Lines Matching +full:tempmon +full:- +full:data
1 // SPDX-License-Identifier: GPL-2.0
17 #include <linux/nvmem-consumer.h>
206 struct regmap *tempmon; member
218 static void imx_set_panic_temp(struct imx_thermal_data *data, in imx_set_panic_temp() argument
221 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_panic_temp()
222 struct regmap *map = data->tempmon; in imx_set_panic_temp()
225 critical_value = (data->c2 - panic_temp) / data->c1; in imx_set_panic_temp()
227 regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, in imx_set_panic_temp()
228 soc_data->panic_alarm_mask); in imx_set_panic_temp()
229 regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, in imx_set_panic_temp()
230 critical_value << soc_data->panic_alarm_shift); in imx_set_panic_temp()
233 static void imx_set_alarm_temp(struct imx_thermal_data *data, in imx_set_alarm_temp() argument
236 struct regmap *map = data->tempmon; in imx_set_alarm_temp()
237 const struct thermal_soc_data *soc_data = data->socdata; in imx_set_alarm_temp()
240 data->alarm_temp = alarm_temp; in imx_set_alarm_temp()
242 if (data->socdata->version == TEMPMON_IMX7D) in imx_set_alarm_temp()
243 alarm_value = alarm_temp / 1000 + data->c1 - 25; in imx_set_alarm_temp()
245 alarm_value = (data->c2 - alarm_temp) / data->c1; in imx_set_alarm_temp()
247 regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, in imx_set_alarm_temp()
248 soc_data->high_alarm_mask); in imx_set_alarm_temp()
249 regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, in imx_set_alarm_temp()
250 alarm_value << soc_data->high_alarm_shift); in imx_set_alarm_temp()
255 struct imx_thermal_data *data = thermal_zone_device_priv(tz); in imx_get_temp() local
256 const struct thermal_soc_data *soc_data = data->socdata; in imx_get_temp()
257 struct regmap *map = data->tempmon; in imx_get_temp()
262 ret = pm_runtime_resume_and_get(data->dev); in imx_get_temp()
266 regmap_read(map, soc_data->temp_data, &val); in imx_get_temp()
268 if ((val & soc_data->temp_valid_mask) == 0) in imx_get_temp()
269 return -EAGAIN; in imx_get_temp()
271 n_meas = (val & soc_data->temp_value_mask) in imx_get_temp()
272 >> soc_data->temp_value_shift; in imx_get_temp()
275 if (data->socdata->version == TEMPMON_IMX7D) in imx_get_temp()
276 *temp = (n_meas - data->c1 + 25) * 1000; in imx_get_temp()
278 *temp = data->c2 - n_meas * data->c1; in imx_get_temp()
281 if (data->socdata->version == TEMPMON_IMX6Q) { in imx_get_temp()
282 if (data->alarm_temp == trips[IMX_TRIP_PASSIVE].temperature && in imx_get_temp()
284 imx_set_alarm_temp(data, trips[IMX_TRIP_CRITICAL].temperature); in imx_get_temp()
285 if (data->alarm_temp == trips[IMX_TRIP_CRITICAL].temperature && in imx_get_temp()
287 imx_set_alarm_temp(data, trips[IMX_TRIP_PASSIVE].temperature); in imx_get_temp()
288 dev_dbg(data->dev, "thermal alarm off: T < %d\n", in imx_get_temp()
289 data->alarm_temp / 1000); in imx_get_temp()
293 if (*temp != data->last_temp) { in imx_get_temp()
294 dev_dbg(data->dev, "millicelsius: %d\n", *temp); in imx_get_temp()
295 data->last_temp = *temp; in imx_get_temp()
299 if (!data->irq_enabled && *temp < data->alarm_temp) { in imx_get_temp()
300 data->irq_enabled = true; in imx_get_temp()
301 enable_irq(data->irq); in imx_get_temp()
304 pm_runtime_put(data->dev); in imx_get_temp()
312 struct imx_thermal_data *data = thermal_zone_device_priv(tz); in imx_change_mode() local
315 pm_runtime_get(data->dev); in imx_change_mode()
317 if (!data->irq_enabled) { in imx_change_mode()
318 data->irq_enabled = true; in imx_change_mode()
319 enable_irq(data->irq); in imx_change_mode()
322 pm_runtime_put(data->dev); in imx_change_mode()
324 if (data->irq_enabled) { in imx_change_mode()
325 disable_irq(data->irq); in imx_change_mode()
326 data->irq_enabled = false; in imx_change_mode()
336 struct imx_thermal_data *data = thermal_zone_device_priv(tz); in imx_set_trip_temp() local
340 ret = pm_runtime_resume_and_get(data->dev); in imx_set_trip_temp()
350 return -EPERM; in imx_set_trip_temp()
