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- /*
- * Copyright (C) 2010-2011 NVIDIA, Inc.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
- */
- #include <linux/i2c.h>
- #include <linux/pda_power.h>
- #include <linux/platform_device.h>
- #include <linux/resource.h>
- #include <linux/regulator/machine.h>
- #include <linux/mfd/tps6586x.h>
- #include <linux/gpio.h>
- #include <linux/io.h>
- #include <linux/power/gpio-charger.h>
- #include <mach/iomap.h>
- #include <mach/irqs.h>
- #include <generated/mach-types.h>
- #include "gpio-names.h"
- #include "fuse.h"
- #include "pm.h"
- #include "wakeups-t2.h"
- #include "board.h"
- #include "board-ventana.h"
- #define PMC_CTRL 0x0
- #define PMC_CTRL_INTR_LOW (1 << 17)
- #define CHARGING_DISABLE TEGRA_GPIO_PR6
- int __init ventana_charge_init(void)
- {
- gpio_request(CHARGING_DISABLE, "chg_disable");
- gpio_direction_output(CHARGING_DISABLE, 0);
- tegra_gpio_enable(CHARGING_DISABLE);
- return 0;
- }
- static struct regulator_consumer_supply tps658621_sm0_supply[] = {
- REGULATOR_SUPPLY("vdd_core", NULL),
- };
- static struct regulator_consumer_supply tps658621_sm1_supply[] = {
- REGULATOR_SUPPLY("vdd_cpu", NULL),
- };
- static struct regulator_consumer_supply tps658621_sm2_supply[] = {
- REGULATOR_SUPPLY("vdd_sm2", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo0", NULL),
- REGULATOR_SUPPLY("p_cam_avdd", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo1_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo1", NULL),
- REGULATOR_SUPPLY("avdd_pll", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo2_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo2", NULL),
- REGULATOR_SUPPLY("vdd_rtc", NULL),
- REGULATOR_SUPPLY("vdd_aon", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo3_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo3", NULL),
- REGULATOR_SUPPLY("avdd_usb", NULL),
- REGULATOR_SUPPLY("avdd_usb_pll", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo4_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo4", NULL),
- REGULATOR_SUPPLY("avdd_osc", NULL),
- REGULATOR_SUPPLY("vddio_sys", "panjit_touch"),
- };
- static struct regulator_consumer_supply tps658621_ldo5_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo5", NULL),
- REGULATOR_SUPPLY("vmmc", "sdhci-tegra.3"),
- };
- static struct regulator_consumer_supply tps658621_ldo6_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo6", NULL),
- REGULATOR_SUPPLY("vcsi", "tegra_camera"),
- REGULATOR_SUPPLY("vdd_dmic", "tegra-snd-wm8903"),
- };
- static struct regulator_consumer_supply tps658621_ldo7_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo7", NULL),
- REGULATOR_SUPPLY("avdd_hdmi", NULL),
- REGULATOR_SUPPLY("vdd_fuse", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo8_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo8", NULL),
- REGULATOR_SUPPLY("avdd_hdmi_pll", NULL),
- };
- static struct regulator_consumer_supply tps658621_ldo9_supply[] = {
- REGULATOR_SUPPLY("vdd_ldo9", NULL),
- REGULATOR_SUPPLY("avdd_2v85", NULL),
- REGULATOR_SUPPLY("vdd_ddr_rx", NULL),
- REGULATOR_SUPPLY("vdd_spk_amp", "tegra-snd-wm8903"),
- };
- static struct tps6586x_settings sm0_config = {
- .sm_pwm_mode = PWM_DEFAULT_VALUE,
- .slew_rate = SLEW_RATE_3520UV_PER_SEC,
- };
- static struct tps6586x_settings sm1_config = {
- /*
- * Current TPS6586x is known for having a voltage glitch if current load
- * changes from low to high in auto PWM/PFM mode for CPU's Vdd line.
