Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * RapidIO driver support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright 2005 MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Matt Porter <mporter@kernel.crashing.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/rio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/rio_ids.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/rio_drv.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include "rio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *  rio_match_device - Tell if a RIO device has a matching RIO device id structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  *  @id: the RIO device id structure to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *  @rdev: the RIO device structure to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *  Used from driver probe and bus matching to check whether a RIO device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *  matches a device id structure provided by a RIO driver. Returns the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *  matching &struct rio_device_id or %NULL if there is no match.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) static const struct rio_device_id *rio_match_device(const struct rio_device_id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 						    *id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 						    const struct rio_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	while (id->vid || id->asm_vid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		if (((id->vid == RIO_ANY_ID) || (id->vid == rdev->vid)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		    ((id->did == RIO_ANY_ID) || (id->did == rdev->did)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		    ((id->asm_vid == RIO_ANY_ID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		     || (id->asm_vid == rdev->asm_vid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		    && ((id->asm_did == RIO_ANY_ID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 			|| (id->asm_did == rdev->asm_did)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 			return id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		id++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  * rio_dev_get - Increments the reference count of the RIO device structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46)  * @rdev: RIO device being referenced
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * Each live reference to a device should be refcounted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  * Drivers for RIO devices should normally record such references in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  * their probe() methods, when they bind to a device, and release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * them by calling rio_dev_put(), in their disconnect() methods.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) struct rio_dev *rio_dev_get(struct rio_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	if (rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		get_device(&rdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	return rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  * rio_dev_put - Release a use of the RIO device structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  * @rdev: RIO device being disconnected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  * Must be called when a user of a device is finished with it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  * When the last user of the device calls this function, the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  * memory of the device is freed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) void rio_dev_put(struct rio_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	if (rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		put_device(&rdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78)  *  rio_device_probe - Tell if a RIO device structure has a matching RIO device id structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)  *  @dev: the RIO device structure to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)  * return 0 and set rio_dev->driver when drv claims rio_dev, else error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) static int rio_device_probe(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct rio_driver *rdrv = to_rio_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	struct rio_dev *rdev = to_rio_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	int error = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	const struct rio_device_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	if (!rdev->driver && rdrv->probe) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		if (!rdrv->id_table)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 			return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		id = rio_match_device(rdrv->id_table, rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		rio_dev_get(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		if (id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 			error = rdrv->probe(rdev, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		if (error >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 			rdev->driver = rdrv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 			error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 			rio_dev_put(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)  *  rio_device_remove - Remove a RIO device from the system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)  *  @dev: the RIO device structure to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)  * Remove a RIO device from the system. If it has an associated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)  * driver, then run the driver remove() method.  Then update
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)  * the reference count.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static int rio_device_remove(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	struct rio_dev *rdev = to_rio_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct rio_driver *rdrv = rdev->driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (rdrv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		if (rdrv->remove)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 			rdrv->remove(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		rdev->driver = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	rio_dev_put(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static void rio_device_shutdown(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	struct rio_dev *rdev = to_rio_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct rio_driver *rdrv = rdev->driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	dev_dbg(dev, "RIO: %s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (rdrv && rdrv->shutdown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		rdrv->shutdown(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)  *  rio_register_driver - register a new RIO driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)  *  @rdrv: the RIO driver structure to register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)  *  Adds a &struct rio_driver to the list of registered drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)  *  Returns a negative value on error, otherwise 0. If no error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)  *  occurred, the driver remains registered even if no device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)  *  was claimed during registration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) int rio_register_driver(struct rio_driver *rdrv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	/* initialize common driver fields */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	rdrv->driver.name = rdrv->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	rdrv->driver.bus = &rio_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	/* register with core */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	return driver_register(&rdrv->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)  *  rio_unregister_driver - unregister a RIO driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)  *  @rdrv: the RIO driver structure to unregister
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)  *  Deletes the &struct rio_driver from the list of registered RIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)  *  drivers, gives it a chance to clean up by calling its remove()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)  *  function for each device it was responsible for, and marks those
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)  *  devices as driverless.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) void rio_unregister_driver(struct rio_driver *rdrv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	driver_unregister(&rdrv->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) void rio_attach_device(struct rio_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	rdev->dev.bus = &rio_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) EXPORT_SYMBOL_GPL(rio_attach_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)  *  rio_match_bus - Tell if a RIO device structure has a matching RIO driver device id structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)  *  @dev: the standard device structure to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)  *  @drv: the standard driver structure containing the ids to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)  *  Used by a driver to check whether a RIO device present in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)  *  system is in its list of supported devices. Returns 1 if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)  *  there is a matching &struct rio_device_id or 0 if there is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)  *  no match.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static int rio_match_bus(struct device *dev, struct device_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	struct rio_dev *rdev = to_rio_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	struct rio_driver *rdrv = to_rio_driver(drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	const struct rio_device_id *id = rdrv->id_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	const struct rio_device_id *found_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	if (!id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	found_id = rio_match_device(id, rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (found_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)       out:return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) static int rio_uevent(struct device *dev, struct kobj_uevent_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	struct rio_dev *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	if (!dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	rdev = to_rio_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	if (!rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	if (add_uevent_var(env, "MODALIAS=rapidio:v%04Xd%04Xav%04Xad%04X",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			   rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) struct class rio_mport_class = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	.name		= "rapidio_port",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	.dev_groups	= rio_mport_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) EXPORT_SYMBOL_GPL(rio_mport_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct bus_type rio_bus_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	.name = "rapidio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	.match = rio_match_bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	.dev_groups = rio_dev_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	.bus_groups = rio_bus_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	.probe = rio_device_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	.remove = rio_device_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	.shutdown = rio_device_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	.uevent	= rio_uevent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)  *  rio_bus_init - Register the RapidIO bus with the device model
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)  *  Registers the RIO mport device class and RIO bus type with the Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)  *  device model.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static int __init rio_bus_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	ret = class_register(&rio_mport_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		ret = bus_register(&rio_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 			class_unregister(&rio_mport_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) postcore_initcall(rio_bus_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) EXPORT_SYMBOL_GPL(rio_register_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) EXPORT_SYMBOL_GPL(rio_unregister_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) EXPORT_SYMBOL_GPL(rio_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) EXPORT_SYMBOL_GPL(rio_dev_get);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) EXPORT_SYMBOL_GPL(rio_dev_put);