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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/drivers/regulator/lp87565-regulator.c
....@@ -1,11 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Regulator driver for LP87565 PMIC
34  *
4
- * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
5
- *
6
- *  This program is free software; you can redistribute  it and/or modify it
7
- *  under  the terms of  the GNU General  Public License as published by the
8
- *  Free Software Foundation version 2. 
5
+ * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
96  */
107 
118 #include <linux/module.h>
....@@ -14,8 +11,8 @@
1411 
1512 #include <linux/mfd/lp87565.h>
1613 
17
-#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm, _er, _em, \
18
-			 _delay, _lr, _cr)				\
14
+#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm,		\
15
+			  _er, _em, _ev, _delay, _lr, _cr)		\
1916 	[_id] = {							\
2017 		.desc = {						\
2118 			.name			= _name,		\
....@@ -31,9 +28,14 @@
3128 			.vsel_mask		= _vm,			\
3229 			.enable_reg		= _er,			\
3330 			.enable_mask		= _em,			\
31
+			.enable_val		= _ev,			\
3432 			.ramp_delay		= _delay,		\
3533 			.linear_ranges		= _lr,			\
3634 			.n_linear_ranges	= ARRAY_SIZE(_lr),	\
35
+			.curr_table = lp87565_buck_uA,			\
36
+			.n_current_limits = ARRAY_SIZE(lp87565_buck_uA),\
37
+			.csel_reg = (_cr),				\
38
+			.csel_mask = LP87565_BUCK_CTRL_2_ILIM,		\
3739 		},							\
3840 		.ctrl2_reg = _cr,					\
3941 	}
....@@ -45,13 +47,13 @@
4547 
4648 static const struct lp87565_regulator regulators[];
4749 
48
-static const struct regulator_linear_range buck0_1_2_3_ranges[] = {
50
+static const struct linear_range buck0_1_2_3_ranges[] = {
4951 	REGULATOR_LINEAR_RANGE(600000, 0xA, 0x17, 10000),
5052 	REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000),
5153 	REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000),
5254 };
5355 
54
-static unsigned int lp87565_buck_ramp_delay[] = {
56
+static const unsigned int lp87565_buck_ramp_delay[] = {
5557 	30000, 15000, 10000, 7500, 3800, 1900, 940, 470
5658 };
5759 
....@@ -64,7 +66,6 @@
6466 				       int ramp_delay)
6567 {
6668 	int id = rdev_get_id(rdev);
67
-	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
6869 	unsigned int reg;
6970 	int ret;
7071 
....@@ -85,11 +86,11 @@
8586 	else
8687 		reg = 0;
8788 
88
-	ret = regmap_update_bits(lp87565->regmap, regulators[id].ctrl2_reg,
89
+	ret = regmap_update_bits(rdev->regmap, regulators[id].ctrl2_reg,
8990 				 LP87565_BUCK_CTRL_2_SLEW_RATE,
9091 				 reg << __ffs(LP87565_BUCK_CTRL_2_SLEW_RATE));
9192 	if (ret) {
92
-		dev_err(lp87565->dev, "SLEW RATE write failed: %d\n", ret);
93
+		dev_err(&rdev->dev, "SLEW RATE write failed: %d\n", ret);
9394 		return ret;
9495 	}
9596 
....@@ -102,45 +103,8 @@
102103 	return 0;
103104 }
104105 
105
-static int lp87565_buck_set_current_limit(struct regulator_dev *rdev,
106
-					  int min_uA, int max_uA)
107
-{
108
-	int id = rdev_get_id(rdev);
109
-	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
110
-	int i;
111
-
112
-	for (i = ARRAY_SIZE(lp87565_buck_uA) - 1; i >= 0; i--) {
113
-		if (lp87565_buck_uA[i] >= min_uA &&
114
-		    lp87565_buck_uA[i] <= max_uA)
115
-			return regmap_update_bits(lp87565->regmap,
116
-						  regulators[id].ctrl2_reg,
117
-						  LP87565_BUCK_CTRL_2_ILIM,
118
-						  i << __ffs(LP87565_BUCK_CTRL_2_ILIM));
119
-	}
120
-
121
-	return -EINVAL;
122
-}
123
-
124
-static int lp87565_buck_get_current_limit(struct regulator_dev *rdev)
125
-{
126
-	int id = rdev_get_id(rdev);
127
-	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
128
-	int ret;
129
-	unsigned int val;
130
-
131
-	ret = regmap_read(lp87565->regmap, regulators[id].ctrl2_reg, &val);
132
-	if (ret)
133
-		return ret;
134
-
135
-	val = (val & LP87565_BUCK_CTRL_2_ILIM) >>
136
-	       __ffs(LP87565_BUCK_CTRL_2_ILIM);
137
-
138
-	return (val < ARRAY_SIZE(lp87565_buck_uA)) ?