- */
- .sm_pwm_mode = PWM_ONLY,
- .slew_rate = SLEW_RATE_3520UV_PER_SEC,
- };
- #define REGULATOR_INIT(_id, _minmv, _maxmv, on, config) \
- { \
- .constraints = { \
- .min_uV = (_minmv)*1000, \
- .max_uV = (_maxmv)*1000, \
- .valid_modes_mask = (REGULATOR_MODE_NORMAL | \
- REGULATOR_MODE_STANDBY), \
- .valid_ops_mask = (REGULATOR_CHANGE_MODE | \
- REGULATOR_CHANGE_STATUS | \
- REGULATOR_CHANGE_VOLTAGE), \
- .always_on = on, \
- .apply_uV = 1, \
- }, \
- .num_consumer_supplies = ARRAY_SIZE(tps658621_##_id##_supply),\
- .consumer_supplies = tps658621_##_id##_supply, \
- .driver_data = config, \
- }
- #define ON 1
- #define OFF 0
- static struct regulator_init_data sm0_data = REGULATOR_INIT(sm0, 725, 1500, ON, &sm0_config);
- static struct regulator_init_data sm1_data = REGULATOR_INIT(sm1, 725, 1500, ON, &sm1_config);
- static struct regulator_init_data sm2_data = REGULATOR_INIT(sm2, 3000, 4550, ON, NULL);
- static struct regulator_init_data ldo0_data = REGULATOR_INIT(ldo0, 1250, 3300, OFF, NULL);
- static struct regulator_init_data ldo1_data = REGULATOR_INIT(ldo1, 725, 1500, ON, NULL);
- static struct regulator_init_data ldo2_data = REGULATOR_INIT(ldo2, 725, 1500, OFF, NULL);
- static struct regulator_init_data ldo3_data = REGULATOR_INIT(ldo3, 1250, 3300, OFF, NULL);
- static struct regulator_init_data ldo4_data = REGULATOR_INIT(ldo4, 1700, 2475, ON, NULL);
- static struct regulator_init_data ldo5_data = REGULATOR_INIT(ldo5, 1250, 3300, ON, NULL);
- static struct regulator_init_data ldo6_data = REGULATOR_INIT(ldo6, 1800, 1800, OFF, NULL);
- static struct regulator_init_data ldo7_data = REGULATOR_INIT(ldo7, 1250, 3300, OFF, NULL);
- static struct regulator_init_data ldo8_data = REGULATOR_INIT(ldo8, 1250, 3300, OFF, NULL);
- static struct regulator_init_data ldo9_data = REGULATOR_INIT(ldo9, 1250, 3300, OFF, NULL);
- static struct tps6586x_rtc_platform_data rtc_data = {
- .irq = TEGRA_NR_IRQS + TPS6586X_INT_RTC_ALM1,
- .start = {
- .year = 2009,
- .month = 1,
- .day = 1,
- },
- .cl_sel = TPS6586X_RTC_CL_SEL_1_5PF /* use lowest (external 20pF cap) */
- };
- #define TPS_REG(_id, _data) \
- { \
- .id = TPS6586X_ID_##_id, \
- .name = "tps6586x-regulator", \
- .platform_data = _data, \
- }
- static struct tps6586x_subdev_info tps_devs[] = {
- TPS_REG(SM_0, &sm0_data),
- TPS_REG(SM_1, &sm1_data),
- TPS_REG(SM_2, &sm2_data),
- TPS_REG(LDO_0, &ldo0_data),
- TPS_REG(LDO_1, &ldo1_data),
- TPS_REG(LDO_2, &ldo2_data),
- TPS_REG(LDO_3, &ldo3_data),
- TPS_REG(LDO_4, &ldo4_data),
- TPS_REG(LDO_5, &ldo5_data),
- TPS_REG(LDO_6, &ldo6_data),
- TPS_REG(LDO_7, &ldo7_data),
- TPS_REG(LDO_8, &ldo8_data),
- TPS_REG(LDO_9, &ldo9_data),
- {
- .id = 0,
- .name = "tps6586x-rtc",
- .platform_data = &rtc_data,
- },
- };
- static struct tps6586x_platform_data tps_platform = {
- .irq_base = TPS6586X_INT_BASE,
- .num_subdevs = ARRAY_SIZE(tps_devs),
- .subdevs = tps_devs,
- .gpio_base = TPS6586X_GPIO_BASE,
