Lines Matching +full:tempmon +full:- +full:data
1 // SPDX-License-Identifier: GPL-2.0
24 #include <linux/nvmem-consumer.h>
208 struct regmap *tempmon; member
222 static void imx_set_panic_temp(struct imx_thermal_data *data, in imx_set_panic_temp() argument
225 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_panic_temp()
226 struct regmap *map = data->tempmon; in imx_set_panic_temp()
229 critical_value = (data->c2 - panic_temp) / data->c1; in imx_set_panic_temp()
231 regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, in imx_set_panic_temp()
232 soc_data->panic_alarm_mask); in imx_set_panic_temp()
233 regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, in imx_set_panic_temp()
234 critical_value << soc_data->panic_alarm_shift); in imx_set_panic_temp()
237 static void imx_set_alarm_temp(struct imx_thermal_data *data, in imx_set_alarm_temp() argument
240 struct regmap *map = data->tempmon; in imx_set_alarm_temp()
241 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_alarm_temp()
244 data->alarm_temp = alarm_temp; in imx_set_alarm_temp()
246 if (data->socdata->version == TEMPMON_IMX7D) in imx_set_alarm_temp()
247 alarm_value = alarm_temp / 1000 + data->c1 - 25; in imx_set_alarm_temp()
249 alarm_value = (data->c2 - alarm_temp) / data->c1; in imx_set_alarm_temp()
251 regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, in imx_set_alarm_temp()
252 soc_data->high_alarm_mask); in imx_set_alarm_temp()
253 regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, in imx_set_alarm_temp()
254 alarm_value << soc_data->high_alarm_shift); in imx_set_alarm_temp()
259 struct imx_thermal_data *data = tz->devdata; in imx_get_temp() local
260 const struct thermal_soc_data *soc_data = data->socdata; in imx_get_temp()
261 struct regmap *map = data->tempmon; in imx_get_temp()
266 if (data->mode == THERMAL_DEVICE_ENABLED) { in imx_get_temp()
268 regmap_read(map, soc_data->temp_data, &val); in imx_get_temp()
269 wait = !(val & soc_data->temp_valid_mask); in imx_get_temp()
276 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_get_temp()
277 soc_data->power_down_mask); in imx_get_temp()
278 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_get_temp()
279 soc_data->measure_temp_mask); in imx_get_temp()
291 regmap_read(map, soc_data->temp_data, &val); in imx_get_temp()
293 if (data->mode != THERMAL_DEVICE_ENABLED) { in imx_get_temp()
294 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_get_temp()
295 soc_data->measure_temp_mask); in imx_get_temp()
296 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_get_temp()
297 soc_data->power_down_mask); in imx_get_temp()
300 if ((val & soc_data->temp_valid_mask) == 0) { in imx_get_temp()
301 dev_dbg(&tz->device, "temp measurement never finished\n"); in imx_get_temp()
302 return -EAGAIN; in imx_get_temp()
305 n_meas = (val & soc_data->temp_value_mask) in imx_get_temp()
306 >> soc_data->temp_value_shift; in imx_get_temp()
309 if (data->socdata->version == TEMPMON_IMX7D) in imx_get_temp()
310 *temp = (n_meas - data->c1 + 25) * 1000; in imx_get_temp()
312 *temp = data->c2 - n_meas * data->c1; in imx_get_temp()
315 if (data->socdata->version == TEMPMON_IMX6Q) { in imx_get_temp()
316 if (data->alarm_temp == data->temp_passive && in imx_get_temp()
317 *temp >= data->temp_passive) in imx_get_temp()
318 imx_set_alarm_temp(data, data->temp_critical); in imx_get_temp()
319 if (data->alarm_temp == data->temp_critical && in imx_get_temp()
320 *temp < data->temp_passive) { in imx_get_temp()
321 imx_set_alarm_temp(data, data->temp_passive); in imx_get_temp()
322 dev_dbg(&tz->device, "thermal alarm off: T < %d\n", in imx_get_temp()
323 data->alarm_temp / 1000); in imx_get_temp()
327 if (*temp != data->last_temp) { in imx_get_temp()
328 dev_dbg(&tz->device, "millicelsius: %d\n", *temp); in imx_get_temp()
329 data->last_temp = *temp; in imx_get_temp()
333 if (!data->irq_enabled && *temp < data->alarm_temp) { in imx_get_temp()
334 data->irq_enabled = true; in imx_get_temp()
335 enable_irq(data->irq); in imx_get_temp()
344 struct imx_thermal_data *data = tz->devdata; in imx_get_mode() local
346 *mode = data->mode; in imx_get_mode()
354 struct imx_thermal_data *data = tz->devdata; in imx_set_mode() local
355 struct regmap *map = data->tempmon; in imx_set_mode()
