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/*
* arch/arm/mach-tegra/board-tn8-power.c
*
* Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/edp.h>
#include <linux/edpdev.h>
#include <mach/edp.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/resource.h>
#include <linux/io.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/power/bq2419x-charger.h>
#include <linux/max17048_battery.h>
#include <linux/tegra-soc.h>
#include <linux/generic_adc_thermal.h>
#include <mach/irqs.h>
#include <asm/mach-types.h>
#include <linux/power/sbs-battery.h>
#include "pm.h"
#include "board.h"
#include "tegra-board-id.h"
#include "board-common.h"
#include "board-ardbeg.h"
#include "board-pmu-defines.h"
#include "devices.h"
#include "common.h"
#include "iomap.h"
#include "tegra-board-id.h"
#include "battery-ini-model-data.h"
#define PMC_CTRL 0x0
#define PMC_CTRL_INTR_LOW (1 << 17)
static u32 tegra_chip_id;
#define IS_T13X (tegra_chip_id == TEGRA_CHIPID_TEGRA13)
struct batt_thermistor_adc_table {
int temp;
int min_volt;
int avg_volt;
int max_volt;
};
/* This table is only for P1761-A00 and P1761-A01*/
/* -40 to 125 degC */
static struct batt_thermistor_adc_table adc_table_default[] = {
{-40, 2315, 2361, 2401}, {-39, 2299, 2345, 2386},
{-38, 2283, 2329, 2369}, {-37, 2266, 2312, 2352},
{-36, 2248, 2294, 2335}, {-35, 2230, 2276, 2316},
{-34, 2211, 2257, 2297}, {-33, 2191, 2237, 2278},
{-32, 2171, 2217, 2258}, {-31, 2150, 2196, 2237},
{-30, 2129, 2175, 2215}, {-29, 2107, 2153, 2193},
{-28, 2085, 2130, 2170}, {-27, 2062, 2107, 2147},
{-26, 2038, 2083, 2123}, {-25, 2014, 2059, 2099},
{-24, 1990, 2034, 2074}, {-23, 1964, 2008, 2048},
{-22, 1939, 1982, 2022}, {-21, 1913, 1956, 1995},
{-20, 1886, 1929, 1968}, {-19, 1860, 1902, 1941},
{-18, 1832, 1874, 1913}, {-17, 1805, 1846, 1884},
{-16, 1777, 1818, 1856}, {-15, 1749, 1789, 1827},
{-14, 1720, 1760, 1797}, {-13, 1692, 1731, 1767},
{-12, 1663, 1701, 1737}, {-11, 1634, 1672, 1707},
{-10, 1604, 1642, 1677}, {-9, 1575, 1612, 1646},
{-8, 1546, 1582, 1616}, {-7, 1516, 1552, 1585},
{-6, 1487, 1522, 1554}, {-5, 1457, 1491, 1524},
{-4, 1428, 1461, 1493}, {-3, 1399, 1431, 1462},
{-2, 1369, 1401, 1432}, {-1, 1340, 1371, 1401},
{0, 1311, 1342, 1371}, {1, 1283, 1312, 1341},
{2, 1254, 1283, 1311}, {3, 1226, 1254, 1281},
{4, 1198, 1225, 1252}, {5, 1170, 1197, 1222},
{6, 1143, 1169, 1193}, {7, 1116, 1141, 1165},
{8, 1089, 1113, 1137}, {9, 1062, 1086, 1109},
{10, 1036, 1059, 1081}, {11, 1011, 1033, 1054},
{12, 986, 1007, 1028}, {13, 961, 982, 1002},
{14, 936, 956, 976}, {15, 912, 932, 951},
{16, 889, 908, 926}, {17, 866, 884, 901},
{18, 843, 861, 877}, {19, 821, 838, 854},
{20, 799, 815, 831}, {21, 778, 793, 809},
{22, 757, 772, 787}, {23, 737, 751, 765},
{24, 717, 731, 744}, {25, 697, 711, 724},
{26, 678, 691, 704}, {27, 659, 672, 685},
{28, 641, 654, 666}, {29, 623, 635, 648},
{30, 605, 618, 630}, {31, 588, 600, 613},
{32, 571, 584, 596}, {33, 555, 567, 579},
{34, 540, 551, 563}, {35, 524, 536, 548},
{36, 509, 521, 532}, {37, 495, 506, 517},
{38, 481, 492, 503}, {39, 467, 478, 489},
{40, 454, 464, 475}, {41, 441, 451, 462},
{42, 428, 439, 449}, {43, 416, 426, 437},
{44, 404, 414, 424}, {45, 392, 402, 413},
{46, 381, 391, 401}, {47, 370, 380, 390},
{48, 360, 369, 379}, {49, 349, 359, 369},
{50, 340, 349, 358}, {51, 330, 339, 348},
{52, 321, 330, 339}, {53, 311, 320, 329},
{54, 303, 311, 320}, {55, 294, 303, 311},
{56, 286, 294, 303}, {57, 278, 286, 295},
{58, 270, 278, 286}, {59, 262, 270, 279},
{60, 255, 263, 271}, {61, 248, 256, 264},
