Lines Matching +full:imx6sx +full:- +full:ocotp
1 // SPDX-License-Identifier: GPL-2.0
17 #include <linux/nvmem-consumer.h>
217 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_panic_temp()
218 struct regmap *map = data->tempmon; in imx_set_panic_temp()
221 critical_value = (data->c2 - panic_temp) / data->c1; in imx_set_panic_temp()
223 regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, in imx_set_panic_temp()
224 soc_data->panic_alarm_mask); in imx_set_panic_temp()
225 regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, in imx_set_panic_temp()
226 critical_value << soc_data->panic_alarm_shift); in imx_set_panic_temp()
232 struct regmap *map = data->tempmon; in imx_set_alarm_temp()
233 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_alarm_temp()
236 data->alarm_temp = alarm_temp; in imx_set_alarm_temp()
238 if (data->socdata->version == TEMPMON_IMX7D) in imx_set_alarm_temp()
239 alarm_value = alarm_temp / 1000 + data->c1 - 25; in imx_set_alarm_temp()
241 alarm_value = (data->c2 - alarm_temp) / data->c1; in imx_set_alarm_temp()
243 regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, in imx_set_alarm_temp()
244 soc_data->high_alarm_mask); in imx_set_alarm_temp()
245 regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, in imx_set_alarm_temp()
246 alarm_value << soc_data->high_alarm_shift); in imx_set_alarm_temp()
251 struct imx_thermal_data *data = tz->devdata; in imx_get_temp()
252 const struct thermal_soc_data *soc_data = data->socdata; in imx_get_temp()
253 struct regmap *map = data->tempmon; in imx_get_temp()
258 run_measurement = !data->irq_enabled; in imx_get_temp()
261 regmap_read(map, soc_data->temp_data, &val); in imx_get_temp()
262 wait = !(val & soc_data->temp_valid_mask); in imx_get_temp()
269 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_get_temp()
270 soc_data->power_down_mask); in imx_get_temp()
271 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_get_temp()
272 soc_data->measure_temp_mask); in imx_get_temp()
284 regmap_read(map, soc_data->temp_data, &val); in imx_get_temp()
287 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_get_temp()
288 soc_data->measure_temp_mask); in imx_get_temp()
289 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_get_temp()
290 soc_data->power_down_mask); in imx_get_temp()
293 if ((val & soc_data->temp_valid_mask) == 0) { in imx_get_temp()
294 dev_dbg(&tz->device, "temp measurement never finished\n"); in imx_get_temp()
295 return -EAGAIN; in imx_get_temp()
298 n_meas = (val & soc_data->temp_value_mask) in imx_get_temp()
299 >> soc_data->temp_value_shift; in imx_get_temp()
302 if (data->socdata->version == TEMPMON_IMX7D) in imx_get_temp()
303 *temp = (n_meas - data->c1 + 25) * 1000; in imx_get_temp()
305 *temp = data->c2 - n_meas * data->c1; in imx_get_temp()
308 if (data->socdata->version == TEMPMON_IMX6Q) { in imx_get_temp()
309 if (data->alarm_temp == data->temp_passive && in imx_get_temp()
310 *temp >= data->temp_passive) in imx_get_temp()
311 imx_set_alarm_temp(data, data->temp_critical); in imx_get_temp()
312 if (data->alarm_temp == data->temp_critical && in imx_get_temp()
313 *temp < data->temp_passive) { in imx_get_temp()
314 imx_set_alarm_temp(data, data->temp_passive); in imx_get_temp()
315 dev_dbg(&tz->device, "thermal alarm off: T < %d\n", in imx_get_temp()
316 data->alarm_temp / 1000); in imx_get_temp()
320 if (*temp != data->last_temp) { in imx_get_temp()
321 dev_dbg(&tz->device, "millicelsius: %d\n", *temp); in imx_get_temp()
322 data->last_temp = *temp; in imx_get_temp()
