From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/arm/mach-omap2/omap_device.h | 92 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 arch/arm/mach-omap2/omap_device.h (limited to 'arch/arm/mach-omap2/omap_device.h') diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h new file mode 100644 index 000000000..d607532cf --- /dev/null +++ b/arch/arm/mach-omap2/omap_device.h @@ -0,0 +1,92 @@ +/* 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 +#include + +#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 + * + * 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); + +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 -- cgit v1.2.3