124 static int occ_poll(struct occ *occ)  in occ_poll()  argument
127 	u16 checksum = occ->poll_cmd_data + occ->seq_no + 1;  in occ_poll()
132 	cmd[0] = occ->seq_no++;		/* sequence number */  in occ_poll()
136 	cmd[4] = occ->poll_cmd_data;	/* data */  in occ_poll()
142 	rc = occ->send_cmd(occ, cmd);  in occ_poll()
144 		occ->last_error = rc;  in occ_poll()
145 		if (occ->error_count++ > OCC_ERROR_COUNT_THRESHOLD)  in occ_poll()
146 			occ->error = rc;  in occ_poll()
152 	occ->error_count = 0;  in occ_poll()
153 	occ->last_error = 0;  in occ_poll()
154 	occ->error = 0;  in occ_poll()
157 	header = (struct occ_poll_response_header *)occ->resp.data;  in occ_poll()
159 		if (occ->last_safe) {  in occ_poll()
161 				       occ->last_safe + OCC_SAFE_TIMEOUT))  in occ_poll()
162 				occ->error = -EHOSTDOWN;  in occ_poll()
164 			occ->last_safe = jiffies;  in occ_poll()
167 		occ->last_safe = 0;  in occ_poll()
171 	occ_sysfs_poll_done(occ);  in occ_poll()
175 static int occ_set_user_power_cap(struct occ *occ, u16 user_power_cap)  in occ_set_user_power_cap()  argument
193 	rc = mutex_lock_interruptible(&occ->lock);  in occ_set_user_power_cap()
197 	rc = occ->send_cmd(occ, cmd);  in occ_set_user_power_cap()
199 	mutex_unlock(&occ->lock);  in occ_set_user_power_cap()
204 int occ_update_response(struct occ *occ)  in occ_update_response()  argument
206 	int rc = mutex_lock_interruptible(&occ->lock);  in occ_update_response()
212 	if (time_after(jiffies, occ->last_update + OCC_UPDATE_FREQUENCY)) {  in occ_update_response()
213 		rc = occ_poll(occ);  in occ_update_response()
214 		occ->last_update = jiffies;  in occ_update_response()
216 		rc = occ->last_error;  in occ_update_response()
219 	mutex_unlock(&occ->lock);  in occ_update_response()
229 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_temp_1()  local
230 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_temp_1()
233 	rc = occ_update_response(occ);  in occ_show_temp_1()
265 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_temp_2()  local
266 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_temp_2()
269 	rc = occ_update_response(occ);  in occ_show_temp_2()
316 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_freq_1()  local
317 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_freq_1()
320 	rc = occ_update_response(occ);  in occ_show_freq_1()
346 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_freq_2()  local
347 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_freq_2()
350 	rc = occ_update_response(occ);  in occ_show_freq_2()
376 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_1()  local
377 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_1()
380 	rc = occ_update_response(occ);  in occ_show_power_1()
397 			   occ->powr_sample_time_us;  in occ_show_power_1()
423 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_2()  local
424 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_2()
427 	rc = occ_update_response(occ);  in occ_show_power_2()
444 			   occ->powr_sample_time_us;  in occ_show_power_2()
462 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_power_a0()  local
463 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_power_a0()
466 	rc = occ_update_response(occ);  in occ_show_power_a0()
482 			   occ->powr_sample_time_us;  in occ_show_power_a0()
496 			   occ->powr_sample_time_us;  in occ_show_power_a0()
510 			   occ->powr_sample_time_us;  in occ_show_power_a0()
