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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 | // SPDX-License-Identifier: GPL-2.0+ /* * AXP809 driver based on AXP221 driver * * * (C) Copyright 2016 Chen-Yu Tsai <wens@csie.org> * * Based on axp221.c * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl> */ #include <common.h> #include <command.h> #include <errno.h> #include <asm/arch/gpio.h> #include <asm/arch/pmic_bus.h> #include <axp_pmic.h> static u8 axp809_mvolt_to_cfg(int mvolt, int min, int max, int div) { if (mvolt < min) mvolt = min; else if (mvolt > max) mvolt = max; return (mvolt - min) / div; } int axp_set_dcdc1(unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 1600, 3400, 100); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC1_EN); ret = pmic_bus_write(AXP809_DCDC1_CTRL, cfg); if (ret) return ret; ret = pmic_bus_setbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_DC1SW_EN); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC1_EN); } int axp_set_dcdc2(unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC2_EN); ret = pmic_bus_write(AXP809_DCDC2_CTRL, cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC2_EN); } int axp_set_dcdc3(unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1860, 20); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC3_EN); ret = pmic_bus_write(AXP809_DCDC3_CTRL, cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC3_EN); } int axp_set_dcdc4(unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20); if (mvolt >= 1540) cfg = 0x30 + axp809_mvolt_to_cfg(mvolt, 1800, 2600, 100); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC4_EN); ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC4_EN); } int axp_set_dcdc5(unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 1000, 2550, 50); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC5_EN); ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_DCDC5_EN); } int axp_set_aldo(int aldo_num, unsigned int mvolt) { int ret; u8 cfg; if (aldo_num < 1 || aldo_num > 3) return -EINVAL; if (mvolt == 0 && aldo_num == 3) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_ALDO3_EN); if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1)); cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); ret = pmic_bus_write(AXP809_ALDO1_CTRL + (aldo_num - 1), cfg); if (ret) return ret; if (aldo_num == 3) return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_ALDO3_EN); return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1)); } /* TODO: re-work other AXP drivers to consolidate ALDO functions. */ int axp_set_aldo1(unsigned int mvolt) { return axp_set_aldo(1, mvolt); } int axp_set_aldo2(unsigned int mvolt) { return axp_set_aldo(2, mvolt); } int axp_set_aldo3(unsigned int mvolt) { return axp_set_aldo(3, mvolt); } int axp_set_dldo(int dldo_num, unsigned int mvolt) { u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); int ret; if (dldo_num < 1 || dldo_num > 2) return -EINVAL; if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); if (dldo_num == 1 && mvolt > 3300) cfg += 1 + axp809_mvolt_to_cfg(mvolt, 3400, 4200, 200); ret = pmic_bus_write(AXP809_DLDO1_CTRL + (dldo_num - 1), cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); } int axp_set_eldo(int eldo_num, unsigned int mvolt) { int ret; u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); if (eldo_num < 1 || eldo_num > 3) return -EINVAL; if (mvolt == 0) return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); ret = pmic_bus_write(AXP809_ELDO1_CTRL + (eldo_num - 1), cfg); if (ret) return ret; return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); } int axp_set_sw(bool on) { if (on) return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_SWOUT_EN); return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, AXP809_OUTPUT_CTRL2_SWOUT_EN); } int axp_init(void) { return pmic_bus_init(); } int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { pmic_bus_write(AXP809_SHUTDOWN, AXP809_SHUTDOWN_POWEROFF); /* infinite loop during shutdown */ while (1) {} /* not reached */ return 0; } |