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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 20:28:10 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 20:28:10 -0400
commit4c5811bf463b0ef82fabbd1708f8bb2d753aeb18 (patch)
treeff37d31217c3804ca05de21a55a9b5ca1ca818b2 /drivers/of
parentf74b9444192c60603020c61d7915b72893137edc (diff)
parent9f15444fefdb33509132ff5c9be60cb315c44cb2 (diff)
Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6: (21 commits) tty: serial: altera_jtaguart: Add device tree support tty: serial: altera_uart: Add devicetree support dt: eliminate of_platform_driver shim code dt: Eliminate of_platform_{,un}register_driver dt/serial: Eliminate users of of_platform_{,un}register_driver dt/usb: Eliminate users of of_platform_{,un}register_driver dt/video: Eliminate users of of_platform_{,un}register_driver dt/net: Eliminate users of of_platform_{,un}register_driver dt/sound: Eliminate users of of_platform_{,un}register_driver dt/spi: Eliminate users of of_platform_{,un}register_driver dt: uartlite: merge platform and of_platform driver bindings dt: xilinx_hwicap: merge platform and of_platform driver bindings ipmi: convert OF driver to platform driver leds/leds-gpio: merge platform_driver with of_platform_driver dt/sparc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: Eliminate users of of_platform_{,un}register_driver dt/powerpc: move of_bus_type infrastructure to ibmebus drivercore/dt: add a match table pointer to struct device dt: Typo fix. altera_ps2: Add devicetree support ...
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/device.c34
-rw-r--r--drivers/of/platform.c461
2 files changed, 0 insertions, 495 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 45d86530799f..62b4b32ac887 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -47,40 +47,6 @@ void of_dev_put(struct platform_device *dev)
47} 47}
48EXPORT_SYMBOL(of_dev_put); 48EXPORT_SYMBOL(of_dev_put);
49 49
50static ssize_t devspec_show(struct device *dev,
51 struct device_attribute *attr, char *buf)
52{
53 struct platform_device *ofdev;
54
55 ofdev = to_platform_device(dev);
56 return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
57}
58
59static ssize_t name_show(struct device *dev,
60 struct device_attribute *attr, char *buf)
61{
62 struct platform_device *ofdev;
63
64 ofdev = to_platform_device(dev);
65 return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
66}
67
68static ssize_t modalias_show(struct device *dev,
69 struct device_attribute *attr, char *buf)
70{
71 ssize_t len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
72 buf[len] = '\n';
73 buf[len+1] = 0;
74 return len+1;
75}
76
77struct device_attribute of_platform_device_attrs[] = {
78 __ATTR_RO(devspec),
79 __ATTR_RO(name),
80 __ATTR_RO(modalias),
81 __ATTR_NULL
82};
83
84int of_device_add(struct platform_device *ofdev) 50int of_device_add(struct platform_device *ofdev)
85{ 51{
86 BUG_ON(ofdev->dev.of_node == NULL); 52 BUG_ON(ofdev->dev.of_node == NULL);
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index c01cd1ac7617..1ce4c45c4ab2 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -42,471 +42,10 @@ struct platform_device *of_find_device_by_node(struct device_node *np)
42} 42}
43EXPORT_SYMBOL(of_find_device_by_node); 43EXPORT_SYMBOL(of_find_device_by_node);
44 44
45static int platform_driver_probe_shim(struct platform_device *pdev)
46{
47 struct platform_driver *pdrv;
48 struct of_platform_driver *ofpdrv;
49 const struct of_device_id *match;
50
51 pdrv = container_of(pdev->dev.driver, struct platform_driver, driver);
52 ofpdrv = container_of(pdrv, struct of_platform_driver, platform_driver);
53
54 /* There is an unlikely chance that an of_platform driver might match
55 * on a non-OF platform device. If so, then of_match_device() will
