Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Device manager |
| 3 | * |
| 4 | * Copyright (c) 2013 Google, Inc |
| 5 | * |
| 6 | * (C) Copyright 2012 |
| 7 | * Pavel Herrmann <morpheus.ibis@gmail.com> |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0+ |
| 10 | */ |
| 11 | |
| 12 | #include <common.h> |
Vignesh R | 0dff370 | 2016-07-06 09:58:55 +0530 | [diff] [blame^] | 13 | #include <asm/io.h> |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 14 | #include <fdtdec.h> |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 15 | #include <fdt_support.h> |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 16 | #include <malloc.h> |
| 17 | #include <dm/device.h> |
| 18 | #include <dm/device-internal.h> |
| 19 | #include <dm/lists.h> |
Masahiro Yamada | f8efa63 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 20 | #include <dm/pinctrl.h> |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 21 | #include <dm/platdata.h> |
| 22 | #include <dm/uclass.h> |
| 23 | #include <dm/uclass-internal.h> |
| 24 | #include <dm/util.h> |
| 25 | #include <linux/err.h> |
| 26 | #include <linux/list.h> |
| 27 | |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 28 | DECLARE_GLOBAL_DATA_PTR; |
| 29 | |
Stephen Warren | 8c93df1 | 2016-05-11 15:26:24 -0600 | [diff] [blame] | 30 | static int device_bind_common(struct udevice *parent, const struct driver *drv, |
| 31 | const char *name, void *platdata, |
| 32 | ulong driver_data, int of_offset, |
| 33 | struct udevice **devp) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 34 | { |
Heiko Schocher | b74fcb4 | 2014-05-22 12:43:05 +0200 | [diff] [blame] | 35 | struct udevice *dev; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 36 | struct uclass *uc; |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 37 | int size, ret = 0; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 38 | |
Masahiro Yamada | e1cc1f0 | 2015-08-27 12:44:28 +0900 | [diff] [blame] | 39 | if (devp) |
| 40 | *devp = NULL; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 41 | if (!name) |
| 42 | return -EINVAL; |
| 43 | |
| 44 | ret = uclass_get(drv->id, &uc); |
Simon Glass | 43313de | 2015-08-30 16:55:16 -0600 | [diff] [blame] | 45 | if (ret) { |
| 46 | debug("Missing uclass for driver %s\n", drv->name); |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 47 | return ret; |
Simon Glass | 43313de | 2015-08-30 16:55:16 -0600 | [diff] [blame] | 48 | } |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 49 | |
Heiko Schocher | b74fcb4 | 2014-05-22 12:43:05 +0200 | [diff] [blame] | 50 | dev = calloc(1, sizeof(struct udevice)); |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 51 | if (!dev) |
| 52 | return -ENOMEM; |
| 53 | |
| 54 | INIT_LIST_HEAD(&dev->sibling_node); |
| 55 | INIT_LIST_HEAD(&dev->child_head); |
| 56 | INIT_LIST_HEAD(&dev->uclass_node); |
Masahiro Yamada | 029bfca | 2015-07-25 21:52:37 +0900 | [diff] [blame] | 57 | #ifdef CONFIG_DEVRES |
Masahiro Yamada | 8b15b16 | 2015-07-25 21:52:35 +0900 | [diff] [blame] | 58 | INIT_LIST_HEAD(&dev->devres_head); |
Masahiro Yamada | 029bfca | 2015-07-25 21:52:37 +0900 | [diff] [blame] | 59 | #endif |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 60 | dev->platdata = platdata; |
Stephen Warren | 8c93df1 | 2016-05-11 15:26:24 -0600 | [diff] [blame] | 61 | dev->driver_data = driver_data; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 62 | dev->name = name; |
| 63 | dev->of_offset = of_offset; |
| 64 | dev->parent = parent; |
| 65 | dev->driver = drv; |
| 66 | dev->uclass = uc; |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 67 | |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 68 | dev->seq = -1; |
Simon Glass | 0ccb097 | 2015-01-25 08:27:05 -0700 | [diff] [blame] | 69 | dev->req_seq = -1; |
Nathan Rossi | 7fa6ff4 | 2016-01-08 03:00:45 +1000 | [diff] [blame] | 70 | if (CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(DM_SEQ_ALIAS)) { |
Simon Glass | 1bd3deb | 2015-02-27 22:06:30 -0700 | [diff] [blame] | 71 | /* |
Stefan Roese | 9d4ce6b | 2016-03-16 09:58:01 +0100 | [diff] [blame] | 72 | * Some devices, such as a SPI bus, I2C bus and serial ports |
| 73 | * are numbered using aliases. |
| 74 | * |
| 75 | * This is just a 'requested' sequence, and will be |
| 76 | * resolved (and ->seq updated) when the device is probed. |
| 77 | */ |
Simon Glass | 1bd3deb | 2015-02-27 22:06:30 -0700 | [diff] [blame] | 78 | if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) { |
