[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / mfd / da9052-core.c

/*
 * Device access for Dialog DA9052 PMICs.
 *
 * Copyright(c) 2011 Dialog Semiconductor Ltd.
 *
 * Author: David Dajun Chen <dchen@diasemi.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 */

#include <linux/device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/module.h>

#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/pdata.h>
#include <linux/mfd/da9052/reg.h>

static bool da9052_reg_readable(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case DA9052_PAGE0_CON_REG:
	case DA9052_STATUS_A_REG:
	case DA9052_STATUS_B_REG:
	case DA9052_STATUS_C_REG:
	case DA9052_STATUS_D_REG:
	case DA9052_EVENT_A_REG:
	case DA9052_EVENT_B_REG:
	case DA9052_EVENT_C_REG:
	case DA9052_EVENT_D_REG:
	case DA9052_FAULTLOG_REG:
	case DA9052_IRQ_MASK_A_REG:
	case DA9052_IRQ_MASK_B_REG:
	case DA9052_IRQ_MASK_C_REG:
	case DA9052_IRQ_MASK_D_REG:
	case DA9052_CONTROL_A_REG:
	case DA9052_CONTROL_B_REG:
	case DA9052_CONTROL_C_REG:
	case DA9052_CONTROL_D_REG:
	case DA9052_PDDIS_REG:
	case DA9052_INTERFACE_REG:
	case DA9052_RESET_REG:
	case DA9052_GPIO_0_1_REG:
	case DA9052_GPIO_2_3_REG:
	case DA9052_GPIO_4_5_REG:
	case DA9052_GPIO_6_7_REG:
	case DA9052_GPIO_14_15_REG:
	case DA9052_ID_0_1_REG:
	case DA9052_ID_2_3_REG:
	case DA9052_ID_4_5_REG:
	case DA9052_ID_6_7_REG:
	case DA9052_ID_8_9_REG:
	case DA9052_ID_10_11_REG:
	case DA9052_ID_12_13_REG:
	case DA9052_ID_14_15_REG:
	case DA9052_ID_16_17_REG:
	case DA9052_ID_18_19_REG:
	case DA9052_ID_20_21_REG:
	case DA9052_SEQ_STATUS_REG:
	case DA9052_SEQ_A_REG:
	case DA9052_SEQ_B_REG:
	case DA9052_SEQ_TIMER_REG:
	case DA9052_BUCKA_REG:
	case DA9052_BUCKB_REG:
	case DA9052_BUCKCORE_REG:
	case DA9052_BUCKPRO_REG:
	case DA9052_BUCKMEM_REG:
	case DA9052_BUCKPERI_REG:
	case DA9052_LDO1_REG:
	case DA9052_LDO2_REG:
	case DA9052_LDO3_REG:
	case DA9052_LDO4_REG:
	case DA9052_LDO5_REG:
	case DA9052_LDO6_REG:
	case DA9052_LDO7_REG:
	case DA9052_LDO8_REG:
	case DA9052_LDO9_REG:
	case DA9052_LDO10_REG:
	case DA9052_SUPPLY_REG:
	case DA9052_PULLDOWN_REG:
	case DA9052_CHGBUCK_REG:
	case DA9052_WAITCONT_REG:
	case DA9052_ISET_REG:
	case DA9052_BATCHG_REG:
	case DA9052_CHG_CONT_REG:
	case DA9052_INPUT_CONT_REG:
	case DA9052_CHG_TIME_REG:
	case DA9052_BBAT_CONT_REG:
	case DA9052_BOOST_REG:
	case DA9052_LED_CONT_REG:
	case DA9052_LEDMIN123_REG:
	case DA9052_LED1_CONF_REG:
	case DA9052_LED2_CONF_REG:
	case DA9052_LED3_CONF_REG:
	case DA9052_LED1CONT_REG:
	case DA9052_LED2CONT_REG:
	case DA9052_LED3CONT_REG:
	case DA9052_LED_CONT_4_REG:
	case DA9052_LED_CONT_5_REG:
	case DA9052_ADC_MAN_REG:
	case DA9052_ADC_CONT_REG:
	case DA9052_ADC_RES_L_REG:
	case DA9052_ADC_RES_H_REG:
	case DA9052_VDD_RES_REG:
	case DA9052_VDD_MON_REG:
	case DA9052_ICHG_AV_REG:
	case DA9052_ICHG_THD_REG:
	case DA9052_ICHG_END_REG:
	case DA9052_TBAT_RES_REG:
	case DA9052_TBAT_HIGHP_REG:
	case DA9052_TBAT_HIGHN_REG:
	case DA9052_TBAT_LOW_REG:
	case DA9052_T_OFFSET_REG:
	case DA9052_ADCIN4_RES_REG:
	case DA9052_AUTO4_HIGH_REG:
	case DA9052_AUTO4_LOW_REG:
	case DA9052_ADCIN5_RES_REG:
	case DA9052_AUTO5_HIGH_REG:
	case DA9052_AUTO5_LOW_REG:
	case DA9052_ADCIN6_RES_REG:
	case DA9052_AUTO6_HIGH_REG:
	case DA9052_AUTO6_LOW_REG:
	case DA9052_TJUNC_RES_REG:
	case DA9052_TSI_CONT_A_REG:
	case DA9052_TSI_CONT_B_REG:
	case DA9052_TSI_X_MSB_REG:
	case DA9052_TSI_Y_MSB_REG:
	case DA9052_TSI_LSB_REG:
	case DA9052_TSI_Z_MSB_REG:
	case DA9052_COUNT_S_REG:
	case DA9052_COUNT_MI_REG:
	case DA9052_COUNT_H_REG:
	case DA9052_COUNT_D_REG:
	case DA9052_COUNT_MO_REG:
	case DA9052_COUNT_Y_REG:
	case DA9052_ALARM_MI_REG:
	case DA9052_ALARM_H_REG:
	case DA9052_ALARM_D_REG:
	case DA9052_ALARM_MO_REG:
	case DA9052_ALARM_Y_REG:
	case DA9052_SECOND_A_REG:
	case DA9052_SECOND_B_REG:
	case DA9052_SECOND_C_REG:
	case DA9052_SECOND_D_REG:
	case DA9052_PAGE1_CON_REG:
		return true;
	default:
		return false;
	}
}