354 return -EINVAL; in imx_set_trip_temp()
356 imx_set_alarm_temp(data, temp); in imx_set_trip_temp()
358 pm_runtime_put(data->dev); in imx_set_trip_temp()
388 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_init_calib() local
393 dev_err(&pdev->dev, "invalid sensor calibration data\n"); in imx_init_calib()
394 return -EINVAL; in imx_init_calib()
398 * On i.MX7D, we only use the calibration data at 25C to get the temp, in imx_init_calib()
399 * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C. in imx_init_calib()
401 if (data->socdata->version == TEMPMON_IMX7D) { in imx_init_calib()
402 data->c1 = (ocotp_ana1 >> 9) & 0x1ff; in imx_init_calib()
413 * T = T1 + (N - N1) / (0.4148468 - 0.0015423 * N1) °C + 3.580661 °C in imx_init_calib()
414 * = [T1' - N1 / (0.4148468 - 0.0015423 * N1) °C] + N / (0.4148468 - 0.0015423 * N1) °C in imx_init_calib()
415 * = [T1' + N1 / (0.0015423 * N1 - 0.4148468) °C] - N / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
416 * = c2 - c1 * N in imx_init_calib()
421 * c1 = 1 / (0.0015423 * N1 - 0.4297157) °C in imx_init_calib()
422 * c2 = T1' + N1 / (0.0015423 * N1 - 0.4148468) °C in imx_init_calib()
429 do_div(temp64, 15423 * n1 - 4148468); in imx_init_calib()
430 data->c1 = temp64; in imx_init_calib()
431 data->c2 = n1 * data->c1 + 28581; in imx_init_calib()
438 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_init_temp_grade() local
443 data->temp_grade = "Commercial"; in imx_init_temp_grade()
444 data->temp_max = 95000; in imx_init_temp_grade()
446 case 1: /* Extended Commercial (-20 °C to 105 °C) */ in imx_init_temp_grade()
447 data->temp_grade = "Extended Commercial"; in imx_init_temp_grade()
448 data->temp_max = 105000; in imx_init_temp_grade()
450 case 2: /* Industrial (-40 °C to 105 °C) */ in imx_init_temp_grade()
451 data->temp_grade = "Industrial"; in imx_init_temp_grade()
452 data->temp_max = 105000; in imx_init_temp_grade()
454 case 3: /* Automotive (-40 °C to 125 °C) */ in imx_init_temp_grade()
455 data->temp_grade = "Automotive"; in imx_init_temp_grade()
456 data->temp_max = 125000; in imx_init_temp_grade()
464 trips[IMX_TRIP_PASSIVE].temperature = data->temp_max - (1000 * 10); in imx_init_temp_grade()
465 trips[IMX_TRIP_CRITICAL].temperature = data->temp_max - (1000 * 5); in imx_init_temp_grade()
474 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, in imx_init_from_tempmon_data()
475 "fsl,tempmon-data"); in imx_init_from_tempmon_data()
478 dev_err(&pdev->dev, "failed to get sensor regmap: %d\n", ret); in imx_init_from_tempmon_data()
484 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
493 dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret); in imx_init_from_tempmon_data()
506 ret = nvmem_cell_read_u32(&pdev->dev, "calib", &val); in imx_init_from_nvmem_cells()
514 ret = nvmem_cell_read_u32(&pdev->dev, "temp_grade", &val); in imx_init_from_nvmem_cells()
524 struct imx_thermal_data *data = dev; in imx_thermal_alarm_irq() local
527 data->irq_enabled = false; in imx_thermal_alarm_irq()
534 struct imx_thermal_data *data = dev; in imx_thermal_alarm_irq_thread() local
536 dev_dbg(data->dev, "THERMAL ALARM: T > %d\n", data->alarm_temp / 1000); in imx_thermal_alarm_irq_thread()
538 thermal_zone_device_update(data->tz, THERMAL_EVENT_UNSPECIFIED); in imx_thermal_alarm_irq_thread()
544 { .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, },
545 { .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, },
546 { .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, },
553 * Create cooling device in case no #cooling-cells property is available in
556 static int imx_thermal_register_legacy_cooling(struct imx_thermal_data *data) in imx_thermal_register_legacy_cooling() argument
561 data->policy = cpufreq_cpu_get(0); in imx_thermal_register_legacy_cooling()
562 if (!data->policy) { in imx_thermal_register_legacy_cooling()
564 return -EPROBE_DEFER; in imx_thermal_register_legacy_cooling()
567 np = of_get_cpu_node(data->policy->cpu, NULL); in imx_thermal_register_legacy_cooling()