| 79 | if (uc->uc_drv->name && of_offset != -1) { |
| 80 | fdtdec_get_alias_seq(gd->fdt_blob, |
| 81 | uc->uc_drv->name, of_offset, |
| 82 | &dev->req_seq); |
| 83 | } |
Simon Glass | 0ccb097 | 2015-01-25 08:27:05 -0700 | [diff] [blame] | 84 | } |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 85 | } |
Simon Glass | 1bd3deb | 2015-02-27 22:06:30 -0700 | [diff] [blame] | 86 | |
Simon Glass | ba75049 | 2015-01-25 08:27:00 -0700 | [diff] [blame] | 87 | if (!dev->platdata && drv->platdata_auto_alloc_size) { |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 88 | dev->flags |= DM_FLAG_ALLOC_PDATA; |
Simon Glass | ba75049 | 2015-01-25 08:27:00 -0700 | [diff] [blame] | 89 | dev->platdata = calloc(1, drv->platdata_auto_alloc_size); |
| 90 | if (!dev->platdata) { |
| 91 | ret = -ENOMEM; |
| 92 | goto fail_alloc1; |
| 93 | } |
| 94 | } |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 95 | |
| 96 | size = uc->uc_drv->per_device_platdata_auto_alloc_size; |
| 97 | if (size) { |
| 98 | dev->flags |= DM_FLAG_ALLOC_UCLASS_PDATA; |
| 99 | dev->uclass_platdata = calloc(1, size); |
| 100 | if (!dev->uclass_platdata) { |
| 101 | ret = -ENOMEM; |
| 102 | goto fail_alloc2; |
| 103 | } |
| 104 | } |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 105 | |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 106 | if (parent) { |
| 107 | size = parent->driver->per_child_platdata_auto_alloc_size; |
Simon Glass | 57f9540 | 2015-01-25 08:27:02 -0700 | [diff] [blame] | 108 | if (!size) { |
| 109 | size = parent->uclass->uc_drv-> |
| 110 | per_child_platdata_auto_alloc_size; |
| 111 | } |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 112 | if (size) { |
| 113 | dev->flags |= DM_FLAG_ALLOC_PARENT_PDATA; |
| 114 | dev->parent_platdata = calloc(1, size); |
| 115 | if (!dev->parent_platdata) { |
| 116 | ret = -ENOMEM; |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 117 | goto fail_alloc3; |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 118 | } |
| 119 | } |
| 120 | } |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 121 | |
| 122 | /* put dev into parent's successor list */ |
| 123 | if (parent) |
| 124 | list_add_tail(&dev->sibling_node, &parent->child_head); |
| 125 | |
| 126 | ret = uclass_bind_device(dev); |
| 127 | if (ret) |
Simon Glass | 4ebe01b | 2015-01-25 08:26:59 -0700 | [diff] [blame] | 128 | goto fail_uclass_bind; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 129 | |
| 130 | /* if we fail to bind we remove device from successors and free it */ |
| 131 | if (drv->bind) { |
| 132 | ret = drv->bind(dev); |
Simon Glass | 4ebe01b | 2015-01-25 08:26:59 -0700 | [diff] [blame] | 133 | if (ret) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 134 | goto fail_bind; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 135 | } |
Simon Glass | a4a51a0 | 2015-01-25 08:27:03 -0700 | [diff] [blame] | 136 | if (parent && parent->driver->child_post_bind) { |
| 137 | ret = parent->driver->child_post_bind(dev); |
| 138 | if (ret) |
| 139 | goto fail_child_post_bind; |
| 140 | } |
Simon Glass | 286863d | 2016-01-05 09:30:59 -0700 | [diff] [blame] | 141 | if (uc->uc_drv->post_bind) { |
| 142 | ret = uc->uc_drv->post_bind(dev); |
| 143 | if (ret) |
| 144 | goto fail_uclass_post_bind; |
| 145 | } |
Simon Glass | a4a51a0 | 2015-01-25 08:27:03 -0700 | [diff] [blame] | 146 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 147 | if (parent) |
| 148 | dm_dbg("Bound device %s to %s\n", dev->name, parent->name); |
Masahiro Yamada | e1cc1f0 | 2015-08-27 12:44:28 +0900 | [diff] [blame] | 149 | if (devp) |
| 150 | *devp = dev; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 151 | |
Masahiro Yamada | bdbb5dd | 2015-07-25 21:52:34 +0900 | [diff] [blame] | 152 | dev->flags |= DM_FLAG_BOUND; |
| 153 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 154 | return 0; |
| 155 | |
Simon Glass | 286863d | 2016-01-05 09:30:59 -0700 | [diff] [blame] | 156 | fail_uclass_post_bind: |
| 157 | /* There is no child unbind() method, so no clean-up required */ |
Simon Glass | a4a51a0 | 2015-01-25 08:27:03 -0700 | [diff] [blame] | 158 | fail_child_post_bind: |
Masahiro Yamada | 04aa00d | 2015-08-12 07:31:52 +0900 | [diff] [blame] | 159 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
Simon Glass | e70a4f4 | 2015-02-27 22:06:33 -0700 | [diff] [blame] | 160 | if (drv->unbind && drv->unbind(dev)) { |
| 161 | dm_warn("unbind() method failed on dev '%s' on error path\n", |
