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authorPaul Mackerras <paulus@samba.org>2005-10-17 06:11:03 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-17 06:11:03 -0400
commit3e63b9ec51eb1d9f441e5015427b23d70e5991b3 (patch)
treeccc8e2b93c112fa6d7d65030c6ba4e8e5789e616 /arch/ppc/syslib
parent30286ef6e044bc3d9019c3d8b900572e3fa05e65 (diff)
ppc: Use the merged of_device.c from arch/powerpc/kernel
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/syslib')
-rw-r--r--arch/ppc/syslib/Makefile2
-rw-r--r--arch/ppc/syslib/of_device.c276
2 files changed, 1 insertions, 277 deletions
diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index b8d08f33f7ee..f6a2f1938bfa 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -39,7 +39,7 @@ obj-$(CONFIG_8xx) += m8xx_setup.o ppc8xx_pic.o $(wdt-mpc8xx-y) \
39ifeq ($(CONFIG_8xx),y) 39ifeq ($(CONFIG_8xx),y)
40obj-$(CONFIG_PCI) += qspan_pci.o i8259.o 40obj-$(CONFIG_PCI) += qspan_pci.o i8259.o
41endif 41endif
42obj-$(CONFIG_PPC_OF) += prom_init.o prom.o of_device.o 42obj-$(CONFIG_PPC_OF) += prom_init.o prom.o
43obj-$(CONFIG_PPC_PMAC) += open_pic.o indirect_pci.o 43obj-$(CONFIG_PPC_PMAC) += open_pic.o indirect_pci.o
44obj-$(CONFIG_POWER4) += open_pic2.o 44obj-$(CONFIG_POWER4) += open_pic2.o
45obj-$(CONFIG_PPC_CHRP) += open_pic.o indirect_pci.o i8259.o 45obj-$(CONFIG_PPC_CHRP) += open_pic.o indirect_pci.o i8259.o
diff --git a/arch/ppc/syslib/of_device.c b/arch/ppc/syslib/of_device.c
deleted file mode 100644
index 93c7231ea709..000000000000
--- a/arch/ppc/syslib/of_device.c
+++ /dev/null
@@ -1,276 +0,0 @@
1#include <linux/config.h>
2#include <linux/string.h>
3#include <linux/kernel.h>
4#include <linux/init.h>
5#include <linux/module.h>
6#include <linux/mod_devicetable.h>
7#include <asm/errno.h>
8#include <asm/of_device.h>
9
10/**
11 * of_match_device - Tell if an of_device structure has a matching
12 * of_match structure
13 * @ids: array of of device match structures to search in
14 * @dev: the of device structure to match against
15 *
16 * Used by a driver to check whether an of_device present in the
17 * system is in its list of supported devices.
18 */
19const struct of_device_id * of_match_device(const struct of_device_id *matches,
20 const struct of_device *dev)
21{
22 if (!dev->node)
23 return NULL;
24 while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
25 int match = 1;
26 if (matches->name[0])
27 match &= dev->node->name
28 && !strcmp(matches->name, dev->node->name);
29 if (matches->type[0])
30 match &= dev->node->type
31 && !strcmp(matches->type, dev->node->type);
32 if (matches->compatible[0])
33 match &= device_is_compatible(dev->node,
34 matches->compatible);
35 if (match)
36 return matches;
37 matches++;
38 }
39 return NULL;
40}
41
42static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
43{
44 struct of_device * of_dev = to_of_device(dev);
45 struct of_platform_driver * of_drv = to_of_platform_driver(drv);
46 const struct of_device_id * matches = of_drv->match_table;
47
48 if (!matches)
49 return 0;
50
51 return of_match_device(matches, of_dev) != NULL;
52}
53
54struct of_device *of_dev_get(struct of_device *dev)
55{
56 struct device *tmp;
57
58 if (!dev)
59 return NULL;
60 tmp = get_device(&dev->dev);
61 if (tmp)
62 return to_of_device(tmp);
63 else
64 return NULL;
65}
66
67void of_dev_put(struct of_device *dev)
68{
69 if (dev)
70 put_device(&dev->dev);
71}
72
73
74static int of_device_probe(struct device *dev)
75{
76 int error = -ENODEV;
77 struct of_platform_driver *drv;
78 struct of_device *of_dev;
79 const struct of_device_id *match;
80
81 drv = to_of_platform_driver(dev->driver);
82 of_dev = to_of_device(dev);
83
84 if (!drv->probe)
85 return error;
86
87 of_dev_get(of_dev);
88
89 match = of_match_device(drv->match_table, of_dev);
90 if (match)
91 error = drv->probe(of_dev, match);
92 if (error)
93 of_dev_put(of_dev);
94
95 return error;
96}
97
98static int of_device_remove(struct device *dev)
99{
100 struct of_device * of_dev = to_of_device(dev);
101 struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
102
103 if (dev->driver && drv->remove)
104 drv->remove(of_dev);
105 return 0;
106}
107
108static int of_device_suspend(struct device *dev, pm_message_t state)
109{
110 struct of_device * of_dev = to_of_device(dev);
