drivers/hwmon/da9052-hwmon.c

11 #include <linux/hwmon.h>
12 #include <linux/hwmon-sysfs.h>
66 static inline int input_tsireg_to_mv(struct da9052_hwmon *hwmon, int value)
68 	return DIV_ROUND_CLOSEST(value * hwmon->tsiref_mv, 1023);
87 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
90 	mutex_lock(&hwmon->hwmon_lock);
92 	ret = da9052_enable_vddout_channel(hwmon->da9052);
96 	vdd = da9052_reg_read(hwmon->da9052, DA9052_VDD_RES_REG);
102 	ret = da9052_disable_vddout_channel(hwmon->da9052);
106 	mutex_unlock(&hwmon->hwmon_lock);
110 	da9052_disable_vddout_channel(hwmon->da9052);
112 	mutex_unlock(&hwmon->hwmon_lock);
119 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
122 	ret = da9052_reg_read(hwmon->da9052, DA9052_ICHG_AV_REG);
133 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
135 	return sprintf(buf, "%d\n", da9052_adc_read_temp(hwmon->da9052));
141 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
144 	ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBAT);
155 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
159 	ret = da9052_adc_manual_read(hwmon->da9052, channel);
166 static int da9052_request_tsi_read(struct da9052_hwmon *hwmon, int channel)
185 	return da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_B_REG, val);
188 static int da9052_get_tsi_result(struct da9052_hwmon *hwmon, int channel)
194 	err = da9052_group_read(hwmon->da9052, DA9052_TSI_X_MSB_REG,
222 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
225 	reinit_completion(&hwmon->tsidone);
227 	ret = da9052_request_tsi_read(hwmon, channel);
232 	if (!wait_for_completion_timeout(&hwmon->tsidone,
236 	return da9052_get_tsi_result(hwmon, channel);
242 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
246 	mutex_lock(&hwmon->da9052->auxadc_lock);
248 	mutex_unlock(&hwmon->da9052->auxadc_lock);
253 		return sprintf(buf, "%d\n", input_tsireg_to_mv(hwmon, ret));
259 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
263 	tjunc = da9052_reg_read(hwmon->da9052, DA9052_TJUNC_RES_REG);
267 	toffset = da9052_reg_read(hwmon->da9052, DA9052_T_OFFSET_REG);
281 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
284 	ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBBAT);
302 	struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
307 	if (!hwmon->tsi_as_adc) {
388 	struct da9052_hwmon *hwmon = data;
390 	complete(&hwmon->tsidone);
397 	struct da9052_hwmon *hwmon;
401 	hwmon = devm_kzalloc(dev, sizeof(struct da9052_hwmon), GFP_KERNEL);
402 	if (!hwmon)
405 	platform_set_drvdata(pdev, hwmon);
407 	mutex_init(&hwmon->hwmon_lock);
408 	hwmon->da9052 = dev_get_drvdata(pdev->dev.parent);
410 	init_completion(&hwmon->tsidone);
412 	hwmon->tsi_as_adc =
415 	if (hwmon->tsi_as_adc) {
422 		/* convert from microvolt (DT) to millivolt (hwmon) */
423 		hwmon->tsiref_mv = tsiref_uv / 1000;
426 		if (hwmon->tsiref_mv < 1800 || hwmon->tsiref_mv > 2600) {
427 			dev_err(hwmon->da9052->dev, "invalid TSIREF voltage: %d",
428 				hwmon->tsiref_mv);
433 		da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_A_REG, 0x00);
436 		da9052_reg_update(hwmon->da9052, DA9052_ADC_CONT_REG,
440 		err = da9052_request_irq(hwmon->da9052, DA9052_IRQ_TSIREADY,
442 					 hwmon);
451 							   hwmon,
460 	if (hwmon->tsi_as_adc)
461 		da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon);
468 	struct da9052_hwmon *hwmon = platform_get_drvdata(pdev);
470 	if (hwmon->tsi_as_adc)
471 		da9052_free_irq(hwmon->da9052, DA9052_IRQ_TSIREADY, hwmon);
478 		.name = "da9052-hwmon",
487 MODULE_ALIAS("platform:da9052-hwmon");