| 162 | dev->name); |
| 163 | } |
Simon Glass | a4a51a0 | 2015-01-25 08:27:03 -0700 | [diff] [blame] | 164 | } |
| 165 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 166 | fail_bind: |
Masahiro Yamada | 04aa00d | 2015-08-12 07:31:52 +0900 | [diff] [blame] | 167 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
Simon Glass | e70a4f4 | 2015-02-27 22:06:33 -0700 | [diff] [blame] | 168 | if (uclass_unbind_device(dev)) { |
| 169 | dm_warn("Failed to unbind dev '%s' on error path\n", |
| 170 | dev->name); |
| 171 | } |
Simon Glass | 4ebe01b | 2015-01-25 08:26:59 -0700 | [diff] [blame] | 172 | } |
| 173 | fail_uclass_bind: |
Masahiro Yamada | 04aa00d | 2015-08-12 07:31:52 +0900 | [diff] [blame] | 174 | if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) { |
Simon Glass | e70a4f4 | 2015-02-27 22:06:33 -0700 | [diff] [blame] | 175 | list_del(&dev->sibling_node); |
| 176 | if (dev->flags & DM_FLAG_ALLOC_PARENT_PDATA) { |
| 177 | free(dev->parent_platdata); |
| 178 | dev->parent_platdata = NULL; |
| 179 | } |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 180 | } |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 181 | fail_alloc3: |
| 182 | if (dev->flags & DM_FLAG_ALLOC_UCLASS_PDATA) { |
| 183 | free(dev->uclass_platdata); |
| 184 | dev->uclass_platdata = NULL; |
| 185 | } |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 186 | fail_alloc2: |
Simon Glass | ba75049 | 2015-01-25 08:27:00 -0700 | [diff] [blame] | 187 | if (dev->flags & DM_FLAG_ALLOC_PDATA) { |
| 188 | free(dev->platdata); |
| 189 | dev->platdata = NULL; |
| 190 | } |
| 191 | fail_alloc1: |
Masahiro Yamada | 8b15b16 | 2015-07-25 21:52:35 +0900 | [diff] [blame] | 192 | devres_release_all(dev); |
| 193 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 194 | free(dev); |
Simon Glass | 4ebe01b | 2015-01-25 08:26:59 -0700 | [diff] [blame] | 195 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 196 | return ret; |
| 197 | } |
| 198 | |
Stephen Warren | 8c93df1 | 2016-05-11 15:26:24 -0600 | [diff] [blame] | 199 | int device_bind_with_driver_data(struct udevice *parent, |
| 200 | const struct driver *drv, const char *name, |
| 201 | ulong driver_data, int of_offset, |
| 202 | struct udevice **devp) |
| 203 | { |
| 204 | return device_bind_common(parent, drv, name, NULL, driver_data, |
| 205 | of_offset, devp); |
| 206 | } |
| 207 | |
| 208 | int device_bind(struct udevice *parent, const struct driver *drv, |
| 209 | const char *name, void *platdata, int of_offset, |
| 210 | struct udevice **devp) |
| 211 | { |
| 212 | return device_bind_common(parent, drv, name, platdata, 0, of_offset, |
| 213 | devp); |
| 214 | } |
| 215 | |
Simon Glass | fef72b7 | 2014-07-23 06:55:03 -0600 | [diff] [blame] | 216 | int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, |
| 217 | const struct driver_info *info, struct udevice **devp) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 218 | { |
| 219 | struct driver *drv; |
| 220 | |
| 221 | drv = lists_driver_lookup_name(info->name); |
| 222 | if (!drv) |
| 223 | return -ENOENT; |
Simon Glass | fef72b7 | 2014-07-23 06:55:03 -0600 | [diff] [blame] | 224 | if (pre_reloc_only && !(drv->flags & DM_FLAG_PRE_RELOC)) |
| 225 | return -EPERM; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 226 | |
| 227 | return device_bind(parent, drv, info->name, (void *)info->platdata, |
| 228 | -1, devp); |
| 229 | } |
| 230 | |
Simon Glass | 825d3f9 | 2015-03-25 12:21:53 -0600 | [diff] [blame] | 231 | static void *alloc_priv(int size, uint flags) |
| 232 | { |
| 233 | void *priv; |
| 234 | |
| 235 | if (flags & DM_FLAG_ALLOC_PRIV_DMA) { |
| 236 | priv = memalign(ARCH_DMA_MINALIGN, size); |
| 237 | if (priv) |
| 238 | memset(priv, '\0', size); |
| 239 | } else { |
| 240 | priv = calloc(1, size); |
| 241 | } |
| 242 | |
| 243 | return priv; |
| 244 | } |
| 245 | |
Simon Glass | 6142d75 | 2016-01-25 14:58:42 -0700 | [diff] [blame] | 246 | int device_probe(struct udevice *dev) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 247 | { |
Simon Glass | a626dff | 2015-03-25 12:21:54 -0600 | [diff] [blame] | 248 | const struct driver *drv; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 249 | int size = 0; |
| 250 | int ret; |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 251 | int seq; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 252 | |
| 253 | if (!dev) |
| 254 | return -EINVAL; |
| 255 | |
| 256 | if (dev->flags & DM_FLAG_ACTIVATED) |
| 257 | return 0; |
| 258 | |