569 if (!np || !of_property_present(np, "#cooling-cells")) { in imx_thermal_register_legacy_cooling()
570 data->cdev = cpufreq_cooling_register(data->policy); in imx_thermal_register_legacy_cooling()
571 if (IS_ERR(data->cdev)) { in imx_thermal_register_legacy_cooling()
572 ret = PTR_ERR(data->cdev); in imx_thermal_register_legacy_cooling()
573 cpufreq_cpu_put(data->policy); in imx_thermal_register_legacy_cooling()
582 static void imx_thermal_unregister_legacy_cooling(struct imx_thermal_data *data) in imx_thermal_unregister_legacy_cooling() argument
584 cpufreq_cooling_unregister(data->cdev); in imx_thermal_unregister_legacy_cooling()
585 cpufreq_cpu_put(data->policy); in imx_thermal_unregister_legacy_cooling()
590 static inline int imx_thermal_register_legacy_cooling(struct imx_thermal_data *data) in imx_thermal_register_legacy_cooling() argument
595 static inline void imx_thermal_unregister_legacy_cooling(struct imx_thermal_data *data) in imx_thermal_unregister_legacy_cooling() argument
602 struct imx_thermal_data *data; in imx_thermal_probe() local
607 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in imx_thermal_probe()
608 if (!data) in imx_thermal_probe()
609 return -ENOMEM; in imx_thermal_probe()
611 data->dev = &pdev->dev; in imx_thermal_probe()
613 map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "fsl,tempmon"); in imx_thermal_probe()
616 dev_err(&pdev->dev, "failed to get tempmon regmap: %d\n", ret); in imx_thermal_probe()
619 data->tempmon = map; in imx_thermal_probe()
621 data->socdata = of_device_get_match_data(&pdev->dev); in imx_thermal_probe()
622 if (!data->socdata) { in imx_thermal_probe()
623 dev_err(&pdev->dev, "no device match found\n"); in imx_thermal_probe()
624 return -ENODEV; in imx_thermal_probe()
628 if (data->socdata->version == TEMPMON_IMX6SX) { in imx_thermal_probe()
636 regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET, in imx_thermal_probe()
637 data->socdata->low_alarm_mask); in imx_thermal_probe()
640 data->irq = platform_get_irq(pdev, 0); in imx_thermal_probe()
641 if (data->irq < 0) in imx_thermal_probe()
642 return data->irq; in imx_thermal_probe()
644 platform_set_drvdata(pdev, data); in imx_thermal_probe()
646 if (of_property_present(pdev->dev.of_node, "nvmem-cells")) { in imx_thermal_probe()
649 return dev_err_probe(&pdev->dev, ret, in imx_thermal_probe()
654 dev_err(&pdev->dev, "failed to init from fsl,tempmon-data\n"); in imx_thermal_probe()
660 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
661 data->socdata->power_down_mask); in imx_thermal_probe()
662 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
663 data->socdata->measure_temp_mask); in imx_thermal_probe()
664 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
665 data->socdata->measure_freq_mask); in imx_thermal_probe()
666 if (data->socdata->version != TEMPMON_IMX7D) in imx_thermal_probe()
669 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
670 data->socdata->power_down_mask); in imx_thermal_probe()
672 ret = imx_thermal_register_legacy_cooling(data); in imx_thermal_probe()
674 return dev_err_probe(&pdev->dev, ret, in imx_thermal_probe()
677 data->thermal_clk = devm_clk_get(&pdev->dev, NULL); in imx_thermal_probe()
678 if (IS_ERR(data->thermal_clk)) { in imx_thermal_probe()
679 ret = PTR_ERR(data->thermal_clk); in imx_thermal_probe()
680 if (ret != -EPROBE_DEFER) in imx_thermal_probe()
681 dev_err(&pdev->dev, in imx_thermal_probe()
693 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_probe()
695 dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret); in imx_thermal_probe()
699 data->tz = thermal_zone_device_register_with_trips("imx_thermal_zone", in imx_thermal_probe()
702 BIT(IMX_TRIP_PASSIVE), data, in imx_thermal_probe()
706 if (IS_ERR(data->tz)) { in imx_thermal_probe()
707 ret = PTR_ERR(data->tz); in imx_thermal_probe()
708 dev_err(&pdev->dev, in imx_thermal_probe()
713 dev_info(&pdev->dev, "%s CPU temperature grade - max:%dC" in imx_thermal_probe()
714 " critical:%dC passive:%dC\n", data->temp_grade, in imx_thermal_probe()
