From 072de836f53be56a70cecf70b43ae43b7ce17376 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 10:08:36 +0000
Subject: [PATCH] mk-rootfs.sh

---
 kernel/drivers/regulator/lp8755.c |  103 +++++++++++++++------------------------------------
 1 files changed, 31 insertions(+), 72 deletions(-)

diff --git a/kernel/drivers/regulator/lp8755.c b/kernel/drivers/regulator/lp8755.c
index 244822b..13c5357 100644
--- a/kernel/drivers/regulator/lp8755.c
+++ b/kernel/drivers/regulator/lp8755.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * LP8755 High Performance Power Management Unit : System Interface Driver
  * (based on rev. 0.26)
  * Copyright 2012 Texas Instruments
  *
  * Author: Daniel(Geon Si) Jeong <daniel.jeong@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
@@ -53,53 +49,15 @@
 	struct regulator_dev *rdev[LP8755_BUCK_MAX];
 };
 
-/**
- *lp8755_read : read a single register value from lp8755.
- *@pchip : device to read from
- *@reg   : register to read from
- *@val   : pointer to store read value
- */
-static int lp8755_read(struct lp8755_chip *pchip, unsigned int reg,
-		       unsigned int *val)
-{
-	return regmap_read(pchip->regmap, reg, val);
-}
-
-/**
- *lp8755_write : write a single register value to lp8755.
- *@pchip : device to write to
- *@reg   : register to write to
- *@val   : value to be written
- */
-static int lp8755_write(struct lp8755_chip *pchip, unsigned int reg,
-			unsigned int val)
-{
-	return regmap_write(pchip->regmap, reg, val);
-}
-
-/**
- *lp8755_update_bits : set the values of bit fields in lp8755 register.
- *@pchip : device to read from
- *@reg   : register to update
- *@mask  : bitmask to be changed
- *@val   : value for bitmask
- */
-static int lp8755_update_bits(struct lp8755_chip *pchip, unsigned int reg,
-			      unsigned int mask, unsigned int val)
-{
-	return regmap_update_bits(pchip->regmap, reg, mask, val);
-}
-
 static int lp8755_buck_enable_time(struct regulator_dev *rdev)
 {
 	int ret;
 	unsigned int regval;
 	enum lp8755_bucks id = rdev_get_id(rdev);
-	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
 
-	ret = lp8755_read(pchip, 0x12 + id, &regval);
+	ret = regmap_read(rdev->regmap, 0x12 + id, &regval);
 	if (ret < 0) {
-		dev_err(pchip->dev, "i2c access error %s\n", __func__);
+		dev_err(&rdev->dev, "i2c access error %s\n", __func__);
 		return ret;
 	}
 	return (regval & 0xff) * 100;
@@ -119,17 +77,17 @@
 		break;
 	case REGULATOR_MODE_NORMAL:
 		/* enable automatic pwm/pfm mode */
-		ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x00);
+		ret = regmap_update_bits(rdev->regmap, 0x08 + id, 0x20, 0x00);
 		if (ret < 0)
 			goto err_i2c;
 		break;
 	case REGULATOR_MODE_IDLE:
 		/* enable automatic pwm/pfm/lppfm mode */
-		ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x20);
+		ret = regmap_update_bits(rdev->regmap, 0x08 + id, 0x20, 0x20);
 		if (ret < 0)
 			goto err_i2c;
 
-		ret = lp8755_update_bits(pchip, 0x10, 0x01, 0x01);
+		ret = regmap_update_bits(rdev->regmap, 0x10, 0x01, 0x01);
 		if (ret < 0)
 			goto err_i2c;
 		break;
@@ -139,12 +97,12 @@
 		regbval = (0x01 << id);
 	}
 
-	ret = lp8755_update_bits(pchip, 0x06, 0x01 << id, regbval);
+	ret = regmap_update_bits(rdev->regmap, 0x06, 0x01 << id, regbval);
 	if (ret < 0)
 		goto err_i2c;
 	return ret;
 err_i2c:
-	dev_err(pchip->dev, "i2c access error %s\n", __func__);
+	dev_err(&rdev->dev, "i2c access error %s\n", __func__);
 	return ret;
 }
 
@@ -153,9 +111,8 @@
 	int ret;
 	unsigned int regval;
 	enum lp8755_bucks id = rdev_get_id(rdev);
-	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
 
-	ret = lp8755_read(pchip, 0x06, &regval);
+	ret = regmap_read(rdev->regmap, 0x06, &regval);
 	if (ret < 0)
 		goto err_i2c;
 
