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2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777 
 kernel/drivers/regulator/wm8350-regulator.c
....@@ -1,16 +1,11 @@
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-/*
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- * wm8350.c  --  Voltage and current regulation for the Wolfson WM8350 PMIC
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- *
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- * Copyright 2007, 2008 Wolfson Microelectronics PLC.
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- *
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- * Author: Liam Girdwood
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- *         linux@wolfsonmicro.com
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- *
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- *  This program is free software; you can redistribute  it and/or modify it
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- *  under  the terms of  the GNU General  Public License as published by the
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- *  Free Software Foundation;  either version 2 of the  License, or (at your
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- *  option) any later version.
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- */
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+// SPDX-License-Identifier: GPL-2.0+
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+//
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+// wm8350.c  --  Voltage and current regulation for the Wolfson WM8350 PMIC
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+//
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+// Copyright 2007, 2008 Wolfson Microelectronics PLC.
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+//
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+// Author: Liam Girdwood
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+//         linux@wolfsonmicro.com
149 
1510 #include <linux/module.h>
1611 #include <linux/moduleparam.h>
....@@ -28,7 +23,7 @@
2823 #define WM8350_DCDC_MAX_VSEL 0x66
2924 
3025 /* Microamps */
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-static const int isink_cur[] = {
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+static const unsigned int isink_cur[] = {
3227 	4,
3328 	5,
3429 	6,
....@@ -94,73 +89,6 @@
9489 	187681,
9590 	223191
9691 };
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-
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-static int get_isink_val(int min_uA, int max_uA, u16 *setting)
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-{
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-	int i;
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-
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-	for (i = 0; i < ARRAY_SIZE(isink_cur); i++) {
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-		if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) {
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-			*setting = i;
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-			return 0;
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-		}
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-	}
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-	return -EINVAL;
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-}
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-
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-static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA,
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-	int max_uA)
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-{
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-	struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
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-	int isink = rdev_get_id(rdev);
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-	u16 val, setting;
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-	int ret;
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-
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-	ret = get_isink_val(min_uA, max_uA, &setting);
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-	if (ret != 0)
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-		return ret;
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-
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-	switch (isink) {
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-	case WM8350_ISINK_A:
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-		val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
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-		    ~WM8350_CS1_ISEL_MASK;
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-		wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_A,
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-				 val | setting);
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-		break;
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-	case WM8350_ISINK_B:
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-		val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
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-		    ~WM8350_CS1_ISEL_MASK;
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-		wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_B,
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-				 val | setting);
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-		break;
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-	default:
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-		return -EINVAL;
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-	}
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-
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-	return 0;
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-}
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-
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-static int wm8350_isink_get_current(struct regulator_dev *rdev)
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-{
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-	struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
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-	int isink = rdev_get_id(rdev);
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-	u16 val;
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-
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-	switch (isink) {
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-	case WM8350_ISINK_A:
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-		val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
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-		    WM8350_CS1_ISEL_MASK;
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-		break;
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-	case WM8350_ISINK_B:
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-		val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
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-		    WM8350_CS1_ISEL_MASK;
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-		break;
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-	default:
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-		return 0;
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-	}
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-
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-	return isink_cur[val];
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-}
16492 
16593 /* turn on ISINK followed by DCDC */
16694 static int wm8350_isink_enable(struct regulator_dev *rdev)
....@@ -542,7 +470,7 @@
542470 	return 0;
543471 }
544472 
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-static const struct regulator_linear_range wm8350_ldo_ranges[] = {
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+static const struct linear_range wm8350_ldo_ranges[] = {
546474 	REGULATOR_LINEAR_RANGE(900000, 0, 15, 50000),
547475 	REGULATOR_LINEAR_RANGE(1800000, 16, 31, 100000),
548476 };
....@@ -982,8 +910,8 @@
982910 };
983911 
984912 static const struct regulator_ops wm8350_isink_ops = {
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-	.set_current_limit = wm8350_isink_set_current,
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-	.get_current_limit = wm8350_isink_get_current,
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+	.set_current_limit = regulator_set_current_limit_regmap,
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+	.get_current_limit = regulator_get_current_limit_regmap,
987915 	.enable = wm8350_isink_enable,
988916 	.disable = wm8350_isink_disable,
989917 	.is_enabled = wm8350_isink_is_enabled,
....@@ -1138,6 +1066,10 @@
11381066 		.irq = WM8350_IRQ_CS1,
11391067 		.type = REGULATOR_CURRENT,
11401068 		.owner = THIS_MODULE,
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+		.curr_table = isink_cur,
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+		.n_current_limits = ARRAY_SIZE(isink_cur),
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+		.csel_reg = WM8350_CURRENT_SINK_DRIVER_A,
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+		.csel_mask = WM8350_CS1_ISEL_MASK,
11411073 	 },
11421074 	{
11431075 		.name = "ISINKB",
....@@ -1146,6 +1078,10 @@
11461078 		.irq = WM8350_IRQ_CS2,
11471079 		.type = REGULATOR_CURRENT,
11481080 		.owner = THIS_MODULE,
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+		.curr_table = isink_cur,
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+		.n_current_limits = ARRAY_SIZE(isink_cur),
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+		.csel_reg = WM8350_CURRENT_SINK_DRIVER_B,
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+		.csel_mask = WM8350_CS2_ISEL_MASK,
11491085 	 },
11501086 };
11511087 
....@@ -1153,7 +1089,6 @@
11531089 {
11541090 	struct regulator_dev *rdev = (struct regulator_dev *)data;
11551091 
1156
-	mutex_lock(&rdev->mutex);
11571092 	if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2)
11581093 		regulator_notifier_call_chain(rdev,
11591094 					      REGULATOR_EVENT_REGULATION_OUT,
....@@ -1162,7 +1097,6 @@
11621097 		regulator_notifier_call_chain(rdev,
11631098 					      REGULATOR_EVENT_UNDER_VOLTAGE,
11641099 					      NULL);
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-	mutex_unlock(&rdev->mutex);
11661100 
11671101 	return IRQ_HANDLED;
11681102 }
....@@ -1280,11 +1214,11 @@
12801214 /**
12811215  * wm8350_register_led - Register a WM8350 LED output
12821216  *
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- * @param wm8350 The WM8350 device to configure.
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- * @param lednum LED device index to create.
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- * @param dcdc The DCDC to use for the LED.
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- * @param isink The ISINK to use for the LED.
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- * @param pdata Configuration for the LED.
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+ * @wm8350: The WM8350 device to configure.
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+ * @lednum: LED device index to create.
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+ * @dcdc: The DCDC to use for the LED.
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+ * @isink: The ISINK to use for the LED.
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+ * @pdata: Configuration for the LED.
12881222  *
12891223  * The WM8350 supports the use of an ISINK together with a DCDC to
12901224  * provide a power-efficient LED driver.  This function registers the