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d85a2d6143
We can populate the legacy resources needed by dma and smartreflex from device tree in omap_device_build(). There should be no need to do this for other devices, and eventually these two remaining users will be gone too. The legacy dma will be dropped when the remaining users have been converted to use the dmaengine driver, and smartreflex can now become just a regular device driver with a few pdata callbacks. This is needed in order to remove remaining device dma, irq and io resources from the interconnect code. And while at it, let's simplify things by removing otherwise unused omap_device_build_ss() as we will never call it for more than one hwmod. Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/*
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* omap_device headers
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*
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* Copyright (C) 2009 Nokia Corporation
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* Paul Walmsley
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*
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* Developed in collaboration with (alphabetical order): Benoit
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* Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram
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* Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard
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* Woodruff
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This type of functionality should be implemented as a proper
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* omap_bus/omap_device in Linux.
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*
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* omap_device differs from omap_hwmod in that it includes external
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* (e.g., board- and system-level) integration details. omap_hwmod
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* stores hardware data that is invariant for a given OMAP chip.
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*/
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#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
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#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include "omap_hwmod.h"
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extern struct dev_pm_domain omap_device_pm_domain;
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extern struct dev_pm_domain omap_device_fail_pm_domain;
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/* omap_device._state values */
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#define OMAP_DEVICE_STATE_UNKNOWN 0
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#define OMAP_DEVICE_STATE_ENABLED 1
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#define OMAP_DEVICE_STATE_IDLE 2
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#define OMAP_DEVICE_STATE_SHUTDOWN 3
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/* omap_device.flags values */
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#define OMAP_DEVICE_SUSPENDED BIT(0)
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/**
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* struct omap_device - omap_device wrapper for platform_devices
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* @pdev: platform_device
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* @hwmods: (one .. many per omap_device)
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* @hwmods_cnt: ARRAY_SIZE() of @hwmods
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* @_state: one of OMAP_DEVICE_STATE_* (see above)
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* @flags: device flags
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* @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
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*
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* Integrates omap_hwmod data into Linux platform_device.
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*
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* Field names beginning with underscores are for the internal use of
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* the omap_device code.
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*
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*/
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struct omap_device {
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struct platform_device *pdev;
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struct omap_hwmod **hwmods;
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unsigned long _driver_status;
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u8 hwmods_cnt;
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u8 _state;
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u8 flags;
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};
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/* Device driver interface (call via platform_data fn ptrs) */
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int omap_device_enable(struct platform_device *pdev);
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int omap_device_idle(struct platform_device *pdev);
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/* Core code interface */
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struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
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struct omap_hwmod *oh, void *pdata,
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int pdata_len);
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struct omap_device *omap_device_alloc(struct platform_device *pdev,
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struct omap_hwmod **ohs, int oh_cnt);
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void omap_device_delete(struct omap_device *od);
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int omap_device_register(struct platform_device *pdev);
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struct device *omap_device_get_by_hwmod_name(const char *oh_name);
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/* OMAP PM interface */
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int omap_device_get_context_loss_count(struct platform_device *pdev);
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/* Other */
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int omap_device_assert_hardreset(struct platform_device *pdev,
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const char *name);
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int omap_device_deassert_hardreset(struct platform_device *pdev,
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const char *name);
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/* Get omap_device pointer from platform_device pointer */
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static inline struct omap_device *to_omap_device(struct platform_device *pdev)
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{
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return pdev ? pdev->archdata.od : NULL;
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}
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#endif
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