524 			   occ->powr_sample_time_us;  in occ_show_power_a0()
542 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_caps_1_2()  local
543 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_caps_1_2()
546 	rc = occ_update_response(occ);  in occ_show_caps_1_2()
574 		if (occ->sensors.caps.version == 1)  in occ_show_caps_1_2()
592 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_caps_3()  local
593 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_caps_3()
596 	rc = occ_update_response(occ);  in occ_show_caps_3()
640 	struct occ *occ = dev_get_drvdata(dev);  in occ_store_caps_user()  local
648 	rc = occ_set_user_power_cap(occ, user_power_cap);  in occ_store_caps_user()
660 	struct occ *occ = dev_get_drvdata(dev);  in occ_show_extended()  local
661 	struct occ_sensors *sensors = &occ->sensors;  in occ_show_extended()
664 	rc = occ_update_response(occ);  in occ_show_extended()
724 static int occ_setup_sensor_attrs(struct occ *occ)  in occ_setup_sensor_attrs()  argument
727 	struct device *dev = occ->bus_dev;  in occ_setup_sensor_attrs()
728 	struct occ_sensors *sensors = &occ->sensors;  in occ_setup_sensor_attrs()
800 	occ->attrs = devm_kzalloc(dev, sizeof(*occ->attrs) * num_attrs,  in occ_setup_sensor_attrs()
802 	if (!occ->attrs)  in occ_setup_sensor_attrs()
806 	occ->group.attrs = devm_kzalloc(dev, sizeof(*occ->group.attrs) *  in occ_setup_sensor_attrs()
808 	if (!occ->group.attrs)  in occ_setup_sensor_attrs()
811 	attr = occ->attrs;  in occ_setup_sensor_attrs()
1009 		sysfs_attr_init(&occ->attrs[i].sensor.dev_attr.attr);  in occ_setup_sensor_attrs()
1010 		occ->group.attrs[i] = &occ->attrs[i].sensor.dev_attr.attr;  in occ_setup_sensor_attrs()
1017 static void occ_parse_poll_response(struct occ *occ)  in occ_parse_poll_response()  argument
1021 	struct occ_sensors *sensors = &occ->sensors;  in occ_parse_poll_response()
1022 	struct occ_response *resp = &occ->resp;  in occ_parse_poll_response()
1028 	dev_info(occ->bus_dev, "OCC found, code level: %.16s\n",  in occ_parse_poll_response()
1040 			dev_warn(occ->bus_dev, "exceeded response buffer\n");  in occ_parse_poll_response()
1044 		dev_dbg(occ->bus_dev, " %04x..%04x: %.4s (%d sensors)\n",  in occ_parse_poll_response()
1060 			dev_warn(occ->bus_dev, "sensor not supported %.4s\n",  in occ_parse_poll_response()
1070 	dev_dbg(occ->bus_dev, "Max resp size: %u+%zd=%zd\n", size,  in occ_parse_poll_response()
1074 int occ_setup(struct occ *occ, const char *name)  in occ_setup()  argument
1078 	mutex_init(&occ->lock);  in occ_setup()
1079 	occ->groups[0] = &occ->group;  in occ_setup()
1082 	rc = occ_poll(occ);  in occ_setup()
1084 		dev_info(occ->bus_dev, "host is not ready\n");  in occ_setup()
1087 		dev_err(occ->bus_dev, "failed to get OCC poll response: %d\n",  in occ_setup()
1092 	occ_parse_poll_response(occ);  in occ_setup()
1094 	rc = occ_setup_sensor_attrs(occ);  in occ_setup()
1096 		dev_err(occ->bus_dev, "failed to setup sensor attrs: %d\n",  in occ_setup()
1101 	occ->hwmon = devm_hwmon_device_register_with_groups(occ->bus_dev, name,  in occ_setup()
1102 							    occ, occ->groups);  in occ_setup()
1103 	if (IS_ERR(occ->hwmon)) {  in occ_setup()
1104 		rc = PTR_ERR(occ->hwmon);  in occ_setup()
1105 		dev_err(occ->bus_dev, "failed to register hwmon device: %d\n",  in occ_setup()
1110 	rc = occ_setup_sysfs(occ);  in occ_setup()
1112 		dev_err(occ->bus_dev, "failed to setup sysfs: %d\n", rc);  in occ_setup()