iio: adc: spmi-vadc: Add adc support for SPF targets
Update the channel type and scaling function for the VADC channels that are used by legacy SPF targets. Change-Id: I6637388ace022c5726a8f00fb1f8c0eb98c39f5c Signed-off-by: Asha Magadi Venkateshamurthy <amagad@codeaurora.org> Signed-off-by: Archana Sriram <apsrir@codeaurora.org>
This commit is contained in:
Asha Magadi Venkateshamurthy
Shilpa Suresh
parent
a5eb56f58a
commit
a2e940bc10
@ -1,14 +1,6 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* Copyright (c) 2012-2016,2021, The Linux Foundation. All rights reserved.
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*/
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#include <linux/bitops.h>
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@ -560,19 +552,19 @@ static const struct vadc_channels vadc_chans[] = {
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VADC_CHAN_NO_SCALE(SPARE1_03, 1)
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VADC_CHAN_NO_SCALE(USB_ID_MV, 1)
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VADC_CHAN_VOLT(VCOIN, 1, SCALE_DEFAULT)
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VADC_CHAN_NO_SCALE(VBAT_SNS, 1)
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VADC_CHAN_VOLT(VBAT_SNS, 1, SCALE_DEFAULT)
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VADC_CHAN_VOLT(VSYS, 1, SCALE_DEFAULT)
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VADC_CHAN_TEMP(DIE_TEMP, 0, SCALE_PMIC_THERM)
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VADC_CHAN_VOLT(REF_625MV, 0, SCALE_DEFAULT)
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VADC_CHAN_VOLT(REF_1250MV, 0, SCALE_DEFAULT)
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VADC_CHAN_NO_SCALE(CHG_TEMP, 0)
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VADC_CHAN_NO_SCALE(SPARE1, 0)
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VADC_CHAN_VOLT(SPARE1, 0, SCALE_DEFAULT)
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VADC_CHAN_TEMP(SPARE2, 0, SCALE_PMI_CHG_TEMP)
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VADC_CHAN_VOLT(GND_REF, 0, SCALE_DEFAULT)
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VADC_CHAN_VOLT(VDD_VADC, 0, SCALE_DEFAULT)
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VADC_CHAN_NO_SCALE(P_MUX1_1_1, 0)
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VADC_CHAN_NO_SCALE(P_MUX2_1_1, 0)
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VADC_CHAN_TEMP(P_MUX2_1_1, 0, SCALE_THERM_100K_PULLUP)
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VADC_CHAN_NO_SCALE(P_MUX3_1_1, 0)
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VADC_CHAN_NO_SCALE(P_MUX4_1_1, 0)
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VADC_CHAN_NO_SCALE(P_MUX5_1_1, 0)
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@ -606,18 +598,18 @@ static const struct vadc_channels vadc_chans[] = {
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VADC_CHAN_NO_SCALE(P_MUX16_1_3, 1)
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VADC_CHAN_NO_SCALE(LR_MUX1_BAT_THERM, 0)
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VADC_CHAN_NO_SCALE(LR_MUX2_BAT_ID, 0)
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VADC_CHAN_NO_SCALE(LR_MUX3_XO_THERM, 0)
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VADC_CHAN_VOLT(LR_MUX2_BAT_ID, 0, SCALE_DEFAULT)
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VADC_CHAN_TEMP(LR_MUX3_XO_THERM, 0, SCALE_THERM_100K_PULLUP)
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VADC_CHAN_NO_SCALE(LR_MUX4_AMUX_THM1, 0)
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VADC_CHAN_NO_SCALE(LR_MUX5_AMUX_THM2, 0)
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VADC_CHAN_NO_SCALE(LR_MUX6_AMUX_THM3, 0)
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VADC_CHAN_NO_SCALE(LR_MUX7_HW_ID, 0)
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VADC_CHAN_TEMP(LR_MUX7_HW_ID, 0, SCALE_THERM_100K_PULLUP)
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VADC_CHAN_NO_SCALE(LR_MUX8_AMUX_THM4, 0)
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VADC_CHAN_NO_SCALE(LR_MUX9_AMUX_THM5, 0)
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VADC_CHAN_NO_SCALE(LR_MUX10_USB_ID, 0)
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VADC_CHAN_NO_SCALE(AMUX_PU1, 0)
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VADC_CHAN_NO_SCALE(AMUX_PU2, 0)
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VADC_CHAN_NO_SCALE(LR_MUX3_BUF_XO_THERM, 0)
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VADC_CHAN_TEMP(LR_MUX3_BUF_XO_THERM, 0, SCALE_THERM_100K_PULLUP)
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VADC_CHAN_NO_SCALE(LR_MUX1_PU1_BAT_THERM, 0)
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VADC_CHAN_NO_SCALE(LR_MUX2_PU1_BAT_ID, 0)
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@ -759,6 +759,61 @@ static const struct vadc_map_pt adcmap7_100k[] = {
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{ 2420, 130048 }
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};
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/* Voltage to temperature */
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static const struct vadc_map_pt adcmap_batt_therm_qrd_215[] = {
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{1575, -200},
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{1549, -180},
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{1522, -160},
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{1493, -140},
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{1463, -120},
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{1431, -100},
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{1398, -80},
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{1364, -60},
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{1329, -40},
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{1294, -20},
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{1258, 0},
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{1222, 20},
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{1187, 40},
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{1151, 60},
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{1116, 80},
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{1082, 100},
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{1049, 120},
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{1016, 140},
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{985, 160},
