23 	struct tb_retimer *rt = tb_to_retimer(nvm->dev);  in tb_retimer_nvm_read()  local
26 	pm_runtime_get_sync(&rt->dev);  in tb_retimer_nvm_read()
28 	if (!mutex_trylock(&rt->tb->lock)) {  in tb_retimer_nvm_read()
33 	ret = usb4_port_retimer_nvm_read(rt->port, rt->index, offset, val, bytes);  in tb_retimer_nvm_read()
34 	mutex_unlock(&rt->tb->lock);  in tb_retimer_nvm_read()
37 	pm_runtime_mark_last_busy(&rt->dev);  in tb_retimer_nvm_read()
38 	pm_runtime_put_autosuspend(&rt->dev);  in tb_retimer_nvm_read()
47 	struct tb_retimer *rt = tb_to_retimer(nvm->dev);  in tb_retimer_nvm_write()  local
50 	if (!mutex_trylock(&rt->tb->lock))  in tb_retimer_nvm_write()
54 	mutex_unlock(&rt->tb->lock);  in tb_retimer_nvm_write()
59 static int tb_retimer_nvm_add(struct tb_retimer *rt)  in tb_retimer_nvm_add()  argument
65 	nvm = tb_nvm_alloc(&rt->dev);  in tb_retimer_nvm_add()
69 	ret = usb4_port_retimer_nvm_read(rt->port, rt->index, NVM_VERSION, &val,  in tb_retimer_nvm_add()
77 	ret = usb4_port_retimer_nvm_read(rt->port, rt->index, NVM_FLASH_SIZE,  in tb_retimer_nvm_add()
93 	rt->nvm = nvm;  in tb_retimer_nvm_add()
101 static int tb_retimer_nvm_validate_and_write(struct tb_retimer *rt)  in tb_retimer_nvm_validate_and_write()  argument
104 	const u8 *buf = rt->nvm->buf;  in tb_retimer_nvm_validate_and_write()
107 	image_size = rt->nvm->buf_data_size;  in tb_retimer_nvm_validate_and_write()
136 	if (device != rt->device)  in tb_retimer_nvm_validate_and_write()
143 	return usb4_port_retimer_nvm_write(rt->port, rt->index, 0, buf,  in tb_retimer_nvm_validate_and_write()
150 	struct tb_retimer *rt = tb_to_retimer(dev);  in device_show()  local
152 	return sprintf(buf, "%#x\n", rt->device);  in device_show()
159 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_authenticate_show()  local
162 	if (!mutex_trylock(&rt->tb->lock))  in nvm_authenticate_show()
165 	if (!rt->nvm)  in nvm_authenticate_show()
168 		ret = sprintf(buf, "%#x\n", rt->auth_status);  in nvm_authenticate_show()
170 	mutex_unlock(&rt->tb->lock);  in nvm_authenticate_show()
178 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_authenticate_store()  local
182 	pm_runtime_get_sync(&rt->dev);  in nvm_authenticate_store()
184 	if (!mutex_trylock(&rt->tb->lock)) {  in nvm_authenticate_store()
189 	if (!rt->nvm) {  in nvm_authenticate_store()
199 	rt->auth_status = 0;  in nvm_authenticate_store()
202 		if (!rt->nvm->buf) {  in nvm_authenticate_store()
207 		ret = tb_retimer_nvm_validate_and_write(rt);  in nvm_authenticate_store()
211 		ret = usb4_port_retimer_nvm_authenticate(rt->port, rt->index);  in nvm_authenticate_store()
215 	mutex_unlock(&rt->tb->lock);  in nvm_authenticate_store()
217 	pm_runtime_mark_last_busy(&rt->dev);  in nvm_authenticate_store()
218 	pm_runtime_put_autosuspend(&rt->dev);  in nvm_authenticate_store()
229 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_version_show()  local
232 	if (!mutex_trylock(&rt->tb->lock))  in nvm_version_show()