| 259 | drv = dev->driver; |
| 260 | assert(drv); |
| 261 | |
Bin Meng | 82cdd78 | 2015-08-24 01:14:02 -0700 | [diff] [blame] | 262 | /* Allocate private data if requested and not reentered */ |
| 263 | if (drv->priv_auto_alloc_size && !dev->priv) { |
Simon Glass | 825d3f9 | 2015-03-25 12:21:53 -0600 | [diff] [blame] | 264 | dev->priv = alloc_priv(drv->priv_auto_alloc_size, drv->flags); |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 265 | if (!dev->priv) { |
| 266 | ret = -ENOMEM; |
| 267 | goto fail; |
| 268 | } |
| 269 | } |
Bin Meng | 82cdd78 | 2015-08-24 01:14:02 -0700 | [diff] [blame] | 270 | /* Allocate private data if requested and not reentered */ |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 271 | size = dev->uclass->uc_drv->per_device_auto_alloc_size; |
Bin Meng | 82cdd78 | 2015-08-24 01:14:02 -0700 | [diff] [blame] | 272 | if (size && !dev->uclass_priv) { |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 273 | dev->uclass_priv = calloc(1, size); |
| 274 | if (!dev->uclass_priv) { |
| 275 | ret = -ENOMEM; |
| 276 | goto fail; |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /* Ensure all parents are probed */ |
| 281 | if (dev->parent) { |
Simon Glass | 60d971b | 2014-07-23 06:55:20 -0600 | [diff] [blame] | 282 | size = dev->parent->driver->per_child_auto_alloc_size; |
Simon Glass | c23b428 | 2015-01-25 08:27:06 -0700 | [diff] [blame] | 283 | if (!size) { |
| 284 | size = dev->parent->uclass->uc_drv-> |
| 285 | per_child_auto_alloc_size; |
| 286 | } |
Bin Meng | 82cdd78 | 2015-08-24 01:14:02 -0700 | [diff] [blame] | 287 | if (size && !dev->parent_priv) { |
Simon Glass | 825d3f9 | 2015-03-25 12:21:53 -0600 | [diff] [blame] | 288 | dev->parent_priv = alloc_priv(size, drv->flags); |
Simon Glass | 60d971b | 2014-07-23 06:55:20 -0600 | [diff] [blame] | 289 | if (!dev->parent_priv) { |
| 290 | ret = -ENOMEM; |
| 291 | goto fail; |
| 292 | } |
| 293 | } |
| 294 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 295 | ret = device_probe(dev->parent); |
| 296 | if (ret) |
| 297 | goto fail; |
Bin Meng | 82cdd78 | 2015-08-24 01:14:02 -0700 | [diff] [blame] | 298 | |
| 299 | /* |
| 300 | * The device might have already been probed during |
| 301 | * the call to device_probe() on its parent device |
| 302 | * (e.g. PCI bridge devices). Test the flags again |
| 303 | * so that we don't mess up the device. |
| 304 | */ |
| 305 | if (dev->flags & DM_FLAG_ACTIVATED) |
| 306 | return 0; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 307 | } |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 308 | |
| 309 | seq = uclass_resolve_seq(dev); |
| 310 | if (seq < 0) { |
| 311 | ret = seq; |
| 312 | goto fail; |
| 313 | } |
| 314 | dev->seq = seq; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 315 | |
Simon Glass | 8b04e73 | 2015-03-25 12:21:56 -0600 | [diff] [blame] | 316 | dev->flags |= DM_FLAG_ACTIVATED; |
| 317 | |
Simon Glass | bb53bda | 2015-09-12 08:45:19 -0600 | [diff] [blame] | 318 | /* |
| 319 | * Process pinctrl for everything except the root device, and |
Simon Glass | 27ce962 | 2016-01-21 19:43:25 -0700 | [diff] [blame] | 320 | * continue regardless of the result of pinctrl. Don't process pinctrl |
| 321 | * settings for pinctrl devices since the device may not yet be |
| 322 | * probed. |
Simon Glass | bb53bda | 2015-09-12 08:45:19 -0600 | [diff] [blame] | 323 | */ |
Simon Glass | 27ce962 | 2016-01-21 19:43:25 -0700 | [diff] [blame] | 324 | if (dev->parent && device_get_uclass_id(dev) != UCLASS_PINCTRL) |
Simon Glass | bb53bda | 2015-09-12 08:45:19 -0600 | [diff] [blame] | 325 | pinctrl_select_state(dev, "default"); |
Masahiro Yamada | f8efa63 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 326 | |
Simon Glass | 9c1f382 | 2015-03-05 12:25:22 -0700 | [diff] [blame] | 327 | ret = uclass_pre_probe_device(dev); |
Simon Glass | 5104b98 | 2015-01-25 08:27:10 -0700 | [diff] [blame] | 328 | if (ret) |
| 329 | goto fail; |
| 330 | |
Simon Glass | d45560d | 2014-07-23 06:55:21 -0600 | [diff] [blame] | 331 | if (dev->parent && dev->parent->driver->child_pre_probe) { |
| 332 | ret = dev->parent->driver->child_pre_probe(dev); |
| 333 | if (ret) |
| 334 | goto fail; |
| 335 | } |
| 336 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 337 | if (drv->ofdata_to_platdata && dev->of_offset >= 0) { |
| 338 | ret = drv->ofdata_to_platdata(dev); |
| 339 | if (ret) |
| 340 | goto fail; |
| 341 | } |
| 342 | |
| 343 | if (drv->probe) { |
