Merge "defconfig: msm: Enable ADC_TM peripheral driver" (62fcf165) · Commits · e / devices / android_kernel_fairphone_FP4

arch/arm64/configs/vendor/kona-perf_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -313,6 +313,7 @@ CONFIG_THERMAL_GOV_LOW_LIMITS=y
		CONFIG_DEVFREQ_THERMAL=y
		CONFIG_QCOM_SPMI_TEMP_ALARM=y
		CONFIG_THERMAL_TSENS=y
		CONFIG_QTI_ADC_TM=y
		CONFIG_QTI_VIRTUAL_SENSOR=y
		CONFIG_QTI_QMI_SENSOR=y
		CONFIG_QTI_BCL_PMIC5=y

arch/arm64/configs/vendor/kona_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -321,6 +321,7 @@ CONFIG_THERMAL_GOV_LOW_LIMITS=y
		CONFIG_DEVFREQ_THERMAL=y
		CONFIG_QCOM_SPMI_TEMP_ALARM=y
		CONFIG_THERMAL_TSENS=y
		CONFIG_QTI_ADC_TM=y
		CONFIG_QTI_VIRTUAL_SENSOR=y
		CONFIG_QTI_QMI_SENSOR=y
		CONFIG_QTI_BCL_PMIC5=y

drivers/thermal/qcom/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -10,6 +10,16 @@ config QCOM_TSENS
		Also able to set threshold temperature for both hot and cold and update
		when a threshold is reached.

		config QTI_ADC_TM
		tristate "Qualcomm Technologies Inc. Thermal Monitor ADC Driver"
		depends on SPMI && THERMAL
		depends on QCOM_SPMI_ADC5
		help
		This enables the thermal Sysfs driver for the ADC thermal monitoring
		device. It shows up in Sysfs as a thermal zone with multiple trip points.
		Thermal client sets threshold temperature for both warm and cool
		and gets updated when a threshold is reached.

		config QTI_VIRTUAL_SENSOR
		bool "QTI Virtual Sensor driver"
		depends on THERMAL_OF

drivers/thermal/qcom/Makefile

+1 −0

Original line number	Diff line number	Diff line
		obj-$(CONFIG_QCOM_TSENS) += qcom_tsens.o
		qcom_tsens-y += tsens.o tsens-common.o tsens-8916.o tsens-8974.o tsens-8960.o tsens-v2.o
		obj-$(CONFIG_QTI_ADC_TM) += adc-tm.o adc-tm-common.o adc-tm5.o
		obj-$(CONFIG_QTI_VIRTUAL_SENSOR) += qti_virtual_sensor.o
		obj-$(CONFIG_QTI_QMI_SENSOR) += thermal_sensor_service_v01.o qmi_sensors.o
		obj-$(CONFIG_QTI_BCL_PMIC5) += bcl_pmic5.o

drivers/thermal/qcom/adc-tm-common.c

0 → 100644

+142 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
		*/

		#include <linux/module.h>
		#include "adc-tm.h"

		/*
		* Voltage to temperature table for NTCG104EF104 thermistor with
		* 1.875V reference and 100k pull-up.
		*/
		static const struct adc_tm_map_pt adcmap_100k_104ef_104fb_1875_vref[] = {
		{ 1831, -40000 },
		{ 1814, -35000 },
		{ 1791, -30000 },
		{ 1761, -25000 },
		{ 1723, -20000 },
		{ 1675, -15000 },
		{ 1616, -10000 },
		{ 1545, -5000 },
		{ 1463, 0 },
		{ 1370, 5000 },
		{ 1268, 10000 },
		{ 1160, 15000 },
		{ 1049, 20000 },
		{ 937, 25000 },
		{ 828, 30000 },
		{ 726, 35000 },
		{ 630, 40000 },
		{ 544, 45000 },
		{ 467, 50000 },
		{ 399, 55000 },
		{ 340, 60000 },
		{ 290, 65000 },
		{ 247, 70000 },
		{ 209, 75000 },
		{ 179, 80000 },
		{ 153, 85000 },
		{ 130, 90000 },
		{ 112, 95000 },
		{ 96, 100000 },
		{ 82, 105000 },
		{ 71, 110000 },
		{ 62, 115000 },
		{ 53, 120000 },
		{ 46, 125000 },
		};

		static void adc_tm_map_temp_voltage(const struct adc_tm_map_pt *pts,
		size_t tablesize, int input, int64_t *output)
		{
		unsigned int i = 0, descending = 1;

		/* Check if table is descending or ascending */
		if (tablesize > 1) {
		if (pts[0].y < pts[1].y)
		descending = 0;
		}

		while (i < tablesize) {
		if (descending && (pts[i].y < input)) {
		/*
		* Table entry is less than measured value.
		* Table is descending, stop.
		*/
		break;
		} else if (!descending && (pts[i].y > input)) {
		/*
		* Table entry is greater than measured value.
		* Table is ascending, stop.
		*/
		break;
		}
		i++;
		}

		if (i == 0) {
		*output = pts[0].x;
		} else if (i == tablesize) {
		*output = pts[tablesize-1].x;
		} else {
		/*
		* Result is between search_index and search_index-1.
		* Interpolate linearly.
		*/
		output = (((int32_t) ((pts[i].x - pts[i-1].x)
		(input - pts[i-1].y)) /
		(pts[i].y - pts[i-1].y)) +
		pts[i-1].x);
		}
		}

		void adc_tm_scale_therm_voltage_100k(struct adc_tm_config *param,
		const struct adc_tm_data *data)
		{
		uint32_t adc_hc_vdd_ref_mv = 1875;

		/* High temperature maps to lower threshold voltage */
		adc_tm_map_temp_voltage(
		adcmap_100k_104ef_104fb_1875_vref,
		ARRAY_SIZE(adcmap_100k_104ef_104fb_1875_vref),
		param->high_thr_temp, &param->low_thr_voltage);

		param->low_thr_voltage *= data->full_scale_code_volt;
		param->low_thr_voltage = div64_s64(param->low_thr_voltage,
		adc_hc_vdd_ref_mv);

		/* Low temperature maps to higher threshold voltage */
		adc_tm_map_temp_voltage(
		adcmap_100k_104ef_104fb_1875_vref,
		ARRAY_SIZE(adcmap_100k_104ef_104fb_1875_vref),
		param->low_thr_temp, &param->high_thr_voltage);

		param->high_thr_voltage *= data->full_scale_code_volt;
		param->high_thr_voltage = div64_s64(param->high_thr_voltage,
		adc_hc_vdd_ref_mv);

		}
		EXPORT_SYMBOL(adc_tm_scale_therm_voltage_100k);

		int32_t adc_tm_absolute_rthr(const struct adc_tm_data *data,
		struct adc_tm_config *tm_config)
		{
		int64_t low_thr = 0, high_thr = 0;

		low_thr = div_s64(tm_config->low_thr_voltage, tm_config->prescal);
		low_thr *= data->full_scale_code_volt;
		low_thr = div64_s64(low_thr, ADC_HC_VDD_REF);
		tm_config->low_thr_voltage = low_thr;

		high_thr = div_s64(tm_config->high_thr_voltage, tm_config->prescal);
		high_thr *= data->full_scale_code_volt;
		high_thr = div64_s64(high_thr, ADC_HC_VDD_REF);
		tm_config->high_thr_voltage = high_thr;

		return 0;
		}
		EXPORT_SYMBOL(adc_tm_absolute_rthr);

		MODULE_DESCRIPTION("Qualcomm Technologies Inc. PMIC ADC_TM common driver");
		MODULE_LICENSE("GPL v2");