in Linux.
|
2009-09-04 01:14:05 +08:00
|
|
|
*
|
|
|
|
* 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>
|
|
|
|
|
2012-10-03 08:41:35 +08:00
|
|
|
#include "omap_hwmod.h"
|
2009-09-04 01:14:05 +08:00
|
|
|
|
2012-02-16 03:47:45 +08:00
|
|
|
extern struct dev_pm_domain omap_device_pm_domain;
|
2010-08-23 23:10:55 +08:00
|
|
|
|
2009-09-04 01:14:05 +08:00
|
|
|
/* 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
|
|
|
|
|
2011-07-13 04:48:19 +08:00
|
|
|
/* omap_device.flags values */
|
2013-01-26 15:48:53 +08:00
|
|
|
#define OMAP_DEVICE_SUSPENDED BIT(0)
|
2011-07-13 04:48:19 +08:00
|
|
|
|
2009-09-04 01:14:05 +08:00
|
|
|
/**
|
|
|
|
* 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
|
2012-07-11 02:13:16 +08:00
|
|
|
* @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
|
2009-09-04 01:14:05 +08:00
|
|
|
*
|
|
|
|
* 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 {
|
2011-07-22 04:58:51 +08:00
|
|
|
struct platform_device *pdev;
|
2009-09-04 01:14:05 +08:00
|
|
|
struct omap_hwmod **hwmods;
|
2012-07-11 02:13:16 +08:00
|
|
|
unsigned long _driver_status;
|
2009-09-04 01:14:05 +08:00
|
|
|
u8 hwmods_cnt;
|
|
|
|
u8 _state;
|
2011-07-13 04:48:19 +08:00
|
|
|
u8 flags;
|
2009-09-04 01:14:05 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
/* 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 */
|
|
|
|
|
2011-07-22 04:48:45 +08:00
|
|
|
struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
|
2013-01-26 15:48:53 +08:00
|
|
|
struct omap_hwmod *oh, void *pdata,
|
|
|
|
int pdata_len);
|
2009-09-04 01:14:05 +08:00
|
|
|
|
2011-07-22 04:48:45 +08:00
|
|
|
struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
|
2009-09-04 01:14:05 +08:00
|
|
|
struct omap_hwmod **oh, int oh_cnt,
|
2013-01-26 15:48:53 +08:00
|
|
|
void *pdata, int pdata_len);
|
2009-09-04 01:14:05 +08:00
|
|
|
|
ARM: OMAP: omap_device: Expose omap_device_{alloc, delete, register}
Expose omap_device_{alloc, delete, register} so we can use them outside
of omap_device.c.
This approach allows users, which need to manipulate an archdata member
of a device before it is registered, to do so. This is also useful
for users who have their devices created very early so they can be used
at ->reserve() time to reserve CMA memory.
The immediate use case for this is to set the private iommu archdata
member, which binds a device to its associated iommu controller.
This way, generic code will be able to attach omap devices to their
iommus, without calling any omap-specific API.
With this in hand, we can further clean the existing mainline OMAP iommu
driver and its mainline users, and focus on generic IOMMU approaches
for future users (rpmsg/remoteproc and the upcoming generic DMA API).
This patch is still considered an interim solution until DT fully materializes
for omap; at that point, this functionality will be removed as DT will
take care of creating the devices and configuring them correctly.
Tested on OMAP4 with a generic rpmsg/remoteproc that doesn't use any
omap-specific IOMMU API anymore.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21 01:43:29 +08:00
|
|
|
struct omap_device *omap_device_alloc(struct platform_device *pdev,
|
2013-01-26 15:48:53 +08:00
|
|
|
struct omap_hwmod **ohs, int oh_cnt);
|
ARM: OMAP: omap_device: Expose omap_device_{alloc, delete, register}
Expose omap_device_{alloc, delete, register} so we can use them outside
of omap_device.c.
This approach allows users, which need to manipulate an archdata member
of a device before it is registered, to do so. This is also useful
for users who have their devices created very early so they can be used
at ->reserve() time to reserve CMA memory.
The immediate use case for this is to set the private iommu archdata
member, which binds a device to its associated iommu controller.
This way, generic code will be able to attach omap devices to their
iommus, without calling any omap-specific API.
With this in hand, we can further clean the existing mainline OMAP iommu
driver and its mainline users, and focus on generic IOMMU approaches
for future users (rpmsg/remoteproc and the upcoming generic DMA API).
This patch is still considered an interim solution until DT fully materializes
for omap; at that point, this functionality will be removed as DT will
take care of creating the devices and configuring them correctly.
Tested on OMAP4 with a generic rpmsg/remoteproc that doesn't use any
omap-specific IOMMU API anymore.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21 01:43:29 +08:00
|
|
|
void omap_device_delete(struct omap_device *od);
|
|
|
|
int omap_device_register(struct platform_device *pdev);
|
|
|
|
|
2011-07-28 04:02:32 +08:00
|
|
|
struct device *omap_device_get_by_hwmod_name(const char *oh_name);
|
2010-07-27 06:34:33 +08:00
|
|
|
|
2009-09-04 01:14:05 +08:00
|
|
|
/* OMAP PM interface */
|
2011-06-09 21:56:23 +08:00
|
|
|
int omap_device_get_context_loss_count(struct platform_device *pdev);
|
2009-09-04 01:14:05 +08:00
|
|
|
|
|
|
|
/* Other */
|
|
|
|
|
2012-09-24 07:28:18 +08:00
|
|
|
int omap_device_assert_hardreset(struct platform_device *pdev,
|
|
|
|
const char *name);
|
|
|
|
int omap_device_deassert_hardreset(struct platform_device *pdev,
|
|
|
|
const char *name);
|
2009-09-04 01:14:05 +08:00
|
|
|
|
2009-12-09 07:34:17 +08:00
|
|
|
/* Get omap_device pointer from platform_device pointer */
|
2011-07-22 04:58:51 +08:00
|
|
|
static inline struct omap_device *to_omap_device(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
return pdev ? pdev->archdata.od : NULL;
|
|
|
|
}
|
2009-12-09 07:34:17 +08:00
|
|
|
#endif
|