[linux-block.git] / drivers / mfd / tps65910.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * tps65910.c  --  TI TPS6591x chip family multi-function driver
 *
 * Copyright 2010 Texas Instruments Inc.
 *
 * Author: Graeme Gregory <gg@slimlogic.co.uk>
 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
 */

#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/mfd/core.h>
#include <linux/regmap.h>
#include <linux/mfd/tps65910.h>
#include <linux/of.h>
#include <linux/of_device.h>

static const struct resource rtc_resources[] = {
	{
		.start  = TPS65910_IRQ_RTC_ALARM,
		.end    = TPS65910_IRQ_RTC_ALARM,
		.flags  = IORESOURCE_IRQ,
	}
};

static const struct mfd_cell tps65910s[] = {
	{
		.name = "tps65910-gpio",
	},
	{
		.name = "tps65910-pmic",
	},
	{
		.name = "tps65910-rtc",
		.num_resources = ARRAY_SIZE(rtc_resources),
		.resources = &rtc_resources[0],
	},
	{
		.name = "tps65910-power",
	},
};


static const struct regmap_irq tps65911_irqs[] = {
	/* INT_STS */
	[TPS65911_IRQ_PWRHOLD_F] = {
		.mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_VBAT_VMHI] = {
		.mask = INT_MSK_VMBHI_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_PWRON] = {
		.mask = INT_MSK_PWRON_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_PWRON_LP] = {
		.mask = INT_MSK_PWRON_LP_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_PWRHOLD_R] = {
		.mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_HOTDIE] = {
		.mask = INT_MSK_HOTDIE_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_RTC_ALARM] = {
		.mask = INT_MSK_RTC_ALARM_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65911_IRQ_RTC_PERIOD] = {
		.mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK,
		.reg_offset = 0,
	},

	/* INT_STS2 */
	[TPS65911_IRQ_GPIO0_R] = {
		.mask = INT_MSK2_GPIO0_R_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO0_F] = {
		.mask = INT_MSK2_GPIO0_F_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO1_R] = {
		.mask = INT_MSK2_GPIO1_R_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO1_F] = {
		.mask = INT_MSK2_GPIO1_F_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO2_R] = {
		.mask = INT_MSK2_GPIO2_R_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO2_F] = {
		.mask = INT_MSK2_GPIO2_F_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO3_R] = {
		.mask = INT_MSK2_GPIO3_R_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65911_IRQ_GPIO3_F] = {
		.mask = INT_MSK2_GPIO3_F_IT_MSK_MASK,
		.reg_offset = 1,
	},

	/* INT_STS2 */
	[TPS65911_IRQ_GPIO4_R] = {
		.mask = INT_MSK3_GPIO4_R_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_GPIO4_F] = {
		.mask = INT_MSK3_GPIO4_F_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_GPIO5_R] = {
		.mask = INT_MSK3_GPIO5_R_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_GPIO5_F] = {
		.mask = INT_MSK3_GPIO5_F_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_WTCHDG] = {
		.mask = INT_MSK3_WTCHDG_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_VMBCH2_H] = {
		.mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_VMBCH2_L] = {
		.mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK,
		.reg_offset = 2,
	},
	[TPS65911_IRQ_PWRDN] = {
		.mask = INT_MSK3_PWRDN_IT_MSK_MASK,
		.reg_offset = 2,
	},
};

static const struct regmap_irq tps65910_irqs[] = {
	/* INT_STS */
	[TPS65910_IRQ_VBAT_VMBDCH] = {
		.mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_VBAT_VMHI] = {
		.mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_PWRON] = {
		.mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_PWRON_LP] = {
		.mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_PWRHOLD] = {
		.mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_HOTDIE] = {
		.mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_RTC_ALARM] = {
		.mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK,
		.reg_offset = 0,
	},
	[TPS65910_IRQ_RTC_PERIOD] = {
		.mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK,
		.reg_offset = 0,
	},

