PCI: Fix kernel-doc formatting

Fix kernel-doc formatting throughout drivers/pci and related include files.
No change to functionality intended.

Check for warnings:

  $ find include drivers/pci -type f -path "*pci*.[ch]" | xargs scripts/kernel-doc -none

[bhelgaas: squashed to one commit]
Link: https://lore.kernel.org/r/20210509030237.368540-1-kw@linux.com
Link: https://lore.kernel.org/r/20210703151306.1922450-1-kw@linux.com
Link: https://lore.kernel.org/r/20210703151306.1922450-2-kw@linux.com
Link: https://lore.kernel.org/r/20210703151306.1922450-3-kw@linux.com
Link: https://lore.kernel.org/r/20210703151306.1922450-4-kw@linux.com
Link: https://lore.kernel.org/r/20210703151306.1922450-5-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/controller/cadence/pcie-cadence.h

@@ -263,9 +263,12 @@ struct cdns_pcie_ops {
  * struct cdns_pcie - private data for Cadence PCIe controller drivers
  * @reg_base: IO mapped register base
  * @mem_res: start/end offsets in the physical system memory to map PCI accesses
+ * @dev: PCIe controller
  * @is_rc: tell whether the PCIe controller mode is Root Complex or Endpoint.
- * @bus: In Root Complex mode, the bus number
- * @ops: Platform specific ops to control various inputs from Cadence PCIe
+ * @phy_count: number of supported PHY devices
+ * @phy: list of pointers to specific PHY control blocks
+ * @link: list of pointers to corresponding device link representations
+ * @ops: Platform-specific ops to control various inputs from Cadence PCIe
  *       wrapper
  */
 struct cdns_pcie {

drivers/pci/controller/pci-xgene.c

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0+
-/**
+/*
  * APM X-Gene PCIe Driver
  *
  * Copyright (c) 2014 Applied Micro Circuits Corporation.

drivers/pci/controller/pcie-iproc-msi.c

@@ -49,7 +49,7 @@ enum iproc_msi_reg {
 struct iproc_msi;
 
 /**
- * iProc MSI group
+ * struct iproc_msi_grp - iProc MSI group
  *
  * One MSI group is allocated per GIC interrupt, serviced by one iProc MSI
  * event queue.
@@ -65,7 +65,7 @@ struct iproc_msi_grp {
 };
 
 /**
- * iProc event queue based MSI
+ * struct iproc_msi - iProc event queue based MSI
  *
  * Only meant to be used on platforms without MSI support integrated into the
  * GIC.

drivers/pci/controller/pcie-iproc.c

@@ -89,8 +89,8 @@
 #define IPROC_PCIE_REG_INVALID		0xffff
 
 /**
- * iProc PCIe outbound mapping controller specific parameters
- *
+ * struct iproc_pcie_ob_map - iProc PCIe outbound mapping controller-specific
+ * parameters
  * @window_sizes: list of supported outbound mapping window sizes in MB
  * @nr_sizes: number of supported outbound mapping window sizes
  */
@@ -136,22 +136,20 @@ static const struct iproc_pcie_ob_map paxb_v2_ob_map[] = {
 };
 
 /**
- * iProc PCIe inbound mapping type
+ * enum iproc_pcie_ib_map_type - iProc PCIe inbound mapping type
+ * @IPROC_PCIE_IB_MAP_MEM: DDR memory
+ * @IPROC_PCIE_IB_MAP_IO: device I/O memory
+ * @IPROC_PCIE_IB_MAP_INVALID: invalid or unused
  */
 enum iproc_pcie_ib_map_type {
-	/* for DDR memory */
 	IPROC_PCIE_IB_MAP_MEM = 0,
-
-	/* for device I/O memory */
 	IPROC_PCIE_IB_MAP_IO,
-
-	/* invalid or unused */
 	IPROC_PCIE_IB_MAP_INVALID
 };
 
 /**
- * iProc PCIe inbound mapping controller specific parameters
- *
+ * struct iproc_pcie_ib_map - iProc PCIe inbound mapping controller-specific
+ * parameters
  * @type: inbound mapping region type
  * @size_unit: inbound mapping region size unit, could be SZ_1K, SZ_1M, or
  * SZ_1G
@@ -437,7 +435,7 @@ static inline void iproc_pcie_write_reg(struct iproc_pcie *pcie,
 	writel(val, pcie->base + offset);
 }
 
