Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Greybus "Core" |
| 3 | * |
Alex Elder | 4441f47 | 2015-05-22 12:59:16 -0500 | [diff] [blame] | 4 | * Copyright 2014-2015 Google Inc. |
| 5 | * Copyright 2014-2015 Linaro Ltd. |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 6 | * |
| 7 | * Released under the GPLv2 only. |
| 8 | */ |
| 9 | |
| 10 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 11 | |
Bryan O'Donoghue | 5c8ad59 | 2015-09-18 16:38:45 +0100 | [diff] [blame] | 12 | #define CREATE_TRACE_POINTS |
Johan Hovold | 8ec589b | 2016-01-29 15:42:31 +0100 | [diff] [blame] | 13 | #include "firmware.h" |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 14 | #include "greybus.h" |
Bryan O'Donoghue | 5c8ad59 | 2015-09-18 16:38:45 +0100 | [diff] [blame] | 15 | #include "greybus_trace.h" |
Johan Hovold | 5dda7e5 | 2016-01-19 12:50:59 +0100 | [diff] [blame] | 16 | #include "legacy.h" |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 17 | |
Bryan O'Donoghue | 32b2b16 | 2015-09-22 18:06:38 -0700 | [diff] [blame] | 18 | EXPORT_TRACEPOINT_SYMBOL_GPL(gb_host_device_send); |
| 19 | EXPORT_TRACEPOINT_SYMBOL_GPL(gb_host_device_recv); |
| 20 | |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 21 | /* Allow greybus to be disabled at boot if needed */ |
| 22 | static bool nogreybus; |
| 23 | #ifdef MODULE |
| 24 | module_param(nogreybus, bool, 0444); |
| 25 | #else |
Viresh Kumar | 8597e6b | 2014-10-20 16:45:50 +0530 | [diff] [blame] | 26 | core_param(nogreybus, nogreybus, bool, 0444); |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 27 | #endif |
| 28 | int greybus_disabled(void) |
| 29 | { |
| 30 | return nogreybus; |
| 31 | } |
| 32 | EXPORT_SYMBOL_GPL(greybus_disabled); |
| 33 | |
Johan Hovold | 700001a | 2015-11-21 10:52:03 +0100 | [diff] [blame] | 34 | static int greybus_match_one_id(struct gb_bundle *bundle, |
| 35 | const struct greybus_bundle_id *id) |
| 36 | { |
| 37 | if ((id->match_flags & GREYBUS_ID_MATCH_VENDOR) && |
Johan Hovold | 9f59263 | 2015-11-25 15:58:56 +0100 | [diff] [blame] | 38 | (id->vendor != bundle->intf->vendor_id)) |
Johan Hovold | 700001a | 2015-11-21 10:52:03 +0100 | [diff] [blame] | 39 | return 0; |
| 40 | |
| 41 | if ((id->match_flags & GREYBUS_ID_MATCH_PRODUCT) && |
Johan Hovold | 9f59263 | 2015-11-25 15:58:56 +0100 | [diff] [blame] | 42 | (id->product != bundle->intf->product_id)) |
Johan Hovold | 700001a | 2015-11-21 10:52:03 +0100 | [diff] [blame] | 43 | return 0; |
| 44 | |
| 45 | if ((id->match_flags & GREYBUS_ID_MATCH_CLASS) && |
| 46 | (id->class != bundle->class)) |
| 47 | return 0; |
| 48 | |
| 49 | return 1; |
| 50 | } |
| 51 | |
| 52 | static const struct greybus_bundle_id * |
| 53 | greybus_match_id(struct gb_bundle *bundle, const struct greybus_bundle_id *id) |
| 54 | { |
| 55 | if (id == NULL) |
| 56 | return NULL; |
| 57 | |
| 58 | for (; id->vendor || id->product || id->class || id->driver_info; |
| 59 | id++) { |
| 60 | if (greybus_match_one_id(bundle, id)) |
| 61 | return id; |
| 62 | } |
| 63 | |
| 64 | return NULL; |
| 65 | } |
| 66 | |
Alex Elder | 778c69c | 2014-09-22 19:19:03 -0500 | [diff] [blame] | 67 | static int greybus_module_match(struct device *dev, struct device_driver *drv) |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 68 | { |
Viresh Kumar | 95bd99d | 2014-11-14 17:24:59 +0530 | [diff] [blame] | 69 | struct greybus_driver *driver = to_greybus_driver(drv); |
Johan Hovold | b77f932 | 2016-01-08 20:13:41 +0100 | [diff] [blame] | 70 | struct gb_bundle *bundle; |