static bool da9052_reg_writeable(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case DA9052_PAGE0_CON_REG:
	case DA9052_EVENT_A_REG:
	case DA9052_EVENT_B_REG:
	case DA9052_EVENT_C_REG:
	case DA9052_EVENT_D_REG:
	case DA9052_IRQ_MASK_A_REG:
	case DA9052_IRQ_MASK_B_REG:
	case DA9052_IRQ_MASK_C_REG:
	case DA9052_IRQ_MASK_D_REG:
	case DA9052_CONTROL_A_REG:
	case DA9052_CONTROL_B_REG:
	case DA9052_CONTROL_C_REG:
	case DA9052_CONTROL_D_REG:
	case DA9052_PDDIS_REG:
	case DA9052_RESET_REG:
	case DA9052_GPIO_0_1_REG:
	case DA9052_GPIO_2_3_REG:
	case DA9052_GPIO_4_5_REG:
	case DA9052_GPIO_6_7_REG:
	case DA9052_GPIO_14_15_REG:
	case DA9052_ID_0_1_REG:
	case DA9052_ID_2_3_REG:
	case DA9052_ID_4_5_REG:
	case DA9052_ID_6_7_REG:
	case DA9052_ID_8_9_REG:
	case DA9052_ID_10_11_REG:
	case DA9052_ID_12_13_REG:
	case DA9052_ID_14_15_REG:
	case DA9052_ID_16_17_REG:
	case DA9052_ID_18_19_REG:
	case DA9052_ID_20_21_REG:
	case DA9052_SEQ_STATUS_REG:
	case DA9052_SEQ_A_REG:
	case DA9052_SEQ_B_REG:
	case DA9052_SEQ_TIMER_REG:
	case DA9052_BUCKA_REG:
	case DA9052_BUCKB_REG:
	case DA9052_BUCKCORE_REG:
	case DA9052_BUCKPRO_REG:
	case DA9052_BUCKMEM_REG:
	case DA9052_BUCKPERI_REG:
	case DA9052_LDO1_REG:
	case DA9052_LDO2_REG:
	case DA9052_LDO3_REG:
	case DA9052_LDO4_REG:
	case DA9052_LDO5_REG:
	case DA9052_LDO6_REG:
	case DA9052_LDO7_REG:
	case DA9052_LDO8_REG:
	case DA9052_LDO9_REG:
	case DA9052_LDO10_REG:
	case DA9052_SUPPLY_REG:
	case DA9052_PULLDOWN_REG:
	case DA9052_CHGBUCK_REG:
	case DA9052_WAITCONT_REG:
	case DA9052_ISET_REG:
	case DA9052_BATCHG_REG:
	case DA9052_CHG_CONT_REG:
	case DA9052_INPUT_CONT_REG:
	case DA9052_BBAT_CONT_REG:
	case DA9052_BOOST_REG:
	case DA9052_LED_CONT_REG:
	case DA9052_LEDMIN123_REG:
	case DA9052_LED1_CONF_REG:
	case DA9052_LED2_CONF_REG:
	case DA9052_LED3_CONF_REG:
	case DA9052_LED1CONT_REG:
	case DA9052_LED2CONT_REG:
	case DA9052_LED3CONT_REG:
	case DA9052_LED_CONT_4_REG:
	case DA9052_LED_CONT_5_REG:
	case DA9052_ADC_MAN_REG:
	case DA9052_ADC_CONT_REG:
	case DA9052_ADC_RES_L_REG:
	case DA9052_ADC_RES_H_REG:
	case DA9052_VDD_RES_REG:
	case DA9052_VDD_MON_REG:
	case DA9052_ICHG_THD_REG:
	case DA9052_ICHG_END_REG:
	case DA9052_TBAT_HIGHP_REG:
	case DA9052_TBAT_HIGHN_REG:
	case DA9052_TBAT_LOW_REG:
	case DA9052_T_OFFSET_REG:
	case DA9052_AUTO4_HIGH_REG:
	case DA9052_AUTO4_LOW_REG:
	case DA9052_AUTO5_HIGH_REG:
	case DA9052_AUTO5_LOW_REG:
	case DA9052_AUTO6_HIGH_REG:
	case DA9052_AUTO6_LOW_REG:
	case DA9052_TSI_CONT_A_REG:
	case DA9052_TSI_CONT_B_REG:
	case DA9052_COUNT_S_REG:
	case DA9052_COUNT_MI_REG:
	case DA9052_COUNT_H_REG:
	case DA9052_COUNT_D_REG:
	case DA9052_COUNT_MO_REG:
	case DA9052_COUNT_Y_REG:
	case DA9052_ALARM_MI_REG:
	case DA9052_ALARM_H_REG:
	case DA9052_ALARM_D_REG:
	case DA9052_ALARM_MO_REG:
	case DA9052_ALARM_Y_REG:
	case DA9052_PAGE1_CON_REG:
		return true;
	default:
		return false;
	}
}