56 * come up empty. Return -EINVAL in this case so other drivers get
57 * the chance to bind. */
58 match = of_match_device(pdev->dev.driver->of_match_table, &pdev->dev);
59 return match ? ofpdrv->probe(pdev, match) : -EINVAL;
60}
61
62static void platform_driver_shutdown_shim(struct platform_device *pdev)
63{
64 struct platform_driver *pdrv;
65 struct of_platform_driver *ofpdrv;
66
67 pdrv = container_of(pdev->dev.driver, struct platform_driver, driver);
68 ofpdrv = container_of(pdrv, struct of_platform_driver, platform_driver);
69 ofpdrv->shutdown(pdev);
70}
71
72/**
73 * of_register_platform_driver
74 */
75int of_register_platform_driver(struct of_platform_driver *drv)
76{
77 char *of_name;
78
79 /* setup of_platform_driver to platform_driver adaptors */
80 drv->platform_driver.driver = drv->driver;
81
82 /* Prefix the driver name with 'of:' to avoid namespace collisions
83 * and bogus matches. There are some drivers in the tree that
84 * register both an of_platform_driver and a platform_driver with
85 * the same name. This is a temporary measure until they are all
86 * cleaned up --gcl July 29, 2010 */
87 of_name = kmalloc(strlen(drv->driver.name) + 5, GFP_KERNEL);
88 if (!of_name)
89 return -ENOMEM;
90 sprintf(of_name, "of:%s", drv->driver.name);
91 drv->platform_driver.driver.name = of_name;
92
93 if (drv->probe)
94 drv->platform_driver.probe = platform_driver_probe_shim;
95 drv->platform_driver.remove = drv->remove;
96 if (drv->shutdown)
97 drv->platform_driver.shutdown = platform_driver_shutdown_shim;
98 drv->platform_driver.suspend = drv->suspend;
99 drv->platform_driver.resume = drv->resume;
100
101 return platform_driver_register(&drv->platform_driver);
102}
103EXPORT_SYMBOL(of_register_platform_driver);
104
105void of_unregister_platform_driver(struct of_platform_driver *drv)
106{
107 platform_driver_unregister(&drv->platform_driver);
108 kfree(drv->platform_driver.driver.name);
109 drv->platform_driver.driver.name = NULL;
110}
111EXPORT_SYMBOL(of_unregister_platform_driver);
112
113#if defined(CONFIG_PPC_DCR) 45#if defined(CONFIG_PPC_DCR)
114#include <asm/dcr.h> 46#include <asm/dcr.h>
115#endif 47#endif
116 48
117extern struct device_attribute of_platform_device_attrs[];
118
119static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
120{
121 const struct of_device_id *matches = drv->of_match_table;
122
123 if (!matches)
124 return 0;
125
126 return of_match_device(matches, dev) != NULL;
127}
128
129static int of_platform_device_probe(struct device *dev)
130{
131 int error = -ENODEV;
132 struct of_platform_driver *drv;
133 struct platform_device *of_dev;
134 const struct of_device_id *match;
135
136 drv = to_of_platform_driver(dev->driver);
137 of_dev = to_platform_device(dev);
138
139 if (!drv->probe)
140 return error;
141
142 of_dev_get(of_dev);
143
144 match = of_match_device(drv->driver.of_match_table, dev);
145 if (match)
146 error = drv->probe(of_dev, match);
147 if (error)
148 of_dev_put(of_dev);
149
150 return error;
151}
152
153static int of_platform_device_remove(struct device *dev)
154{
155 struct platform_device *of_dev = to_platform_device(dev);
156 struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
157
158 if (dev->driver && drv->remove)
159 drv->remove(of_dev);
160 return 0;
161}
162
163static void of_platform_device_shutdown(struct device *dev)
164{
165 struct platform_device *of_dev = to_platform_device(dev);
166 struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
167
168 if (dev->driver && drv->shutdown)
169 drv->shutdown(of_dev);
170}
171
172#ifdef CONFIG_PM_SLEEP
173
174static int of_platform_legacy_suspend(struct device *dev, pm_message_t mesg)
175{
176 struct platform_device *of_dev = to_platform_device(dev);
177 struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
178 int ret = 0;
