Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) // da9211-regulator.c - Regulator device driver for DA9211/DA9212
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) // /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) // Copyright (C) 2015  Dialog Semiconductor Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/regulator/machine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/regulator/da9211.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <dt-bindings/regulator/dlg,da9211-regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include "da9211-regulator.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) /* DEVICE IDs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define DA9211_DEVICE_ID	0x22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define DA9213_DEVICE_ID	0x23
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define DA9215_DEVICE_ID	0x24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) /* DA9211 REGULATOR IDs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define DA9211_ID_BUCKA	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define DA9211_ID_BUCKB	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) struct da9211 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct da9211_pdata *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct regulator_dev *rdev[DA9211_MAX_REGULATORS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int num_regulator;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	int chip_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	int chip_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) static const struct regmap_range_cfg da9211_regmap_range[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		.selector_reg = DA9211_REG_PAGE_CON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		.selector_mask  = DA9211_REG_PAGE_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		.selector_shift = DA9211_REG_PAGE_SHIFT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		.window_start = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		.window_len = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		.range_min = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		.range_max = 5*128,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) static bool da9211_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	case DA9211_REG_STATUS_A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	case DA9211_REG_STATUS_B:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	case DA9211_REG_EVENT_A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	case DA9211_REG_EVENT_B:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) static const struct regmap_config da9211_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	.max_register = 5 * 128,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	.volatile_reg = da9211_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	.cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	.ranges = da9211_regmap_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	.num_ranges = ARRAY_SIZE(da9211_regmap_range),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) /* Default limits measured in millivolts and milliamps */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define DA9211_MIN_MV		300
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define DA9211_MAX_MV		1570
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define DA9211_STEP_MV		10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) /* Current limits for DA9211 buck (uA) indices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)  * corresponds with register values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) static const int da9211_current_limits[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	2000000, 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) /* Current limits for DA9213 buck (uA) indices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  * corresponds with register values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) static const int da9213_current_limits[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) /* Current limits for DA9215 buck (uA) indices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96)  * corresponds with register values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static const int da9215_current_limits[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static unsigned int da9211_map_buck_mode(unsigned int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	case DA9211_BUCK_MODE_SLEEP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		return REGULATOR_MODE_STANDBY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	case DA9211_BUCK_MODE_SYNC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		return REGULATOR_MODE_FAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	case DA9211_BUCK_MODE_AUTO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return REGULATOR_MODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		return REGULATOR_MODE_INVALID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	int id = rdev_get_id(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	struct da9211 *chip = rdev_get_drvdata(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	int ret, mode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	ret = regmap_read(chip->regmap, DA9211_REG_BUCKA_CONF+id, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	switch (data & 0x03) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	case DA9211_BUCK_MODE_SYNC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		mode = REGULATOR_MODE_FAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	case DA9211_BUCK_MODE_AUTO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		mode = REGULATOR_MODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	case DA9211_BUCK_MODE_SLEEP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		mode = REGULATOR_MODE_STANDBY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	return mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static int da9211_buck_set_mode(struct regulator_dev *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 					unsigned int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	int id = rdev_get_id(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct da9211 *chip = rdev_get_drvdata(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	int val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	case REGULATOR_MODE_FAST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		val = DA9211_BUCK_MODE_SYNC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	case REGULATOR_MODE_NORMAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		val = DA9211_BUCK_MODE_AUTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	case REGULATOR_MODE_STANDBY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		val = DA9211_BUCK_MODE_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	return regmap_update_bits(chip->regmap, DA9211_REG_BUCKA_CONF+id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 					0x03, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static int da9211_set_current_limit(struct regulator_dev *rdev, int min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 				    int max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	int id = rdev_get_id(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct da9211 *chip = rdev_get_drvdata(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	int i, max_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	const int *current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	switch (chip->chip_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	case DA9211:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		current_limits = da9211_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		max_size = ARRAY_SIZE(da9211_current_limits)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	case DA9213:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		current_limits = da9213_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		max_size = ARRAY_SIZE(da9213_current_limits)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	case DA9215:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		current_limits = da9215_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		max_size = ARRAY_SIZE(da9215_current_limits)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	/* search for closest to maximum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	for (i = max_size; i >= 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		if (min <= current_limits[i] &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		    max >= current_limits[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 				return regmap_update_bits(chip->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 					DA9211_REG_BUCK_ILIM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 					(0x0F << id*4), (i << id*4));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static int da9211_get_current_limit(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	int id = rdev_get_id(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	struct da9211 *chip = rdev_get_drvdata(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	const int *current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	switch (chip->chip_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	case DA9211:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		current_limits = da9211_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	case DA9213:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		current_limits = da9213_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	case DA9215:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		current_limits = da9215_current_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	ret = regmap_read(chip->regmap, DA9211_REG_BUCK_ILIM, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	/* select one of 16 values: 0000 (2000mA or 3000mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	 * to 1111 (5000mA or 6000mA).