139
-			lp87565_buck_uA[val] : -EINVAL;
140
-}
141
-
142
-/* Operations permitted on BUCK0, BUCK1 */
143
-static struct regulator_ops lp87565_buck_ops = {
106
+/* Operations permitted on BUCKs */
107
+static const struct regulator_ops lp87565_buck_ops = {
144108 	.is_enabled		= regulator_is_enabled_regmap,
145109 	.enable			= regulator_enable_regmap,
146110 	.disable		= regulator_disable_regmap,
....@@ -150,42 +114,64 @@
150114 	.map_voltage		= regulator_map_voltage_linear_range,
151115 	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
152116 	.set_ramp_delay		= lp87565_buck_set_ramp_delay,
153
-	.set_current_limit	= lp87565_buck_set_current_limit,
154
-	.get_current_limit	= lp87565_buck_get_current_limit,
117
+	.set_current_limit	= regulator_set_current_limit_regmap,
118
+	.get_current_limit	= regulator_get_current_limit_regmap,
155119 };
156120 
157121 static const struct lp87565_regulator regulators[] = {
158122 	LP87565_REGULATOR("BUCK0", LP87565_BUCK_0, "buck0", lp87565_buck_ops,
159123 			  256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
160124 			  LP87565_REG_BUCK0_CTRL_1,
125
+			  LP87565_BUCK_CTRL_1_EN |
126
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
161127 			  LP87565_BUCK_CTRL_1_EN, 3230,
162128 			  buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
163129 	LP87565_REGULATOR("BUCK1", LP87565_BUCK_1, "buck1", lp87565_buck_ops,
164130 			  256, LP87565_REG_BUCK1_VOUT, LP87565_BUCK_VSET,
165131 			  LP87565_REG_BUCK1_CTRL_1,
132
+			  LP87565_BUCK_CTRL_1_EN |
133
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
166134 			  LP87565_BUCK_CTRL_1_EN, 3230,
167135 			  buck0_1_2_3_ranges, LP87565_REG_BUCK1_CTRL_2),
168136 	LP87565_REGULATOR("BUCK2", LP87565_BUCK_2, "buck2", lp87565_buck_ops,
169137 			  256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
170138 			  LP87565_REG_BUCK2_CTRL_1,
139
+			  LP87565_BUCK_CTRL_1_EN |
140
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
171141 			  LP87565_BUCK_CTRL_1_EN, 3230,
172142 			  buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
173143 	LP87565_REGULATOR("BUCK3", LP87565_BUCK_3, "buck3", lp87565_buck_ops,
174144 			  256, LP87565_REG_BUCK3_VOUT, LP87565_BUCK_VSET,
175145 			  LP87565_REG_BUCK3_CTRL_1,
146
+			  LP87565_BUCK_CTRL_1_EN |
147
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
176148 			  LP87565_BUCK_CTRL_1_EN, 3230,
177149 			  buck0_1_2_3_ranges, LP87565_REG_BUCK3_CTRL_2),
178150 	LP87565_REGULATOR("BUCK10", LP87565_BUCK_10, "buck10", lp87565_buck_ops,
179151 			  256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
180152 			  LP87565_REG_BUCK0_CTRL_1,
181153 			  LP87565_BUCK_CTRL_1_EN |
154
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL |
155
+			  LP87565_BUCK_CTRL_1_FPWM_MP_0_2,
156
+			  LP87565_BUCK_CTRL_1_EN |
182157 			  LP87565_BUCK_CTRL_1_FPWM_MP_0_2, 3230,
183158 			  buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
184159 	LP87565_REGULATOR("BUCK23", LP87565_BUCK_23, "buck23", lp87565_buck_ops,
185160 			  256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
186161 			  LP87565_REG_BUCK2_CTRL_1,
162
+			  LP87565_BUCK_CTRL_1_EN |
163
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
187164 			  LP87565_BUCK_CTRL_1_EN, 3230,
188165 			  buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
166
+	LP87565_REGULATOR("BUCK3210", LP87565_BUCK_3210, "buck3210",
167
+			  lp87565_buck_ops, 256, LP87565_REG_BUCK0_VOUT,
168
+			  LP87565_BUCK_VSET, LP87565_REG_BUCK0_CTRL_1,
169
+			  LP87565_BUCK_CTRL_1_EN |
170
+			  LP87565_BUCK_CTRL_1_EN_PIN_CTRL |
171
+			  LP87565_BUCK_CTRL_1_FPWM_MP_0_2,
172
+			  LP87565_BUCK_CTRL_1_EN |
173
+			  LP87565_BUCK_CTRL_1_FPWM_MP_0_2, 3230,
174
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
189175 };
190176 
191177 static int lp87565_regulator_probe(struct platform_device *pdev)
....@@ -193,7 +179,7 @@
193179 	struct lp87565 *lp87565 = dev_get_drvdata(pdev->dev.parent);
194180 	struct regulator_config config = { };
195181 	struct regulator_dev *rdev;
196
-	int i, min_idx = LP87565_BUCK_0, max_idx = LP87565_BUCK_3;
182
+	int i, min_idx, max_idx;
197183 
198184 	platform_set_drvdata(pdev, lp87565);
199185 
....@@ -202,9 +188,19 @@
202188 	config.driver_data = lp87565;
203189 	config.regmap = lp87565->regmap;
204190 
205
-	if (lp87565->dev_type == LP87565_DEVICE_TYPE_LP87565_Q1) {
191
+	switch (lp87565->dev_type) {
192
+	case LP87565_DEVICE_TYPE_LP87565_Q1:
206193 		min_idx = LP87565_BUCK_10;
207194 		max_idx = LP87565_BUCK_23;
195
+		break;
196
+	case LP87565_DEVICE_TYPE_LP87561_Q1:
197
+		min_idx = LP87565_BUCK_3210;
198
+		max_idx = LP87565_BUCK_3210;
199
+		break;
200
+	default:
201
+		min_idx = LP87565_BUCK_0;
202
+		max_idx = LP87565_BUCK_3;
203
+		break;
208204 	}
209205 
210206 	for (i = min_idx; i <= max_idx; i++) {