Lines Matching refs:ulpi
3 * ulpi.c - USB ULPI PHY bus
10 #include <linux/ulpi/interface.h>
11 #include <linux/ulpi/driver.h>
12 #include <linux/ulpi/regs.h>
23 int ulpi_read(struct ulpi *ulpi, u8 addr)
25 return ulpi->ops->read(ulpi->dev.parent, addr);
29 int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val)
31 return ulpi->ops->write(ulpi->dev.parent, addr, val);
40 struct ulpi *ulpi = to_ulpi_dev(dev);
47 if (ulpi->id.vendor == 0 || !drv->id_table)
51 if (id->vendor == ulpi->id.vendor &&
52 id->product == ulpi->id.product)
60 const struct ulpi *ulpi = to_ulpi_dev(dev);
67 if (add_uevent_var(env, "MODALIAS=ulpi:v%04xp%04x",
68 ulpi->id.vendor, ulpi->id.product))
94 .name = "ulpi",
107 struct ulpi *ulpi = to_ulpi_dev(dev);
113 return sprintf(buf, "ulpi:v%04xp%04x\n",
114 ulpi->id.vendor, ulpi->id.product);
179 static int ulpi_of_register(struct ulpi *ulpi)
184 /* Find a ulpi bus underneath the parent or the grandparent */
185 parent = ulpi->dev.parent;
187 np = of_get_child_by_name(parent->of_node, "ulpi");
189 np = of_get_child_by_name(parent->parent->of_node, "ulpi");
198 ulpi->dev.of_node = child;
203 static int ulpi_read_id(struct ulpi *ulpi)
208 ret = ulpi_write(ulpi, ULPI_SCRATCH, 0xaa);
212 ret = ulpi_read(ulpi, ULPI_SCRATCH);
219 ulpi->id.vendor = ulpi_read(ulpi, ULPI_VENDOR_ID_LOW);
220 ulpi->id.vendor |= ulpi_read(ulpi, ULPI_VENDOR_ID_HIGH) << 8;
222 ulpi->id.product = ulpi_read(ulpi, ULPI_PRODUCT_ID_LOW);
223 ulpi->id.product |= ulpi_read(ulpi, ULPI_PRODUCT_ID_HIGH) << 8;
226 if (ulpi->id.vendor == 0)
229 request_module("ulpi:v%04xp%04x", ulpi->id.vendor, ulpi->id.product);
232 of_request_module(ulpi->dev.of_node);
238 struct ulpi *ulpi = seq->private;
241 int ret = ulpi_read(ulpi, reg); \
276 static int ulpi_register(struct device *dev, struct ulpi *ulpi)
281 ulpi->dev.parent = dev; /* needed early for ops */
282 ulpi->dev.bus = &ulpi_bus;
283 ulpi->dev.type = &ulpi_dev_type;
284 dev_set_name(&ulpi->dev, "%s.ulpi", dev_name(dev));
286 ACPI_COMPANION_SET(&ulpi->dev, ACPI_COMPANION(dev));
288 ret = ulpi_of_register(ulpi);
292 ret = ulpi_read_id(ulpi);
294 of_node_put(ulpi->dev.of_node);
298 ret = device_register(&ulpi->dev);
300 put_device(&ulpi->dev);
304 root = debugfs_create_dir(dev_name(&ulpi->dev), ulpi_root);
305 debugfs_create_file("regs", 0444, root, ulpi, &ulpi_regs_fops);
307 dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n",
308 ulpi->id.vendor, ulpi->id.product);
321 struct ulpi *ulpi_register_interface(struct device *dev,
324 struct ulpi *ulpi;
327 ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
328 if (!ulpi)
331 ulpi->ops = ops;
333 ret = ulpi_register(dev, ulpi);
335 kfree(ulpi);
339 return ulpi;
345 * @ulpi: struct ulpi_interface
350 void ulpi_unregister_interface(struct ulpi *ulpi)
352 debugfs_lookup_and_remove(dev_name(&ulpi->dev), ulpi_root);
353 device_unregister(&ulpi->dev);