- };
- static struct i2c_board_info __initdata ventana_regulators[] = {
- {
- I2C_BOARD_INFO("tps6586x", 0x34),
- .irq = INT_EXTERNAL_PMU,
- .platform_data = &tps_platform,
- },
- };
- static void ventana_board_suspend(int lp_state, enum suspend_stage stg)
- {
- if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_SUSPEND_BEFORE_CPU))
- tegra_console_uart_suspend();
- }
- static void ventana_board_resume(int lp_state, enum resume_stage stg)
- {
- if ((lp_state == TEGRA_SUSPEND_LP1) && (stg == TEGRA_RESUME_AFTER_CPU))
- tegra_console_uart_resume();
- }
- static struct tegra_suspend_platform_data ventana_suspend_data = {
- /*
- * Check power on time and crystal oscillator start time
- * for appropriate settings.
- */
- .cpu_timer = 2000,
- .cpu_off_timer = 100,
- .suspend_mode = TEGRA_SUSPEND_LP1,
- .core_timer = 0x7e7e,
- .core_off_timer = 0xf,
- .corereq_high = false,
- .sysclkreq_high = true,
- .board_suspend = ventana_board_suspend,
- .board_resume = ventana_board_resume,
- };
- int __init ventana_regulator_init(void)
- {
- void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
- void __iomem *chip_id = IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804;
- u32 pmc_ctrl;
- u32 minor;
- minor = (readl(chip_id) >> 16) & 0xf;
- /* A03 (but not A03p) chips do not support LP0 */
- if (minor == 3 && !(tegra_spare_fuse(18) || tegra_spare_fuse(19)))
- ventana_suspend_data.suspend_mode = TEGRA_SUSPEND_LP1;
- /* configure the power management controller to trigger PMU
- * interrupts when low */
- pmc_ctrl = readl(pmc + PMC_CTRL);
- writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
- i2c_register_board_info(4, ventana_regulators, 1);
- // regulator_has_full_constraints();
- tegra_init_suspend(&ventana_suspend_data);
- return 0;
- }
- static char *ventana_battery[] = {
- "battery",
- };
- static struct gpio_charger_platform_data ventana_charger_pdata = {
- .name = "ac",
- .type = POWER_SUPPLY_TYPE_MAINS,
- .gpio = AC_PRESENT_GPIO,
- .gpio_active_low = 1,
- .supplied_to = ventana_battery,
- .num_supplicants = ARRAY_SIZE(ventana_battery),
- };
- static struct platform_device ventana_charger_device = {
- .name = "gpio-charger",
- .dev = {
- .platform_data = &ventana_charger_pdata,
- },
- };
- int __init ventana_charger_init(void)
- {
- tegra_gpio_enable(AC_PRESENT_GPIO);
- platform_device_register(&ventana_charger_device);
- return 0;
- }
- static int __init ventana_pcie_init(void)
- {
- int ret;
- if (!machine_is_ventana())
- return 0;
- ret = gpio_request(TPS6586X_GPIO_BASE, "pcie_vdd");
- if (ret < 0)
- goto fail;
- ret = gpio_direction_output(TPS6586X_GPIO_BASE, 1);
- if (ret < 0)
- goto fail;
- gpio_export(TPS6586X_GPIO_BASE, false);
- return 0;
- fail:
- pr_err("%s: gpio_request failed #%d\n", __func__, TPS6586X_GPIO_BASE);
- gpio_free(TPS6586X_GPIO_BASE);
- return ret;
- }
- late_initcall(ventana_pcie_init);
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