-/**
+/*
  * APB error forwarding can be disabled during access of configuration
  * registers of the endpoint device, to prevent unsupported requests
  * (typically seen during enumeration with multi-function devices) from
@@ -619,7 +617,7 @@ static int iproc_pcie_config_read(struct pci_bus *bus, unsigned int devfn,
 	return PCIBIOS_SUCCESSFUL;
 }
 
-/**
+/*
  * Note access to the configuration registers are protected at the higher layer
  * by 'pci_lock' in drivers/pci/access.c
  */
@@ -897,7 +895,7 @@ static inline int iproc_pcie_ob_write(struct iproc_pcie *pcie, int window_idx,
 	return 0;
 }
 
-/**
+/*
  * Some iProc SoCs require the SW to configure the outbound address mapping
  *
  * Outbound address translation:

drivers/pci/controller/pcie-iproc.h

@@ -7,7 +7,13 @@
 #define _PCIE_IPROC_H
 
 /**
- * iProc PCIe interface type
+ * enum iproc_pcie_type - iProc PCIe interface type
+ * @IPROC_PCIE_PAXB_BCMA: BCMA-based host controllers
+ * @IPROC_PCIE_PAXB:	  PAXB-based host controllers for
+ *			  NS, NSP, Cygnus, NS2, and Pegasus SOCs
+ * @IPROC_PCIE_PAXB_V2:   PAXB-based host controllers for Stingray SoCs
+ * @IPROC_PCIE_PAXC:	  PAXC-based host controllers
+ * @IPROC_PCIE_PAXC_V2:   PAXC-based host controllers (second generation)
  *
  * PAXB is the wrapper used in root complex that can be connected to an
  * external endpoint device.
@@ -24,7 +30,7 @@ enum iproc_pcie_type {
 };
 
 /**
- * iProc PCIe outbound mapping
+ * struct iproc_pcie_ob - iProc PCIe outbound mapping
  * @axi_offset: offset from the AXI address to the internal address used by
  * the iProc PCIe core
  * @nr_windows: total number of supported outbound mapping windows
@@ -35,7 +41,7 @@ struct iproc_pcie_ob {
 };
 
 /**
- * iProc PCIe inbound mapping
+ * struct iproc_pcie_ib - iProc PCIe inbound mapping
  * @nr_regions: total number of supported inbound mapping regions
  */
 struct iproc_pcie_ib {
@@ -47,13 +53,13 @@ struct iproc_pcie_ib_map;
 struct iproc_msi;
 
 /**
- * iProc PCIe device
- *
+ * struct iproc_pcie - iProc PCIe device
  * @dev: pointer to device data structure
  * @type: iProc PCIe interface type
  * @reg_offsets: register offsets
  * @base: PCIe host controller I/O register base
  * @base_addr: PCIe host controller register base physical address
+ * @mem: host bridge memory window resource
  * @phy: optional PHY device that controls the Serdes
  * @map_irq: function callback to map interrupts
  * @ep_is_internal: indicates an internal emulated endpoint device is connected

drivers/pci/hotplug/cpqphp_core.c

@@ -296,9 +296,10 @@ static int ctrl_slot_cleanup(struct controller *ctrl)
  *
  * Won't work for more than one PCI-PCI bridge in a slot.
  *
- * @bus_num - bus number of PCI device
- * @dev_num - device number of PCI device
- * @slot - Pointer to u8 where slot number will	be returned
+ * @bus: pointer to the PCI bus structure
+ * @bus_num: bus number of PCI device
+ * @dev_num: device number of PCI device
+ * @slot: Pointer to u8 where slot number will	be returned
  *
  * Output:	SUCCESS or FAILURE
  */

drivers/pci/hotplug/cpqphp_ctrl.c

@@ -1877,7 +1877,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 
 /**
  * cpqhp_pushbutton_thread - handle pushbutton events
- * @slot: target slot (struct)
+ * @t: pointer to struct timer_list which holds all timer-related callbacks
  *
  * Scheduled procedure to handle blocking stuff for the pushbuttons.
  * Handles all pending events and exits.

