1 // SPDX-License-Identifier: GPL-2.0
15 #include <linux/nvmem-consumer.h>
58 /* millidegree celsius */
92 /* Temp Unit: millidegree Celsius */
96 	return tmdev->chip->offset - (reg * tmdev->chip->scale / 10);  in sun8i_ths_calc_temp()
103 		return -1191 * reg / 10 + 223000;  in sun50i_h5_calc_temp()
105 		return -1452 * reg / 10 + 259000;  in sun50i_h5_calc_temp()
107 		return -1590 * reg / 10 + 276000;  in sun50i_h5_calc_temp()
113 	struct ths_device *tmdev = s->tmdev;  in sun8i_ths_get_temp()
116 	regmap_read(tmdev->regmap, tmdev->chip->temp_data_base +  in sun8i_ths_get_temp()
117 		    0x4 * s->id, &val);  in sun8i_ths_get_temp()
121 		return -EAGAIN;  in sun8i_ths_get_temp()
123 	*temp = tmdev->chip->calc_temp(tmdev, s->id, val);  in sun8i_ths_get_temp()
132 	*temp += tmdev->chip->ft_deviation;  in sun8i_ths_get_temp()
153 	regmap_read(tmdev->regmap, SUN8I_THS_IS, &state);  in sun8i_h3_irq_ack()
155 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun8i_h3_irq_ack()
157 			regmap_write(tmdev->regmap, SUN8I_THS_IS,  in sun8i_h3_irq_ack()
170 	regmap_read(tmdev->regmap, SUN50I_H6_THS_DIS, &state);  in sun50i_h6_irq_ack()
172 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun50i_h6_irq_ack()
174 			regmap_write(tmdev->regmap, SUN50I_H6_THS_DIS,  in sun50i_h6_irq_ack()
188 	state = tmdev->chip->irq_ack(tmdev);  in sun8i_irq_thread()
190 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun8i_irq_thread()
192 			thermal_zone_device_update(tmdev->sensor[i].tzd,  in sun8i_irq_thread()
204 	if (!caldata[0] || callen < 2 * tmdev->chip->sensor_num)  in sun8i_h3_ths_calibrate()
205 		return -EINVAL;  in sun8i_h3_ths_calibrate()
207 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun8i_h3_ths_calibrate()
210 		regmap_update_bits(tmdev->regmap,  in sun8i_h3_ths_calibrate()
222 	struct device *dev = tmdev->dev;  in sun50i_h6_ths_calibrate()
225 	if (!caldata[0] || callen < 2 + 2 * tmdev->chip->sensor_num)  in sun50i_h6_ths_calibrate()
226 		return -EINVAL;  in sun50i_h6_ths_calibrate()
232 	 *	+-------+-------+-------+  in sun50i_h6_ths_calibrate()
234 	 *	+-------+-------+-------+  in sun50i_h6_ths_calibrate()
236 	 * The calibration data on the H6 is the ambient temperature and  in sun50i_h6_ths_calibrate()
246 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun50i_h6_ths_calibrate()
249 		int sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg);  in sun50i_h6_ths_calibrate()
252 		 * Calibration data is CALIBRATE_DEFAULT - (calculated  in sun50i_h6_ths_calibrate()
257 		cdata = CALIBRATE_DEFAULT -  in sun50i_h6_ths_calibrate()
258 			((sensor_temp - ft_temp) * 10 / tmdev->chip->scale);  in sun50i_h6_ths_calibrate()
261 			 * Calibration value more than 12-bit, but calibration  in sun50i_h6_ths_calibrate()
262 			 * register is 12-bit. In this case, ths hardware can  in sun50i_h6_ths_calibrate()
271 		regmap_update_bits(tmdev->regmap,  in sun50i_h6_ths_calibrate()
283 	struct device *dev = tmdev->dev;  in sun8i_ths_calibrate()
290 		if (PTR_ERR(calcell) == -EPROBE_DEFER)  in sun8i_ths_calibrate()
291 			return -EPROBE_DEFER;  in sun8i_ths_calibrate()
314 	tmdev->chip->calibrate(tmdev, caldata, callen);  in sun8i_ths_calibrate()
323 	struct device *dev = tmdev->dev;  in sun8i_ths_resource_init()
332 	tmdev->regmap = devm_regmap_init_mmio(dev, base, &config);  in sun8i_ths_resource_init()
333 	if (IS_ERR(tmdev->regmap))  in sun8i_ths_resource_init()
334 		return PTR_ERR(tmdev->regmap);  in sun8i_ths_resource_init()
336 	if (tmdev->chip->has_bus_clk_reset) {  in sun8i_ths_resource_init()
337 		tmdev->reset = devm_reset_control_get(dev, NULL);  in sun8i_ths_resource_init()
338 		if (IS_ERR(tmdev->reset))  in sun8i_ths_resource_init()
339 			return PTR_ERR(tmdev->reset);  in sun8i_ths_resource_init()
341 		tmdev->bus_clk = devm_clk_get(&pdev->dev, "bus");  in sun8i_ths_resource_init()
342 		if (IS_ERR(tmdev->bus_clk))  in sun8i_ths_resource_init()
343 			return PTR_ERR(tmdev->bus_clk);  in sun8i_ths_resource_init()
