drivers/watchdog/ziirave_wdt.c

102 	int ret;
104 	ret = i2c_smbus_read_byte_data(client, command);
105 	if (ret < 0)
106 		return ret;
108 	rev->major = ret;
110 	ret = i2c_smbus_read_byte_data(client, command + 1);
111 	if (ret < 0)
112 		return ret;
114 	rev->minor = ret;
148 	int ret;
150 	ret = i2c_smbus_write_byte_data(client, ZIIRAVE_WDT_TIMEOUT, timeout);
151 	if (!ret)
154 	return ret;
160 	int ret;
162 	ret = i2c_smbus_read_byte_data(client, ZIIRAVE_WDT_TIME_LEFT);
163 	if (ret < 0)
164 		ret = 0;
166 	return ret;
172 	int ret;
174 	ret = i2c_smbus_read_byte(client);
175 	if (ret < 0) {
177 		return ret;
180 	return ret == ZIIRAVE_FIRM_DOWNLOAD_ACK ? 0 : -EIO;
220 	int ret;
252 	ret = i2c_smbus_write_block_data(client, ZIIRAVE_CMD_DOWNLOAD_PACKET,
254 	if (ret) {
256 			"Failed to send DOWNLOAD_PACKET: %d\n", ret);
257 		return ret;
260 	ret = ziirave_firm_read_ack(wdd);
261 	if (ret)
264 		      addr, ret);
266 	return ret;
274 	int ret;
281 		ret = __ziirave_firm_write_pkt(wdd, addr, data, max_write_len);
282 		if (ret)
283 			return ret;
298 	int i, ret;
308 		ret = ziirave_firm_set_read_addr(wdd, addr);
309 		if (ret) {
312 				ret);
313 			return ret;
317 			ret = i2c_smbus_read_byte_data(client,
319 			if (ret < 0) {
321 					"Failed to READ DATA: %d\n", ret);
322 				return ret;
324 			data[i] = ret;
342 	int ret;
344 	ret = i2c_smbus_write_byte_data(client,
347 	if (ret) {
349 		return ret;
354 	ret = i2c_smbus_write_byte(client, ZIIRAVE_CMD_DOWNLOAD_START);
355 	if (ret) {
357 		return ret;
360 	ret = ziirave_firm_read_ack(wdd);
361 	if (ret) {
363 		return ret;
369 		ret = ziirave_firm_write_pkt(wdd, be32_to_cpu(rec->addr),
371 		if (ret)
372 			return ret;
379 	ret = ziirave_firm_write_pkt(wdd, 0, NULL, 0);
380 	if (ret) {
381 		dev_err(&client->dev, "Failed to send EMPTY packet: %d\n", ret);
382 		return ret;
389 	ret = ziirave_firm_verify(wdd, fw);
390 	if (ret) {
392 			"Failed to verify firmware: %d\n", ret);
393 		return ret;
397 	ret = i2c_smbus_write_byte(client, ZIIRAVE_CMD_DOWNLOAD_END);
398 	if (ret) {
400 			"Failed to end firmware download: %d\n", ret);
401 		return ret;
405 	ret = i2c_smbus_write_byte_data(client,
408 	if (ret) {
410 			"Failed to reset the watchdog: %d\n", ret);
411 		return ret;
439 	int ret;
441 	ret = mutex_lock_interruptible(&w_priv->sysfs_mutex);
442 	if (ret)
443 		return ret;
445 	ret = sysfs_emit(buf, "02.%02u.%02u\n",
451 	return ret;
463 	int ret;
465 	ret = mutex_lock_interruptible(&w_priv->sysfs_mutex);
466 	if (ret)
467 		return ret;
469 	ret = sysfs_emit(buf, "01.%02u.%02u\n",
475 	return ret;
487 	int ret;
489 	ret = mutex_lock_interruptible(&w_priv->sysfs_mutex);
490 	if (ret)
491 		return ret;
493 	ret = sysfs_emit(buf, "%s\n", ziirave_reasons[w_priv->reset_reason]);
497 	return ret;
569 	int ret;
574 			ret = -ENODEV;
576 			ret = of_property_read_u32(client->dev.of_node,
579 		if (ret) {
598 	int ret;
642 	ret = ziirave_wdt_set_timeout(&w_priv->wdd, w_priv->wdd.timeout);
643 	if (ret) {
645 		return ret;
664 	ret = ziirave_wdt_init_duration(client);
665 	if (ret) {
667 		return ret;
670 	ret = ziirave_wdt_revision(client, &w_priv->firmware_rev,
672 	if (ret) {
674 		return ret;
681 	ret = ziirave_wdt_revision(client, &w_priv->bootloader_rev,
683 	if (ret) {
685 		return ret;
705 	ret = watchdog_register_device(&w_priv->wdd);
707 	return ret;