static bool da9052_reg_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case DA9052_STATUS_A_REG:
	case DA9052_STATUS_B_REG:
	case DA9052_STATUS_C_REG:
	case DA9052_STATUS_D_REG:
	case DA9052_EVENT_A_REG:
	case DA9052_EVENT_B_REG:
	case DA9052_EVENT_C_REG:
	case DA9052_EVENT_D_REG:
	case DA9052_FAULTLOG_REG:
	case DA9052_CHG_TIME_REG:
	case DA9052_ADC_RES_L_REG:
	case DA9052_ADC_RES_H_REG:
	case DA9052_VDD_RES_REG:
	case DA9052_ICHG_AV_REG:
	case DA9052_TBAT_RES_REG:
	case DA9052_ADCIN4_RES_REG:
	case DA9052_ADCIN5_RES_REG:
	case DA9052_ADCIN6_RES_REG:
	case DA9052_TJUNC_RES_REG:
	case DA9052_TSI_X_MSB_REG:
	case DA9052_TSI_Y_MSB_REG:
	case DA9052_TSI_LSB_REG:
	case DA9052_TSI_Z_MSB_REG:
	case DA9052_COUNT_S_REG:
	case DA9052_COUNT_MI_REG:
	case DA9052_COUNT_H_REG:
	case DA9052_COUNT_D_REG:
	case DA9052_COUNT_MO_REG:
	case DA9052_COUNT_Y_REG:
	case DA9052_ALARM_MI_REG:
		return true;
	default:
		return false;
	}
}

/*
 * TBAT look-up table is computed from the R90 reg (8 bit register)
 * reading as below. The battery temperature is in milliCentigrade
 * TBAT = (1/(t1+1/298) - 273) * 1000 mC
 * where t1 = (1/B)* ln(( ADCval * 2.5)/(R25*ITBAT*255))
 * Default values are R25 = 10e3, B = 3380, ITBAT = 50e-6
 * Example:
 * R25=10E3, B=3380, ITBAT=50e-6, ADCVAL=62d calculates
 * TBAT = 20015 mili degrees Centrigrade
 *
*/
static const int32_t tbat_lookup[255] = {
	183258, 144221, 124334, 111336, 101826, 94397, 88343, 83257,
	78889, 75071, 71688, 68656, 65914, 63414, 61120, 59001,
	570366, 55204, 53490, 51881, 50364, 48931, 47574, 46285,
	45059, 43889, 42772, 41703, 40678, 39694, 38748, 37838,
	36961, 36115, 35297, 34507, 33743, 33002, 32284, 31588,
	30911, 30254, 29615, 28994, 28389, 27799, 27225, 26664,
	26117, 25584, 25062, 24553, 24054, 23567, 23091, 22624,
	22167, 21719, 21281, 20851, 20429, 20015, 19610, 19211,
	18820, 18436, 18058, 17688, 17323, 16965, 16612, 16266,
	15925, 15589, 15259, 14933, 14613, 14298, 13987, 13681,
	13379, 13082, 12788, 12499, 12214, 11933, 11655, 11382,
	11112, 10845, 10582, 10322, 10066, 9812, 9562, 9315,
	9071, 8830, 8591, 8356, 8123, 7893, 7665, 7440,
	7218, 6998, 6780, 6565, 6352, 6141, 5933, 5726,
	5522, 5320, 5120, 4922, 4726, 4532, 4340, 4149,
	3961, 3774, 3589, 3406, 3225, 3045, 2867, 2690,
	2516, 2342, 2170, 2000, 1831, 1664, 1498, 1334,
	1171, 1009, 849, 690, 532, 376, 221, 67,
	-84, -236, -386, -535, -683, -830, -975, -1119,
	-1263, -1405, -1546, -1686, -1825, -1964, -2101, -2237,
	-2372, -2506, -2639, -2771, -2902, -3033, -3162, -3291,
	-3418, -3545, -3671, -3796, -3920, -4044, -4166, -4288,
	-4409, -4529, -4649, -4767, -4885, -5002, -5119, -5235,
	-5349, -5464, -5577, -5690, -5802, -5913, -6024, -6134,
	-6244, -6352, -6461, -6568, -6675, -6781, -6887, -6992,
	-7096, -7200, -7303, -7406, -7508, -7609, -7710, -7810,
	-7910, -8009, -8108, -8206, -8304, -8401, -8497, -8593,
	-8689, -8784, -8878, -8972, -9066, -9159, -9251, -9343,
	-9435, -9526, -9617, -9707, -9796, -9886, -9975, -10063,
	-10151, -10238, -10325, -10412, -10839, -10923, -11007, -11090,
	-11173, -11256, -11338, -11420, -11501, -11583, -11663, -11744,
	-11823, -11903, -11982
};

static const u8 chan_mux[DA9052_ADC_VBBAT + 1] = {
	[DA9052_ADC_VDDOUT]	= DA9052_ADC_MAN_MUXSEL_VDDOUT,
	[DA9052_ADC_ICH]	= DA9052_ADC_MAN_MUXSEL_ICH,
	[DA9052_ADC_TBAT]	= DA9052_ADC_MAN_MUXSEL_TBAT,
	[DA9052_ADC_VBAT]	= DA9052_ADC_MAN_MUXSEL_VBAT,
	[DA9052_ADC_IN4]	= DA9052_ADC_MAN_MUXSEL_AD4,
	[DA9052_ADC_IN5]	= DA9052_ADC_MAN_MUXSEL_AD5,
	[DA9052_ADC_IN6]	= DA9052_ADC_MAN_MUXSEL_AD6,
	[DA9052_ADC_VBBAT]	= DA9052_ADC_MAN_MUXSEL_VBBAT
};

int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel)
{
	int ret;
	unsigned short calc_data;
	unsigned short data;
	unsigned char mux_sel;

	if (channel > DA9052_ADC_VBBAT)
		return -EINVAL;

	mutex_lock(&da9052->auxadc_lock);

	/* Channel gets activated on enabling the Conversion bit */
	mux_sel = chan_mux[channel] | DA9052_ADC_MAN_MAN_CONV;

	ret = da9052_reg_write(da9052, DA9052_ADC_MAN_REG, mux_sel);
	if (ret < 0)
		goto err;