	/* INT_STS2 */
	[TPS65910_IRQ_GPIO_R] = {
		.mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK,
		.reg_offset = 1,
	},
	[TPS65910_IRQ_GPIO_F] = {
		.mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK,
		.reg_offset = 1,
	},
};

static struct regmap_irq_chip tps65911_irq_chip = {
	.name = "tps65910",
	.irqs = tps65911_irqs,
	.num_irqs = ARRAY_SIZE(tps65911_irqs),
	.num_regs = 3,
	.irq_reg_stride = 2,
	.status_base = TPS65910_INT_STS,
	.mask_base = TPS65910_INT_MSK,
	.ack_base = TPS65910_INT_STS,
};

static struct regmap_irq_chip tps65910_irq_chip = {
	.name = "tps65910",
	.irqs = tps65910_irqs,
	.num_irqs = ARRAY_SIZE(tps65910_irqs),
	.num_regs = 2,
	.irq_reg_stride = 2,
	.status_base = TPS65910_INT_STS,
	.mask_base = TPS65910_INT_MSK,
	.ack_base = TPS65910_INT_STS,
};

static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
		    struct tps65910_platform_data *pdata)
{
	int ret;
	static struct regmap_irq_chip *tps6591x_irqs_chip;

	if (!irq) {
		dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
		return -EINVAL;
	}

	if (!pdata) {
		dev_warn(tps65910->dev, "No interrupt support, no pdata\n");
		return -EINVAL;
	}

	switch (tps65910_chip_id(tps65910)) {
	case TPS65910:
		tps6591x_irqs_chip = &tps65910_irq_chip;
		break;
	case TPS65911:
		tps6591x_irqs_chip = &tps65911_irq_chip;
		break;
	}

	tps65910->chip_irq = irq;
	ret = devm_regmap_add_irq_chip(tps65910->dev, tps65910->regmap,
				       tps65910->chip_irq,
				       IRQF_ONESHOT, pdata->irq_base,
				       tps6591x_irqs_chip, &tps65910->irq_data);
	if (ret < 0) {
		dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
		tps65910->chip_irq = 0;
	}
	return ret;
}

static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
	struct tps65910 *tps65910 = dev_get_drvdata(dev);

	/*
	 * Caching all regulator registers.
	 * All regualator register address range is same for
	 * TPS65910 and TPS65911
	 */
	if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
		/* Check for non-existing register */
		if (tps65910_chip_id(tps65910) == TPS65910)
			if ((reg == TPS65911_VDDCTRL_OP) ||
				(reg == TPS65911_VDDCTRL_SR))
				return true;
		return false;
	}
	return true;
}

static const struct regmap_config tps65910_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.volatile_reg = is_volatile_reg,
	.max_register = TPS65910_MAX_REGISTER - 1,
	.cache_type = REGCACHE_RBTREE,
};

static int tps65910_ck32k_init(struct tps65910 *tps65910,
					struct tps65910_board *pmic_pdata)
{
	int ret;

	if (!pmic_pdata->en_ck32k_xtal)
		return 0;

	ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
				DEVCTRL_CK32K_CTRL_MASK);
	if (ret < 0) {
		dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
		return ret;
	}

	return 0;
}

static int tps65910_sleepinit(struct tps65910 *tps65910,
		struct tps65910_board *pmic_pdata)
{
	struct device *dev;
	int ret;

	if (!pmic_pdata->en_dev_slp)
		return 0;

	dev = tps65910->dev;

	/* enabling SLEEP device state */
	ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
			      DEVCTRL_DEV_SLP_MASK);
	if (ret < 0) {
		dev_err(dev, "set dev_slp failed: %d\n", ret);
		goto err_sleep_init;
	}

	if (pmic_pdata->slp_keepon.therm_keepon) {
		ret = regmap_set_bits(tps65910->regmap,
				      TPS65910_SLEEP_KEEP_RES_ON,
				      SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set therm_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	if (pmic_pdata->slp_keepon.clkout32k_keepon) {
		ret = regmap_set_bits(tps65910->regmap,
				      TPS65910_SLEEP_KEEP_RES_ON,
				      SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	if (pmic_pdata->slp_keepon.i2chs_keepon) {
		ret = regmap_set_bits(tps65910->regmap,
				      TPS65910_SLEEP_KEEP_RES_ON,
				      SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	return 0;

disable_dev_slp:
	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
			  DEVCTRL_DEV_SLP_MASK);

err_sleep_init:
	return ret;
}

#ifdef CONFIG_OF
static const struct of_device_id tps65910_of_match[] = {
	{ .compatible = "ti,tps65910", .data = (void *)TPS65910},
	{ .compatible = "ti,tps65911", .data = (void *)TPS65911},
	{ },
};

static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
						unsigned long *chip_id)
{
	struct device_node *np = client->dev.of_node;
	struct tps65910_board *board_info;
	unsigned int prop;
	const struct of_device_id *match;
	int ret;

	match = of_match_device(tps65910_of_match, &client->dev);
	if (!match) {
		dev_err(&client->dev, "Failed to find matching dt id\n");
		return NULL;
	}

	*chip_id  = (unsigned long)match->data;

	board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
			GFP_KERNEL);
	if (!board_info)
		return NULL;

	ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
	if (!ret)
		board_info->vmbch_threshold = prop;

	ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
	if (!ret)
		board_info->vmbch2_threshold = prop;

	prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
	board_info->en_ck32k_xtal = prop;

	prop = of_property_read_bool(np, "ti,sleep-enable");
	board_info->en_dev_slp = prop;

	prop = of_property_read_bool(np, "ti,sleep-keep-therm");
	board_info->slp_keepon.therm_keepon = prop;

	prop = of_property_read_bool(np, "ti,sleep-keep-ck32k");
	board_info->slp_keepon.clkout32k_keepon = prop;

	prop = of_property_read_bool(np, "ti,sleep-keep-hsclk");
	board_info->slp_keepon.i2chs_keepon = prop;

	board_info->irq = client->irq;
	board_info->irq_base = -1;
	board_info->pm_off = of_property_read_bool(np,
			"ti,system-power-controller");

	return board_info;
}
#else
static inline
struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
					 unsigned long *chip_id)
{
	return NULL;
}
#endif

static struct i2c_client *tps65910_i2c_client;
static void tps65910_power_off(void)
{
	struct tps65910 *tps65910;

	tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);

	regmap_update_bits(tps65910->regmap, TPS65910_DEVCTRL,
			   DEVCTRL_DEV_OFF_MASK | DEVCTRL_DEV_ON_MASK,
			   DEVCTRL_DEV_OFF_MASK);
}

static int tps65910_i2c_probe(struct i2c_client *i2c)
{
	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
	struct tps65910 *tps65910;
	struct tps65910_board *pmic_plat_data;
	struct tps65910_board *of_pmic_plat_data = NULL;
	struct tps65910_platform_data *init_data;
	unsigned long chip_id = id->driver_data;
	int ret;

	pmic_plat_data = dev_get_platdata(&i2c->dev);

	if (!pmic_plat_data && i2c->dev.of_node) {
		pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
		of_pmic_plat_data = pmic_plat_data;
	}

	if (!pmic_plat_data)
		return -EINVAL;

	init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
	if (init_data == NULL)
		return -ENOMEM;

	tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
	if (tps65910 == NULL)
		return -ENOMEM;

	tps65910->of_plat_data = of_pmic_plat_data;
	i2c_set_clientdata(i2c, tps65910);
	tps65910->dev = &i2c->dev;
	tps65910->i2c_client = i2c;
	tps65910->id = chip_id;

	/* Work around silicon erratum SWCZ010: the tps65910 may miss the
	 * first I2C transfer. So issue a dummy transfer before the first
	 * real transfer.
	 */
	i2c_master_send(i2c, "", 1);
	tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
	if (IS_ERR(tps65910->regmap)) {
		ret = PTR_ERR(tps65910->regmap);
		dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
		return ret;
	}

	init_data->irq = pmic_plat_data->irq;
	init_data->irq_base = pmic_plat_data->irq_base;

	tps65910_irq_init(tps65910, init_data->irq, init_data);
	tps65910_ck32k_init(tps65910, pmic_plat_data);
	tps65910_sleepinit(tps65910, pmic_plat_data);

	if (pmic_plat_data->pm_off && !pm_power_off) {
		/*
		 * The PWR_OFF bit needs to be set separately, before
		 * transitioning to the OFF state. It enables the "sequential"
		 * power-off mode on TPS65911, it's a NO-OP on TPS65910.
		 */
		ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
				      DEVCTRL_PWR_OFF_MASK);
		if (ret) {
			dev_err(&i2c->dev, "failed to set power-off mode: %d\n",
				ret);
			return ret;
		}

		tps65910_i2c_client = i2c;
		pm_power_off = tps65910_power_off;
	}

	ret = devm_mfd_add_devices(tps65910->dev, -1,
				   tps65910s, ARRAY_SIZE(tps65910s),
				   NULL, 0,
				   regmap_irq_get_domain(tps65910->irq_data));
	if (ret < 0) {
		dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
		return ret;
	}

	return ret;
}

static const struct i2c_device_id tps65910_i2c_id[] = {
       { "tps65910", TPS65910 },
       { "tps65911", TPS65911 },
       { }
};

static struct i2c_driver tps65910_i2c_driver = {
	.driver = {
		   .name = "tps65910",
		   .of_match_table = of_match_ptr(tps65910_of_match),
	},
	.probe_new = tps65910_i2c_probe,
	.id_table = tps65910_i2c_id,
};