Viresh Kumar | 9f5f30e712 | 2015-04-01 20:32:04 +0530 | [diff] [blame] | 71 | const struct greybus_bundle_id *id; |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 72 | |
Johan Hovold | b77f932 | 2016-01-08 20:13:41 +0100 | [diff] [blame] | 73 | if (!is_gb_bundle(dev)) |
| 74 | return 0; |
| 75 | |
| 76 | bundle = to_gb_bundle(dev); |
| 77 | |
Johan Hovold | 700001a | 2015-11-21 10:52:03 +0100 | [diff] [blame] | 78 | id = greybus_match_id(bundle, driver->id_table); |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 79 | if (id) |
| 80 | return 1; |
Viresh Kumar | 696e0cc | 2014-11-21 11:26:30 +0530 | [diff] [blame] | 81 | /* FIXME - Dynamic ids? */ |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | static int greybus_uevent(struct device *dev, struct kobj_uevent_env *env) |
| 86 | { |
Johan Hovold | f0960d0 | 2015-12-03 19:18:02 +0100 | [diff] [blame] | 87 | struct gb_host_device *hd; |
Greg Kroah-Hartman | 4ab9b3c | 2014-12-19 14:56:31 -0800 | [diff] [blame] | 88 | struct gb_interface *intf = NULL; |
Greg Kroah-Hartman | 1db0a5f | 2014-12-12 17:10:17 -0500 | [diff] [blame] | 89 | struct gb_bundle *bundle = NULL; |
Johan Hovold | 88f7b96 | 2015-11-25 15:59:08 +0100 | [diff] [blame] | 90 | struct gb_svc *svc = NULL; |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 91 | |
Johan Hovold | 2adaefb | 2015-11-25 15:59:02 +0100 | [diff] [blame] | 92 | if (is_gb_host_device(dev)) { |
| 93 | hd = to_gb_host_device(dev); |
Greg Kroah-Hartman | df67155 | 2014-12-21 14:10:26 -0800 | [diff] [blame] | 94 | } else if (is_gb_interface(dev)) { |
Greg Kroah-Hartman | 4ab9b3c | 2014-12-19 14:56:31 -0800 | [diff] [blame] | 95 | intf = to_gb_interface(dev); |
Johan Hovold | f0960d0 | 2015-12-03 19:18:02 +0100 | [diff] [blame] | 96 | hd = intf->hd; |
Greg Kroah-Hartman | 1db0a5f | 2014-12-12 17:10:17 -0500 | [diff] [blame] | 97 | } else if (is_gb_bundle(dev)) { |
| 98 | bundle = to_gb_bundle(dev); |
Greg Kroah-Hartman | 4ab9b3c | 2014-12-19 14:56:31 -0800 | [diff] [blame] | 99 | intf = bundle->intf; |
Johan Hovold | f0960d0 | 2015-12-03 19:18:02 +0100 | [diff] [blame] | 100 | hd = intf->hd; |
Johan Hovold | 88f7b96 | 2015-11-25 15:59:08 +0100 | [diff] [blame] | 101 | } else if (is_gb_svc(dev)) { |
| 102 | svc = to_gb_svc(dev); |
Johan Hovold | f0960d0 | 2015-12-03 19:18:02 +0100 | [diff] [blame] | 103 | hd = svc->hd; |
Greg Kroah-Hartman | 0ac5a83 | 2014-11-15 12:12:16 -0800 | [diff] [blame] | 104 | } else { |
| 105 | dev_WARN(dev, "uevent for unknown greybus device \"type\"!\n"); |
| 106 | return -EINVAL; |
| 107 | } |
Greg Kroah-Hartman | f0f61b9 | 2014-10-24 17:34:46 +0800 | [diff] [blame] | 108 | |
Johan Hovold | f0960d0 | 2015-12-03 19:18:02 +0100 | [diff] [blame] | 109 | if (add_uevent_var(env, "BUS=%u", hd->bus_id)) |
| 110 | return -ENOMEM; |
| 111 | |
Johan Hovold | c5e6b05 | 2015-12-03 19:18:04 +0100 | [diff] [blame] | 112 | if (intf) { |
| 113 | if (add_uevent_var(env, "INTERFACE=%u", intf->interface_id)) |
| 114 | return -ENOMEM; |
Greg Kroah-Hartman | de14131 | 2016-01-11 19:24:54 -0800 | [diff] [blame] | 115 | if (add_uevent_var(env, "GREYBUS_ID=%04x/%04x", |
| 116 | (u16)(intf->vendor_id & 0xffff), |
| 117 | (u16)(intf->product_id & 0xffff))) |
| 118 | return -ENOMEM; |
Johan Hovold | c5e6b05 | 2015-12-03 19:18:04 +0100 | [diff] [blame] | 119 | } |
| 120 | |
Greg Kroah-Hartman | 1db0a5f | 2014-12-12 17:10:17 -0500 | [diff] [blame] | 121 | if (bundle) { |