	/* Wait for an interrupt */
	if (!wait_for_completion_timeout(&da9052->done,
					 msecs_to_jiffies(500))) {
		dev_err(da9052->dev,
			"timeout waiting for ADC conversion interrupt\n");
		ret = -ETIMEDOUT;
		goto err;
	}

	ret = da9052_reg_read(da9052, DA9052_ADC_RES_H_REG);
	if (ret < 0)
		goto err;

	calc_data = (unsigned short)ret;
	data = calc_data << 2;

	ret = da9052_reg_read(da9052, DA9052_ADC_RES_L_REG);
	if (ret < 0)
		goto err;

	calc_data = (unsigned short)(ret & DA9052_ADC_RES_LSB);
	data |= calc_data;

	ret = data;

err:
	mutex_unlock(&da9052->auxadc_lock);
	return ret;
}
EXPORT_SYMBOL_GPL(da9052_adc_manual_read);

int da9052_adc_read_temp(struct da9052 *da9052)
{
	int tbat;

	tbat = da9052_reg_read(da9052, DA9052_TBAT_RES_REG);
	if (tbat <= 0)
		return tbat;

	/* ARRAY_SIZE check is not needed since TBAT is a 8-bit register */
	return tbat_lookup[tbat - 1];
}
EXPORT_SYMBOL_GPL(da9052_adc_read_temp);

static struct mfd_cell da9052_subdev_info[] = {
	{
		.name = "da9052-regulator",
		.id = 1,
	},
	{
		.name = "da9052-regulator",
		.id = 2,
	},
	{
		.name = "da9052-regulator",
		.id = 3,
	},
	{
		.name = "da9052-regulator",
		.id = 4,
	},
	{
		.name = "da9052-regulator",
		.id = 5,
	},
	{
		.name = "da9052-regulator",
		.id = 6,
	},
	{
		.name = "da9052-regulator",
		.id = 7,
	},
	{
		.name = "da9052-regulator",
		.id = 8,
	},
	{
		.name = "da9052-regulator",
		.id = 9,
	},
	{
		.name = "da9052-regulator",
		.id = 10,
	},
	{
		.name = "da9052-regulator",
		.id = 11,
	},
	{
		.name = "da9052-regulator",
		.id = 12,
	},
	{
		.name = "da9052-regulator",
		.id = 13,
	},
	{
		.name = "da9052-regulator",
		.id = 14,
	},
	{
		.name = "da9052-onkey",
	},
	{
		.name = "da9052-rtc",
	},
	{
		.name = "da9052-gpio",
	},
	{
		.name = "da9052-hwmon",
	},
	{
		.name = "da9052-leds",
	},
	{
		.name = "da9052-wled1",
	},
	{
		.name = "da9052-wled2",
	},
	{
		.name = "da9052-wled3",
	},
	{
		.name = "da9052-tsi",
	},
	{
		.name = "da9052-bat",
	},
	{
		.name = "da9052-watchdog",
	},
};

struct regmap_config da9052_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.cache_type = REGCACHE_RBTREE,

	.max_register = DA9052_PAGE1_CON_REG,
	.readable_reg = da9052_reg_readable,
	.writeable_reg = da9052_reg_writeable,
	.volatile_reg = da9052_reg_volatile,
};
EXPORT_SYMBOL_GPL(da9052_regmap_config);

int da9052_device_init(struct da9052 *da9052, u8 chip_id)
{
	struct da9052_pdata *pdata = da9052->dev->platform_data;
	int ret;

	mutex_init(&da9052->auxadc_lock);
	init_completion(&da9052->done);

	if (pdata && pdata->init != NULL)
		pdata->init(da9052);

	da9052->chip_id = chip_id;

	ret = da9052_irq_init(da9052);
	if (ret != 0) {
		dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret);
		return ret;
	}

	ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
			      ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
	if (ret) {
		dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret);
		goto err;
	}

	return 0;

err:
	da9052_irq_exit(da9052);

	return ret;
}

void da9052_device_exit(struct da9052 *da9052)
{
	mfd_remove_devices(da9052->dev);
	da9052_irq_exit(da9052);
}

MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
MODULE_DESCRIPTION("DA9052 MFD Core");
MODULE_LICENSE("GPL");
Commit	Line	Data
84c99db8 AJ	1	/*
	2	* Device access for Dialog DA9052 PMICs.
	3	*
	4	* Copyright(c) 2011 Dialog Semiconductor Ltd.
	5	*
	6	* Author: David Dajun Chen <dchen@diasemi.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*/
	13
	14	#include <linux/device.h>
	15	#include <linux/delay.h>
	16	#include <linux/input.h>
	17	#include <linux/interrupt.h>
84c99db8 AJ	18	#include <linux/mfd/core.h>
	19	#include <linux/slab.h>
	20	#include <linux/module.h>
	21
	22	#include <linux/mfd/da9052/da9052.h>
	23	#include <linux/mfd/da9052/pdata.h>
	24	#include <linux/mfd/da9052/reg.h>
	25
84c99db8 AJ	26	static bool da9052_reg_readable(struct device *dev, unsigned int reg)
	27	{
	28	switch (reg) {
	29	case DA9052_PAGE0_CON_REG:
	30	case DA9052_STATUS_A_REG:
	31	case DA9052_STATUS_B_REG:
	32	case DA9052_STATUS_C_REG:
	33	case DA9052_STATUS_D_REG:
	34	case DA9052_EVENT_A_REG:
	35	case DA9052_EVENT_B_REG:
	36	case DA9052_EVENT_C_REG:
	37	case DA9052_EVENT_D_REG:
	38	case DA9052_FAULTLOG_REG:
	39	case DA9052_IRQ_MASK_A_REG:
	40	case DA9052_IRQ_MASK_B_REG:
	41	case DA9052_IRQ_MASK_C_REG:
	42	case DA9052_IRQ_MASK_D_REG:
	43	case DA9052_CONTROL_A_REG:
	44	case DA9052_CONTROL_B_REG:
	45	case DA9052_CONTROL_C_REG:
	46	case DA9052_CONTROL_D_REG:
	47	case DA9052_PDDIS_REG:
	48	case DA9052_INTERFACE_REG:
	49	case DA9052_RESET_REG:
	50	case DA9052_GPIO_0_1_REG:
	51	case DA9052_GPIO_2_3_REG:
	52	case DA9052_GPIO_4_5_REG:
	53	case DA9052_GPIO_6_7_REG:
	54	case DA9052_GPIO_14_15_REG:
	55	case DA9052_ID_0_1_REG:
	56	case DA9052_ID_2_3_REG:
	57	case DA9052_ID_4_5_REG:
	58	case DA9052_ID_6_7_REG:
	59	case DA9052_ID_8_9_REG:
	60	case DA9052_ID_10_11_REG:
	61	case DA9052_ID_12_13_REG:
	62	case DA9052_ID_14_15_REG:
	63	case DA9052_ID_16_17_REG:
	64	case DA9052_ID_18_19_REG:
	65	case DA9052_ID_20_21_REG:
	66	case DA9052_SEQ_STATUS_REG:
	67	case DA9052_SEQ_A_REG:
	68	case DA9052_SEQ_B_REG:
	69	case DA9052_SEQ_TIMER_REG:
	70	case DA9052_BUCKA_REG:
	71	case DA9052_BUCKB_REG:
	72	case DA9052_BUCKCORE_REG:
	73	case DA9052_BUCKPRO_REG:
	74	case DA9052_BUCKMEM_REG:
	75	case DA9052_BUCKPERI_REG:
	76	case DA9052_LDO1_REG:
	77	case DA9052_LDO2_REG:
	78	case DA9052_LDO3_REG:
	79	case DA9052_LDO4_REG:
	80	case DA9052_LDO5_REG:
	81	case DA9052_LDO6_REG:
	82	case DA9052_LDO7_REG:
	83	case DA9052_LDO8_REG:
	84	case DA9052_LDO9_REG:
	85	case DA9052_LDO10_REG:
	86	case DA9052_SUPPLY_REG:
	87	case DA9052_PULLDOWN_REG:
	88	case DA9052_CHGBUCK_REG:
	89	case DA9052_WAITCONT_REG:
90	case DA9052_ISET_REG:
91	case DA9052_BATCHG_REG:
92	case DA9052_CHG_CONT_REG:
93	case DA9052_INPUT_CONT_REG:
94	case DA9052_CHG_TIME_REG:
95	case DA9052_BBAT_CONT_REG:
96	case DA9052_BOOST_REG:
97	case DA9052_LED_CONT_REG:
98	case DA9052_LEDMIN123_REG:
99	case DA9052_LED1_CONF_REG:
100	case DA9052_LED2_CONF_REG:
101	case DA9052_LED3_CONF_REG:
102	case DA9052_LED1CONT_REG:
103	case DA9052_LED2CONT_REG:
104	case DA9052_LED3CONT_REG:
105	case DA9052_LED_CONT_4_REG:
106	case DA9052_LED_CONT_5_REG:
107	case DA9052_ADC_MAN_REG:
108	case DA9052_ADC_CONT_REG:
109	case DA9052_ADC_RES_L_REG:
110	case DA9052_ADC_RES_H_REG:
111	case DA9052_VDD_RES_REG:
112	case DA9052_VDD_MON_REG:
113	case DA9052_ICHG_AV_REG:
114	case DA9052_ICHG_THD_REG:
115	case DA9052_ICHG_END_REG:
116	case DA9052_TBAT_RES_REG:
117	case DA9052_TBAT_HIGHP_REG:
118	case DA9052_TBAT_HIGHN_REG:
119	case DA9052_TBAT_LOW_REG:
120	case DA9052_T_OFFSET_REG:
121	case DA9052_ADCIN4_RES_REG:
122	case DA9052_AUTO4_HIGH_REG:
123	case DA9052_AUTO4_LOW_REG:
124	case DA9052_ADCIN5_RES_REG:
125	case DA9052_AUTO5_HIGH_REG:
126	case DA9052_AUTO5_LOW_REG:
127	case DA9052_ADCIN6_RES_REG:
128	case DA9052_AUTO6_HIGH_REG:
129	case DA9052_AUTO6_LOW_REG:
130	case DA9052_TJUNC_RES_REG:
131	case DA9052_TSI_CONT_A_REG:
132	case DA9052_TSI_CONT_B_REG:
133	case DA9052_TSI_X_MSB_REG:
134	case DA9052_TSI_Y_MSB_REG:
135	case DA9052_TSI_LSB_REG:
136	case DA9052_TSI_Z_MSB_REG:
137	case DA9052_COUNT_S_REG:
138	case DA9052_COUNT_MI_REG:
139	case DA9052_COUNT_H_REG:
140	case DA9052_COUNT_D_REG:
141	case DA9052_COUNT_MO_REG:
142	case DA9052_COUNT_Y_REG:
143	case DA9052_ALARM_MI_REG:
144	case DA9052_ALARM_H_REG:
145	case DA9052_ALARM_D_REG:
146	case DA9052_ALARM_MO_REG:
147	case DA9052_ALARM_Y_REG:
148	case DA9052_SECOND_A_REG:
149	case DA9052_SECOND_B_REG:
150	case DA9052_SECOND_C_REG:
151	case DA9052_SECOND_D_REG:
152	case DA9052_PAGE1_CON_REG:
153	return true;
154	default:
155	return false;
156	}
157	}
158
159	static bool da9052_reg_writeable(struct device *dev, unsigned int reg)
160	{
161	switch (reg) {
162	case DA9052_PAGE0_CON_REG:
0a92815d AJ	163	case DA9052_EVENT_A_REG:
	164	case DA9052_EVENT_B_REG:
	165	case DA9052_EVENT_C_REG:
	166	case DA9052_EVENT_D_REG:
84c99db8 AJ	167	case DA9052_IRQ_MASK_A_REG:
	168	case DA9052_IRQ_MASK_B_REG:
	169	case DA9052_IRQ_MASK_C_REG:
	170	case DA9052_IRQ_MASK_D_REG:
	171	case DA9052_CONTROL_A_REG:
	172	case DA9052_CONTROL_B_REG:
	173	case DA9052_CONTROL_C_REG:
	174	case DA9052_CONTROL_D_REG:
	175	case DA9052_PDDIS_REG:
	176	case DA9052_RESET_REG:
	177	case DA9052_GPIO_0_1_REG:
	178	case DA9052_GPIO_2_3_REG:
	179	case DA9052_GPIO_4_5_REG:
	180	case DA9052_GPIO_6_7_REG:
	181	case DA9052_GPIO_14_15_REG:
	182	case DA9052_ID_0_1_REG:
	183	case DA9052_ID_2_3_REG:
	184	case DA9052_ID_4_5_REG:
	185	case DA9052_ID_6_7_REG:
	186	case DA9052_ID_8_9_REG:
	187	case DA9052_ID_10_11_REG:
	188	case DA9052_ID_12_13_REG:
	189	case DA9052_ID_14_15_REG:
	190	case DA9052_ID_16_17_REG:
	191	case DA9052_ID_18_19_REG:
	192	case DA9052_ID_20_21_REG:
	193	case DA9052_SEQ_STATUS_REG:
	194	case DA9052_SEQ_A_REG:
	195	case DA9052_SEQ_B_REG:
	196	case DA9052_SEQ_TIMER_REG:
	197	case DA9052_BUCKA_REG:
	198	case DA9052_BUCKB_REG:
	199	case DA9052_BUCKCORE_REG:
	200	case DA9052_BUCKPRO_REG:
	201	case DA9052_BUCKMEM_REG:
	202	case DA9052_BUCKPERI_REG:
	203	case DA9052_LDO1_REG:
	204	case DA9052_LDO2_REG:
	205	case DA9052_LDO3_REG:
	206	case DA9052_LDO4_REG:
	207	case DA9052_LDO5_REG:
	208	case DA9052_LDO6_REG:
	209	case DA9052_LDO7_REG:
	210	case DA9052_LDO8_REG:
	211	case DA9052_LDO9_REG:
	212	case DA9052_LDO10_REG:
	213	case DA9052_SUPPLY_REG:
	214	case DA9052_PULLDOWN_REG:
	215	case DA9052_CHGBUCK_REG:
	216	case DA9052_WAITCONT_REG:
	217	case DA9052_ISET_REG:
	218	case DA9052_BATCHG_REG:
	219	case DA9052_CHG_CONT_REG:
	220	case DA9052_INPUT_CONT_REG:
	221	case DA9052_BBAT_CONT_REG:
	222	case DA9052_BOOST_REG:
	223	case DA9052_LED_CONT_REG:
	224	case DA9052_LEDMIN123_REG:
	225	case DA9052_LED1_CONF_REG:
	226	case DA9052_LED2_CONF_REG:
	227	case DA9052_LED3_CONF_REG:
	228	case DA9052_LED1CONT_REG:
	229	case DA9052_LED2CONT_REG:
	230	case DA9052_LED3CONT_REG:
231	case DA9052_LED_CONT_4_REG:
232	case DA9052_LED_CONT_5_REG:
233	case DA9052_ADC_MAN_REG:
234	case DA9052_ADC_CONT_REG:
235	case DA9052_ADC_RES_L_REG:
236	case DA9052_ADC_RES_H_REG:
237	case DA9052_VDD_RES_REG:
238	case DA9052_VDD_MON_REG:
239	case DA9052_ICHG_THD_REG:
240	case DA9052_ICHG_END_REG:
241	case DA9052_TBAT_HIGHP_REG:
242	case DA9052_TBAT_HIGHN_REG:
243	case DA9052_TBAT_LOW_REG:
244	case DA9052_T_OFFSET_REG:
245	case DA9052_AUTO4_HIGH_REG:
246	case DA9052_AUTO4_LOW_REG:
247	case DA9052_AUTO5_HIGH_REG:
248	case DA9052_AUTO5_LOW_REG:
249	case DA9052_AUTO6_HIGH_REG:
250	case DA9052_AUTO6_LOW_REG:
251	case DA9052_TSI_CONT_A_REG:
252	case DA9052_TSI_CONT_B_REG:
253	case DA9052_COUNT_S_REG:
254	case DA9052_COUNT_MI_REG:
255	case DA9052_COUNT_H_REG:
256	case DA9052_COUNT_D_REG:
257	case DA9052_COUNT_MO_REG:
258	case DA9052_COUNT_Y_REG:
259	case DA9052_ALARM_MI_REG:
260	case DA9052_ALARM_H_REG:
261	case DA9052_ALARM_D_REG:
262	case DA9052_ALARM_MO_REG:
263	case DA9052_ALARM_Y_REG:
264	case DA9052_PAGE1_CON_REG:
265	return true;
266	default:
267	return false;
268	}
269	}
270
271	static bool da9052_reg_volatile(struct device *dev, unsigned int reg)
272	{
273	switch (reg) {
274	case DA9052_STATUS_A_REG:
275	case DA9052_STATUS_B_REG:
276	case DA9052_STATUS_C_REG:
277	case DA9052_STATUS_D_REG:
278	case DA9052_EVENT_A_REG:
279	case DA9052_EVENT_B_REG:
280	case DA9052_EVENT_C_REG:
281	case DA9052_EVENT_D_REG:
282	case DA9052_FAULTLOG_REG:
283	case DA9052_CHG_TIME_REG:
284	case DA9052_ADC_RES_L_REG:
285	case DA9052_ADC_RES_H_REG:
286	case DA9052_VDD_RES_REG:
287	case DA9052_ICHG_AV_REG:
288	case DA9052_TBAT_RES_REG:
289	case DA9052_ADCIN4_RES_REG:
290	case DA9052_ADCIN5_RES_REG:
291	case DA9052_ADCIN6_RES_REG:
292	case DA9052_TJUNC_RES_REG:
293	case DA9052_TSI_X_MSB_REG:
294	case DA9052_TSI_Y_MSB_REG:
295	case DA9052_TSI_LSB_REG:
296	case DA9052_TSI_Z_MSB_REG:
297	case DA9052_COUNT_S_REG:
298	case DA9052_COUNT_MI_REG:
299	case DA9052_COUNT_H_REG:
300	case DA9052_COUNT_D_REG:
301	case DA9052_COUNT_MO_REG:
302	case DA9052_COUNT_Y_REG:
303	case DA9052_ALARM_MI_REG:
304	return true;
305	default:
306	return false;
307	}
308	}
309
16e5e204 AJ	310	/*
	311	* TBAT look-up table is computed from the R90 reg (8 bit register)
	312	* reading as below. The battery temperature is in milliCentigrade
	313	* TBAT = (1/(t1+1/298) - 273) * 1000 mC
	314	* where t1 = (1/B)* ln(( ADCval * 2.5)/(R25ITBAT255))
	315	* Default values are R25 = 10e3, B = 3380, ITBAT = 50e-6
	316	* Example:
	317	* R25=10E3, B=3380, ITBAT=50e-6, ADCVAL=62d calculates
	318	* TBAT = 20015 mili degrees Centrigrade
	319	*
	320	*/
	321	static const int32_t tbat_lookup[255] = {
	322	183258, 144221, 124334, 111336, 101826, 94397, 88343, 83257,
	323	78889, 75071, 71688, 68656, 65914, 63414, 61120, 59001,
	324	570366, 55204, 53490, 51881, 50364, 48931, 47574, 46285,
	325	45059, 43889, 42772, 41703, 40678, 39694, 38748, 37838,
	326	36961, 36115, 35297, 34507, 33743, 33002, 32284, 31588,
	327	30911, 30254, 29615, 28994, 28389, 27799, 27225, 26664,
	328	26117, 25584, 25062, 24553, 24054, 23567, 23091, 22624,
	329	22167, 21719, 21281, 20851, 20429, 20015, 19610, 19211,
	330	18820, 18436, 18058, 17688, 17323, 16965, 16612, 16266,
	331	15925, 15589, 15259, 14933, 14613, 14298, 13987, 13681,
	332	13379, 13082, 12788, 12499, 12214, 11933, 11655, 11382,
	333	11112, 10845, 10582, 10322, 10066, 9812, 9562, 9315,
	334	9071, 8830, 8591, 8356, 8123, 7893, 7665, 7440,
	335	7218, 6998, 6780, 6565, 6352, 6141, 5933, 5726,
	336	5522, 5320, 5120, 4922, 4726, 4532, 4340, 4149,
	337	3961, 3774, 3589, 3406, 3225, 3045, 2867, 2690,
	338	2516, 2342, 2170, 2000, 1831, 1664, 1498, 1334,
	339	1171, 1009, 849, 690, 532, 376, 221, 67,
	340	-84, -236, -386, -535, -683, -830, -975, -1119,
	341	-1263, -1405, -1546, -1686, -1825, -1964, -2101, -2237,
	342	-2372, -2506, -2639, -2771, -2902, -3033, -3162, -3291,
	343	-3418, -3545, -3671, -3796, -3920, -4044, -4166, -4288,
	344	-4409, -4529, -4649, -4767, -4885, -5002, -5119, -5235,
	345	-5349, -5464, -5577, -5690, -5802, -5913, -6024, -6134,
	346	-6244, -6352, -6461, -6568, -6675, -6781, -6887, -6992,
	347	-7096, -7200, -7303, -7406, -7508, -7609, -7710, -7810,
	348	-7910, -8009, -8108, -8206, -8304, -8401, -8497, -8593,
	349	-8689, -8784, -8878, -8972, -9066, -9159, -9251, -9343,
	350	-9435, -9526, -9617, -9707, -9796, -9886, -9975, -10063,
	351	-10151, -10238, -10325, -10412, -10839, -10923, -11007, -11090,
	352	-11173, -11256, -11338, -11420, -11501, -11583, -11663, -11744,
	353	-11823, -11903, -11982
	354	};
	355
	356	static const u8 chan_mux[DA9052_ADC_VBBAT + 1] = {
	357	[DA9052_ADC_VDDOUT] = DA9052_ADC_MAN_MUXSEL_VDDOUT,
	358	[DA9052_ADC_ICH] = DA9052_ADC_MAN_MUXSEL_ICH,
	359	[DA9052_ADC_TBAT] = DA9052_ADC_MAN_MUXSEL_TBAT,
	360	[DA9052_ADC_VBAT] = DA9052_ADC_MAN_MUXSEL_VBAT,
	361	[DA9052_ADC_IN4] = DA9052_ADC_MAN_MUXSEL_AD4,
	362	[DA9052_ADC_IN5] = DA9052_ADC_MAN_MUXSEL_AD5,
	363	[DA9052_ADC_IN6] = DA9052_ADC_MAN_MUXSEL_AD6,
	364	[DA9052_ADC_VBBAT] = DA9052_ADC_MAN_MUXSEL_VBBAT
	365	};
	366
	367	int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel)
	368	{
	369	int ret;
	370	unsigned short calc_data;
	371	unsigned short data;
	372	unsigned char mux_sel;
	373
374	if (channel > DA9052_ADC_VBBAT)
375	return -EINVAL;
376
377	mutex_lock(&da9052->auxadc_lock);
378
379	/* Channel gets activated on enabling the Conversion bit */
380	mux_sel = chan_mux[channel] \| DA9052_ADC_MAN_MAN_CONV;
381
382	ret = da9052_reg_write(da9052, DA9052_ADC_MAN_REG, mux_sel);
383	if (ret < 0)
384	goto err;
385
386	/* Wait for an interrupt */
387	if (!wait_for_completion_timeout(&da9052->done,
388	msecs_to_jiffies(500))) {