326 if (!data->irq_enabled && *temp < data->alarm_temp) { in imx_get_temp()
327 data->irq_enabled = true; in imx_get_temp()
328 enable_irq(data->irq); in imx_get_temp()
337 struct imx_thermal_data *data = tz->devdata; in imx_change_mode()
338 struct regmap *map = data->tempmon; in imx_change_mode()
339 const struct thermal_soc_data *soc_data = data->socdata; in imx_change_mode()
342 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_change_mode()
343 soc_data->power_down_mask); in imx_change_mode()
344 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_change_mode()
345 soc_data->measure_temp_mask); in imx_change_mode()
347 if (!data->irq_enabled) { in imx_change_mode()
348 data->irq_enabled = true; in imx_change_mode()
349 enable_irq(data->irq); in imx_change_mode()
352 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_change_mode()
353 soc_data->measure_temp_mask); in imx_change_mode()
354 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_change_mode()
355 soc_data->power_down_mask); in imx_change_mode()
357 if (data->irq_enabled) { in imx_change_mode()
358 disable_irq(data->irq); in imx_change_mode()
359 data->irq_enabled = false; in imx_change_mode()
376 struct imx_thermal_data *data = tz->devdata; in imx_get_crit_temp()
378 *temp = data->temp_critical; in imx_get_crit_temp()
385 struct imx_thermal_data *data = tz->devdata; in imx_get_trip_temp()
387 *temp = (trip == IMX_TRIP_PASSIVE) ? data->temp_passive : in imx_get_trip_temp()
388 data->temp_critical; in imx_get_trip_temp()
395 struct imx_thermal_data *data = tz->devdata; in imx_set_trip_temp()
399 return -EPERM; in imx_set_trip_temp()
402 if (temp < 0 || temp > data->temp_critical) in imx_set_trip_temp()
403 return -EINVAL; in imx_set_trip_temp()
405 data->temp_passive = temp; in imx_set_trip_temp()
422 dev_err(&tz->device, in imx_bind()
424 tz->type, cdev->type, ret); in imx_bind()
438 dev_err(&tz->device, in imx_unbind()
440 tz->type, cdev->type, ret); in imx_unbind()
465 dev_err(&pdev->dev, "invalid sensor calibration data\n"); in imx_init_calib()
466 return -EINVAL; in imx_init_calib()
471 * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C. in imx_init_calib()
473 if (data->socdata->version == TEMPMON_IMX7D) { in imx_init_calib()
474 data->c1 = (ocotp_ana1 >> 9) & 0x1ff; in imx_init_calib()
481 * i.MX's OCOTP value ANA1. in imx_init_calib()
485 * T = T1 + (N - N1) / (0.4148468 - 0.0015423 * N1) °C + 3.580661 °C in imx_init_calib()
486 * = [T1' - N1 / (0.4148468 - 0.0015423 * N1) °C] + N / (0.4148468 - 0.0015423 * N1) °C in imx_init_calib()
487 * = [T1' + N1 / (0.0015423 * N1 - 0.4148468) °C] - N / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
488 * = c2 - c1 * N in imx_init_calib()
493 * c1 = 1 / (0.0015423 * N1 - 0.4297157) °C in imx_init_calib()
494 * c2 = T1' + N1 / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
501 do_div(temp64, 15423 * n1 - 4148468); in imx_init_calib()
502 data->c1 = temp64; in imx_init_calib()
503 data->c2 = n1 * data->c1 + 28581; in imx_init_calib()
515 data->temp_grade = "Commercial"; in imx_init_temp_grade()
516 data->temp_max = 95000; in imx_init_temp_grade()
518 case 1: /* Extended Commercial (-20 °C to 105 °C) */ in imx_init_temp_grade()
519 data->temp_grade = "Extended Commercial"; in imx_init_temp_grade()
520 data->temp_max = 105000; in imx_init_temp_grade()
522 case 2: /* Industrial (-40 °C to 105 °C) */ in imx_init_temp_grade()
523 data->temp_grade = "Industrial"; in imx_init_temp_grade()
524 data->temp_max = 105000; in imx_init_temp_grade()