| 344 | ret = drv->probe(dev); |
Simon Glass | d02009d | 2015-03-05 12:25:21 -0700 | [diff] [blame] | 345 | if (ret) { |
| 346 | dev->flags &= ~DM_FLAG_ACTIVATED; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 347 | goto fail; |
Simon Glass | d02009d | 2015-03-05 12:25:21 -0700 | [diff] [blame] | 348 | } |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 349 | } |
| 350 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 351 | ret = uclass_post_probe_device(dev); |
Simon Glass | 8b04e73 | 2015-03-25 12:21:56 -0600 | [diff] [blame] | 352 | if (ret) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 353 | goto fail_uclass; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 354 | |
Peng Fan | 7cf58dd | 2016-03-12 13:17:38 +0800 | [diff] [blame] | 355 | if (dev->parent && device_get_uclass_id(dev) == UCLASS_PINCTRL) |
| 356 | pinctrl_select_state(dev, "default"); |
| 357 | |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 358 | return 0; |
| 359 | fail_uclass: |
| 360 | if (device_remove(dev)) { |
| 361 | dm_warn("%s: Device '%s' failed to remove on error path\n", |
| 362 | __func__, dev->name); |
| 363 | } |
| 364 | fail: |
Simon Glass | 8b04e73 | 2015-03-25 12:21:56 -0600 | [diff] [blame] | 365 | dev->flags &= ~DM_FLAG_ACTIVATED; |
| 366 | |
Simon Glass | db6f020 | 2014-07-23 06:55:12 -0600 | [diff] [blame] | 367 | dev->seq = -1; |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 368 | device_free(dev); |
| 369 | |
| 370 | return ret; |
| 371 | } |
| 372 | |
Heiko Schocher | b74fcb4 | 2014-05-22 12:43:05 +0200 | [diff] [blame] | 373 | void *dev_get_platdata(struct udevice *dev) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 374 | { |
| 375 | if (!dev) { |
Simon Glass | df1e072 | 2014-12-10 08:55:56 -0700 | [diff] [blame] | 376 | dm_warn("%s: null device\n", __func__); |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 377 | return NULL; |
| 378 | } |
| 379 | |
| 380 | return dev->platdata; |
| 381 | } |
| 382 | |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 383 | void *dev_get_parent_platdata(struct udevice *dev) |
| 384 | { |
| 385 | if (!dev) { |
Simon Glass | cdfc505 | 2015-07-06 16:47:40 -0600 | [diff] [blame] | 386 | dm_warn("%s: null device\n", __func__); |
Simon Glass | 11b6173 | 2015-01-25 08:27:01 -0700 | [diff] [blame] | 387 | return NULL; |
| 388 | } |
| 389 | |
| 390 | return dev->parent_platdata; |
| 391 | } |
| 392 | |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 393 | void *dev_get_uclass_platdata(struct udevice *dev) |
| 394 | { |
| 395 | if (!dev) { |
Simon Glass | cdfc505 | 2015-07-06 16:47:40 -0600 | [diff] [blame] | 396 | dm_warn("%s: null device\n", __func__); |
Przemyslaw Marczak | d850e67 | 2015-04-15 13:07:18 +0200 | [diff] [blame] | 397 | return NULL; |
| 398 | } |
| 399 | |
| 400 | return dev->uclass_platdata; |
| 401 | } |
| 402 | |
Heiko Schocher | b74fcb4 | 2014-05-22 12:43:05 +0200 | [diff] [blame] | 403 | void *dev_get_priv(struct udevice *dev) |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 404 | { |
| 405 | if (!dev) { |
Simon Glass | df1e072 | 2014-12-10 08:55:56 -0700 | [diff] [blame] | 406 | dm_warn("%s: null device\n", __func__); |
Simon Glass | dd6ab88 | 2014-02-26 15:59:18 -0700 | [diff] [blame] | 407 | return NULL; |
| 408 | } |
| 409 | |
| 410 | return dev->priv; |
| 411 | } |
Simon Glass | 48d4e29 | 2014-07-23 06:55:19 -0600 | [diff] [blame] | 412 | |
Simon Glass | de0977b | 2015-03-05 12:25:20 -0700 | [diff] [blame] | 413 | void *dev_get_uclass_priv(struct udevice *dev) |
| 414 | { |
| 415 | if (!dev) { |
| 416 | dm_warn("%s: null device\n", __func__); |
| 417 | return NULL; |
| 418 | } |
| 419 | |
| 420 | return dev->uclass_priv; |
| 421 | } |
| 422 | |
Simon Glass | de44acf | 2015-09-28 23:32:01 -0600 | [diff] [blame] | 423 | void *dev_get_parent_priv(struct udevice *dev) |
Simon Glass | 60d971b | 2014-07-23 06:55:20 -0600 | [diff] [blame] | 424 | { |
| 425 | if (!dev) { |
Simon Glass | df1e072 | 2014-12-10 08:55:56 -0700 | [diff] [blame] | 426 | dm_warn("%s: null device\n", __func__); |
Simon Glass | 60d971b | 2014-07-23 06:55:20 -0600 | [diff] [blame] | 427 | return NULL; |
| 428 | } |
| 429 | |
| 430 | return dev->parent_priv; |
| 431 | } |
| 432 | |
Simon Glass | 48d4e29 | 2014-07-23 06:55:19 -0600 | [diff] [blame] | 433 | static int device_get_device_tail(struct udevice *dev, int ret, |
| 434 | struct udevice **devp) |
| 435 | { |
| 436 | if (ret) |
| 437 | return ret; |
| 438 | |