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	data = (data >> id*4) & 0x0F;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	return current_limits[data];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static const struct regulator_ops da9211_buck_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	.get_mode = da9211_buck_get_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	.set_mode = da9211_buck_set_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	.enable = regulator_enable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	.disable = regulator_disable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	.is_enabled = regulator_is_enabled_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	.list_voltage = regulator_list_voltage_linear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	.set_current_limit = da9211_set_current_limit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	.get_current_limit = da9211_get_current_limit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) #define DA9211_BUCK(_id) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	.name = #_id,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	.ops = &da9211_buck_ops,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	.type = REGULATOR_VOLTAGE,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	.id = DA9211_ID_##_id,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	.n_voltages = (DA9211_MAX_MV - DA9211_MIN_MV) / DA9211_STEP_MV + 1,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	.min_uV = (DA9211_MIN_MV * 1000),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	.uV_step = (DA9211_STEP_MV * 1000),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	.enable_reg = DA9211_REG_BUCKA_CONT + DA9211_ID_##_id,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	.enable_mask = DA9211_BUCKA_EN,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	.vsel_reg = DA9211_REG_VBUCKA_A + DA9211_ID_##_id * 2,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	.vsel_mask = DA9211_VBUCK_MASK,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	.owner = THIS_MODULE,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	.of_map_mode = da9211_map_buck_mode,\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) static struct regulator_desc da9211_regulators[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	DA9211_BUCK(BUCKA),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	DA9211_BUCK(BUCKB),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) static struct of_regulator_match da9211_matches[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	[DA9211_ID_BUCKA] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		.name = "BUCKA",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		.desc = &da9211_regulators[DA9211_ID_BUCKA],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	[DA9211_ID_BUCKB] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		.name = "BUCKB",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		.desc = &da9211_regulators[DA9211_ID_BUCKB],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static struct da9211_pdata *da9211_parse_regulators_dt(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	struct da9211_pdata *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	struct device_node *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	int i, num, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	node = of_get_child_by_name(dev->of_node, "regulators");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	if (!node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 		dev_err(dev, "regulators node not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		return ERR_PTR(-ENODEV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	num = of_regulator_match(dev, node, da9211_matches,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 				 ARRAY_SIZE(da9211_matches));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	of_node_put(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	if (num < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		dev_err(dev, "Failed to match regulators\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		return ERR_PTR(-EINVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 		return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	pdata->num_buck = num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	n = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	for (i = 0; i < ARRAY_SIZE(da9211_matches); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 		if (!da9211_matches[i].init_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		pdata->init_data[n] = da9211_matches[i].init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		pdata->reg_node[n] = da9211_matches[i].of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 					of_fwnode_handle(pdata->reg_node[n]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 					"enable",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 					GPIOD_OUT_HIGH |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 						GPIOD_FLAGS_BIT_NONEXCLUSIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 					"da9211-enable");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		if (IS_ERR(pdata->gpiod_ren[n]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 			pdata->gpiod_ren[n] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		n++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	return pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static struct da9211_pdata *da9211_parse_regulators_dt(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	return ERR_PTR(-ENODEV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) static irqreturn_t da9211_irq_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	struct da9211 *chip = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	int reg_val, err, ret = IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	err = regmap_read(chip->regmap, DA9211_REG_EVENT_B, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		goto error_i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	if (reg_val & DA9211_E_OV_CURR_A) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		regulator_notifier_call_chain(chip->rdev[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 			REGULATOR_EVENT_OVER_CURRENT, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 			DA9211_E_OV_CURR_A);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 			goto error_i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 		ret = IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	if (reg_val & DA9211_E_OV_CURR_B) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		regulator_notifier_call_chain(chip->rdev[1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 			REGULATOR_EVENT_OVER_CURRENT, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 			DA9211_E_OV_CURR_B);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 			goto error_i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 		ret = IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) error_i2c:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	dev_err(chip->dev, "I2C error : %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	return IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static int da9211_regulator_init(struct da9211 *chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	struct regulator_config config = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	int i, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	ret = regmap_read(chip->regmap, DA9211_REG_CONFIG_E, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 		dev_err(chip->dev, "Failed to read CONFIG_E reg: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	data &= DA9211_SLAVE_SEL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	/* If configuration for 1/2 bucks is different between platform data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	 * and the register, driver should exit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	if (chip->pdata->num_buck == 1 && data == 0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 		chip->num_regulator = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	else if (chip->pdata->num_buck == 2 && data != 0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 		chip->num_regulator = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		dev_err(chip->dev, "Configuration is mismatched\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	for (i = 0; i < chip->num_regulator; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 		config.init_data = chip->pdata->init_data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 		config.dev = chip->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 		config.driver_data = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 		config.regmap = chip->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 		config.of_node = chip->pdata->reg_node[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 		if (chip->pdata->gpiod_ren[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 			config.ena_gpiod = chip->pdata->gpiod_ren[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 			config.ena_gpiod = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		 * Hand the GPIO descriptor management over to the regulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 		 * core, remove it from GPIO devres management.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 		if (config.ena_gpiod)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 			devm_gpiod_unhinge(chip->dev, config.ena_gpiod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 		chip->rdev[i] = devm_regulator_register(chip->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 			&da9211_regulators[i], &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 		if (IS_ERR(chip->rdev[i])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 			dev_err(chip->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 				"Failed to register DA9211 regulator\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 			return PTR_ERR(chip->rdev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 		if (chip->chip_irq != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 			ret = regmap_update_bits(chip->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 				DA9211_REG_MASK_B, DA9211_M_OV_CURR_A << i, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 			if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 				dev_err(chip->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 					"Failed to update mask reg: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 				return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)  * I2C driver interface functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static int da9211_i2c_probe(struct i2c_client *i2c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	struct da9211 *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	int error, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 	unsigned int data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 	chip = devm_kzalloc(&i2c->dev, sizeof(struct da9211), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 	if (!chip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	chip->dev = &i2c->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	chip->regmap = devm_regmap_init_i2c(i2c, &da9211_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	if (IS_ERR(chip->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 		error = PTR_ERR(chip->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 		dev_err(chip->dev, "Failed to allocate register map: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 			error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	i2c_set_clientdata(i2c, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	chip->pdata = i2c->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 	ret = regmap_read(chip->regmap, DA9211_REG_DEVICE_ID, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 		dev_err(chip->dev, "Failed to read DEVICE_ID reg: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 	switch (data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 	case DA9211_DEVICE_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 		chip->chip_id = DA9211;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 	case DA9213_DEVICE_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 		chip->chip_id = DA9213;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 	case DA9215_DEVICE_ID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 		chip->chip_id = DA9215;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 		dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 	if (!chip->pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 		chip->pdata = da9211_parse_regulators_dt(chip->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 	if (IS_ERR(chip->pdata)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 		dev_err(chip->dev, "No regulators defined for the platform\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 		return PTR_ERR(chip->pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 	chip->chip_irq = i2c->irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 	if (chip->chip_irq != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 		ret = devm_request_threaded_irq(chip->dev, chip->chip_irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 					da9211_irq_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 					IRQF_TRIGGER_LOW|IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 					"da9211", chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 		if (ret != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 			dev_err(chip->dev, "Failed to request IRQ: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 				chip->chip_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 		dev_warn(chip->dev, "No IRQ configured\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 	ret = da9211_regulator_init(chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 		dev_err(chip->dev, "Failed to initialize regulator: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) static const struct i2c_device_id da9211_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 	{"da9211", DA9211},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 	{"da9212", DA9212},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 	{"da9213", DA9213},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	{"da9223", DA9223},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	{"da9214", DA9214},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 	{"da9224", DA9224},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 	{"da9215", DA9215},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 	{"da9225", DA9225},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) static const struct of_device_id da9211_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 	{ .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 	{ .compatible = "dlg,da9212", .data = &da9211_i2c_id[1] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 	{ .compatible = "dlg,da9213", .data = &da9211_i2c_id[2] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 	{ .compatible = "dlg,da9223", .data = &da9211_i2c_id[3] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 	{ .compatible = "dlg,da9214", .data = &da9211_i2c_id[4] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 	{ .compatible = "dlg,da9224", .data = &da9211_i2c_id[5] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 	{ .compatible = "dlg,da9215", .data = &da9211_i2c_id[6] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 	{ .compatible = "dlg,da9225", .data = &da9211_i2c_id[7] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) MODULE_DEVICE_TABLE(of, da9211_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) static struct i2c_driver da9211_regulator_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 		.name = "da9211",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) 		.of_match_table = of_match_ptr(da9211_dt_ids),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 	.probe_new = da9211_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) 	.id_table = da9211_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) module_i2c_driver(da9211_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) MODULE_LICENSE("GPL");