389	dev_err(da9052->dev,
390	"timeout waiting for ADC conversion interrupt\n");
391	ret = -ETIMEDOUT;
392	goto err;
393	}
394
395	ret = da9052_reg_read(da9052, DA9052_ADC_RES_H_REG);
396	if (ret < 0)
397	goto err;
398
399	calc_data = (unsigned short)ret;
400	data = calc_data << 2;
401
402	ret = da9052_reg_read(da9052, DA9052_ADC_RES_L_REG);
403	if (ret < 0)
404	goto err;
405
406	calc_data = (unsigned short)(ret & DA9052_ADC_RES_LSB);
407	data \|= calc_data;
408
409	ret = data;
410
411	err:
412	mutex_unlock(&da9052->auxadc_lock);
413	return ret;
414	}
415	EXPORT_SYMBOL_GPL(da9052_adc_manual_read);
416
16e5e204 AJ	417	int da9052_adc_read_temp(struct da9052 *da9052)
	418	{
	419	int tbat;
	420
	421	tbat = da9052_reg_read(da9052, DA9052_TBAT_RES_REG);
	422	if (tbat <= 0)
	423	return tbat;
	424
	425	/* ARRAY_SIZE check is not needed since TBAT is a 8-bit register */
	426	return tbat_lookup[tbat - 1];
	427	}
	428	EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
	429
a9e9ce4c	430	static struct mfd_cell da9052_subdev_info[] = {
84c99db8 AJ	431	{
	432	.name = "da9052-regulator",
	433	.id = 1,
	434	},
	435	{
	436	.name = "da9052-regulator",
	437	.id = 2,
	438	},
	439	{
	440	.name = "da9052-regulator",
	441	.id = 3,
	442	},
	443	{
	444	.name = "da9052-regulator",
	445	.id = 4,
	446	},
	447	{
	448	.name = "da9052-regulator",
	449	.id = 5,
	450	},
	451	{
	452	.name = "da9052-regulator",
	453	.id = 6,
	454	},
	455	{
	456	.name = "da9052-regulator",
	457	.id = 7,
	458	},
	459	{
	460	.name = "da9052-regulator",
	461	.id = 8,
	462	},
	463	{
	464	.name = "da9052-regulator",
	465	.id = 9,
	466	},
	467	{
	468	.name = "da9052-regulator",
	469	.id = 10,
	470	},
	471	{
	472	.name = "da9052-regulator",
	473	.id = 11,
	474	},
	475	{
	476	.name = "da9052-regulator",
	477	.id = 12,
	478	},
	479	{
	480	.name = "da9052-regulator",
	481	.id = 13,
	482	},
	483	{
	484	.name = "da9052-regulator",
	485	.id = 14,
	486	},
	487	{
	488	.name = "da9052-onkey",
84c99db8 AJ	489	},
	490	{
	491	.name = "da9052-rtc",
84c99db8 AJ	492	},
	493	{
	494	.name = "da9052-gpio",
	495	},
	496	{
	497	.name = "da9052-hwmon",
	498	},
	499	{
	500	.name = "da9052-leds",
	501	},
	502	{
	503	.name = "da9052-wled1",
	504	},
	505	{
	506	.name = "da9052-wled2",
	507	},
	508	{
	509	.name = "da9052-wled3",
	510	},
	511	{
	512	.name = "da9052-tsi",
84c99db8 AJ	513	},
	514	{
	515	.name = "da9052-bat",
84c99db8 AJ	516	},
	517	{
	518	.name = "da9052-watchdog",
	519	},
	520	};
	521
84c99db8 AJ	522	struct regmap_config da9052_regmap_config = {
	523	.reg_bits = 8,
	524	.val_bits = 8,
	525
	526	.cache_type = REGCACHE_RBTREE,
	527
	528	.max_register = DA9052_PAGE1_CON_REG,
	529	.readable_reg = da9052_reg_readable,
	530	.writeable_reg = da9052_reg_writeable,
	531	.volatile_reg = da9052_reg_volatile,
	532	};
	533	EXPORT_SYMBOL_GPL(da9052_regmap_config);
	534
f791be49	535	int da9052_device_init(struct da9052 *da9052, u8 chip_id)
84c99db8 AJ	536	{
84c99db8 AJ	537	struct da9052_pdata *pdata = da9052->dev->platform_data;
84c99db8 AJ	538	int ret;
84c99db8 AJ	539
16e5e204 AJ	540	mutex_init(&da9052->auxadc_lock);
	541	init_completion(&da9052->done);
	542
84c99db8 AJ	543	if (pdata && pdata->init != NULL)
	544	pdata->init(da9052);
	545
	546	da9052->chip_id = chip_id;
	547
8bad1abd FE	548	ret = da9052_irq_init(da9052);
	549	if (ret != 0) {
	550	dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret);
	551	return ret;
ffe20b68	552	}
16e5e204	553
84c99db8	554	ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
0848c94f	555	ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
ffe20b68 FE	556	if (ret) {
ffe20b68 FE	557	dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret);
84c99db8	558	goto err;
ffe20b68	559	}
84c99db8 AJ	560
	561	return 0;
	562
	563	err:
8bad1abd FE	564	da9052_irq_exit(da9052);
8bad1abd FE	565
84c99db8 AJ	566	return ret;
	567	}
	568
	569	void da9052_device_exit(struct da9052 *da9052)
	570	{
84c99db8	571	mfd_remove_devices(da9052->dev);
8bad1abd	572	da9052_irq_exit(da9052);
84c99db8 AJ	573	}
	574
	575	MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
	576	MODULE_DESCRIPTION("DA9052 MFD Core");
	577	MODULE_LICENSE("GPL");