| 439 | ret = device_probe(dev); |
| 440 | if (ret) |
| 441 | return ret; |
| 442 | |
| 443 | *devp = dev; |
| 444 | |
| 445 | return 0; |
| 446 | } |
| 447 | |
| 448 | int device_get_child(struct udevice *parent, int index, struct udevice **devp) |
| 449 | { |
| 450 | struct udevice *dev; |
| 451 | |
| 452 | list_for_each_entry(dev, &parent->child_head, sibling_node) { |
| 453 | if (!index--) |
| 454 | return device_get_device_tail(dev, 0, devp); |
| 455 | } |
| 456 | |
| 457 | return -ENODEV; |
| 458 | } |
| 459 | |
| 460 | int device_find_child_by_seq(struct udevice *parent, int seq_or_req_seq, |
| 461 | bool find_req_seq, struct udevice **devp) |
| 462 | { |
| 463 | struct udevice *dev; |
| 464 | |
| 465 | *devp = NULL; |
| 466 | if (seq_or_req_seq == -1) |
| 467 | return -ENODEV; |
| 468 | |
| 469 | list_for_each_entry(dev, &parent->child_head, sibling_node) { |
| 470 | if ((find_req_seq ? dev->req_seq : dev->seq) == |
| 471 | seq_or_req_seq) { |
| 472 | *devp = dev; |
| 473 | return 0; |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | return -ENODEV; |
| 478 | } |
| 479 | |
| 480 | int device_get_child_by_seq(struct udevice *parent, int seq, |
| 481 | struct udevice **devp) |
| 482 | { |
| 483 | struct udevice *dev; |
| 484 | int ret; |
| 485 | |
| 486 | *devp = NULL; |
| 487 | ret = device_find_child_by_seq(parent, seq, false, &dev); |
| 488 | if (ret == -ENODEV) { |
| 489 | /* |
| 490 | * We didn't find it in probed devices. See if there is one |
| 491 | * that will request this seq if probed. |
| 492 | */ |
| 493 | ret = device_find_child_by_seq(parent, seq, true, &dev); |
| 494 | } |
| 495 | return device_get_device_tail(dev, ret, devp); |
| 496 | } |
| 497 | |
| 498 | int device_find_child_by_of_offset(struct udevice *parent, int of_offset, |
| 499 | struct udevice **devp) |
| 500 | { |
| 501 | struct udevice *dev; |
| 502 | |
| 503 | *devp = NULL; |
| 504 | |
| 505 | list_for_each_entry(dev, &parent->child_head, sibling_node) { |
| 506 | if (dev->of_offset == of_offset) { |
| 507 | *devp = dev; |
| 508 | return 0; |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | return -ENODEV; |
| 513 | } |
| 514 | |
Simon Glass | 861bc9f | 2015-06-23 15:38:38 -0600 | [diff] [blame] | 515 | int device_get_child_by_of_offset(struct udevice *parent, int node, |
Simon Glass | 48d4e29 | 2014-07-23 06:55:19 -0600 | [diff] [blame] | 516 | struct udevice **devp) |
| 517 | { |
| 518 | struct udevice *dev; |
| 519 | int ret; |
| 520 | |
| 521 | *devp = NULL; |
Simon Glass | 861bc9f | 2015-06-23 15:38:38 -0600 | [diff] [blame] | 522 | ret = device_find_child_by_of_offset(parent, node, &dev); |
Simon Glass | 48d4e29 | 2014-07-23 06:55:19 -0600 | [diff] [blame] | 523 | return device_get_device_tail(dev, ret, devp); |
| 524 | } |
Simon Glass | 44da735 | 2014-10-13 23:41:49 -0600 | [diff] [blame] | 525 | |
Simon Glass | ae2efac | 2015-06-23 15:38:37 -0600 | [diff] [blame] | 526 | static struct udevice *_device_find_global_by_of_offset(struct udevice *parent, |
| 527 | int of_offset) |
| 528 | { |
| 529 | struct udevice *dev, *found; |
| 530 | |
| 531 | if (parent->of_offset == of_offset) |
| 532 | return parent; |
| 533 | |
| 534 | list_for_each_entry(dev, &parent->child_head, sibling_node) { |
| 535 | found = _device_find_global_by_of_offset(dev, of_offset); |
| 536 | if (found) |
| 537 | return found; |
| 538 | } |
| 539 | |
| 540 | return NULL; |
| 541 | } |
| 542 | |
| 543 | int device_get_global_by_of_offset(int of_offset, struct udevice **devp) |
| 544 | { |
| 545 | struct udevice *dev; |
| 546 | |
| 547 | dev = _device_find_global_by_of_offset(gd->dm_root, of_offset); |
| 548 | return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); |
| 549 | } |
| 550 | |
Simon Glass | 44da735 | 2014-10-13 23:41:49 -0600 | [diff] [blame] | 551 | int device_find_first_child(struct udevice *parent, struct udevice **devp) |
| 552 | { |
| 553 | if (list_empty(&parent->child_head)) { |
| 554 | *devp = NULL; |
| 555 | } else { |
| 556 | *devp = list_first_entry(&parent->child_head, struct udevice, |
| 557 | sibling_node); |
| 558 | } |
| 559 | |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | int device_find_next_child(struct udevice **devp) |
| 564 | { |
| 565 | struct udevice *dev = *devp; |
| 566 | struct udevice *parent = dev->parent; |
| 567 | |
| 568 | if (list_is_last(&dev->sibling_node, &parent->child_head)) { |
| 569 | *devp = NULL; |
| 570 | } else { |
| 571 | *devp = list_entry(dev->sibling_node.next, struct udevice, |