179
180 if (dev->driver && drv->suspend)
181 ret = drv->suspend(of_dev, mesg);
182 return ret;
183}
184
185static int of_platform_legacy_resume(struct device *dev)
186{
187 struct platform_device *of_dev = to_platform_device(dev);
188 struct of_platform_driver *drv = to_of_platform_driver(dev->driver);
189 int ret = 0;
190
191 if (dev->driver && drv->resume)
192 ret = drv->resume(of_dev);
193 return ret;
194}
195
196static int of_platform_pm_prepare(struct device *dev)
197{
198 struct device_driver *drv = dev->driver;
199 int ret = 0;
200
201 if (drv && drv->pm && drv->pm->prepare)
202 ret = drv->pm->prepare(dev);
203
204 return ret;
205}
206
207static void of_platform_pm_complete(struct device *dev)
208{
209 struct device_driver *drv = dev->driver;
210
211 if (drv && drv->pm && drv->pm->complete)
212 drv->pm->complete(dev);
213}
214
215#ifdef CONFIG_SUSPEND
216
217static int of_platform_pm_suspend(struct device *dev)
218{
219 struct device_driver *drv = dev->driver;
220 int ret = 0;
221
222 if (!drv)
223 return 0;
224
225 if (drv->pm) {
226 if (drv->pm->suspend)
227 ret = drv->pm->suspend(dev);
228 } else {
229 ret = of_platform_legacy_suspend(dev, PMSG_SUSPEND);
230 }
231
232 return ret;
233}
234
235static int of_platform_pm_suspend_noirq(struct device *dev)
236{
237 struct device_driver *drv = dev->driver;
238 int ret = 0;
239
240 if (!drv)
241 return 0;
242
243 if (drv->pm) {
244 if (drv->pm->suspend_noirq)
245 ret = drv->pm->suspend_noirq(dev);
246 }
247
248 return ret;
249}
250
251static int of_platform_pm_resume(struct device *dev)
252{
253 struct device_driver *drv = dev->driver;
254 int ret = 0;
255
256 if (!drv)
257 return 0;
258
259 if (drv->pm) {
260 if (drv->pm->resume)
261 ret = drv->pm->resume(dev);
262 } else {
263 ret = of_platform_legacy_resume(dev);
264 }
265
266 return ret;
267}
268
269static int of_platform_pm_resume_noirq(struct device *dev)
270{
271 struct device_driver *drv = dev->driver;
272 int ret = 0;
273
274 if (!drv)
275 return 0;
276
277 if (drv->pm) {
278 if (drv->pm->resume_noirq)
279 ret = drv->pm->resume_noirq(dev);
280 }
281
282 return ret;
283}
284
285#else /* !CONFIG_SUSPEND */
286
287#define of_platform_pm_suspend NULL
288#define of_platform_pm_resume NULL
289#define of_platform_pm_suspend_noirq NULL
290#define of_platform_pm_resume_noirq NULL
291
292#endif /* !CONFIG_SUSPEND */
293
294#ifdef CONFIG_HIBERNATION
295
296static int of_platform_pm_freeze(struct device *dev)
297{
298 struct device_driver *drv = dev->driver;
299 int ret = 0;
300
301 if (!drv)
302 return 0;
303
304 if (drv->pm) {
305 if (drv->pm->freeze)
306 ret = drv->pm->freeze(dev);
307 } else {
308 ret = of_platform_legacy_suspend(dev, PMSG_FREEZE);
309 }
310
311 return ret;
312}
313
314static int of_platform_pm_freeze_noirq(struct device *dev)
315{
316 struct device_driver *drv = dev->driver;
317 int ret = 0;
318
319 if (!drv)
320 return 0;
321
322 if (drv->pm) {
323 if (drv->pm->freeze_noirq)
324 ret = drv->pm->freeze_noirq(dev);
325 }
326
327 return ret;
328}
329
330static int of_platform_pm_thaw(struct device *dev)
331{
332 struct device_driver *drv = dev->driver;
333 int ret = 0;
334
335 if (!drv)
336 return 0;
337
338 if (drv->pm) {
339 if (drv->pm->thaw)
340 ret = drv->pm->thaw(dev);
341 } else {
342 ret = of_platform_legacy_resume(dev);
343 }
344
345 return ret;
346}
347
348static int of_platform_pm_thaw_noirq(struct device *dev)
349{
350 struct device_driver *drv = dev->driver;
351 int ret = 0;
352
353 if (!drv)
354 return 0;
355
356 if (drv->pm) {
357 if (drv->pm->thaw_noirq)
358 ret = drv->pm->thaw_noirq(dev);
359 }
360
361 return ret;
362}
363
364static int of_platform_pm_poweroff(struct device *dev)
365{
366 struct device_driver *drv = dev->driver;
367 int ret = 0;
368
369 if (!drv)
370 return 0;
371
372 if (drv->pm) {