715 data->temp_max / 1000, trips[IMX_TRIP_CRITICAL].temperature / 1000, in imx_thermal_probe()
719 regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, in imx_thermal_probe()
720 data->socdata->measure_freq_mask); in imx_thermal_probe()
722 regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET, in imx_thermal_probe()
723 measure_freq << data->socdata->measure_freq_shift); in imx_thermal_probe()
724 imx_set_alarm_temp(data, trips[IMX_TRIP_PASSIVE].temperature); in imx_thermal_probe()
726 if (data->socdata->version == TEMPMON_IMX6SX) in imx_thermal_probe()
727 imx_set_panic_temp(data, trips[IMX_TRIP_CRITICAL].temperature); in imx_thermal_probe()
729 regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, in imx_thermal_probe()
730 data->socdata->power_down_mask); in imx_thermal_probe()
731 regmap_write(map, data->socdata->sensor_ctrl + REG_SET, in imx_thermal_probe()
732 data->socdata->measure_temp_mask); in imx_thermal_probe()
737 pm_runtime_set_active(&pdev->dev); in imx_thermal_probe()
738 pm_runtime_enable(data->dev); in imx_thermal_probe()
740 ret = pm_runtime_resume_and_get(data->dev); in imx_thermal_probe()
744 data->irq_enabled = true; in imx_thermal_probe()
745 ret = thermal_zone_device_enable(data->tz); in imx_thermal_probe()
749 ret = devm_request_threaded_irq(&pdev->dev, data->irq, in imx_thermal_probe()
751 0, "imx_thermal", data); in imx_thermal_probe()
753 dev_err(&pdev->dev, "failed to request alarm irq: %d\n", ret); in imx_thermal_probe()
757 pm_runtime_put(data->dev); in imx_thermal_probe()
762 thermal_zone_device_unregister(data->tz); in imx_thermal_probe()
764 pm_runtime_put_noidle(data->dev); in imx_thermal_probe()
765 pm_runtime_disable(data->dev); in imx_thermal_probe()
767 clk_disable_unprepare(data->thermal_clk); in imx_thermal_probe()
769 imx_thermal_unregister_legacy_cooling(data); in imx_thermal_probe()
776 struct imx_thermal_data *data = platform_get_drvdata(pdev); in imx_thermal_remove() local
778 pm_runtime_put_noidle(data->dev); in imx_thermal_remove()
779 pm_runtime_disable(data->dev); in imx_thermal_remove()
781 thermal_zone_device_unregister(data->tz); in imx_thermal_remove()
782 imx_thermal_unregister_legacy_cooling(data); in imx_thermal_remove()
789 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_suspend() local
799 ret = thermal_zone_device_disable(data->tz); in imx_thermal_suspend()
803 return pm_runtime_force_suspend(data->dev); in imx_thermal_suspend()
808 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_resume() local
811 ret = pm_runtime_force_resume(data->dev); in imx_thermal_resume()
815 return thermal_zone_device_enable(data->tz); in imx_thermal_resume()
820 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_runtime_suspend() local
821 const struct thermal_soc_data *socdata = data->socdata; in imx_thermal_runtime_suspend()
822 struct regmap *map = data->tempmon; in imx_thermal_runtime_suspend()
825 ret = regmap_write(map, socdata->sensor_ctrl + REG_CLR, in imx_thermal_runtime_suspend()
826 socdata->measure_temp_mask); in imx_thermal_runtime_suspend()
830 ret = regmap_write(map, socdata->sensor_ctrl + REG_SET, in imx_thermal_runtime_suspend()
831 socdata->power_down_mask); in imx_thermal_runtime_suspend()
835 clk_disable_unprepare(data->thermal_clk); in imx_thermal_runtime_suspend()
842 struct imx_thermal_data *data = dev_get_drvdata(dev); in imx_thermal_runtime_resume() local
843 const struct thermal_soc_data *socdata = data->socdata; in imx_thermal_runtime_resume()
844 struct regmap *map = data->tempmon; in imx_thermal_runtime_resume()
847 ret = clk_prepare_enable(data->thermal_clk); in imx_thermal_runtime_resume()
851 ret = regmap_write(map, socdata->sensor_ctrl + REG_CLR, in imx_thermal_runtime_resume()
852 socdata->power_down_mask); in imx_thermal_runtime_resume()
856 ret = regmap_write(map, socdata->sensor_ctrl + REG_SET, in imx_thermal_runtime_resume()
857 socdata->measure_temp_mask); in imx_thermal_runtime_resume()
890 MODULE_ALIAS("platform:imx-thermal");