1 // SPDX-License-Identifier: GPL-2.0-or-later
12 #include <linux/hwmon-sysfs.h>
43 	[DA9052_ADC_TSI_XN]	=	"ADC TS X-",
44 	[DA9052_ADC_TSI_YN]	=	"ADC TS Y-",
46 	[DA9052_ADC_VBBAT]	=	"BACK-UP BATTERY VOLTAGE",
52 	return DIV_ROUND_CLOSEST(value * 2000, 1023) + 2500;  in volt_reg_to_mv()
58 	return DIV_ROUND_CLOSEST(value * 2500, 1023);  in input_reg_to_mv()
64 	return DIV_ROUND_CLOSEST(value * 5000, 1023);  in vbbat_reg_to_mv()
69 	return DIV_ROUND_CLOSEST(value * hwmon->tsiref_mv, 1023);  in input_tsireg_to_mv()
82 				 DA9052_ADCCONT_AUTOVDDEN, 0);  in da9052_disable_vddout_channel()
91 	mutex_lock(&hwmon->hwmon_lock);  in da9052_vddout_show()
93 	ret = da9052_enable_vddout_channel(hwmon->da9052);  in da9052_vddout_show()
94 	if (ret < 0)  in da9052_vddout_show()
97 	vdd = da9052_reg_read(hwmon->da9052, DA9052_VDD_RES_REG);  in da9052_vddout_show()
98 	if (vdd < 0) {  in da9052_vddout_show()
103 	ret = da9052_disable_vddout_channel(hwmon->da9052);  in da9052_vddout_show()
104 	if (ret < 0)  in da9052_vddout_show()
107 	mutex_unlock(&hwmon->hwmon_lock);  in da9052_vddout_show()
111 	da9052_disable_vddout_channel(hwmon->da9052);  in da9052_vddout_show()
113 	mutex_unlock(&hwmon->hwmon_lock);  in da9052_vddout_show()
123 	ret = da9052_reg_read(hwmon->da9052, DA9052_ICHG_AV_REG);  in da9052_ich_show()
124 	if (ret < 0)  in da9052_ich_show()
136 	return sprintf(buf, "%d\n", da9052_adc_read_temp(hwmon->da9052));  in da9052_tbat_show()
145 	ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBAT);  in da9052_vbat_show()
146 	if (ret < 0)  in da9052_vbat_show()
157 	int channel = to_sensor_dev_attr(devattr)->index;  in da9052_misc_channel_show()
160 	ret = da9052_adc_manual_read(hwmon->da9052, channel);  in da9052_misc_channel_show()
161 	if (ret < 0)  in da9052_misc_channel_show()
186 	return da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_B_REG, val);  in da9052_request_tsi_read()
195 	err = da9052_group_read(hwmon->da9052, DA9052_TSI_X_MSB_REG,  in da9052_get_tsi_result()
203 		msb = regs[0] << DA9052_TSILSB_TSIXL_BITS;  in da9052_get_tsi_result()
214 		return -EINVAL;  in da9052_get_tsi_result()
226 	reinit_completion(&hwmon->tsidone);  in __da9052_read_tsi()
229 	if (ret < 0)  in __da9052_read_tsi()
233 	if (!wait_for_completion_timeout(&hwmon->tsidone,  in __da9052_read_tsi()
235 		return -ETIMEDOUT;  in __da9052_read_tsi()
244 	int channel = to_sensor_dev_attr(devattr)->index;  in da9052_tsi_show()
247 	mutex_lock(&hwmon->da9052->auxadc_lock);  in da9052_tsi_show()
249 	mutex_unlock(&hwmon->da9052->auxadc_lock);  in da9052_tsi_show()
251 	if (ret < 0)  in da9052_tsi_show()
264 	tjunc = da9052_reg_read(hwmon->da9052, DA9052_TJUNC_RES_REG);  in da9052_tjunc_show()
265 	if (tjunc < 0)  in da9052_tjunc_show()
268 	toffset = da9052_reg_read(hwmon->da9052, DA9052_T_OFFSET_REG);  in da9052_tjunc_show()
269 	if (toffset < 0)  in da9052_tjunc_show()
273 	 * Degrees celsius = 1.708 * (TJUNC_RES - T_OFFSET) - 108.8  in da9052_tjunc_show()
276 	return sprintf(buf, "%d\n", 1708 * (tjunc - toffset) - 108800);  in da9052_tjunc_show()
