132 static int occ_poll(struct occ *occ)  in occ_poll()  argument
135 	u16 checksum = occ->poll_cmd_data + occ->seq_no + 1;  in occ_poll()
140 	cmd[0] = occ->seq_no++;		/* sequence number */  in occ_poll()
144 	cmd[4] = occ->poll_cmd_data;	/* data */  in occ_poll()
150 	rc = occ->send_cmd(occ, cmd);  in occ_poll()
152 		occ->last_error = rc;  in occ_poll()
153 		if (occ->error_count++ > OCC_ERROR_COUNT_THRESHOLD)  in occ_poll()
154 			occ->error = rc;  in occ_poll()
160 	occ->error_count = 0;  in occ_poll()
161 	occ->last_error = 0;  in occ_poll()
162 	occ->error = 0;  in occ_poll()
165 	header = (struct occ_poll_response_header *)occ->resp.data;  in occ_poll()
167 		if (occ->last_safe) {  in occ_poll()
169 				       occ->last_safe + OCC_SAFE_TIMEOUT))  in occ_poll()
170 				occ->error = -EHOSTDOWN;  in occ_poll()
172 			occ->last_safe = jiffies;  in occ_poll()
175 		occ->last_safe = 0;  in occ_poll()
179 	occ_sysfs_poll_done(occ);  in occ_poll()
183 static int occ_set_user_power_cap(struct occ *occ, u16 user_power_cap)  in occ_set_user_power_cap()  argument
201 	rc = mutex_lock_interruptible(&occ->lock);  in occ_set_user_power_cap()
205 	rc = occ->send_cmd(occ, cmd);  in occ_set_user_power_cap()
207 	mutex_unlock(&occ->lock);  in occ_set_user_power_cap()
212 int occ_update_response(struct occ *occ)  in occ_update_response()  argument
214 	int rc = mutex_lock_interruptible(&occ->lock);  in occ_update_response()
220 	if (time_after(jiffies, occ->next_update)) {  in occ_update_response()
221 		rc = occ_poll(occ);  in occ_update_response()
222 		occ->next_update = jiffies + OCC_UPDATE_FREQUENCY;  in occ_update_response()
224 		rc = occ->last_error;  in occ_update_response()
227 	mutex_unlock(&occ->lock);  in occ_update_response()
237 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_temp_1()  local
238 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_temp_1()
241 	rc = occ_update_response(occ);  in occ_show_temp_1()
273 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_temp_2()  local
274 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_temp_2()
277 	rc = occ_update_response(occ);  in occ_show_temp_2()
324 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_temp_10()  local
325 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_temp_10()
328 	rc = occ_update_response(occ);  in occ_show_temp_10()
371 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_freq_1()  local
372 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_freq_1()
375 	rc = occ_update_response(occ);  in occ_show_freq_1()
401 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_freq_2()  local
402 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_freq_2()
405 	rc = occ_update_response(occ);  in occ_show_freq_2()
431 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_1()  local
432 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_1()
435 	rc = occ_update_response(occ);  in occ_show_power_1()
452 			   occ->powr_sample_time_us;  in occ_show_power_1()
478 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_2()  local
479 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_2()
482 	rc = occ_update_response(occ);  in occ_show_power_2()
499 			   occ->powr_sample_time_us;  in occ_show_power_2()
517 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_a0()  local
518 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_a0()
521 	rc = occ_update_response(occ);  in occ_show_power_a0()
537 			   occ->powr_sample_time_us;  in occ_show_power_a0()
551 			   occ->powr_sample_time_us;  in occ_show_power_a0()