373 if (drv->pm->poweroff)
374 ret = drv->pm->poweroff(dev);
375 } else {
376 ret = of_platform_legacy_suspend(dev, PMSG_HIBERNATE);
377 }
378
379 return ret;
380}
381
382static int of_platform_pm_poweroff_noirq(struct device *dev)
383{
384 struct device_driver *drv = dev->driver;
385 int ret = 0;
386
387 if (!drv)
388 return 0;
389
390 if (drv->pm) {
391 if (drv->pm->poweroff_noirq)
392 ret = drv->pm->poweroff_noirq(dev);
393 }
394
395 return ret;
396}
397
398static int of_platform_pm_restore(struct device *dev)
399{
400 struct device_driver *drv = dev->driver;
401 int ret = 0;
402
403 if (!drv)
404 return 0;
405
406 if (drv->pm) {
407 if (drv->pm->restore)
408 ret = drv->pm->restore(dev);
409 } else {
410 ret = of_platform_legacy_resume(dev);
411 }
412
413 return ret;
414}
415
416static int of_platform_pm_restore_noirq(struct device *dev)
417{
418 struct device_driver *drv = dev->driver;
419 int ret = 0;
420
421 if (!drv)
422 return 0;
423
424 if (drv->pm) {
425 if (drv->pm->restore_noirq)
426 ret = drv->pm->restore_noirq(dev);
427 }
428
429 return ret;
430}
431
432#else /* !CONFIG_HIBERNATION */
433
434#define of_platform_pm_freeze NULL
435#define of_platform_pm_thaw NULL
436#define of_platform_pm_poweroff NULL
437#define of_platform_pm_restore NULL
438#define of_platform_pm_freeze_noirq NULL
439#define of_platform_pm_thaw_noirq NULL
440#define of_platform_pm_poweroff_noirq NULL
441#define of_platform_pm_restore_noirq NULL
442
443#endif /* !CONFIG_HIBERNATION */
444
445static struct dev_pm_ops of_platform_dev_pm_ops = {
446 .prepare = of_platform_pm_prepare,
447 .complete = of_platform_pm_complete,
448 .suspend = of_platform_pm_suspend,
449 .resume = of_platform_pm_resume,
450 .freeze = of_platform_pm_freeze,
451 .thaw = of_platform_pm_thaw,
452 .poweroff = of_platform_pm_poweroff,
453 .restore = of_platform_pm_restore,
454 .suspend_noirq = of_platform_pm_suspend_noirq,
455 .resume_noirq = of_platform_pm_resume_noirq,
456 .freeze_noirq = of_platform_pm_freeze_noirq,
457 .thaw_noirq = of_platform_pm_thaw_noirq,
458 .poweroff_noirq = of_platform_pm_poweroff_noirq,
459 .restore_noirq = of_platform_pm_restore_noirq,
460};
461
462#define OF_PLATFORM_PM_OPS_PTR (&of_platform_dev_pm_ops)
463
464#else /* !CONFIG_PM_SLEEP */
465
466#define OF_PLATFORM_PM_OPS_PTR NULL
467
468#endif /* !CONFIG_PM_SLEEP */
469
470int of_bus_type_init(struct bus_type *bus, const char *name)
471{
472 bus->name = name;
473 bus->match = of_platform_bus_match;
474 bus->probe = of_platform_device_probe;
475 bus->remove = of_platform_device_remove;
476 bus->shutdown = of_platform_device_shutdown;
477 bus->dev_attrs = of_platform_device_attrs;
478 bus->pm = OF_PLATFORM_PM_OPS_PTR;
479 return bus_register(bus);
480}
481
482int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
483{
484 /*
485 * Temporary: of_platform_bus used to be distinct from the platform
486 * bus. It isn't anymore, and so drivers on the platform bus need
487 * to be registered in a special way.
488 *
489 * After all of_platform_bus_type drivers are converted to
490 * platform_drivers, this exception can be removed.
491 */
492 if (bus == &platform_bus_type)
493 return of_register_platform_driver(drv);
494
495 /* register with core */
496 drv->driver.bus = bus;
497 return driver_register(&drv->driver);
498}
499EXPORT_SYMBOL(of_register_driver);
500
501void of_unregister_driver(struct of_platform_driver *drv)
502{
503 if (drv->driver.bus == &platform_bus_type)
504 of_unregister_platform_driver(drv);
505 else
506 driver_unregister(&drv->driver);
507}
508EXPORT_SYMBOL(of_unregister_driver);
509
510#if !defined(CONFIG_SPARC) 49#if !defined(CONFIG_SPARC)
511/* 50/*
512 * The following routines scan a subtree and registers a device for 51 * The following routines scan a subtree and registers a device for