static int __init tps65910_i2c_init(void)
{
	return i2c_add_driver(&tps65910_i2c_driver);
}
/* init early so consumer devices can complete system boot */
subsys_initcall(tps65910_i2c_init);
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
27c6750e	2	/*
a8799def	3	* tps65910.c -- TI TPS6591x chip family multi-function driver
27c6750e GG	4	*
	5	* Copyright 2010 Texas Instruments Inc.
	6	*
	7	* Author: Graeme Gregory <gg@slimlogic.co.uk>
	8	* Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
27c6750e GG	9	*/
27c6750e GG	10
27c6750e	11	#include <linux/init.h>
dc9913a0	12	#include <linux/err.h>
27c6750e GG	13	#include <linux/slab.h>
27c6750e GG	14	#include <linux/i2c.h>
4aab3fad LD	15	#include <linux/interrupt.h>
	16	#include <linux/irq.h>
	17	#include <linux/irqdomain.h>
27c6750e	18	#include <linux/mfd/core.h>
dc9913a0	19	#include <linux/regmap.h>
27c6750e	20	#include <linux/mfd/tps65910.h>
1fead3f3	21	#include <linux/of.h>
cd4209ce	22	#include <linux/of_device.h>
27c6750e	23
0aefed0e	24	static const struct resource rtc_resources[] = {
5863eabb VB	25	{
	26	.start = TPS65910_IRQ_RTC_ALARM,
	27	.end = TPS65910_IRQ_RTC_ALARM,
	28	.flags = IORESOURCE_IRQ,
	29	}
	30	};
	31
30fe2b5b	32	static const struct mfd_cell tps65910s[] = {
32df986e LD	33	{
	34	.name = "tps65910-gpio",
	35	},
27c6750e GG	36	{
	37	.name = "tps65910-pmic",
	38	},
	39	{
	40	.name = "tps65910-rtc",
5863eabb VB	41	.num_resources = ARRAY_SIZE(rtc_resources),
5863eabb VB	42	.resources = &rtc_resources[0],
27c6750e GG	43	},
	44	{
	45	.name = "tps65910-power",
	46	},
	47	};
	48
	49
4aab3fad LD	50	static const struct regmap_irq tps65911_irqs[] = {
	51	/* INT_STS */
	52	[TPS65911_IRQ_PWRHOLD_F] = {
	53	.mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK,
	54	.reg_offset = 0,
	55	},
	56	[TPS65911_IRQ_VBAT_VMHI] = {
	57	.mask = INT_MSK_VMBHI_IT_MSK_MASK,
	58	.reg_offset = 0,
	59	},
	60	[TPS65911_IRQ_PWRON] = {
	61	.mask = INT_MSK_PWRON_IT_MSK_MASK,
	62	.reg_offset = 0,
	63	},
	64	[TPS65911_IRQ_PWRON_LP] = {
	65	.mask = INT_MSK_PWRON_LP_IT_MSK_MASK,
	66	.reg_offset = 0,
	67	},
	68	[TPS65911_IRQ_PWRHOLD_R] = {
	69	.mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK,
	70	.reg_offset = 0,
	71	},
	72	[TPS65911_IRQ_HOTDIE] = {
	73	.mask = INT_MSK_HOTDIE_IT_MSK_MASK,
	74	.reg_offset = 0,
	75	},
	76	[TPS65911_IRQ_RTC_ALARM] = {
	77	.mask = INT_MSK_RTC_ALARM_IT_MSK_MASK,
	78	.reg_offset = 0,
	79	},
	80	[TPS65911_IRQ_RTC_PERIOD] = {
	81	.mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK,
	82	.reg_offset = 0,
	83	},
	84
	85	/* INT_STS2 */
	86	[TPS65911_IRQ_GPIO0_R] = {
	87	.mask = INT_MSK2_GPIO0_R_IT_MSK_MASK,
	88	.reg_offset = 1,
	89	},
	90	[TPS65911_IRQ_GPIO0_F] = {
	91	.mask = INT_MSK2_GPIO0_F_IT_MSK_MASK,
	92	.reg_offset = 1,
	93	},
	94	[TPS65911_IRQ_GPIO1_R] = {
	95	.mask = INT_MSK2_GPIO1_R_IT_MSK_MASK,
	96	.reg_offset = 1,
	97	},
	98	[TPS65911_IRQ_GPIO1_F] = {
	99	.mask = INT_MSK2_GPIO1_F_IT_MSK_MASK,
	100	.reg_offset = 1,
	101	},
	102	[TPS65911_IRQ_GPIO2_R] = {
	103	.mask = INT_MSK2_GPIO2_R_IT_MSK_MASK,
	104	.reg_offset = 1,
	105	},
	106	[TPS65911_IRQ_GPIO2_F] = {
	107	.mask = INT_MSK2_GPIO2_F_IT_MSK_MASK,
	108	.reg_offset = 1,
	109	},
	110	[TPS65911_IRQ_GPIO3_R] = {
	111	.mask = INT_MSK2_GPIO3_R_IT_MSK_MASK,
	112	.reg_offset = 1,
	113	},
114	[TPS65911_IRQ_GPIO3_F] = {
115	.mask = INT_MSK2_GPIO3_F_IT_MSK_MASK,
116	.reg_offset = 1,
117	},
118
119	/* INT_STS2 */