drivers/pci/hotplug/pciehp.h

@@ -47,6 +47,9 @@ extern int pciehp_poll_time;
  * struct controller - PCIe hotplug controller
  * @pcie: pointer to the controller's PCIe port service device
  * @slot_cap: cached copy of the Slot Capabilities register
+ * @inband_presence_disabled: In-Band Presence Detect Disable supported by
+ *	controller and disabled per spec recommendation (PCIe r5.0, appendix I
+ *	implementation note)
  * @slot_ctrl: cached copy of the Slot Control register
  * @ctrl_lock: serializes writes to the Slot Control register
  * @cmd_started: jiffies when the Slot Control register was last written;

drivers/pci/pci.h

@@ -324,8 +324,8 @@ struct pci_sriov {
 /**
  * pci_dev_set_io_state - Set the new error state if possible.
  *
- * @dev - pci device to set new error_state
- * @new - the state we want dev to be in
+ * @dev: PCI device to set new error_state
+ * @new: the state we want dev to be in
  *
  * Must be called with device_lock held.
  *

include/linux/pci-ep-cfs.h

@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
-/**
+/*
  * PCI Endpoint ConfigFS header file
  *
  * Copyright (C) 2017 Texas Instruments

include/linux/pci-epc.h

@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-/**
+/*
  * PCI Endpoint *Controller* (EPC) header file
  *
  * Copyright (C) 2017 Texas Instruments
@@ -58,6 +58,7 @@ pci_epc_interface_string(enum pci_epc_interface_type type)
  * @map_msi_irq: ops to map physical address to MSI address and return MSI data
  * @start: ops to start the PCI link
  * @stop: ops to stop the PCI link
+ * @get_features: ops to get the features supported by the EPC
  * @owner: the module owner containing the ops
  */
 struct pci_epc_ops {
@@ -150,6 +151,8 @@ struct pci_epc {
 /**
  * struct pci_epc_features - features supported by a EPC device per function
  * @linkup_notifier: indicate if the EPC device can notify EPF driver on link up
+ * @core_init_notifier: indicate cores that can notify about their availability
+ *			for initialization
  * @msi_capable: indicate if the endpoint function has MSI capability
  * @msix_capable: indicate if the endpoint function has MSI-X capability
  * @reserved_bar: bitmap to indicate reserved BAR unavailable to function driver

include/linux/pci-epf.h

@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-/**
+/*
  * PCI Endpoint *Function* (EPF) header file
  *
  * Copyright (C) 2017 Texas Instruments
@@ -102,6 +102,8 @@ struct pci_epf_driver {
  * @phys_addr: physical address that should be mapped to the BAR
  * @addr: virtual address corresponding to the @phys_addr
  * @size: the size of the address space present in BAR
+ * @barno: BAR number
+ * @flags: flags that are set for the BAR
  */
 struct pci_epf_bar {
 	dma_addr_t	phys_addr;
@@ -118,6 +120,7 @@ struct pci_epf_bar {
  * @header: represents standard configuration header
  * @bar: represents the BAR of EPF device
  * @msi_interrupts: number of MSI interrupts required by this function
+ * @msix_interrupts: number of MSI-X interrupts required by this function
  * @func_no: unique function number within this endpoint device
  * @epc: the EPC device to which this EPF device is bound
  * @driver: the EPF driver to which this EPF device is bound

include/linux/pci_hotplug.h

@@ -50,6 +50,8 @@ struct hotplug_slot_ops {
 /**
  * struct hotplug_slot - used to register a physical slot with the hotplug pci core
  * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot
+ * @slot_list: internal list used to track hotplug PCI slots
+ * @pci_slot: represents a physical slot
  * @owner: The module owner of this structure
  * @mod_name: The module name (KBUILD_MODNAME) of this structure
  */

include/uapi/linux/pcitest.h

@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/**
+/*
  * pcitest.h - PCI test uapi defines
  *
  * Copyright (C) 2017 Texas Instruments