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()
108 	image_size = rt->nvm->buf_data_size;  in tb_retimer_nvm_validate_and_write()
137 	if (device != rt->device)  in tb_retimer_nvm_validate_and_write()
144 	ret = usb4_port_retimer_nvm_write(rt->port, rt->index, 0, buf,  in tb_retimer_nvm_validate_and_write()
147 		rt->nvm->flushed = true;  in tb_retimer_nvm_validate_and_write()
152 static int tb_retimer_nvm_authenticate(struct tb_retimer *rt, bool auth_only)  in tb_retimer_nvm_authenticate()  argument
158 		ret = usb4_port_retimer_nvm_set_offset(rt->port, rt->index, 0);  in tb_retimer_nvm_authenticate()
163 	ret = usb4_port_retimer_nvm_authenticate(rt->port, rt->index);  in tb_retimer_nvm_authenticate()
173 	ret = usb4_port_retimer_nvm_authenticate_status(rt->port, rt->index,  in tb_retimer_nvm_authenticate()
176 		rt->auth_status = status;  in tb_retimer_nvm_authenticate()
186 	struct tb_retimer *rt = tb_to_retimer(dev);  in device_show()  local
188 	return sprintf(buf, "%#x\n", rt->device);  in device_show()
195 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_authenticate_show()  local
198 	if (!mutex_trylock(&rt->tb->lock))  in nvm_authenticate_show()
201 	if (!rt->nvm)  in nvm_authenticate_show()
204 		ret = sprintf(buf, "%#x\n", rt->auth_status);  in nvm_authenticate_show()
206 	mutex_unlock(&rt->tb->lock);  in nvm_authenticate_show()
214 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_authenticate_store()  local
217 	pm_runtime_get_sync(&rt->dev);  in nvm_authenticate_store()
219 	if (!mutex_trylock(&rt->tb->lock)) {  in nvm_authenticate_store()
224 	if (!rt->nvm) {  in nvm_authenticate_store()
234 	rt->auth_status = 0;  in nvm_authenticate_store()
238 			ret = tb_retimer_nvm_authenticate(rt, true);  in nvm_authenticate_store()
240 			if (!rt->nvm->flushed) {  in nvm_authenticate_store()
241 				if (!rt->nvm->buf) {  in nvm_authenticate_store()
246 				ret = tb_retimer_nvm_validate_and_write(rt);  in nvm_authenticate_store()
251 				ret = tb_retimer_nvm_authenticate(rt, false);  in nvm_authenticate_store()
256 	mutex_unlock(&rt->tb->lock);  in nvm_authenticate_store()
258 	pm_runtime_mark_last_busy(&rt->dev);  in nvm_authenticate_store()
259 	pm_runtime_put_autosuspend(&rt->dev);  in nvm_authenticate_store()
270 	struct tb_retimer *rt = tb_to_retimer(dev);  in nvm_version_show()  local
273 	if (!mutex_trylock(&rt->tb->lock))  in nvm_version_show()
276 	if (!rt->nvm)  in nvm_version_show()
279 		ret = sprintf(buf, "%x.%x\n", rt->nvm->major, rt->nvm->minor);  in nvm_version_show()
281 	mutex_unlock(&rt->tb->lock);  in nvm_version_show()
289 	struct tb_retimer *rt = tb_to_retimer(dev);  in vendor_show()  local
291 	return sprintf(buf, "%#x\n", rt->vendor);  in vendor_show()
314 	struct tb_retimer *rt = tb_to_retimer(dev);  in tb_retimer_release()  local
316 	kfree(rt);  in tb_retimer_release()
328 	struct tb_retimer *rt;  in tb_retimer_add()  local
366 	rt = kzalloc(sizeof(*rt), GFP_KERNEL);  in tb_retimer_add()
367 	if (!rt)  in tb_retimer_add()
370 	rt->index = index;  in tb_retimer_add()
371 	rt->vendor = vendor;  in tb_retimer_add()
372 	rt->device = device;  in tb_retimer_add()
373 	rt->auth_status = auth_status;  in tb_retimer_add()
374 	rt->port = port;  in tb_retimer_add()
375 	rt->tb = port->sw->tb;  in tb_retimer_add()
377 	rt->dev.parent = &usb4->dev;  in tb_retimer_add()
378 	rt->dev.bus = &tb_bus_type;  in tb_retimer_add()
379 	rt->dev.type = &tb_retimer_type;  in tb_retimer_add()
380 	dev_set_name(&rt->dev, "%s:%u.%u", dev_name(&port->sw->dev),  in tb_retimer_add()
383 	ret = device_register(&rt->dev);  in tb_retimer_add()
385 		dev_err(&rt->dev, "failed to register retimer: %d\n", ret);  in tb_retimer_add()
386 		put_device(&rt->dev);  in tb_retimer_add()
390 	ret = tb_retimer_nvm_add(rt);  in tb_retimer_add()
392 		dev_err(&rt->dev, "failed to add NVM devices: %d\n", ret);  in tb_retimer_add()
393 		device_unregister(&rt->dev);  in tb_retimer_add()
397 	dev_info(&rt->dev, "new retimer found, vendor=%#x device=%#x\n",  in tb_retimer_add()
398 		 rt->vendor, rt->device);  in tb_retimer_add()
400 	pm_runtime_no_callbacks(&rt->dev);  in tb_retimer_add()
401 	pm_runtime_set_active(&rt->dev);  in tb_retimer_add()
402 	pm_runtime_enable(&rt->dev);  in tb_retimer_add()
403 	pm_runtime_set_autosuspend_delay(&rt->dev, TB_AUTOSUSPEND_DELAY);  in tb_retimer_add()
404 	pm_runtime_mark_last_busy(&rt->dev);  in tb_retimer_add()
405 	pm_runtime_use_autosuspend(&rt->dev);  in tb_retimer_add()
410 static void tb_retimer_remove(struct tb_retimer *rt)  in tb_retimer_remove()  argument
412 	dev_info(&rt->dev, "retimer disconnected\n");  in tb_retimer_remove()
413 	tb_nvm_free(rt->nvm);  in tb_retimer_remove()
414 	device_unregister(&rt->dev);  in tb_retimer_remove()
425 	struct tb_retimer *rt = tb_to_retimer(dev);  in retimer_match()  local
427 	return rt && rt->port == lookup->port && rt->index == lookup->index;  in retimer_match()
458 	 * Send broadcast RT to make sure retimer indices facing this  in tb_retimer_scan()
498 		struct tb_retimer *rt;  in tb_retimer_scan()  local
500 		rt = tb_port_find_retimer(port, i);  in tb_retimer_scan()
501 		if (rt) {  in tb_retimer_scan()
502 			put_device(&rt->dev);  in tb_retimer_scan()
515 	struct tb_retimer *rt = tb_to_retimer(dev);  in remove_retimer()  local
518 	if (rt && rt->port == port)  in remove_retimer()
519 		tb_retimer_remove(rt);  in remove_retimer()