526 case 3: /* Automotive (-40 °C to 125 °C) */ in imx_init_temp_grade()
527 data->temp_grade = "Automotive"; in imx_init_temp_grade()
528 data->temp_max = 125000; in imx_init_temp_grade()
536 data->temp_critical = data->temp_max - (1000 * 5); in imx_init_temp_grade()
537 data->temp_passive = data->temp_max - (1000 * 10); in imx_init_temp_grade()
546 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, in imx_init_from_tempmon_data()
547 "fsl,tempmon-data"); in imx_init_from_tempmon_data()
550 dev_err(&pdev->dev, "failed to get sensor regmap: %d\n", ret); in imx_init_from_tempmon_data()
556 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
565 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
578 ret = nvmem_cell_read_u32(&pdev->dev, "calib", &val); in imx_init_from_nvmem_cells()
586 ret = nvmem_cell_read_u32(&pdev->dev, "temp_grade", &val); in imx_init_from_nvmem_cells()
599 data->irq_enabled = false; in imx_thermal_alarm_irq()
608 dev_dbg(&data->tz->device, "THERMAL ALARM: T > %d\n", in imx_thermal_alarm_irq_thread()
609 data->alarm_temp / 1000); in imx_thermal_alarm_irq_thread()
611 thermal_zone_device_update(data->tz, THERMAL_EVENT_UNSPECIFIED); in imx_thermal_alarm_irq_thread()
617 { .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, },
618 { .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, },
619 { .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, },
626 * Create cooling device in case no #cooling-cells property is available in
634 data->policy = cpufreq_cpu_get(0); in imx_thermal_register_legacy_cooling()
635 if (!data->policy) { in imx_thermal_register_legacy_cooling()
637 return -EPROBE_DEFER; in imx_thermal_register_legacy_cooling()
640 np = of_get_cpu_node(data->policy->cpu, NULL); in imx_thermal_register_legacy_cooling()
642 if (!np || !of_find_property(np, "#cooling-cells", NULL)) { in imx_thermal_register_legacy_cooling()
643 data->cdev = cpufreq_cooling_register(data->policy); in imx_thermal_register_legacy_cooling()
644 if (IS_ERR(data->cdev)) { in imx_thermal_register_legacy_cooling()
645 ret = PTR_ERR(data->cdev); in imx_thermal_register_legacy_cooling()
646 cpufreq_cpu_put(data->policy); in imx_thermal_register_legacy_cooling()
657 cpufreq_cooling_unregister(data->cdev); in imx_thermal_unregister_legacy_cooling()
658 cpufreq_cpu_put(data->policy); in imx_thermal_unregister_legacy_cooling()
680 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in imx_thermal_probe()
682 return -ENOMEM; in imx_thermal_probe()
684 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "fsl,tempmon"); in imx_thermal_probe()
687 dev_err(&pdev->dev, "failed to get tempmon regmap: %d\n", ret); in imx_thermal_probe()
690 data->tempmon = map; in imx_thermal_probe()
692 data->socdata = of_device_get_match_data(&pdev->dev); in imx_thermal_probe()
693 if (!data->socdata) { in imx_thermal_probe()
694 dev_err(&pdev->dev, "no device match found\n"); in imx_thermal_probe()
695 return -ENODEV; in imx_thermal_probe()
699 if (data->socdata->version == TEMPMON_IMX6SX) { in imx_thermal_probe()
707 regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET, in imx_thermal_probe()
708 data->socdata->low_alarm_mask); in imx_thermal_probe()
711 data->irq = platform_get_irq(pdev, 0); in imx_thermal_probe()
712 if (data->irq < 0) in imx_thermal_probe()
713 return data->irq; in imx_thermal_probe()
717 if (of_find_property(pdev->dev.of_node, "nvmem-cells", NULL)) { in imx_thermal_probe()
720 return dev_err_probe(&pdev->dev, ret, in imx_thermal_probe()