{62, 241, 249, 256}, {63, 234, 242, 249},
{64, 228, 235, 243}, {65, 222, 229, 236},
{66, 215, 223, 230}, {67, 210, 217, 224},
{68, 204, 211, 218}, {69, 198, 205, 212},
{70, 193, 199, 206}, {71, 188, 194, 201},
{72, 183, 189, 195}, {73, 178, 184, 190},
{74, 173, 179, 185}, {75, 168, 174, 180},
{76, 164, 170, 176}, {77, 159, 165, 171},
{78, 155, 161, 167}, {79, 151, 157, 162},
{80, 147, 152, 158}, {81, 143, 149, 154},
{82, 139, 145, 150}, {83, 136, 141, 146},
{84, 132, 137, 143}, {85, 129, 134, 139},
{86, 125, 130, 135}, {87, 122, 127, 132},
{88, 119, 124, 129}, {89, 116, 121, 125},
{90, 113, 118, 122}, {91, 110, 115, 119},
{92, 107, 112, 116}, {93, 105, 109, 113},
{94, 102, 106, 111}, {95, 100, 104, 108},
{96, 97, 101, 105}, {97, 95, 99, 103},
{98, 92, 96, 100}, {99, 90, 94, 98},
{100, 88, 92, 96}, {101, 86, 89, 93},
{102, 84, 87, 91}, {103, 82, 85, 89},
{104, 80, 83, 87}, {105, 78, 81, 85},
{106, 76, 79, 83}, {107, 74, 77, 81},
{108, 72, 75, 79}, {109, 70, 74, 77},
{110, 69, 72, 75}, {111, 67, 70, 74},
{112, 66, 69, 72}, {113, 64, 67, 70},
{114, 63, 65, 69}, {115, 61, 64, 67},
{116, 60, 63, 65}, {117, 58, 61, 64},
{118, 57, 60, 63}, {119, 56, 58, 61},
{120, 54, 57, 60}, {121, 53, 56, 58},
{122, 52, 55, 57}, {123, 51, 53, 56},
{124, 50, 52, 55}, {125, 49, 51, 54},
};
static struct batt_thermistor_adc_table *adc_tbl;
static int adc_tbl_size;
static int tn8_batt_adc_to_temp(struct gadc_thermal_platform_data *pdata,
int val, int val2)
{
int temp, i, f_part = 0;
struct batt_thermistor_adc_table *entry = adc_tbl;
for (i = 0; i < adc_tbl_size; i++) {
if (val >= entry->avg_volt)
break;
entry++;
}
if (i == adc_tbl_size)
temp = pdata->last_index_temp * 10000;
else {
/* Find floating part with interpolate computing */
f_part = ((val - entry->min_volt) * 10)/
(entry->max_volt - entry->min_volt);
temp = entry->temp;
temp = (temp * 10000) + (f_part * 1000);
}
return temp;
}
static struct gadc_thermal_platform_data gadc_thermal_battery_pdata = {
.iio_channel_name = "battery-temp-channel",
.tz_name = "battery-temp",
.temp_offset = 0,
.adc_to_temp = tn8_batt_adc_to_temp,
.first_index_temp = -40,
.last_index_temp = 125,
};
static struct platform_device gadc_thermal_battery = {
.name = "generic-adc-thermal",
.id = 0,
.dev = {
.platform_data = &gadc_thermal_battery_pdata,
},
};
int __init tn8_regulator_init(void)
{
void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
u32 pmc_ctrl;
struct board_info board_info;
tegra_get_board_info(&board_info);
/* TPS65913: Normal state of INT request line is LOW.
* configure the power management controller to trigger PMU
* interrupts when HIGH.
*/
pmc_ctrl = readl(pmc + PMC_CTRL);
writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
if ((board_info.board_id == BOARD_P1761) &&
(board_info.fab < BOARD_FAB_A02)) {
adc_tbl = adc_table_default;
adc_tbl_size = ARRAY_SIZE(adc_table_default);
platform_device_register(&gadc_thermal_battery);
}
return 0;
}
int __init tn8_edp_init(void)
{
unsigned int regulator_mA;
if (!tegra_chip_id)
tegra_chip_id = tegra_get_chip_id();
regulator_mA = get_maximum_cpu_current_supported();
if (!regulator_mA) {
if (IS_T13X)
regulator_mA = 16800;
else
regulator_mA = 12000;
}
pr_info("%s: CPU regulator %d mA\n", __func__, regulator_mA);
tegra_init_cpu_edp_limits(regulator_mA);
/* gpu maximum current */
regulator_mA = 11200;
pr_info("%s: GPU regulator %d mA\n", __func__, regulator_mA);
tegra_init_gpu_edp_limits(regulator_mA);
return 0;
}
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