235 	if (!rt->nvm)  in nvm_version_show()
238 		ret = sprintf(buf, "%x.%x\n", rt->nvm->major, rt->nvm->minor);  in nvm_version_show()
240 	mutex_unlock(&rt->tb->lock);  in nvm_version_show()
248 	struct tb_retimer *rt = tb_to_retimer(dev);  in vendor_show()  local
250 	return sprintf(buf, "%#x\n", rt->vendor);  in vendor_show()
273 	struct tb_retimer *rt = tb_to_retimer(dev);  in tb_retimer_release()  local
275 	kfree(rt);  in tb_retimer_release()
286 	struct tb_retimer *rt;  in tb_retimer_add()  local
323 	rt = kzalloc(sizeof(*rt), GFP_KERNEL);  in tb_retimer_add()
324 	if (!rt)  in tb_retimer_add()
327 	rt->index = index;  in tb_retimer_add()
328 	rt->vendor = vendor;  in tb_retimer_add()
329 	rt->device = device;  in tb_retimer_add()
330 	rt->auth_status = auth_status;  in tb_retimer_add()
331 	rt->port = port;  in tb_retimer_add()
332 	rt->tb = port->sw->tb;  in tb_retimer_add()
334 	rt->dev.parent = &port->sw->dev;  in tb_retimer_add()
335 	rt->dev.bus = &tb_bus_type;  in tb_retimer_add()
336 	rt->dev.type = &tb_retimer_type;  in tb_retimer_add()
337 	dev_set_name(&rt->dev, "%s:%u.%u", dev_name(&port->sw->dev),  in tb_retimer_add()
340 	ret = device_register(&rt->dev);  in tb_retimer_add()
342 		dev_err(&rt->dev, "failed to register retimer: %d\n", ret);  in tb_retimer_add()
343 		put_device(&rt->dev);  in tb_retimer_add()
347 	ret = tb_retimer_nvm_add(rt);  in tb_retimer_add()
349 		dev_err(&rt->dev, "failed to add NVM devices: %d\n", ret);  in tb_retimer_add()
350 		device_unregister(&rt->dev);  in tb_retimer_add()
354 	dev_info(&rt->dev, "new retimer found, vendor=%#x device=%#x\n",  in tb_retimer_add()
355 		 rt->vendor, rt->device);  in tb_retimer_add()
357 	pm_runtime_no_callbacks(&rt->dev);  in tb_retimer_add()
358 	pm_runtime_set_active(&rt->dev);  in tb_retimer_add()
359 	pm_runtime_enable(&rt->dev);  in tb_retimer_add()
360 	pm_runtime_set_autosuspend_delay(&rt->dev, TB_AUTOSUSPEND_DELAY);  in tb_retimer_add()
361 	pm_runtime_mark_last_busy(&rt->dev);  in tb_retimer_add()
362 	pm_runtime_use_autosuspend(&rt->dev);  in tb_retimer_add()
367 static void tb_retimer_remove(struct tb_retimer *rt)  in tb_retimer_remove()  argument
369 	dev_info(&rt->dev, "retimer disconnected\n");  in tb_retimer_remove()
370 	tb_nvm_free(rt->nvm);  in tb_retimer_remove()
371 	device_unregister(&rt->dev);  in tb_retimer_remove()
382 	struct tb_retimer *rt = tb_to_retimer(dev);  in retimer_match()  local
384 	return rt && rt->port == lookup->port && rt->index == lookup->index;  in retimer_match()
449 		struct tb_retimer *rt;  in tb_retimer_scan()  local
451 		rt = tb_port_find_retimer(port, i);  in tb_retimer_scan()
452 		if (rt) {  in tb_retimer_scan()
453 			put_device(&rt->dev);  in tb_retimer_scan()
466 	struct tb_retimer *rt = tb_to_retimer(dev);  in remove_retimer()  local
469 	if (rt && rt->port == port)  in remove_retimer()
470 		tb_retimer_remove(rt);  in remove_retimer()