Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

3 Commits   0 Branches   0 Tags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0+ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * PCI Express Hot Plug Controller Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 1995,2001 Compaq Computer Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright (C) 2001 IBM Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Copyright (C) 2003-2004 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Send feedback to <greg@kroah.com>, <kristen.c.accardi@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #ifndef _PCIEHP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #define _PCIEHP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/pci_hotplug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/rwsem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "../pcie/portdrv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) extern bool pciehp_poll_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) extern int pciehp_poll_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * Set CONFIG_DYNAMIC_DEBUG=y and boot with 'dyndbg="file pciehp* +p"' to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * enable debug messages.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define ctrl_dbg(ctrl, format, arg...)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	pci_dbg(ctrl->pcie->port, format, ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define ctrl_err(ctrl, format, arg...)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	pci_err(ctrl->pcie->port, format, ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define ctrl_info(ctrl, format, arg...)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	pci_info(ctrl->pcie->port, format, ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define ctrl_warn(ctrl, format, arg...)					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	pci_warn(ctrl->pcie->port, format, ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define SLOT_NAME_SIZE 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * struct controller - PCIe hotplug controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * @pcie: pointer to the controller's PCIe port service device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * @slot_cap: cached copy of the Slot Capabilities register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  * @slot_ctrl: cached copy of the Slot Control register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  * @ctrl_lock: serializes writes to the Slot Control register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * @cmd_started: jiffies when the Slot Control register was last written;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  *	the next write is allowed 1 second later, absent a Command Completed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  *	interrupt (PCIe r4.0, sec 6.7.3.2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  * @cmd_busy: flag set on Slot Control register write, cleared by IRQ handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  *	on reception of a Command Completed event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57)  * @queue: wait queue to wake up on reception of a Command Completed event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58)  *	used for synchronous writes to the Slot Control register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  * @pending_events: used by the IRQ handler to save events retrieved from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  *	Slot Status register for later consumption by the IRQ thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  * @notification_enabled: whether the IRQ was requested successfully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  * @power_fault_detected: whether a power fault was detected by the hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  *	that has not yet been cleared by the user
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  * @poll_thread: thread to poll for slot events if no IRQ is available,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  *	enabled with pciehp_poll_mode module parameter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  * @state: current state machine position
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  * @state_lock: protects reads and writes of @state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  *	protects scheduling, execution and cancellation of @button_work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  * @button_work: work item to turn the slot on or off after 5 seconds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  *	in response to an Attention Button press
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  * @hotplug_slot: structure registered with the PCI hotplug core
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72)  * @reset_lock: prevents access to the Data Link Layer Link Active bit in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)  *	Link Status register and to the Presence Detect State bit in the Slot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  *	Status register during a slot reset which may cause them to flap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  * @depth: Number of additional hotplug ports in the path to the root bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  *	used as lock subclass for @reset_lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77)  * @ist_running: flag to keep user request waiting while IRQ thread is running
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  * @request_result: result of last user request submitted to the IRQ thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  * @requester: wait queue to wake up on completion of user request,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  *	used for synchronous slot enable/disable request via sysfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  * PCIe hotplug has a 1:1 relationship between controller and slot, hence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  * unlike other drivers, the two aren't represented by separate structures.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) struct controller {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	struct pcie_device *pcie;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	u32 slot_cap;				/* capabilities and quirks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	unsigned int inband_presence_disabled:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	u16 slot_ctrl;				/* control register access */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	struct mutex ctrl_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	unsigned long cmd_started;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	unsigned int cmd_busy:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	wait_queue_head_t queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	atomic_t pending_events;		/* event handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	unsigned int notification_enabled:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	unsigned int power_fault_detected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	struct task_struct *poll_thread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	u8 state;				/* state machine */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct mutex state_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	struct delayed_work button_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	struct hotplug_slot hotplug_slot;	/* hotplug core interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	struct rw_semaphore reset_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	unsigned int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	unsigned int ist_running;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	int request_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	wait_queue_head_t requester;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)  * DOC: Slot state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)  * @OFF_STATE: slot is powered off, no subordinate devices are enumerated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)  * @BLINKINGON_STATE: slot will be powered on after the 5 second delay,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)  *	Power Indicator is blinking