356 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_mode()
359 tz->polling_delay = IMX_POLLING_DELAY; in imx_set_mode()
360 tz->passive_delay = IMX_PASSIVE_DELAY; in imx_set_mode()
362 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_set_mode()
363 soc_data->power_down_mask); in imx_set_mode()
364 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_set_mode()
365 soc_data->measure_temp_mask); in imx_set_mode()
367 if (!data->irq_enabled) { in imx_set_mode()
368 data->irq_enabled = true; in imx_set_mode()
369 enable_irq(data->irq); in imx_set_mode()
372 regmap_write(map, soc_data->sensor_ctrl + REG_CLR, in imx_set_mode()
373 soc_data->measure_temp_mask); in imx_set_mode()
374 regmap_write(map, soc_data->sensor_ctrl + REG_SET, in imx_set_mode()
375 soc_data->power_down_mask); in imx_set_mode()
377 tz->polling_delay = 0; in imx_set_mode()
378 tz->passive_delay = 0; in imx_set_mode()
380 if (data->irq_enabled) { in imx_set_mode()
381 disable_irq(data->irq); in imx_set_mode()
382 data->irq_enabled = false; in imx_set_mode()
386 data->mode = mode; in imx_set_mode()
402 struct imx_thermal_data *data = tz->devdata; in imx_get_crit_temp() local
404 *temp = data->temp_critical; in imx_get_crit_temp()
411 struct imx_thermal_data *data = tz->devdata; in imx_get_trip_temp() local
413 *temp = (trip == IMX_TRIP_PASSIVE) ? data->temp_passive : in imx_get_trip_temp()
414 data->temp_critical; in imx_get_trip_temp()
421 struct imx_thermal_data *data = tz->devdata; in imx_set_trip_temp() local
425 return -EPERM; in imx_set_trip_temp()
428 if (temp < 0 || temp > data->temp_critical) in imx_set_trip_temp()
429 return -EINVAL; in imx_set_trip_temp()
431 data->temp_passive = temp; in imx_set_trip_temp()
433 imx_set_alarm_temp(data, temp); in imx_set_trip_temp()
448 dev_err(&tz->device, in imx_bind()
450 tz->type, cdev->type, ret); in imx_bind()
464 dev_err(&tz->device, in imx_unbind()
466 tz->type, cdev->type, ret); in imx_unbind()
487 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_init_calib() local
492 dev_err(&pdev->dev, "invalid sensor calibration data\n"); in imx_init_calib()
493 return -EINVAL; in imx_init_calib()
497 * On i.MX7D, we only use the calibration data at 25C to get the temp, in imx_init_calib()
498 * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C. in imx_init_calib()
500 if (data->socdata->version == TEMPMON_IMX7D) { in imx_init_calib()
501 data->c1 = (ocotp_ana1 >> 9) & 0x1ff; in imx_init_calib()
512 * T = T1 + (N - N1) / (0.4148468 - 0.0015423 * N1) °C + 3.580661 °C in imx_init_calib()
513 * = [T1' - N1 / (0.4148468 - 0.0015423 * N1) °C] + N / (0.4148468 - 0.0015423 * N1) °C in imx_init_calib()
514 * = [T1' + N1 / (0.0015423 * N1 - 0.4148468) °C] - N / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
515 * = c2 - c1 * N in imx_init_calib()
520 * c1 = 1 / (0.0015423 * N1 - 0.4297157) °C in imx_init_calib()
521 * c2 = T1' + N1 / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
528 do_div(temp64, 15423 * n1 - 4148468); in imx_init_calib()
529 data->c1 = temp64; in imx_init_calib()
530 data->c2 = n1 * data->c1 + 28581; in imx_init_calib()
537 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_init_temp_grade() local
542 data->temp_grade = "Commercial"; in imx_init_temp_grade()
543 data->temp_max = 95000; in imx_init_temp_grade()
545 case 1: /* Extended Commercial (-20 °C to 105 °C) */ in imx_init_temp_grade()
546 data->temp_grade = "Extended Commercial"; in imx_init_temp_grade()
547 data->temp_max = 105000; in imx_init_temp_grade()
549 case 2: /* Industrial (-40 °C to 105 °C) */ in imx_init_temp_grade()
550 data->temp_grade = "Industrial"; in imx_init_temp_grade()
551 data->temp_max = 105000; in imx_init_temp_grade()
553 case 3: /* Automotive (-40 °C to 125 °C) */ in imx_init_temp_grade()
554 data->temp_grade = "Automotive"; in imx_init_temp_grade()
555 data->temp_max = 125000; in imx_init_temp_grade()
563 data->temp_critical = data->temp_max - (1000 * 5); in imx_init_temp_grade()
564 data->temp_passive = data->temp_max - (1000 * 10); in imx_init_temp_grade()
573 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, in imx_init_from_tempmon_data()
574 "fsl,tempmon-data"); in imx_init_from_tempmon_data()
577 dev_err(&pdev->dev, "failed to get sensor regmap: %d\n", ret); in imx_init_from_tempmon_data()