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{955, 180},
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{926, 200},
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{899, 220},
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{873, 240},
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{849, 260},
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{825, 280},
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{804, 300},
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{783, 320},
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{764, 340},
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{746, 360},
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{729, 380},
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{714, 400},
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{699, 420},
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{686, 440},
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{673, 460},
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{662, 480},
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{651, 500},
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{641, 520},
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{632, 540},
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{623, 560},
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{615, 580},
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{608, 600},
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{601, 620},
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{595, 640},
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{589, 660},
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{583, 680},
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{578, 700},
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{574, 720},
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{569, 740},
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{565, 760},
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{562, 780},
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{558, 800}
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};
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static int qcom_vadc_map_voltage_temp(const struct vadc_map_pt *pts,
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u32 tablesize, s32 input, s64 *output)
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{
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@ -830,6 +885,10 @@ static int qcom_vadc_scale_volt(const struct vadc_linear_graph *calib_graph,
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voltage = voltage * prescale->den;
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result = div64_s64(voltage, prescale->num);
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if (!absolute)
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result *= 1000;
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*result_uv = result;
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return 0;
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@ -860,6 +919,29 @@ static int qcom_vadc_scale_therm(const struct vadc_linear_graph *calib_graph,
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return 0;
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}
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static int qcom_vadc_scale_therm_qrd_215(
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const struct vadc_linear_graph *calib_graph,
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const struct vadc_prescale_ratio *prescale,
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bool absolute, u16 adc_code,
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int *result_mdec)
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{
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s64 voltage = 0, result = 0;
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int ret;
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qcom_vadc_scale_calib(calib_graph, adc_code, absolute, &voltage);
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ret = qcom_vadc_map_voltage_temp(adcmap_batt_therm_qrd_215,
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ARRAY_SIZE(adcmap_batt_therm_qrd_215),
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voltage, &result);
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if (ret)
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return ret;
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*result_mdec = result;
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return 0;
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}
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static int qcom_vadc_scale_die_temp(const struct vadc_linear_graph *calib_graph,
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const struct vadc_prescale_ratio *prescale,
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bool absolute,
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@ -1307,6 +1389,10 @@ int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
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return qcom_vadc_scale_therm(calib_graph, prescale,
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absolute, adc_code,
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result);
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case SCALE_BATT_THERM_QRD_215:
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return qcom_vadc_scale_therm_qrd_215(calib_graph, prescale,
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absolute, adc_code,
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result);
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case SCALE_PMIC_THERM:
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return qcom_vadc_scale_die_temp(calib_graph, prescale,
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absolute, adc_code,
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@ -198,6 +198,7 @@ enum vadc_scale_fn_type {
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SCALE_HW_CALIB_PM2250_S3_DIE_TEMP,
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SCALE_HW_CALIB_THERM_100K_PU_PM7,
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SCALE_HW_CALIB_PMIC_THERM_PM7,
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SCALE_BATT_THERM_QRD_215,
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SCALE_HW_CALIB_MAX,
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};
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