1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * comparator.h -- Comparator Aux ADC for Wolfson WM8350 PMIC 4 * 5 * Copyright 2007 Wolfson Microelectronics PLC 6 */ 7 8#ifndef __LINUX_MFD_WM8350_COMPARATOR_H_ 9#define __LINUX_MFD_WM8350_COMPARATOR_H_ 10 11/* 12 * Registers 13 */ 14 15#define WM8350_DIGITISER_CONTROL_1 0x90 16#define WM8350_DIGITISER_CONTROL_2 0x91 17#define WM8350_AUX1_READBACK 0x98 18#define WM8350_AUX2_READBACK 0x99 19#define WM8350_AUX3_READBACK 0x9A 20#define WM8350_AUX4_READBACK 0x9B 21#define WM8350_CHIP_TEMP_READBACK 0x9F 22#define WM8350_GENERIC_COMPARATOR_CONTROL 0xA3 23#define WM8350_GENERIC_COMPARATOR_1 0xA4 24#define WM8350_GENERIC_COMPARATOR_2 0xA5 25#define WM8350_GENERIC_COMPARATOR_3 0xA6 26#define WM8350_GENERIC_COMPARATOR_4 0xA7 27 28/* 29 * R144 (0x90) - Digitiser Control (1) 30 */ 31#define WM8350_AUXADC_CTC 0x4000 32#define WM8350_AUXADC_POLL 0x2000 33#define WM8350_AUXADC_HIB_MODE 0x1000 34#define WM8350_AUXADC_SEL8 0x0080 35#define WM8350_AUXADC_SEL7 0x0040 36#define WM8350_AUXADC_SEL6 0x0020 37#define WM8350_AUXADC_SEL5 0x0010 38#define WM8350_AUXADC_SEL4 0x0008 39#define WM8350_AUXADC_SEL3 0x0004 40#define WM8350_AUXADC_SEL2 0x0002 41#define WM8350_AUXADC_SEL1 0x0001 42 43/* 44 * R145 (0x91) - Digitiser Control (2) 45 */ 46#define WM8350_AUXADC_MASKMODE_MASK 0x3000 47#define WM8350_AUXADC_CRATE_MASK 0x0700 48#define WM8350_AUXADC_CAL 0x0004 49#define WM8350_AUX_RBMODE 0x0002 50#define WM8350_AUXADC_WAIT 0x0001 51 52/* 53 * R152 (0x98) - AUX1 Readback 54 */ 55#define WM8350_AUXADC_SCALE1_MASK 0x6000 56#define WM8350_AUXADC_REF1 0x1000 57#define WM8350_AUXADC_DATA1_MASK 0x0FFF 58 59/* 60 * R153 (0x99) - AUX2 Readback 61 */ 62#define WM8350_AUXADC_SCALE2_MASK 0x6000 63#define WM8350_AUXADC_REF2 0x1000 64#define WM8350_AUXADC_DATA2_MASK 0x0FFF 65 66/* 67 * R154 (0x9A) - AUX3 Readback 68 */ 69#define WM8350_AUXADC_SCALE3_MASK 0x6000 70#define WM8350_AUXADC_REF3 0x1000 71#define WM8350_AUXADC_DATA3_MASK 0x0FFF 72 73/* 74 * R155 (0x9B) - AUX4 Readback 75 */ 76#define WM8350_AUXADC_SCALE4_MASK 0x6000 77#define WM8350_AUXADC_REF4 0x1000 78#define WM8350_AUXADC_DATA4_MASK 0x0FFF 79 80/* 81 * R156 (0x9C) - USB Voltage Readback 82 */ 83#define WM8350_AUXADC_DATA_USB_MASK 0x0FFF 84 85/* 86 * R157 (0x9D) - LINE Voltage Readback 87 */ 88#define WM8350_AUXADC_DATA_LINE_MASK 0x0FFF 89 90/* 91 * R158 (0x9E) - BATT Voltage Readback 92 */ 93#define WM8350_AUXADC_DATA_BATT_MASK 0x0FFF 94 95/* 96 * R159 (0x9F) - Chip Temp Readback 97 */ 98#define WM8350_AUXADC_DATA_CHIPTEMP_MASK 0x0FFF 99 100/* 101 * R163 (0xA3) - Generic Comparator Control 102 */ 103#define WM8350_DCMP4_ENA 0x0008 104#define WM8350_DCMP3_ENA 0x0004 105#define WM8350_DCMP2_ENA 0x0002 106#define WM8350_DCMP1_ENA 0x0001 107 108/* 109 * R164 (0xA4) - Generic comparator 1 110 */ 111#define WM8350_DCMP1_SRCSEL_MASK 0xE000 112#define WM8350_DCMP1_GT 0x1000 113#define WM8350_DCMP1_THR_MASK 0x0FFF 114 115/* 116 * R165 (0xA5) - Generic comparator 2 117 */ 118#define WM8350_DCMP2_SRCSEL_MASK 0xE000 119#define WM8350_DCMP2_GT 0x1000 120#define WM8350_DCMP2_THR_MASK 0x0FFF 121 122/* 123 * R166 (0xA6) - Generic comparator 3 124 */ 125#define WM8350_DCMP3_SRCSEL_MASK 0xE000 126#define WM8350_DCMP3_GT 0x1000 127#define WM8350_DCMP3_THR_MASK 0x0FFF 128 129/* 130 * R167 (0xA7) - Generic comparator 4 131 */ 132#define WM8350_DCMP4_SRCSEL_MASK 0xE000 133#define WM8350_DCMP4_GT 0x1000 134#define WM8350_DCMP4_THR_MASK 0x0FFF 135 136/* 137 * Interrupts. 138 */ 139#define WM8350_IRQ_AUXADC_DATARDY 16 140#define WM8350_IRQ_AUXADC_DCOMP4 17 141#define WM8350_IRQ_AUXADC_DCOMP3 18 142#define WM8350_IRQ_AUXADC_DCOMP2 19 143#define WM8350_IRQ_AUXADC_DCOMP1 20 144#define WM8350_IRQ_SYS_HYST_COMP_FAIL 21 145#define WM8350_IRQ_SYS_CHIP_GT115 22 146#define WM8350_IRQ_SYS_CHIP_GT140 23 147 148/* 149 * USB/2, LINE & BATT = ((VRTC * 2) / 4095)) * 10e6 uV 150 * Where VRTC = 2.7 V 151 */ 152#define WM8350_AUX_COEFF 1319 153 154#define WM8350_AUXADC_AUX1 0 155#define WM8350_AUXADC_AUX2 1 156#define WM8350_AUXADC_AUX3 2 157#define WM8350_AUXADC_AUX4 3 158#define WM8350_AUXADC_USB 4 159#define WM8350_AUXADC_LINE 5 160#define WM8350_AUXADC_BATT 6 161#define WM8350_AUXADC_TEMP 7 162 163struct wm8350; 164 165/* 166 * AUX ADC Readback 167 */ 168int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, 169 int vref); 170 171#endif 172