725 dev_err(&pdev->dev, "failed to init from fsl,tempmon-data\n"); in imx_thermal_probe()
731 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
732 data->socdata->power_down_mask); in imx_thermal_probe()
733 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
734 data->socdata->measure_temp_mask); in imx_thermal_probe()
735 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
736 data->socdata->measure_freq_mask); in imx_thermal_probe()
737 if (data->socdata->version != TEMPMON_IMX7D) in imx_thermal_probe()
740 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
741 data->socdata->power_down_mask); in imx_thermal_probe()
745 return dev_err_probe(&pdev->dev, ret, in imx_thermal_probe()
748 data->thermal_clk = devm_clk_get(&pdev->dev, NULL); in imx_thermal_probe()
749 if (IS_ERR(data->thermal_clk)) { in imx_thermal_probe()
750 ret = PTR_ERR(data->thermal_clk); in imx_thermal_probe()
751 if (ret != -EPROBE_DEFER) in imx_thermal_probe()
752 dev_err(&pdev->dev, in imx_thermal_probe()
764 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_probe()
766 dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret); in imx_thermal_probe()
770 data->tz = thermal_zone_device_register("imx_thermal_zone", in imx_thermal_probe()
776 if (IS_ERR(data->tz)) { in imx_thermal_probe()
777 ret = PTR_ERR(data->tz); in imx_thermal_probe()
778 dev_err(&pdev->dev, in imx_thermal_probe()
783 dev_info(&pdev->dev, "%s CPU temperature grade - max:%dC" in imx_thermal_probe()
784 " critical:%dC passive:%dC\n", data->temp_grade, in imx_thermal_probe()
785 data->temp_max / 1000, data->temp_critical / 1000, in imx_thermal_probe()
786 data->temp_passive / 1000); in imx_thermal_probe()
789 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
790 data->socdata->measure_freq_mask); in imx_thermal_probe()
792 regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET, in imx_thermal_probe()
793 measure_freq << data->socdata->measure_freq_shift); in imx_thermal_probe()
794 imx_set_alarm_temp(data, data->temp_passive); in imx_thermal_probe()
796 if (data->socdata->version == TEMPMON_IMX6SX) in imx_thermal_probe()
797 imx_set_panic_temp(data, data->temp_critical); in imx_thermal_probe()
799 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
800 data->socdata->power_down_mask); in imx_thermal_probe()
801 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
802 data->socdata->measure_temp_mask); in imx_thermal_probe()
804 data->irq_enabled = true; in imx_thermal_probe()
805 ret = thermal_zone_device_enable(data->tz); in imx_thermal_probe()
809 ret = devm_request_threaded_irq(&pdev->dev, data->irq, in imx_thermal_probe()
813 dev_err(&pdev->dev, "failed to request alarm irq: %d\n", ret); in imx_thermal_probe()
820 thermal_zone_device_unregister(data->tz); in imx_thermal_probe()
822 clk_disable_unprepare(data->thermal_clk); in imx_thermal_probe()
832 struct regmap *map = data->tempmon; in imx_thermal_remove()
835 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_remove()
836 data->socdata->power_down_mask); in imx_thermal_remove()
837 if (!IS_ERR(data->thermal_clk)) in imx_thermal_remove()
838 clk_disable_unprepare(data->thermal_clk); in imx_thermal_remove()
840 thermal_zone_device_unregister(data->tz); in imx_thermal_remove()
858 ret = thermal_zone_device_disable(data->tz); in imx_thermal_suspend()
861 clk_disable_unprepare(data->thermal_clk); in imx_thermal_suspend()
871 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_resume()
875 ret = thermal_zone_device_enable(data->tz); in imx_thermal_resume()
899 MODULE_ALIAS("platform:imx-thermal");