346 	if (tmdev->chip->has_mod_clk) {  in sun8i_ths_resource_init()
347 		tmdev->mod_clk = devm_clk_get(&pdev->dev, "mod");  in sun8i_ths_resource_init()
348 		if (IS_ERR(tmdev->mod_clk))  in sun8i_ths_resource_init()
349 			return PTR_ERR(tmdev->mod_clk);  in sun8i_ths_resource_init()
352 	ret = reset_control_deassert(tmdev->reset);  in sun8i_ths_resource_init()
356 	ret = clk_prepare_enable(tmdev->bus_clk);  in sun8i_ths_resource_init()
360 	ret = clk_set_rate(tmdev->mod_clk, 24000000);  in sun8i_ths_resource_init()
364 	ret = clk_prepare_enable(tmdev->mod_clk);  in sun8i_ths_resource_init()
375 	clk_disable_unprepare(tmdev->mod_clk);  in sun8i_ths_resource_init()
377 	clk_disable_unprepare(tmdev->bus_clk);  in sun8i_ths_resource_init()
379 	reset_control_assert(tmdev->reset);  in sun8i_ths_resource_init()
389 	regmap_write(tmdev->regmap, SUN8I_THS_MFC,  in sun8i_h3_thermal_init()
397 	 * x = period * clkin / 4096 / filter_samples - 1  in sun8i_h3_thermal_init()
400 	val = GENMASK(7 + tmdev->chip->sensor_num, 8);  in sun8i_h3_thermal_init()
401 	regmap_write(tmdev->regmap, SUN8I_THS_IC,  in sun8i_h3_thermal_init()
407 	 * x = T_acq * clkin - 1  in sun8i_h3_thermal_init()
410 	regmap_write(tmdev->regmap, SUN8I_THS_CTRL0,  in sun8i_h3_thermal_init()
412 	val = GENMASK(tmdev->chip->sensor_num - 1, 0);  in sun8i_h3_thermal_init()
413 	regmap_write(tmdev->regmap, SUN8I_THS_CTRL2,  in sun8i_h3_thermal_init()
433 	 * x = T_acq * clkin - 1  in sun50i_h6_thermal_init()
436 	regmap_write(tmdev->regmap, SUN50I_THS_CTRL0,  in sun50i_h6_thermal_init()
439 	regmap_write(tmdev->regmap, SUN50I_H6_THS_MFC,  in sun50i_h6_thermal_init()
447 	 * x = period * clkin / 4096 / filter_samples - 1  in sun50i_h6_thermal_init()
450 	regmap_write(tmdev->regmap, SUN50I_H6_THS_PC,  in sun50i_h6_thermal_init()
453 	val = GENMASK(tmdev->chip->sensor_num - 1, 0);  in sun50i_h6_thermal_init()
454 	regmap_write(tmdev->regmap, SUN50I_H6_THS_ENABLE, val);  in sun50i_h6_thermal_init()
456 	val = GENMASK(tmdev->chip->sensor_num - 1, 0);  in sun50i_h6_thermal_init()
457 	regmap_write(tmdev->regmap, SUN50I_H6_THS_DIC, val);  in sun50i_h6_thermal_init()
466 	for (i = 0; i < tmdev->chip->sensor_num; i++) {  in sun8i_ths_register()
467 		tmdev->sensor[i].tmdev = tmdev;  in sun8i_ths_register()
468 		tmdev->sensor[i].id = i;  in sun8i_ths_register()
469 		tmdev->sensor[i].tzd =  in sun8i_ths_register()
470 			devm_thermal_zone_of_sensor_register(tmdev->dev,  in sun8i_ths_register()
472 							     &tmdev->sensor[i],  in sun8i_ths_register()
474 		if (IS_ERR(tmdev->sensor[i].tzd))  in sun8i_ths_register()
475 			return PTR_ERR(tmdev->sensor[i].tzd);  in sun8i_ths_register()
477 		if (devm_thermal_add_hwmon_sysfs(tmdev->sensor[i].tzd))  in sun8i_ths_register()
478 			dev_warn(tmdev->dev,  in sun8i_ths_register()
488 	struct device *dev = &pdev->dev;  in sun8i_ths_probe()
493 		return -ENOMEM;  in sun8i_ths_probe()
495 	tmdev->dev = dev;  in sun8i_ths_probe()
496 	tmdev->chip = of_device_get_match_data(&pdev->dev);  in sun8i_ths_probe()
497 	if (!tmdev->chip)  in sun8i_ths_probe()
498 		return -EINVAL;  in sun8i_ths_probe()
510 	ret = tmdev->chip->init(tmdev);  in sun8i_ths_probe()
536 	clk_disable_unprepare(tmdev->mod_clk);  in sun8i_ths_remove()
537 	clk_disable_unprepare(tmdev->bus_clk);  in sun8i_ths_remove()
538 	reset_control_assert(tmdev->reset);  in sun8i_ths_remove()
631 	{ .compatible = "allwinner,sun8i-a83t-ths", .data = &sun8i_a83t_ths },
632 	{ .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths },
633 	{ .compatible = "allwinner,sun8i-r40-ths", .data = &sun8i_r40_ths },
634 	{ .compatible = "allwinner,sun50i-a64-ths", .data = &sun50i_a64_ths },
635 	{ .compatible = "allwinner,sun50i-a100-ths", .data = &sun50i_a100_ths },
636 	{ .compatible = "allwinner,sun50i-h5-ths", .data = &sun50i_h5_ths },
637 	{ .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths },
646 		.name = "sun8i-thermal",