120	[TPS65911_IRQ_GPIO4_R] = {
121	.mask = INT_MSK3_GPIO4_R_IT_MSK_MASK,
122	.reg_offset = 2,
123	},
124	[TPS65911_IRQ_GPIO4_F] = {
125	.mask = INT_MSK3_GPIO4_F_IT_MSK_MASK,
126	.reg_offset = 2,
127	},
128	[TPS65911_IRQ_GPIO5_R] = {
129	.mask = INT_MSK3_GPIO5_R_IT_MSK_MASK,
130	.reg_offset = 2,
131	},
132	[TPS65911_IRQ_GPIO5_F] = {
133	.mask = INT_MSK3_GPIO5_F_IT_MSK_MASK,
134	.reg_offset = 2,
135	},
136	[TPS65911_IRQ_WTCHDG] = {
137	.mask = INT_MSK3_WTCHDG_IT_MSK_MASK,
138	.reg_offset = 2,
139	},
140	[TPS65911_IRQ_VMBCH2_H] = {
141	.mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK,
142	.reg_offset = 2,
143	},
144	[TPS65911_IRQ_VMBCH2_L] = {
145	.mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK,
146	.reg_offset = 2,
147	},
148	[TPS65911_IRQ_PWRDN] = {
149	.mask = INT_MSK3_PWRDN_IT_MSK_MASK,
150	.reg_offset = 2,
151	},
152	};
153
154	static const struct regmap_irq tps65910_irqs[] = {
155	/* INT_STS */
156	[TPS65910_IRQ_VBAT_VMBDCH] = {
157	.mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK,
158	.reg_offset = 0,
159	},
160	[TPS65910_IRQ_VBAT_VMHI] = {
161	.mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK,
162	.reg_offset = 0,
163	},
164	[TPS65910_IRQ_PWRON] = {
165	.mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK,
166	.reg_offset = 0,
167	},
168	[TPS65910_IRQ_PWRON_LP] = {
169	.mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK,
170	.reg_offset = 0,
171	},
172	[TPS65910_IRQ_PWRHOLD] = {
173	.mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK,
174	.reg_offset = 0,
175	},
176	[TPS65910_IRQ_HOTDIE] = {
177	.mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK,
178	.reg_offset = 0,
179	},
180	[TPS65910_IRQ_RTC_ALARM] = {
181	.mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK,
182	.reg_offset = 0,
183	},
184	[TPS65910_IRQ_RTC_PERIOD] = {
185	.mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK,
186	.reg_offset = 0,
187	},
188
189	/* INT_STS2 */
190	[TPS65910_IRQ_GPIO_R] = {
191	.mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK,
192	.reg_offset = 1,
193	},
194	[TPS65910_IRQ_GPIO_F] = {
195	.mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK,
196	.reg_offset = 1,
197	},
198	};
199
200	static struct regmap_irq_chip tps65911_irq_chip = {
201	.name = "tps65910",
202	.irqs = tps65911_irqs,
203	.num_irqs = ARRAY_SIZE(tps65911_irqs),
204	.num_regs = 3,
205	.irq_reg_stride = 2,
206	.status_base = TPS65910_INT_STS,
207	.mask_base = TPS65910_INT_MSK,
0582c0fa	208	.ack_base = TPS65910_INT_STS,
4aab3fad LD	209	};
	210
	211	static struct regmap_irq_chip tps65910_irq_chip = {
	212	.name = "tps65910",
	213	.irqs = tps65910_irqs,
	214	.num_irqs = ARRAY_SIZE(tps65910_irqs),
	215	.num_regs = 2,
	216	.irq_reg_stride = 2,
	217	.status_base = TPS65910_INT_STS,
	218	.mask_base = TPS65910_INT_MSK,
0582c0fa	219	.ack_base = TPS65910_INT_STS,
4aab3fad LD	220	};
	221
	222	static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
	223	struct tps65910_platform_data *pdata)
	224	{
dae3be36	225	int ret;
4aab3fad LD	226	static struct regmap_irq_chip *tps6591x_irqs_chip;
	227
	228	if (!irq) {
	229	dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
	230	return -EINVAL;
	231	}
	232
	233	if (!pdata) {
	234	dev_warn(tps65910->dev, "No interrupt support, no pdata\n");
	235	return -EINVAL;
	236	}
	237
	238	switch (tps65910_chip_id(tps65910)) {
	239	case TPS65910:
	240	tps6591x_irqs_chip = &tps65910_irq_chip;
	241	break;
	242	case TPS65911:
	243	tps6591x_irqs_chip = &tps65911_irq_chip;
	244	break;
	245	}
	246
	247	tps65910->chip_irq = irq;
6167c5bc LD	248	ret = devm_regmap_add_irq_chip(tps65910->dev, tps65910->regmap,
	249	tps65910->chip_irq,
	250	IRQF_ONESHOT, pdata->irq_base,
	251	tps6591x_irqs_chip, &tps65910->irq_data);
483e2dfd	252	if (ret < 0) {
4aab3fad	253	dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
483e2dfd KK	254	tps65910->chip_irq = 0;
483e2dfd KK	255	}
4aab3fad LD	256	return ret;
	257	}
	258
dc9913a0 LD	259	static bool is_volatile_reg(struct device *dev, unsigned int reg)
	260	{
	261	struct tps65910 *tps65910 = dev_get_drvdata(dev);
	262
	263	/*
	264	* Caching all regulator registers.
	265	* All regualator register address range is same for
	266	* TPS65910 and TPS65911
	267	*/
	268	if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
	269	/* Check for non-existing register */
	270	if (tps65910_chip_id(tps65910) == TPS65910)
	271	if ((reg == TPS65911_VDDCTRL_OP) \|\|
	272	(reg == TPS65911_VDDCTRL_SR))
	273	return true;
	274	return false;
	275	}
	276	return true;
	277	}
	278
39ecb037	279	static const struct regmap_config tps65910_regmap_config = {
dc9913a0 LD	280	.reg_bits = 8,
	281	.val_bits = 8,
	282	.volatile_reg = is_volatile_reg,
3bf6bf9b	283	.max_register = TPS65910_MAX_REGISTER - 1,
dc9913a0 LD	284	.cache_type = REGCACHE_RBTREE,
	285	};
	286
f791be49	287	static int tps65910_ck32k_init(struct tps65910 *tps65910,
712db99d JH	288	struct tps65910_board *pmic_pdata)
712db99d JH	289	{
712db99d JH	290	int ret;
712db99d JH	291
d02e83cb JH	292	if (!pmic_pdata->en_ck32k_xtal)
	293	return 0;
	294
28faad77	295	ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
4f278593	296	DEVCTRL_CK32K_CTRL_MASK);
d02e83cb JH	297	if (ret < 0) {
	298	dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
	299	return ret;
712db99d JH	300	}
	301
	302	return 0;
	303	}
	304
f791be49	305	static int tps65910_sleepinit(struct tps65910 *tps65910,
201cf052 LD	306	struct tps65910_board *pmic_pdata)
201cf052 LD	307	{
da257efa	308	struct device *dev;
dae3be36	309	int ret;
201cf052	310
201cf052 LD	311	if (!pmic_pdata->en_dev_slp)
	312	return 0;
	313
71bc4f1d ME	314	dev = tps65910->dev;
71bc4f1d ME	315
201cf052	316	/* enabling SLEEP device state */
28faad77	317	ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
4f278593	318	DEVCTRL_DEV_SLP_MASK);
201cf052 LD	319	if (ret < 0) {
	320	dev_err(dev, "set dev_slp failed: %d\n", ret);
	321	goto err_sleep_init;
	322	}
	323
a9bc67de	324	if (pmic_pdata->slp_keepon.therm_keepon) {
28faad77	325	ret = regmap_set_bits(tps65910->regmap,
4f278593 LJ	326	TPS65910_SLEEP_KEEP_RES_ON,
4f278593 LJ	327	SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
201cf052 LD	328	if (ret < 0) {
	329	dev_err(dev, "set therm_keepon failed: %d\n", ret);
	330	goto disable_dev_slp;
	331	}
	332	}
	333
a9bc67de	334	if (pmic_pdata->slp_keepon.clkout32k_keepon) {
28faad77	335	ret = regmap_set_bits(tps65910->regmap,
4f278593 LJ	336	TPS65910_SLEEP_KEEP_RES_ON,
4f278593 LJ	337	SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
201cf052 LD	338	if (ret < 0) {
	339	dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
	340	goto disable_dev_slp;
	341	}
	342	}
	343
a9bc67de	344	if (pmic_pdata->slp_keepon.i2chs_keepon) {
28faad77	345	ret = regmap_set_bits(tps65910->regmap,
4f278593 LJ	346	TPS65910_SLEEP_KEEP_RES_ON,
4f278593 LJ	347	SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