| 572 | sibling_node); |
| 573 | } |
| 574 | |
| 575 | return 0; |
| 576 | } |
Simon Glass | 70c3a0e | 2014-11-11 10:46:18 -0700 | [diff] [blame] | 577 | |
Simon Glass | 43f488a | 2014-11-11 10:46:19 -0700 | [diff] [blame] | 578 | struct udevice *dev_get_parent(struct udevice *child) |
| 579 | { |
| 580 | return child->parent; |
| 581 | } |
| 582 | |
Simon Glass | 46227bd | 2015-03-25 12:21:55 -0600 | [diff] [blame] | 583 | ulong dev_get_driver_data(struct udevice *dev) |
Simon Glass | 70c3a0e | 2014-11-11 10:46:18 -0700 | [diff] [blame] | 584 | { |
Simon Glass | 46227bd | 2015-03-25 12:21:55 -0600 | [diff] [blame] | 585 | return dev->driver_data; |
Simon Glass | 70c3a0e | 2014-11-11 10:46:18 -0700 | [diff] [blame] | 586 | } |
Simon Glass | 98fd5d1 | 2015-01-25 08:27:04 -0700 | [diff] [blame] | 587 | |
Przemyslaw Marczak | d3ef0d7 | 2015-04-15 13:07:24 +0200 | [diff] [blame] | 588 | const void *dev_get_driver_ops(struct udevice *dev) |
| 589 | { |
| 590 | if (!dev || !dev->driver->ops) |
| 591 | return NULL; |
| 592 | |
| 593 | return dev->driver->ops; |
| 594 | } |
| 595 | |
Simon Glass | 98fd5d1 | 2015-01-25 08:27:04 -0700 | [diff] [blame] | 596 | enum uclass_id device_get_uclass_id(struct udevice *dev) |
| 597 | { |
| 598 | return dev->uclass->uc_drv->id; |
| 599 | } |
Peng Fan | 99b7235 | 2015-02-10 14:46:32 +0800 | [diff] [blame] | 600 | |
Przemyslaw Marczak | 5ed2e42 | 2015-04-15 13:07:25 +0200 | [diff] [blame] | 601 | const char *dev_get_uclass_name(struct udevice *dev) |
| 602 | { |
| 603 | if (!dev) |
| 604 | return NULL; |
| 605 | |
| 606 | return dev->uclass->uc_drv->name; |
| 607 | } |
| 608 | |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 609 | fdt_addr_t dev_get_addr_index(struct udevice *dev, int index) |
Peng Fan | 99b7235 | 2015-02-10 14:46:32 +0800 | [diff] [blame] | 610 | { |
Masahiro Yamada | 366b24f | 2015-08-12 07:31:55 +0900 | [diff] [blame] | 611 | #if CONFIG_IS_ENABLED(OF_CONTROL) |
Simon Glass | 59b6196 | 2015-07-07 20:53:44 -0600 | [diff] [blame] | 612 | fdt_addr_t addr; |
| 613 | |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 614 | if (CONFIG_IS_ENABLED(OF_TRANSLATE)) { |
| 615 | const fdt32_t *reg; |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 616 | int len = 0; |
| 617 | int na, ns; |
| 618 | |
| 619 | na = fdt_address_cells(gd->fdt_blob, dev->parent->of_offset); |
| 620 | if (na < 1) { |
| 621 | debug("bad #address-cells\n"); |
| 622 | return FDT_ADDR_T_NONE; |
| 623 | } |
| 624 | |
| 625 | ns = fdt_size_cells(gd->fdt_blob, dev->parent->of_offset); |
| 626 | if (ns < 0) { |
| 627 | debug("bad #size-cells\n"); |
| 628 | return FDT_ADDR_T_NONE; |
| 629 | } |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 630 | |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 631 | reg = fdt_getprop(gd->fdt_blob, dev->of_offset, "reg", &len); |
| 632 | if (!reg || (len <= (index * sizeof(fdt32_t) * (na + ns)))) { |
| 633 | debug("Req index out of range\n"); |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 634 | return FDT_ADDR_T_NONE; |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | reg += index * (na + ns); |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 638 | |
| 639 | /* |
| 640 | * Use the full-fledged translate function for complex |
| 641 | * bus setups. |
| 642 | */ |
Stefan Roese | a0ea0f9 | 2015-12-14 16:18:15 +0100 | [diff] [blame] | 643 | addr = fdt_translate_address((void *)gd->fdt_blob, |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 644 | dev->of_offset, reg); |
Stefan Roese | a0ea0f9 | 2015-12-14 16:18:15 +0100 | [diff] [blame] | 645 | } else { |
| 646 | /* |
| 647 | * Use the "simple" translate function for less complex |
| 648 | * bus setups. |
| 649 | */ |
| 650 | addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob, |
| 651 | dev->parent->of_offset, |
| 652 | dev->of_offset, "reg", |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 653 | index, NULL); |
Stefan Roese | a0ea0f9 | 2015-12-14 16:18:15 +0100 | [diff] [blame] | 654 | if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) { |
| 655 | if (device_get_uclass_id(dev->parent) == |
| 656 | UCLASS_SIMPLE_BUS) |
| 657 | addr = simple_bus_translate(dev->parent, addr); |
| 658 | } |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 659 | } |
| 660 | |
| 661 | /* |
Stefan Roese | a0ea0f9 | 2015-12-14 16:18:15 +0100 | [diff] [blame] | 662 | * Some platforms need a special address translation. Those |
