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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/drivers/regulator/da9211-regulator.c
....@@ -1,18 +1,8 @@
1
-/*
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- * da9211-regulator.c - Regulator device driver for DA9211/DA9212
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- * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
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- * Copyright (C) 2015  Dialog Semiconductor Ltd.
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- *
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- * This library is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU Library General Public
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- * License as published by the Free Software Foundation; either
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- * version 2 of the License, or (at your option) any later version.
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- *
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- * This library is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * Library General Public License for more details.
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- */
1
+// SPDX-License-Identifier: GPL-2.0+
2
+//
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+// da9211-regulator.c - Regulator device driver for DA9211/DA9212
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+// /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
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+// Copyright (C) 2015  Dialog Semiconductor Ltd.
166 
177 #include <linux/err.h>
188 #include <linux/i2c.h>
....@@ -27,16 +17,13 @@
2717 #include <linux/gpio/consumer.h>
2818 #include <linux/regulator/of_regulator.h>
2919 #include <linux/regulator/da9211.h>
20
+#include <dt-bindings/regulator/dlg,da9211-regulator.h>
3021 #include "da9211-regulator.h"
3122 
3223 /* DEVICE IDs */
3324 #define DA9211_DEVICE_ID	0x22
3425 #define DA9213_DEVICE_ID	0x23
3526 #define DA9215_DEVICE_ID	0x24
36
-
37
-#define DA9211_BUCK_MODE_SLEEP	1
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-#define DA9211_BUCK_MODE_SYNC	2
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-#define DA9211_BUCK_MODE_AUTO	3
4027 
4128 /* DA9211 REGULATOR IDs */
4229 #define DA9211_ID_BUCKA	0
....@@ -64,10 +51,24 @@
6451 	},
6552 };
6653 
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+static bool da9211_volatile_reg(struct device *dev, unsigned int reg)
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+{
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+	switch (reg) {
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+	case DA9211_REG_STATUS_A:
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+	case DA9211_REG_STATUS_B:
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+	case DA9211_REG_EVENT_A:
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+	case DA9211_REG_EVENT_B:
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+		return true;
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+	}
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+	return false;
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+}
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+
6766 static const struct regmap_config da9211_regmap_config = {
6867 	.reg_bits = 8,
6968 	.val_bits = 8,
7069 	.max_register = 5 * 128,
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+	.volatile_reg = da9211_volatile_reg,
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+	.cache_type = REGCACHE_RBTREE,
7172 	.ranges = da9211_regmap_range,
7273 	.num_ranges = ARRAY_SIZE(da9211_regmap_range),
7374 };
....@@ -98,6 +99,20 @@
9899 	4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000,
99100 	5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000
100101 };
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+
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+static unsigned int da9211_map_buck_mode(unsigned int mode)
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+{
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+	switch (mode) {
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+	case DA9211_BUCK_MODE_SLEEP:
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+		return REGULATOR_MODE_STANDBY;
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+	case DA9211_BUCK_MODE_SYNC:
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+		return REGULATOR_MODE_FAST;
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+	case DA9211_BUCK_MODE_AUTO:
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+		return REGULATOR_MODE_NORMAL;
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+	default:
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+		return REGULATOR_MODE_INVALID;
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+	}
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+}
101116 
102117 static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
103118 {
....@@ -246,6 +261,7 @@
246261 	.vsel_reg = DA9211_REG_VBUCKA_A + DA9211_ID_##_id * 2,\
247262 	.vsel_mask = DA9211_VBUCK_MASK,\
248263 	.owner = THIS_MODULE,\
264
+	.of_map_mode = da9211_map_buck_mode,\
249265 }
250266 
251267 static struct regulator_desc da9211_regulators[] = {
....@@ -255,8 +271,14 @@
255271 
256272 #ifdef CONFIG_OF
257273 static struct of_regulator_match da9211_matches[] = {
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-	[DA9211_ID_BUCKA] = { .name = "BUCKA" },
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-	[DA9211_ID_BUCKB] = { .name = "BUCKB" },
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+	[DA9211_ID_BUCKA] = {
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+		.name = "BUCKA",
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+		.desc = &da9211_regulators[DA9211_ID_BUCKA],
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+	},
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+	[DA9211_ID_BUCKB] = {
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+		.name = "BUCKB",
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+		.desc = &da9211_regulators[DA9211_ID_BUCKB],
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+	},
260282 	};
261283 
262284 static struct da9211_pdata *da9211_parse_regulators_dt(
....@@ -293,12 +315,14 @@
293315 
294316 		pdata->init_data[n] = da9211_matches[i].init_data;
295317 		pdata->reg_node[n] = da9211_matches[i].of_node;
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-		pdata->gpiod_ren[n] = devm_gpiod_get_from_of_node(dev,
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-								  da9211_matches[i].of_node,
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-								  "enable",
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-								  0,
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-								  GPIOD_OUT_HIGH,
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-								  "da9211-enable");
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+		pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
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+					of_fwnode_handle(pdata->reg_node[n]),
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+					"enable",
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+					GPIOD_OUT_HIGH |
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+						GPIOD_FLAGS_BIT_NONEXCLUSIVE,
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+					"da9211-enable");
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+		if (IS_ERR(pdata->gpiod_ren[n]))
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+			pdata->gpiod_ren[n] = NULL;
302326 		n++;
303327 	}
304328 
....@@ -389,6 +413,12 @@
389413 		else
390414 			config.ena_gpiod = NULL;
391415 
416
+		/*
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+		 * Hand the GPIO descriptor management over to the regulator
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+		 * core, remove it from GPIO devres management.
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+		 */
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+		if (config.ena_gpiod)
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+			devm_gpiod_unhinge(chip->dev, config.ena_gpiod);
392422 		chip->rdev[i] = devm_regulator_register(chip->dev,
393423 			&da9211_regulators[i], &config);
394424 		if (IS_ERR(chip->rdev[i])) {
....@@ -414,8 +444,7 @@
414444 /*
415445  * I2C driver interface functions
416446  */
417
-static int da9211_i2c_probe(struct i2c_client *i2c,
418
-		const struct i2c_device_id *id)
447
+static int da9211_i2c_probe(struct i2c_client *i2c)
419448 {
420449 	struct da9211 *chip;
421450 	int error, ret;
....@@ -524,7 +553,7 @@
524553 		.name = "da9211",
525554 		.of_match_table = of_match_ptr(da9211_dt_ids),
526555 	},
527
-	.probe = da9211_i2c_probe,
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+	.probe_new = da9211_i2c_probe,
528557 	.id_table = da9211_i2c_id,
529558 };
530559