583 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
592 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
605 ret = nvmem_cell_read_u32(&pdev->dev, "calib", &val); in imx_init_from_nvmem_cells()
613 ret = nvmem_cell_read_u32(&pdev->dev, "temp_grade", &val); in imx_init_from_nvmem_cells()
623 struct imx_thermal_data *data = dev; in imx_thermal_alarm_irq() local
626 data->irq_enabled = false; in imx_thermal_alarm_irq()
633 struct imx_thermal_data *data = dev; in imx_thermal_alarm_irq_thread() local
635 dev_dbg(&data->tz->device, "THERMAL ALARM: T > %d\n", in imx_thermal_alarm_irq_thread()
636 data->alarm_temp / 1000); in imx_thermal_alarm_irq_thread()
638 thermal_zone_device_update(data->tz, THERMAL_EVENT_UNSPECIFIED); in imx_thermal_alarm_irq_thread()
644 { .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, },
645 { .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, },
646 { .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, },
652 * Create cooling device in case no #cooling-cells property is available in
655 static int imx_thermal_register_legacy_cooling(struct imx_thermal_data *data) in imx_thermal_register_legacy_cooling() argument
657 struct device_node *np = of_get_cpu_node(data->policy->cpu, NULL); in imx_thermal_register_legacy_cooling()
660 if (!np || !of_find_property(np, "#cooling-cells", NULL)) { in imx_thermal_register_legacy_cooling()
661 data->cdev = cpufreq_cooling_register(data->policy); in imx_thermal_register_legacy_cooling()
662 if (IS_ERR(data->cdev)) { in imx_thermal_register_legacy_cooling()
663 ret = PTR_ERR(data->cdev); in imx_thermal_register_legacy_cooling()
664 cpufreq_cpu_put(data->policy); in imx_thermal_register_legacy_cooling()
674 struct imx_thermal_data *data; in imx_thermal_probe() local
679 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in imx_thermal_probe()
680 if (!data) in imx_thermal_probe()
681 return -ENOMEM; in imx_thermal_probe()
683 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "fsl,tempmon"); in imx_thermal_probe()
686 dev_err(&pdev->dev, "failed to get tempmon regmap: %d\n", ret); in imx_thermal_probe()
689 data->tempmon = map; in imx_thermal_probe()
691 data->socdata = of_device_get_match_data(&pdev->dev); in imx_thermal_probe()
692 if (!data->socdata) { in imx_thermal_probe()
693 dev_err(&pdev->dev, "no device match found\n"); in imx_thermal_probe()
694 return -ENODEV; in imx_thermal_probe()
698 if (data->socdata->version == TEMPMON_IMX6SX) { in imx_thermal_probe()
706 regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET, in imx_thermal_probe()
707 data->socdata->low_alarm_mask); in imx_thermal_probe()
710 data->irq = platform_get_irq(pdev, 0); in imx_thermal_probe()
711 if (data->irq < 0) in imx_thermal_probe()
712 return data->irq; in imx_thermal_probe()
714 platform_set_drvdata(pdev, data); in imx_thermal_probe()
716 if (of_find_property(pdev->dev.of_node, "nvmem-cells", NULL)) { in imx_thermal_probe()
718 if (ret == -EPROBE_DEFER) in imx_thermal_probe()
721 dev_err(&pdev->dev, "failed to init from nvmem: %d\n", in imx_thermal_probe()
728 dev_err(&pdev->dev, "failed to init from from fsl,tempmon-data\n"); in imx_thermal_probe()
734 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
735 data->socdata->power_down_mask); in imx_thermal_probe()
736 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
737 data->socdata->measure_temp_mask); in imx_thermal_probe()
738 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
739 data->socdata->measure_freq_mask); in imx_thermal_probe()
740 if (data->socdata->version != TEMPMON_IMX7D) in imx_thermal_probe()
743 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
744 data->socdata->power_down_mask); in imx_thermal_probe()
746 data->policy = cpufreq_cpu_get(0); in imx_thermal_probe()
747 if (!data->policy) { in imx_thermal_probe()
749 return -EPROBE_DEFER; in imx_thermal_probe()
752 ret = imx_thermal_register_legacy_cooling(data); in imx_thermal_probe()
754 dev_err(&pdev->dev, in imx_thermal_probe()
759 data->thermal_clk = devm_clk_get(&pdev->dev, NULL); in imx_thermal_probe()
760 if (IS_ERR(data->thermal_clk)) { in imx_thermal_probe()
761 ret = PTR_ERR(data->thermal_clk); in imx_thermal_probe()
762 if (ret != -EPROBE_DEFER) in imx_thermal_probe()