201cf052 LD	348	if (ret < 0) {
	349	dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
	350	goto disable_dev_slp;
	351	}
	352	}
	353
	354	return 0;
	355
	356	disable_dev_slp:
28faad77	357	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
4f278593	358	DEVCTRL_DEV_SLP_MASK);
201cf052 LD	359
	360	err_sleep_init:
	361	return ret;
	362	}
	363
cd4209ce	364	#ifdef CONFIG_OF
c0dfbfe2	365	static const struct of_device_id tps65910_of_match[] = {
cd4209ce RK	366	{ .compatible = "ti,tps65910", .data = (void *)TPS65910},
	367	{ .compatible = "ti,tps65911", .data = (void *)TPS65911},
	368	{ },
	369	};
cd4209ce RK	370
cd4209ce RK	371	static struct tps65910_board tps65910_parse_dt(struct i2c_client client,
01a0f4aa	372	unsigned long *chip_id)
cd4209ce RK	373	{
	374	struct device_node *np = client->dev.of_node;
	375	struct tps65910_board *board_info;
	376	unsigned int prop;
	377	const struct of_device_id *match;
dae3be36	378	int ret;
cd4209ce RK	379
	380	match = of_match_device(tps65910_of_match, &client->dev);
	381	if (!match) {
	382	dev_err(&client->dev, "Failed to find matching dt id\n");
	383	return NULL;
	384	}
	385
01a0f4aa	386	*chip_id = (unsigned long)match->data;
cd4209ce RK	387
	388	board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
	389	GFP_KERNEL);
93e879ef	390	if (!board_info)
cd4209ce	391	return NULL;
cd4209ce RK	392
	393	ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
	394	if (!ret)
	395	board_info->vmbch_threshold = prop;
cd4209ce RK	396
	397	ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
	398	if (!ret)
	399	board_info->vmbch2_threshold = prop;
cd4209ce	400
bcc1dd4c JH	401	prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
	402	board_info->en_ck32k_xtal = prop;
	403
a9bc67de MM	404	prop = of_property_read_bool(np, "ti,sleep-enable");
	405	board_info->en_dev_slp = prop;
	406
	407	prop = of_property_read_bool(np, "ti,sleep-keep-therm");
	408	board_info->slp_keepon.therm_keepon = prop;
	409
	410	prop = of_property_read_bool(np, "ti,sleep-keep-ck32k");
	411	board_info->slp_keepon.clkout32k_keepon = prop;
	412
	413	prop = of_property_read_bool(np, "ti,sleep-keep-hsclk");
	414	board_info->slp_keepon.i2chs_keepon = prop;
	415
cd4209ce RK	416	board_info->irq = client->irq;
cd4209ce RK	417	board_info->irq_base = -1;
b079fa72 BH	418	board_info->pm_off = of_property_read_bool(np,
b079fa72 BH	419	"ti,system-power-controller");
cd4209ce RK	420
	421	return board_info;
	422	}
	423	#else
7f65f74c SO	424	static inline
7f65f74c SO	425	struct tps65910_board tps65910_parse_dt(struct i2c_client client,
01a0f4aa	426	unsigned long *chip_id)
cd4209ce RK	427	{
	428	return NULL;
	429	}
	430	#endif
201cf052	431
b079fa72 BH	432	static struct i2c_client *tps65910_i2c_client;
	433	static void tps65910_power_off(void)
	434	{
	435	struct tps65910 *tps65910;
	436
	437	tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
	438
129989d5 DO	439	regmap_update_bits(tps65910->regmap, TPS65910_DEVCTRL,
	440	DEVCTRL_DEV_OFF_MASK \| DEVCTRL_DEV_ON_MASK,
	441	DEVCTRL_DEV_OFF_MASK);
b079fa72 BH	442	}
b079fa72 BH	443
74e52d31	444	static int tps65910_i2c_probe(struct i2c_client *i2c)
27c6750e	445	{
74e52d31	446	const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
27c6750e	447	struct tps65910 *tps65910;
2537df72	448	struct tps65910_board *pmic_plat_data;
cb8d8654	449	struct tps65910_board *of_pmic_plat_data = NULL;