285 	ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBBAT);  in da9052_vbbat_show()
286 	if (ret < 0)  in da9052_vbbat_show()
296 		       input_names[to_sensor_dev_attr(devattr)->index]);  in label_show()
308 	if (!hwmon->tsi_as_adc) {  in da9052_channel_is_visible()
309 		switch (sattr->index) {  in da9052_channel_is_visible()
314 			return 0;  in da9052_channel_is_visible()
318 	return attr->mode;  in da9052_channel_is_visible()
391 	complete(&hwmon->tsidone);  in da9052_tsi_datardy_irq()
397 	struct device *dev = &pdev->dev;  in da9052_hwmon_probe()
404 		return -ENOMEM;  in da9052_hwmon_probe()
408 	mutex_init(&hwmon->hwmon_lock);  in da9052_hwmon_probe()
409 	hwmon->da9052 = dev_get_drvdata(pdev->dev.parent);  in da9052_hwmon_probe()
411 	init_completion(&hwmon->tsidone);  in da9052_hwmon_probe()
413 	hwmon->tsi_as_adc =  in da9052_hwmon_probe()
414 		device_property_read_bool(pdev->dev.parent, "dlg,tsi-as-adc");  in da9052_hwmon_probe()
416 	if (hwmon->tsi_as_adc) {  in da9052_hwmon_probe()
417 		hwmon->tsiref = devm_regulator_get(pdev->dev.parent, "tsiref");  in da9052_hwmon_probe()
418 		if (IS_ERR(hwmon->tsiref)) {  in da9052_hwmon_probe()
419 			err = PTR_ERR(hwmon->tsiref);  in da9052_hwmon_probe()
420 			dev_err(&pdev->dev, "failed to get tsiref: %d", err);  in da9052_hwmon_probe()
424 		err = regulator_enable(hwmon->tsiref);  in da9052_hwmon_probe()
428 		hwmon->tsiref_mv = regulator_get_voltage(hwmon->tsiref);  in da9052_hwmon_probe()
429 		if (hwmon->tsiref_mv < 0) {  in da9052_hwmon_probe()
430 			err = hwmon->tsiref_mv;  in da9052_hwmon_probe()
435 		hwmon->tsiref_mv /= 1000;  in da9052_hwmon_probe()
438 		if (hwmon->tsiref_mv < 1800 || hwmon->tsiref_mv > 2600) {  in da9052_hwmon_probe()
439 			dev_err(hwmon->da9052->dev, "invalid TSIREF voltage: %d",  in da9052_hwmon_probe()
440 				hwmon->tsiref_mv);  in da9052_hwmon_probe()
441 			err = -ENXIO;  in da9052_hwmon_probe()
446 		da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_A_REG, 0x00);  in da9052_hwmon_probe()
449 		da9052_reg_update(hwmon->da9052, DA9052_ADC_CONT_REG,  in da9052_hwmon_probe()
453 		err = da9052_request_irq(hwmon->da9052, DA9052_IRQ_TSIREADY,  in da9052_hwmon_probe()
454 					 "tsiready-irq", da9052_tsi_datardy_irq,  in da9052_hwmon_probe()
457 			dev_err(&pdev->dev, "Failed to register TSIRDY IRQ: %d",  in da9052_hwmon_probe()
470 	return 0;  in da9052_hwmon_probe()
473 	if (hwmon->tsi_as_adc)  in da9052_hwmon_probe()
474 		da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon);  in da9052_hwmon_probe()
476 	if (hwmon->tsiref)  in da9052_hwmon_probe()
477 		regulator_disable(hwmon->tsiref);  in da9052_hwmon_probe()
486 	if (hwmon->tsi_as_adc) {  in da9052_hwmon_remove()
487 		da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon);  in da9052_hwmon_remove()
488 		regulator_disable(hwmon->tsiref);  in da9052_hwmon_remove()
491 	return 0;  in da9052_hwmon_remove()
498 		.name = "da9052-hwmon",
507 MODULE_ALIAS("platform:da9052-hwmon");