763 dev_err(&pdev->dev, in imx_thermal_probe()
765 cpufreq_cooling_unregister(data->cdev); in imx_thermal_probe()
766 cpufreq_cpu_put(data->policy); in imx_thermal_probe()
777 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_probe()
779 dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret); in imx_thermal_probe()
780 cpufreq_cooling_unregister(data->cdev); in imx_thermal_probe()
781 cpufreq_cpu_put(data->policy); in imx_thermal_probe()
785 data->tz = thermal_zone_device_register("imx_thermal_zone", in imx_thermal_probe()
787 BIT(IMX_TRIP_PASSIVE), data, in imx_thermal_probe()
791 if (IS_ERR(data->tz)) { in imx_thermal_probe()
792 ret = PTR_ERR(data->tz); in imx_thermal_probe()
793 dev_err(&pdev->dev, in imx_thermal_probe()
795 clk_disable_unprepare(data->thermal_clk); in imx_thermal_probe()
796 cpufreq_cooling_unregister(data->cdev); in imx_thermal_probe()
797 cpufreq_cpu_put(data->policy); in imx_thermal_probe()
801 dev_info(&pdev->dev, "%s CPU temperature grade - max:%dC" in imx_thermal_probe()
802 " critical:%dC passive:%dC\n", data->temp_grade, in imx_thermal_probe()
803 data->temp_max / 1000, data->temp_critical / 1000, in imx_thermal_probe()
804 data->temp_passive / 1000); in imx_thermal_probe()
807 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
808 data->socdata->measure_freq_mask); in imx_thermal_probe()
810 regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET, in imx_thermal_probe()
811 measure_freq << data->socdata->measure_freq_shift); in imx_thermal_probe()
812 imx_set_alarm_temp(data, data->temp_passive); in imx_thermal_probe()
814 if (data->socdata->version == TEMPMON_IMX6SX) in imx_thermal_probe()
815 imx_set_panic_temp(data, data->temp_critical); in imx_thermal_probe()
817 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
818 data->socdata->power_down_mask); in imx_thermal_probe()
819 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
820 data->socdata->measure_temp_mask); in imx_thermal_probe()
822 data->irq_enabled = true; in imx_thermal_probe()
823 data->mode = THERMAL_DEVICE_ENABLED; in imx_thermal_probe()
825 ret = devm_request_threaded_irq(&pdev->dev, data->irq, in imx_thermal_probe()
827 0, "imx_thermal", data); in imx_thermal_probe()
829 dev_err(&pdev->dev, "failed to request alarm irq: %d\n", ret); in imx_thermal_probe()
830 clk_disable_unprepare(data->thermal_clk); in imx_thermal_probe()
831 thermal_zone_device_unregister(data->tz); in imx_thermal_probe()
832 cpufreq_cooling_unregister(data->cdev); in imx_thermal_probe()
833 cpufreq_cpu_put(data->policy); in imx_thermal_probe()
842 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_thermal_remove() local
843 struct regmap *map = data->tempmon; in imx_thermal_remove()
846 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_remove()
847 data->socdata->power_down_mask); in imx_thermal_remove()
848 if (!IS_ERR(data->thermal_clk)) in imx_thermal_remove()
849 clk_disable_unprepare(data->thermal_clk); in imx_thermal_remove()
851 thermal_zone_device_unregister(data->tz); in imx_thermal_remove()
852 cpufreq_cooling_unregister(data->cdev); in imx_thermal_remove()
853 cpufreq_cpu_put(data->policy); in imx_thermal_remove()
861 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_suspend() local
862 struct regmap *map = data->tempmon; in imx_thermal_suspend()
870 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_suspend()
871 data->socdata->measure_temp_mask); in imx_thermal_suspend()
872 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_suspend()
873 data->socdata->power_down_mask); in imx_thermal_suspend()
874 data->mode = THERMAL_DEVICE_DISABLED; in imx_thermal_suspend()
875 clk_disable_unprepare(data->thermal_clk); in imx_thermal_suspend()
882 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_resume() local
883 struct regmap *map = data->tempmon; in imx_thermal_resume()
886 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_resume()
890 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_resume()
891 data->socdata->power_down_mask); in imx_thermal_resume()
892 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_resume()
893 data->socdata->measure_temp_mask); in imx_thermal_resume()
894 data->mode = THERMAL_DEVICE_ENABLED; in imx_thermal_resume()
917 MODULE_ALIAS("platform:imx-thermal");