Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-omap2 / omap_device.h

diff --git a/kernel/arch/arm/mach-omap2/omap_device.h b/kernel/arch/arm/mach-omap2/omap_device.h
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+++ b/kernel/arch/arm/mach-omap2/omap_device.h
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+/*
+ * 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.
+ *
+ * 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 platform_device *omap_device_build(const char *pdev_name, int pdev_id,
+                                         struct omap_hwmod *oh, void *pdata,
+                                         int pdata_len);
+
+struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
+                                        struct omap_hwmod **oh, int oh_cnt,
+                                        void *pdata, int pdata_len);
+
+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