| 663 | * platforms (e.g. mvebu in SPL) can configure a translation |
| 664 | * offset in the DM by calling dm_set_translation_offset() that |
| 665 | * will get added to all addresses returned by dev_get_addr(). |
Stefan Roese | adc0905 | 2015-09-02 07:41:12 +0200 | [diff] [blame] | 666 | */ |
Stefan Roese | a0ea0f9 | 2015-12-14 16:18:15 +0100 | [diff] [blame] | 667 | addr += dm_get_translation_offset(); |
Simon Glass | 59b6196 | 2015-07-07 20:53:44 -0600 | [diff] [blame] | 668 | |
| 669 | return addr; |
Peng Fan | 99b7235 | 2015-02-10 14:46:32 +0800 | [diff] [blame] | 670 | #else |
Peng Fan | 99b7235 | 2015-02-10 14:46:32 +0800 | [diff] [blame] | 671 | return FDT_ADDR_T_NONE; |
Peng Fan | 99b7235 | 2015-02-10 14:46:32 +0800 | [diff] [blame] | 672 | #endif |
Simon Glass | 59b6196 | 2015-07-07 20:53:44 -0600 | [diff] [blame] | 673 | } |
Simon Glass | 40f829a | 2015-03-25 12:21:57 -0600 | [diff] [blame] | 674 | |
Stephen Warren | 1807907 | 2016-04-06 12:49:19 -0600 | [diff] [blame] | 675 | fdt_addr_t dev_get_addr_name(struct udevice *dev, const char *name) |
| 676 | { |
| 677 | #if CONFIG_IS_ENABLED(OF_CONTROL) |
| 678 | int index; |
| 679 | |
Stephen Warren | 38b82d5 | 2016-04-28 16:04:15 -0600 | [diff] [blame] | 680 | index = fdt_find_string(gd->fdt_blob, dev->of_offset, "reg-names", |
| 681 | name); |
Stephen Warren | 1807907 | 2016-04-06 12:49:19 -0600 | [diff] [blame] | 682 | if (index < 0) |
| 683 | return index; |
| 684 | |
| 685 | return dev_get_addr_index(dev, index); |
| 686 | #else |
| 687 | return FDT_ADDR_T_NONE; |
| 688 | #endif |
| 689 | } |
| 690 | |
Mugunthan V N | 4b776e5 | 2015-12-23 20:39:36 +0530 | [diff] [blame] | 691 | fdt_addr_t dev_get_addr(struct udevice *dev) |
| 692 | { |
| 693 | return dev_get_addr_index(dev, 0); |
| 694 | } |
| 695 | |
Stefan Roese | d8fc5ff | 2016-04-21 07:11:34 +0200 | [diff] [blame] | 696 | void *dev_get_addr_ptr(struct udevice *dev) |
| 697 | { |
| 698 | return (void *)(uintptr_t)dev_get_addr_index(dev, 0); |
| 699 | } |
| 700 | |
Vignesh R | 0dff370 | 2016-07-06 09:58:55 +0530 | [diff] [blame^] | 701 | void *dev_map_physmem(struct udevice *dev, unsigned long size) |
| 702 | { |
| 703 | fdt_addr_t addr = dev_get_addr(dev); |
| 704 | |
| 705 | if (addr == FDT_ADDR_T_NONE) |
| 706 | return NULL; |
| 707 | |
| 708 | return map_physmem(addr, size, MAP_NOCACHE); |
| 709 | } |
| 710 | |
Simon Glass | 40f829a | 2015-03-25 12:21:57 -0600 | [diff] [blame] | 711 | bool device_has_children(struct udevice *dev) |
| 712 | { |
| 713 | return !list_empty(&dev->child_head); |
| 714 | } |
| 715 | |
| 716 | bool device_has_active_children(struct udevice *dev) |
| 717 | { |
| 718 | struct udevice *child; |
| 719 | |
| 720 | for (device_find_first_child(dev, &child); |
| 721 | child; |
| 722 | device_find_next_child(&child)) { |
| 723 | if (device_active(child)) |
| 724 | return true; |
| 725 | } |
| 726 | |
| 727 | return false; |
| 728 | } |
| 729 | |
| 730 | bool device_is_last_sibling(struct udevice *dev) |
| 731 | { |
| 732 | struct udevice *parent = dev->parent; |
| 733 | |
| 734 | if (!parent) |
| 735 | return false; |
| 736 | return list_is_last(&dev->sibling_node, &parent->child_head); |
| 737 | } |
Simon Glass | e3b23e2 | 2015-07-30 13:40:39 -0600 | [diff] [blame] | 738 | |
Simon Glass | 7760ba2 | 2016-05-01 13:52:23 -0600 | [diff] [blame] | 739 | void device_set_name_alloced(struct udevice *dev) |
| 740 | { |
| 741 | dev->flags |= DM_NAME_ALLOCED; |
| 742 | } |
| 743 | |
Simon Glass | e3b23e2 | 2015-07-30 13:40:39 -0600 | [diff] [blame] | 744 | int device_set_name(struct udevice *dev, const char *name) |
| 745 | { |
| 746 | name = strdup(name); |
| 747 | if (!name) |
| 748 | return -ENOMEM; |
| 749 | dev->name = name; |
Simon Glass | 7760ba2 | 2016-05-01 13:52:23 -0600 | [diff] [blame] | 750 | device_set_name_alloced(dev); |
Simon Glass | e3b23e2 | 2015-07-30 13:40:39 -0600 | [diff] [blame] | 751 | |
| 752 | return 0; |
| 753 | } |
Mugunthan V N | 4666bd9 | 2016-04-28 15:36:02 +0530 | [diff] [blame] | 754 | |
| 755 | bool of_device_is_compatible(struct udevice *dev, const char *compat) |
| 756 | { |
| 757 | const void *fdt = gd->fdt_blob; |
| 758 | |
| 759 | return !fdt_node_check_compatible(fdt, dev->of_offset, compat); |
| 760 | } |
| 761 | |
| 762 | bool of_machine_is_compatible(const char *compat) |
| 763 | { |
| 764 | const void *fdt = gd->fdt_blob; |
| 765 | |
| 766 | return !fdt_node_check_compatible(fdt, 0, compat); |
| 767 | } |