e3471bdc	450	struct tps65910_platform_data *init_data;
01a0f4aa	451	unsigned long chip_id = id->driver_data;
dae3be36	452	int ret;
27c6750e	453
2537df72	454	pmic_plat_data = dev_get_platdata(&i2c->dev);
cd4209ce	455
cb8d8654	456	if (!pmic_plat_data && i2c->dev.of_node) {
cd4209ce	457	pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
cb8d8654 LD	458	of_pmic_plat_data = pmic_plat_data;
cb8d8654 LD	459	}
cd4209ce	460
2537df72 GG	461	if (!pmic_plat_data)
	462	return -EINVAL;
	463
63fe7dee	464	init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
e3471bdc GG	465	if (init_data == NULL)
	466	return -ENOMEM;
	467
63fe7dee LD	468	tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
63fe7dee LD	469	if (tps65910 == NULL)
27c6750e GG	470	return -ENOMEM;
27c6750e GG	471
cb8d8654	472	tps65910->of_plat_data = of_pmic_plat_data;
27c6750e GG	473	i2c_set_clientdata(i2c, tps65910);
	474	tps65910->dev = &i2c->dev;
	475	tps65910->i2c_client = i2c;
cd4209ce	476	tps65910->id = chip_id;
27c6750e	477
be1c7700 AVEM	478	/* Work around silicon erratum SWCZ010: the tps65910 may miss the
	479	* first I2C transfer. So issue a dummy transfer before the first
	480	* real transfer.
	481	*/
	482	i2c_master_send(i2c, "", 1);
63fe7dee	483	tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
dc9913a0 LD	484	if (IS_ERR(tps65910->regmap)) {
	485	ret = PTR_ERR(tps65910->regmap);
	486	dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
63fe7dee	487	return ret;
dc9913a0 LD	488	}
dc9913a0 LD	489
b1224cd1	490	init_data->irq = pmic_plat_data->irq;
1773140f	491	init_data->irq_base = pmic_plat_data->irq_base;
b1224cd1	492
1e351a95	493	tps65910_irq_init(tps65910, init_data->irq, init_data);
d02e83cb	494	tps65910_ck32k_init(tps65910, pmic_plat_data);
201cf052 LD	495	tps65910_sleepinit(tps65910, pmic_plat_data);
201cf052 LD	496
b079fa72	497	if (pmic_plat_data->pm_off && !pm_power_off) {
7620ad0b DO	498	/*
	499	* The PWR_OFF bit needs to be set separately, before
	500	* transitioning to the OFF state. It enables the "sequential"
	501	* power-off mode on TPS65911, it's a NO-OP on TPS65910.
	502	*/
	503	ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
	504	DEVCTRL_PWR_OFF_MASK);
	505	if (ret) {
	506	dev_err(&i2c->dev, "failed to set power-off mode: %d\n",
	507	ret);
	508	return ret;
	509	}
	510
b079fa72 BH	511	tps65910_i2c_client = i2c;
	512	pm_power_off = tps65910_power_off;
	513	}
	514
f3466e77 LD	515	ret = devm_mfd_add_devices(tps65910->dev, -1,
	516	tps65910s, ARRAY_SIZE(tps65910s),
	517	NULL, 0,
	518	regmap_irq_get_domain(tps65910->irq_data));
10ecb80e LD	519	if (ret < 0) {
	520	dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
	521	return ret;
	522	}
	523
27c6750e GG	524	return ret;
	525	}
	526
27c6750e	527	static const struct i2c_device_id tps65910_i2c_id[] = {
79557056 JEC	528	{ "tps65910", TPS65910 },
79557056 JEC	529	{ "tps65911", TPS65911 },
27c6750e GG	530	{ }
27c6750e GG	531	};
27c6750e GG	532
	533	static struct i2c_driver tps65910_i2c_driver = {
	534	.driver = {
	535	.name = "tps65910",
cd4209ce	536	.of_match_table = of_match_ptr(tps65910_of_match),
27c6750e	537	},
74e52d31	538	.probe_new = tps65910_i2c_probe,
27c6750e GG	539	.id_table = tps65910_i2c_id,
	540	};
	541
	542	static int __init tps65910_i2c_init(void)
	543	{
	544	return i2c_add_driver(&tps65910_i2c_driver);
	545	}
	546	/* init early so consumer devices can complete system boot */
	547	subsys_initcall(tps65910_i2c_init);