111 struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
112 int error = 0;
113
114 if (dev->driver && drv->suspend)
115 error = drv->suspend(of_dev, state);
116 return error;
117}
118
119static int of_device_resume(struct device * dev)
120{
121 struct of_device * of_dev = to_of_device(dev);
122 struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
123 int error = 0;
124
125 if (dev->driver && drv->resume)
126 error = drv->resume(of_dev);
127 return error;
128}
129
130struct bus_type of_platform_bus_type = {
131 .name = "of_platform",
132 .match = of_platform_bus_match,
133 .suspend = of_device_suspend,
134 .resume = of_device_resume,
135};
136
137static int __init of_bus_driver_init(void)
138{
139 return bus_register(&of_platform_bus_type);
140}
141
142postcore_initcall(of_bus_driver_init);
143
144int of_register_driver(struct of_platform_driver *drv)
145{
146 int count = 0;
147
148 /* initialize common driver fields */
149 drv->driver.name = drv->name;
150 drv->driver.bus = &of_platform_bus_type;
151 drv->driver.probe = of_device_probe;
152 drv->driver.remove = of_device_remove;
153
154 /* register with core */
155 count = driver_register(&drv->driver);
156 return count ? count : 1;
157}
158
159void of_unregister_driver(struct of_platform_driver *drv)
160{
161 driver_unregister(&drv->driver);
162}
163
164
165static ssize_t dev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf)
166{
167 struct of_device *ofdev;
168
169 ofdev = to_of_device(dev);
170 return sprintf(buf, "%s", ofdev->node->full_name);
171}
172
173static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);
174
175/**
176 * of_release_dev - free an of device structure when all users of it are finished.
177 * @dev: device that's been disconnected
178 *
179 * Will be called only by the device core when all users of this of device are
180 * done.
181 */
182void of_release_dev(struct device *dev)
183{
184 struct of_device *ofdev;
185
186 ofdev = to_of_device(dev);
187 of_node_put(ofdev->node);
188 kfree(ofdev);
189}
190
191int of_device_register(struct of_device *ofdev)
192{
193 int rc;
194 struct of_device **odprop;
195
196 BUG_ON(ofdev->node == NULL);
197
198 odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
199 if (!odprop) {
200 struct property *new_prop;
201
202 new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),
203 GFP_KERNEL);
204 if (new_prop == NULL)
205 return -ENOMEM;
206 new_prop->name = "linux,device";
207 new_prop->length = sizeof(sizeof(struct of_device *));
208 new_prop->value = (unsigned char *)&new_prop[1];
209 odprop = (struct of_device **)new_prop->value;
210 *odprop = NULL;
211 prom_add_property(ofdev->node, new_prop);
212 }
213 *odprop = ofdev;
214
215 rc = device_register(&ofdev->dev);
216 if (rc)
217 return rc;
218
219 device_create_file(&ofdev->dev, &dev_attr_devspec);
220
221 return 0;
222}
223
224void of_device_unregister(struct of_device *ofdev)
225{
226 struct of_device **odprop;
227
228 device_remove_file(&ofdev->dev, &dev_attr_devspec);
229
230 odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
231 if (odprop)
232 *odprop = NULL;
233
234 device_unregister(&ofdev->dev);
235}
236
237struct of_device* of_platform_device_create(struct device_node *np,
238 const char *bus_id,
239 struct device *parent)
240{
241 struct of_device *dev;
242 u32 *reg;
243
244 dev = kmalloc(sizeof(*dev), GFP_KERNEL);
245 if (!dev)
246 return NULL;
247 memset(dev, 0, sizeof(*dev));
248
249 dev->node = of_node_get(np);
250 dev->dma_mask = 0xffffffffUL;
251 dev->dev.dma_mask = &dev->dma_mask;
252 dev->dev.parent = parent;
253 dev->dev.bus = &of_platform_bus_type;
254 dev->dev.release = of_release_dev;
255
256 reg = (u32 *)get_property(np, "reg", NULL);
257 strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
258
259 if (of_device_register(dev) != 0) {
260 kfree(dev);
261 return NULL;
262 }
263
264 return dev;
265}
266
267EXPORT_SYMBOL(of_match_device);
268EXPORT_SYMBOL(of_platform_bus_type);
269EXPORT_SYMBOL(of_register_driver);
270EXPORT_SYMBOL(of_unregister_driver);
271EXPORT_SYMBOL(of_device_register);
272EXPORT_SYMBOL(of_device_unregister);
273EXPORT_SYMBOL(of_dev_get);
274EXPORT_SYMBOL(of_dev_put);
275EXPORT_SYMBOL(of_platform_device_create);
276EXPORT_SYMBOL(of_release_dev);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-27 04:19:54 -0500