1 // SPDX-License-Identifier: GPL-2.0-or-later
28 /* period unit calculated in BUS clock * 256 scaling-up */
66  * - Fire BIT(1) when lower than EN7581_COLD_THRE
67  * - Fire BIT(0) and BIT(5) when higher than EN7581_HOT2NORMAL_THRE or
105  * - Fire BIT(1) when lower than EN7581_COLD_THRE
106  * - Fire BIT(0) and BIT(5) when higher than EN7581_HOT2NORMAL_THRE or
144  * the same addr is used for ADC volt and valid reading.
156  * - 1 sample
157  * - 2 sample and make average of them
158  * - 4,6,10,16 sample, drop max and min and make average of them
184 /* Convert temp to raw value as read from ADC	((((temp / 100) - init) * slope) / 1000) + offset */
185 #define TEMP_TO_RAW(priv, temp)			((((((temp) / 100) - (priv)->init_temp) * \
186 						  (priv)->default_slope) / 1000) + \
187 						 (priv)->default_offset)
189 /* Convert raw to temp				((((temp - offset) * 1000) / slope + init) * 100) */
190 #define RAW_TO_TEMP(priv, raw)			(((((raw) - (priv)->default_offset) * 1000) / \
191 						  (priv)->default_slope + \
192 						  (priv)->init_temp) * 100)
211 	regmap_read(priv->chip_scu, EN7581_DOUT_TADC, &val);  in airoha_get_thermal_ADC()
220 	regmap_read(priv->chip_scu, EN7581_PLLRG_PROTECT, &pllrg);  in airoha_init_thermal_ADC_mode()
223 	regmap_write(priv->chip_scu, EN7581_PLLRG_PROTECT, EN7581_SCU_THERMAL_PROTECT_KEY);  in airoha_init_thermal_ADC_mode()
225 	regmap_write(priv->chip_scu, EN7581_PWD_TADC, adc_mux);  in airoha_init_thermal_ADC_mode()
228 	regmap_write(priv->chip_scu, EN7581_PLLRG_PROTECT, pllrg);  in airoha_init_thermal_ADC_mode()
249 	avg_value -= (min_value + max_value);  in airoha_thermal_get_temp()
250 	avg_value /= AIROHA_MAX_SAMPLES - 2;  in airoha_thermal_get_temp()
269 		       priv->base + EN7581_TEMPOFFSETH);  in airoha_thermal_set_trips()
274 	if (low != -INT_MAX) {  in airoha_thermal_set_trips()
281 		       priv->base + EN7581_TEMPOFFSETL);  in airoha_thermal_set_trips()
288 		writel(EN7581_SENSE0_EN, priv->base + EN7581_TEMPMONCTL0);  in airoha_thermal_set_trips()
305 	status = readl(priv->base + EN7581_TEMPMONINTSTS);  in airoha_thermal_irq()
321 	writel(status, priv->base + EN7581_TEMPMONINTSTS);  in airoha_thermal_irq()
324 		thermal_zone_device_update(priv->tz, event);  in airoha_thermal_irq()
334 	/* Setup thermal sensor to ADC mode and setup the mux to DIODE1 */  in airoha_thermal_setup_adc_val()
336 	/* sleep 10 ms for ADC to enable */  in airoha_thermal_setup_adc_val()
339 	efuse_calib_info = readl(priv->base + EN7581_EFUSE_TEMP_OFFSET_REG);  in airoha_thermal_setup_adc_val()
341 		priv->default_offset = FIELD_GET(EN7581_EFUSE_TEMP_OFFSET, efuse_calib_info);  in airoha_thermal_setup_adc_val()
343 		cpu_sensor = readl(priv->base + EN7581_EFUSE_TEMP_CPU_SENSOR_REG);  in airoha_thermal_setup_adc_val()
345 			priv->default_slope = EN7581_SLOPE_X100_DIO_DEFAULT;  in airoha_thermal_setup_adc_val()
346 			priv->init_temp = EN7581_INIT_TEMP_FTK_X10;  in airoha_thermal_setup_adc_val()