Greg Kroah-Hartman | 0ac5a83 | 2014-11-15 12:12:16 -0800 | [diff] [blame] | 122 | // FIXME |
Greg Kroah-Hartman | 1db0a5f | 2014-12-12 17:10:17 -0500 | [diff] [blame] | 123 | // add a uevent that can "load" a bundle type |
Greg Kroah-Hartman | 0ac5a83 | 2014-11-15 12:12:16 -0800 | [diff] [blame] | 124 | // This is what we need to bind a driver to so use the info |
| 125 | // in gmod here as well |
Johan Hovold | c29c016 | 2015-12-04 10:44:24 +0100 | [diff] [blame] | 126 | |
| 127 | if (add_uevent_var(env, "BUNDLE=%u", bundle->id)) |
| 128 | return -ENOMEM; |
Greg Kroah-Hartman | 6ce4cc2 | 2016-01-21 18:13:41 -0800 | [diff] [blame] | 129 | if (add_uevent_var(env, "BUNDLE_CLASS=%02x", bundle->class)) |
| 130 | return -ENOMEM; |
Greg Kroah-Hartman | 0ac5a83 | 2014-11-15 12:12:16 -0800 | [diff] [blame] | 131 | } |
| 132 | |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 133 | return 0; |
| 134 | } |
| 135 | |
Greg Kroah-Hartman | f0f61b9 | 2014-10-24 17:34:46 +0800 | [diff] [blame] | 136 | struct bus_type greybus_bus_type = { |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 137 | .name = "greybus", |
Alex Elder | 778c69c | 2014-09-22 19:19:03 -0500 | [diff] [blame] | 138 | .match = greybus_module_match, |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 139 | .uevent = greybus_uevent, |
| 140 | }; |
| 141 | |
| 142 | static int greybus_probe(struct device *dev) |
| 143 | { |
| 144 | struct greybus_driver *driver = to_greybus_driver(dev->driver); |
Viresh Kumar | 9f5f30e712 | 2015-04-01 20:32:04 +0530 | [diff] [blame] | 145 | struct gb_bundle *bundle = to_gb_bundle(dev); |
| 146 | const struct greybus_bundle_id *id; |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 147 | int retval; |
| 148 | |
| 149 | /* match id */ |
Johan Hovold | 700001a | 2015-11-21 10:52:03 +0100 | [diff] [blame] | 150 | id = greybus_match_id(bundle, driver->id_table); |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 151 | if (!id) |
| 152 | return -ENODEV; |
| 153 | |
Viresh Kumar | 9f5f30e712 | 2015-04-01 20:32:04 +0530 | [diff] [blame] | 154 | retval = driver->probe(bundle, id); |
Johan Hovold | 98fdf5a | 2016-01-21 17:34:09 +0100 | [diff] [blame] | 155 | if (retval) { |
| 156 | /* |
| 157 | * Catch buggy drivers that fail to destroy their connections. |
| 158 | */ |
| 159 | WARN_ON(!list_empty(&bundle->connections)); |
| 160 | |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 161 | return retval; |
Johan Hovold | 98fdf5a | 2016-01-21 17:34:09 +0100 | [diff] [blame] | 162 | } |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 163 | |
| 164 | return 0; |
| 165 | } |
| 166 | |
| 167 | static int greybus_remove(struct device *dev) |
| 168 | { |
| 169 | struct greybus_driver *driver = to_greybus_driver(dev->driver); |
Viresh Kumar | 9f5f30e712 | 2015-04-01 20:32:04 +0530 | [diff] [blame] | 170 | struct gb_bundle *bundle = to_gb_bundle(dev); |
Johan Hovold | fa8369c | 2016-01-19 12:51:09 +0100 | [diff] [blame] | 171 | struct gb_connection *connection; |
| 172 | |
Johan Hovold | 47a2e67 | 2016-01-19 12:51:18 +0100 | [diff] [blame] | 173 | list_for_each_entry(connection, &bundle->connections, bundle_links) { |
| 174 | if (bundle->intf->disconnected) |
| 175 | gb_connection_disable(connection); |
| 176 | else |
| 177 | gb_connection_disable_rx(connection); |
| 178 | } |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 179 | |
Viresh Kumar | 9f5f30e712 | 2015-04-01 20:32:04 +0530 | [diff] [blame] | 180 | driver->disconnect(bundle); |