565 			   occ->powr_sample_time_us;  in occ_show_power_a0()
579 			   occ->powr_sample_time_us;  in occ_show_power_a0()
597 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_caps_1_2()  local
598 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_caps_1_2()
601 	rc = occ_update_response(occ);  in occ_show_caps_1_2()
629 		if (occ->sensors.caps.version == 1)  in occ_show_caps_1_2()
647 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_caps_3()  local
648 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_caps_3()
651 	rc = occ_update_response(occ);  in occ_show_caps_3()
695 	struct occ *occ = dev_get_drvdata(dev);  in occ_store_caps_user()  local
703 	rc = occ_set_user_power_cap(occ, user_power_cap);  in occ_store_caps_user()
715 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_extended()  local
716 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_extended()
719 	rc = occ_update_response(occ);  in occ_show_extended()
780 static int occ_setup_sensor_attrs(struct occ *occ)  in occ_setup_sensor_attrs()  argument
783 	struct device *dev = occ->bus_dev;  in occ_setup_sensor_attrs()
784 	struct occ_sensors *sensors = &occ->sensors;  in occ_setup_sensor_attrs()
860 	occ->attrs = devm_kzalloc(dev, sizeof(*occ->attrs) * num_attrs,  in occ_setup_sensor_attrs()
862 	if (!occ->attrs)  in occ_setup_sensor_attrs()
866 	occ->group.attrs = devm_kzalloc(dev, sizeof(*occ->group.attrs) *  in occ_setup_sensor_attrs()
868 	if (!occ->group.attrs)  in occ_setup_sensor_attrs()
871 	attr = occ->attrs;  in occ_setup_sensor_attrs()
1078 		sysfs_attr_init(&occ->attrs[i].sensor.dev_attr.attr);  in occ_setup_sensor_attrs()
1079 		occ->group.attrs[i] = &occ->attrs[i].sensor.dev_attr.attr;  in occ_setup_sensor_attrs()
1086 static void occ_parse_poll_response(struct occ *occ)  in occ_parse_poll_response()  argument
1090 	struct occ_sensors *sensors = &occ->sensors;  in occ_parse_poll_response()
1091 	struct occ_response *resp = &occ->resp;  in occ_parse_poll_response()
1097 	dev_info(occ->bus_dev, "OCC found, code level: %.16s\n",  in occ_parse_poll_response()
1109 			dev_warn(occ->bus_dev, "exceeded response buffer\n");  in occ_parse_poll_response()
1113 		dev_dbg(occ->bus_dev, " %04x..%04x: %.4s (%d sensors)\n",  in occ_parse_poll_response()
1129 			dev_warn(occ->bus_dev, "sensor not supported %.4s\n",  in occ_parse_poll_response()
1139 	dev_dbg(occ->bus_dev, "Max resp size: %u+%zd=%zd\n", size,  in occ_parse_poll_response()
1143 int occ_setup(struct occ *occ, const char *name)  in occ_setup()  argument
1148 	occ->seq_no = 1;  in occ_setup()
1149 	mutex_init(&occ->lock);  in occ_setup()
1150 	occ->groups[0] = &occ->group;  in occ_setup()
1153 	rc = occ_poll(occ);  in occ_setup()
1155 		dev_info(occ->bus_dev, "host is not ready\n");  in occ_setup()
1158 		dev_err(occ->bus_dev,  in occ_setup()
1160 			occ->resp.return_status, rc);  in occ_setup()
1164 	occ->next_update = jiffies + OCC_UPDATE_FREQUENCY;  in occ_setup()
1165 	occ_parse_poll_response(occ);  in occ_setup()
1167 	rc = occ_setup_sensor_attrs(occ);  in occ_setup()
1169 		dev_err(occ->bus_dev, "failed to setup sensor attrs: %d\n",  in occ_setup()
1174 	occ->hwmon = devm_hwmon_device_register_with_groups(occ->bus_dev, name,  in occ_setup()
1175 							    occ, occ->groups);  in occ_setup()
1176 	if (IS_ERR(occ->hwmon)) {  in occ_setup()
1177 		rc = PTR_ERR(occ->hwmon);  in occ_setup()
1178 		dev_err(occ->bus_dev, "failed to register hwmon device: %d\n",  in occ_setup()
1183 	rc = occ_setup_sysfs(occ);  in occ_setup()
1185 		dev_err(occ->bus_dev, "failed to setup sysfs: %d\n", rc);  in occ_setup()