348 			priv->default_slope = EN7581_SLOPE_X100_DIO_AVS;  in airoha_thermal_setup_adc_val()
349 			priv->init_temp = EN7581_INIT_TEMP_CPK_X10;  in airoha_thermal_setup_adc_val()
352 		priv->default_offset = airoha_get_thermal_ADC(priv);  in airoha_thermal_setup_adc_val()
353 		priv->default_slope = EN7581_SLOPE_X100_DIO_DEFAULT;  in airoha_thermal_setup_adc_val()
354 		priv->init_temp = EN7581_INIT_TEMP_NONK_X10;  in airoha_thermal_setup_adc_val()
361 	/* Set measure mode */  in airoha_thermal_setup_monitor()
363 	       priv->base + EN7581_TEMPMSRCTL0);  in airoha_thermal_setup_monitor()
366 	 * Configure ADC valid reading addr  in airoha_thermal_setup_monitor()
369 	 * addresses to configure how to access and setup an ADC for the  in airoha_thermal_setup_monitor()
372 	 * up to 4 different sensors from the same ADC that can be  in airoha_thermal_setup_monitor()
373 	 * switched by tuning the ADC mux or writing address.  in airoha_thermal_setup_monitor()
378 	writel(priv->scu_adc_res.start + EN7581_DOUT_TADC,  in airoha_thermal_setup_monitor()
379 	       priv->base + EN7581_TEMPADCVALIDADDR);  in airoha_thermal_setup_monitor()
382 	 * Configure valid bit on a fake value of bit 16. The ADC outputs  in airoha_thermal_setup_monitor()
386 	       priv->base + EN7581_TEMPADCVALIDMASK);  in airoha_thermal_setup_monitor()
389 	 * AHB supports max 12 bytes for ADC voltage. Shift the read  in airoha_thermal_setup_monitor()
395 	       priv->base + EN7581_TEMPADCVOLTAGESHIFT);  in airoha_thermal_setup_monitor()
399 	       priv->base + EN7581_TEMPMONCTL1);  in airoha_thermal_setup_monitor()
407 	       priv->base + EN7581_TEMPMONCTL2);  in airoha_thermal_setup_monitor()
411 	       priv->base + EN7581_TEMPAHBPOLL);  in airoha_thermal_setup_monitor()
418 	struct device *dev = &pdev->dev;  in airoha_thermal_probe()
423 		return -ENOMEM;  in airoha_thermal_probe()
425 	priv->base = devm_platform_ioremap_resource(pdev, 0);  in airoha_thermal_probe()
426 	if (IS_ERR(priv->base))  in airoha_thermal_probe()
427 		return PTR_ERR(priv->base);  in airoha_thermal_probe()
429 	chip_scu_np = of_parse_phandle(dev->of_node, "airoha,chip-scu", 0);  in airoha_thermal_probe()
431 		return -EINVAL;  in airoha_thermal_probe()
433 	priv->chip_scu = syscon_node_to_regmap(chip_scu_np);  in airoha_thermal_probe()
434 	if (IS_ERR(priv->chip_scu))  in airoha_thermal_probe()
435 		return PTR_ERR(priv->chip_scu);  in airoha_thermal_probe()
437 	of_address_to_resource(chip_scu_np, 0, &priv->scu_adc_res);  in airoha_thermal_probe()
444 	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,  in airoha_thermal_probe()
446 					pdev->name, priv);  in airoha_thermal_probe()
456 	priv->tz = devm_thermal_of_zone_register(dev, 0, priv, &thdev_ops);  in airoha_thermal_probe()
457 	if (IS_ERR(priv->tz)) {  in airoha_thermal_probe()
459 		return PTR_ERR(priv->tz);  in airoha_thermal_probe()
466 	       priv->base + EN7581_TEMPMONINT);  in airoha_thermal_probe()
472 	{ .compatible = "airoha,en7581-thermal" },
479 		.name = "airoha-thermal",