Johan Hovold | 02a54dd | 2016-01-19 12:51:10 +0100 | [diff] [blame] | 181 | |
Johan Hovold | 98fdf5a | 2016-01-21 17:34:09 +0100 | [diff] [blame] | 182 | /* Catch buggy drivers that fail to destroy their connections. */ |
| 183 | WARN_ON(!list_empty(&bundle->connections)); |
Johan Hovold | 02a54dd | 2016-01-19 12:51:10 +0100 | [diff] [blame] | 184 | |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | int greybus_register_driver(struct greybus_driver *driver, struct module *owner, |
| 189 | const char *mod_name) |
| 190 | { |
| 191 | int retval; |
| 192 | |
| 193 | if (greybus_disabled()) |
| 194 | return -ENODEV; |
| 195 | |
Johan Hovold | 3c48d1b | 2016-01-08 20:13:42 +0100 | [diff] [blame] | 196 | driver->driver.bus = &greybus_bus_type; |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 197 | driver->driver.name = driver->name; |
| 198 | driver->driver.probe = greybus_probe; |
| 199 | driver->driver.remove = greybus_remove; |
| 200 | driver->driver.owner = owner; |
| 201 | driver->driver.mod_name = mod_name; |
| 202 | |
| 203 | retval = driver_register(&driver->driver); |
| 204 | if (retval) |
| 205 | return retval; |
| 206 | |
| 207 | pr_info("registered new driver %s\n", driver->name); |
| 208 | return 0; |
| 209 | } |
| 210 | EXPORT_SYMBOL_GPL(greybus_register_driver); |
| 211 | |
Alex Elder | fd1c2e5 | 2015-06-08 12:05:13 -0500 | [diff] [blame] | 212 | void greybus_deregister_driver(struct greybus_driver *driver) |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 213 | { |
| 214 | driver_unregister(&driver->driver); |
| 215 | } |
Alex Elder | fd1c2e5 | 2015-06-08 12:05:13 -0500 | [diff] [blame] | 216 | EXPORT_SYMBOL_GPL(greybus_deregister_driver); |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 217 | |
Greg Kroah-Hartman | 503c1cd | 2014-08-30 16:21:03 -0700 | [diff] [blame] | 218 | static int __init gb_init(void) |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 219 | { |
Greg Kroah-Hartman | db6e1fd | 2014-08-30 16:47:26 -0700 | [diff] [blame] | 220 | int retval; |
| 221 | |
Viresh Kumar | 337b068 | 2015-03-20 20:29:13 +0530 | [diff] [blame] | 222 | if (greybus_disabled()) |
| 223 | return -ENODEV; |
| 224 | |
Alex Elder | fb690ca | 2015-06-13 11:02:09 -0500 | [diff] [blame] | 225 | BUILD_BUG_ON(CPORT_ID_MAX >= (long)CPORT_ID_BAD); |
Alex Elder | 1bb3c72 | 2014-10-02 12:30:03 -0500 | [diff] [blame] | 226 | |
Greg Kroah-Hartman | 48f7047 | 2015-03-27 11:38:06 +0100 | [diff] [blame] | 227 | gb_debugfs_init(); |
Greg Kroah-Hartman | db6e1fd | 2014-08-30 16:47:26 -0700 | [diff] [blame] | 228 | |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 229 | retval = bus_register(&greybus_bus_type); |
Greg Kroah-Hartman | 168db1c | 2014-09-13 16:15:52 -0700 | [diff] [blame] | 230 | if (retval) { |
Alex Elder | f35ab90 | 2015-06-09 17:42:51 -0500 | [diff] [blame] | 231 | pr_err("bus_register failed (%d)\n", retval); |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 232 | goto error_bus; |
Greg Kroah-Hartman | 168db1c | 2014-09-13 16:15:52 -0700 | [diff] [blame] | 233 | } |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 234 | |
Johan Hovold | 2adaefb | 2015-11-25 15:59:02 +0100 | [diff] [blame] | 235 | retval = gb_hd_init(); |
| 236 | if (retval) { |
| 237 | pr_err("gb_hd_init failed (%d)\n", retval); |
| 238 | goto error_hd; |
| 239 | } |
| 240 | |
Alex Elder | 2eb585f | 2014-10-16 06:35:34 -0500 | [diff] [blame] | 241 | retval = gb_operation_init(); |
| 242 | if (retval) { |