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)  * @BLINKINGOFF_STATE: slot will be powered off after the 5 second delay,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)  *	Power Indicator is blinking
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)  * @POWERON_STATE: slot is currently powering on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)  * @POWEROFF_STATE: slot is currently powering off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)  * @ON_STATE: slot is powered on, subordinate devices have been enumerated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define OFF_STATE			0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define BLINKINGON_STATE		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #define BLINKINGOFF_STATE		2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #define POWERON_STATE			3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define POWEROFF_STATE			4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define ON_STATE			5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  * DOC: Flags to request an action from the IRQ thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)  * These are stored together with events read from the Slot Status register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)  * hence must be greater than its 16-bit width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)  * %DISABLE_SLOT: Disable the slot in response to a user request via sysfs or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)  *	an Attention Button press after the 5 second delay
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)  * %RERUN_ISR: Used by the IRQ handler to inform the IRQ thread that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)  *	hotplug port was inaccessible when the interrupt occurred, requiring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)  *	that the IRQ handler is rerun by the IRQ thread after it has made the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)  *	hotplug port accessible by runtime resuming its parents to D0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define DISABLE_SLOT		(1 << 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define RERUN_ISR		(1 << 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define ATTN_BUTTN(ctrl)	((ctrl)->slot_cap & PCI_EXP_SLTCAP_ABP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define POWER_CTRL(ctrl)	((ctrl)->slot_cap & PCI_EXP_SLTCAP_PCP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define MRL_SENS(ctrl)		((ctrl)->slot_cap & PCI_EXP_SLTCAP_MRLSP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define ATTN_LED(ctrl)		((ctrl)->slot_cap & PCI_EXP_SLTCAP_AIP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define PWR_LED(ctrl)		((ctrl)->slot_cap & PCI_EXP_SLTCAP_PIP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define NO_CMD_CMPL(ctrl)	((ctrl)->slot_cap & PCI_EXP_SLTCAP_NCCS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define PSN(ctrl)		(((ctrl)->slot_cap & PCI_EXP_SLTCAP_PSN) >> 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) void pciehp_request(struct controller *ctrl, int action);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) void pciehp_handle_button_press(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) void pciehp_handle_disable_request(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) void pciehp_handle_presence_or_link_change(struct controller *ctrl, u32 events);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int pciehp_configure_device(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) void pciehp_unconfigure_device(struct controller *ctrl, bool presence);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) void pciehp_queue_pushbutton_work(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct controller *pcie_init(struct pcie_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int pcie_init_notification(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) void pcie_shutdown_notification(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) void pcie_clear_hotplug_events(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) void pcie_enable_interrupt(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) void pcie_disable_interrupt(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) int pciehp_power_on_slot(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) void pciehp_power_off_slot(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) void pciehp_get_power_status(struct controller *ctrl, u8 *status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define INDICATOR_NOOP -1	/* Leave indicator unchanged */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) void pciehp_set_indicators(struct controller *ctrl, int pwr, int attn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) void pciehp_get_latch_status(struct controller *ctrl, u8 *status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) int pciehp_query_power_fault(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) int pciehp_card_present(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) int pciehp_card_present_or_link_active(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) int pciehp_check_link_status(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int pciehp_check_link_active(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) void pciehp_release_ctrl(struct controller *ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) int pciehp_sysfs_enable_slot(struct hotplug_slot *hotplug_slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) int pciehp_sysfs_disable_slot(struct hotplug_slot *hotplug_slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) int pciehp_reset_slot(struct hotplug_slot *hotplug_slot, int probe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) int pciehp_get_attention_status(struct hotplug_slot *hotplug_slot, u8 *status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int pciehp_set_raw_indicator_status(struct hotplug_slot *h_slot, u8 status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) int pciehp_get_raw_indicator_status(struct hotplug_slot *h_slot, u8 *status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static inline const char *slot_name(struct controller *ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	return hotplug_slot_name(&ctrl->hotplug_slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static inline struct controller *to_ctrl(struct hotplug_slot *hotplug_slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	return container_of(hotplug_slot, struct controller, hotplug_slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) #endif				/* _PCIEHP_H */