Alex Elder | f35ab90 | 2015-06-09 17:42:51 -0500 | [diff] [blame] | 243 | pr_err("gb_operation_init failed (%d)\n", retval); |
Alex Elder | 2eb585f | 2014-10-16 06:35:34 -0500 | [diff] [blame] | 244 | goto error_operation; |
| 245 | } |
| 246 | |
Johan Hovold | 8ec589b | 2016-01-29 15:42:31 +0100 | [diff] [blame] | 247 | retval = gb_firmware_init(); |
Viresh Kumar | 90f1b61 | 2015-08-12 09:19:33 +0530 | [diff] [blame] | 248 | if (retval) { |
Johan Hovold | 8ec589b | 2016-01-29 15:42:31 +0100 | [diff] [blame] | 249 | pr_err("gb_firmware_init failed\n"); |
Viresh Kumar | 90f1b61 | 2015-08-12 09:19:33 +0530 | [diff] [blame] | 250 | goto error_firmware; |
| 251 | } |
| 252 | |
Johan Hovold | 5dda7e5 | 2016-01-19 12:50:59 +0100 | [diff] [blame] | 253 | retval = gb_legacy_init(); |
| 254 | if (retval) { |
| 255 | pr_err("gb_legacy_init failed\n"); |
| 256 | goto error_legacy; |
| 257 | } |
| 258 | |
Alex Elder | 19d03de | 2014-11-05 16:12:53 -0600 | [diff] [blame] | 259 | return 0; /* Success */ |
| 260 | |
Johan Hovold | 5dda7e5 | 2016-01-19 12:50:59 +0100 | [diff] [blame] | 261 | error_legacy: |
Johan Hovold | 8ec589b | 2016-01-29 15:42:31 +0100 | [diff] [blame] | 262 | gb_firmware_exit(); |
Viresh Kumar | 90f1b61 | 2015-08-12 09:19:33 +0530 | [diff] [blame] | 263 | error_firmware: |
Alex Elder | f35ab90 | 2015-06-09 17:42:51 -0500 | [diff] [blame] | 264 | gb_operation_exit(); |
Alex Elder | 2eb585f | 2014-10-16 06:35:34 -0500 | [diff] [blame] | 265 | error_operation: |
Johan Hovold | 2adaefb | 2015-11-25 15:59:02 +0100 | [diff] [blame] | 266 | gb_hd_exit(); |
| 267 | error_hd: |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 268 | bus_unregister(&greybus_bus_type); |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 269 | error_bus: |
Greg Kroah-Hartman | de536e3 | 2014-08-31 16:17:04 -0700 | [diff] [blame] | 270 | gb_debugfs_cleanup(); |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 271 | |
| 272 | return retval; |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 273 | } |
Viresh Kumar | d71aaf2 | 2015-03-19 17:02:49 +0530 | [diff] [blame] | 274 | module_init(gb_init); |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 275 | |
Greg Kroah-Hartman | 503c1cd | 2014-08-30 16:21:03 -0700 | [diff] [blame] | 276 | static void __exit gb_exit(void) |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 277 | { |
Johan Hovold | 5dda7e5 | 2016-01-19 12:50:59 +0100 | [diff] [blame] | 278 | gb_legacy_exit(); |
Johan Hovold | 8ec589b | 2016-01-29 15:42:31 +0100 | [diff] [blame] | 279 | gb_firmware_exit(); |
Alex Elder | 2eb585f | 2014-10-16 06:35:34 -0500 | [diff] [blame] | 280 | gb_operation_exit(); |
Johan Hovold | 2adaefb | 2015-11-25 15:59:02 +0100 | [diff] [blame] | 281 | gb_hd_exit(); |
Greg Kroah-Hartman | 27fb831 | 2014-08-31 13:54:59 -0700 | [diff] [blame] | 282 | bus_unregister(&greybus_bus_type); |
Greg Kroah-Hartman | de536e3 | 2014-08-31 16:17:04 -0700 | [diff] [blame] | 283 | gb_debugfs_cleanup(); |
Bryan O'Donoghue | 5c8ad59 | 2015-09-18 16:38:45 +0100 | [diff] [blame] | 284 | tracepoint_synchronize_unregister(); |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 285 | } |
Greg Kroah-Hartman | 199d68d | 2014-08-30 16:20:22 -0700 | [diff] [blame] | 286 | module_exit(gb_exit); |
Greg Kroah-Hartman | 6cf42a4 | 2015-04-13 19:51:33 +0200 | [diff] [blame] | 287 | MODULE_LICENSE("GPL v2"); |
Greg Kroah-Hartman | c8a797a | 2014-08-11 15:30:45 +0800 | [diff] [blame] | 288 | MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org>"); |