@@ -163,7 +120,7 @@
 	if (regval & (0x01 << id))
 		return REGULATOR_MODE_FAST;
 
-	ret = lp8755_read(pchip, 0x08 + id, &regval);
+	ret = regmap_read(rdev->regmap, 0x08 + id, &regval);
 	if (ret < 0)
 		goto err_i2c;
 
@@ -175,7 +132,7 @@
 	return REGULATOR_MODE_NORMAL;
 
 err_i2c:
-	dev_err(pchip->dev, "i2c access error %s\n", __func__);
+	dev_err(&rdev->dev, "i2c access error %s\n", __func__);
 	return 0;
 }
 
@@ -184,7 +141,6 @@
 	int ret;
 	unsigned int regval = 0x00;
 	enum lp8755_bucks id = rdev_get_id(rdev);
-	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);
 
 	/* uV/us */
 	switch (ramp) {
@@ -213,17 +169,17 @@
 		regval = 0x00;
 		break;
 	default:
-		dev_err(pchip->dev,
+		dev_err(&rdev->dev,
 			"Not supported ramp value %d %s\n", ramp, __func__);
 		return -EINVAL;
 	}
 
-	ret = lp8755_update_bits(pchip, 0x07 + id, 0x07, regval);
+	ret = regmap_update_bits(rdev->regmap, 0x07 + id, 0x07, regval);
 	if (ret < 0)
 		goto err_i2c;
 	return ret;
 err_i2c:
-	dev_err(pchip->dev, "i2c access error %s\n", __func__);
+	dev_err(&rdev->dev, "i2c access error %s\n", __func__);
 	return ret;
 }
 
@@ -282,7 +238,7 @@
 	struct lp8755_platform_data *pdata = pchip->pdata;
 
 	/* read back  muti-phase configuration */
-	ret = lp8755_read(pchip, 0x3D, &regval);
+	ret = regmap_read(pchip->regmap, 0x3D, &regval);
 	if (ret < 0)
 		goto out_i2c_error;
 	pchip->mphase = regval & 0x0F;
@@ -315,7 +271,7 @@
 	.vsel_mask = LP8755_BUCK_VOUT_M,\
 }
 
-static struct regulator_desc lp8755_regulators[] = {
+static const struct regulator_desc lp8755_regulators[] = {
 	lp8755_buck_desc(0),
 	lp8755_buck_desc(1),
 	lp8755_buck_desc(2),
@@ -360,11 +316,11 @@
 	struct lp8755_chip *pchip = data;
 
 	/* read flag0 register */
-	ret = lp8755_read(pchip, 0x0D, &flag0);
+	ret = regmap_read(pchip->regmap, 0x0D, &flag0);
 	if (ret < 0)
 		goto err_i2c;
 	/* clear flag register to pull up int. pin */
-	ret = lp8755_write(pchip, 0x0D, 0x00);
+	ret = regmap_write(pchip->regmap, 0x0D, 0x00);
 	if (ret < 0)
 		goto err_i2c;
 
@@ -372,35 +328,38 @@
 	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
 		if ((flag0 & (0x4 << icnt))
 		    && (pchip->irqmask & (0x04 << icnt))
-		    && (pchip->rdev[icnt] != NULL))
+		    && (pchip->rdev[icnt] != NULL)) {
 			regulator_notifier_call_chain(pchip->rdev[icnt],
 						      LP8755_EVENT_PWR_FAULT,
 						      NULL);
+		}
 
 	/* read flag1 register */
-	ret = lp8755_read(pchip, 0x0E, &flag1);
+	ret = regmap_read(pchip->regmap, 0x0E, &flag1);
 	if (ret < 0)
 		goto err_i2c;
 	/* clear flag register to pull up int. pin */
-	ret = lp8755_write(pchip, 0x0E, 0x00);
+	ret = regmap_write(pchip->regmap, 0x0E, 0x00);
 	if (ret < 0)
 		goto err_i2c;
 
-	/* send OCP event to all regualtor devices */
+	/* send OCP event to all regulator devices */
 	if ((flag1 & 0x01) && (pchip->irqmask & 0x01))
 		for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-			if (pchip->rdev[icnt] != NULL)
+			if (pchip->rdev[icnt] != NULL) {
 				regulator_notifier_call_chain(pchip->rdev[icnt],
 							      LP8755_EVENT_OCP,
 							      NULL);
+			}
 
-	/* send OVP event to all regualtor devices */
+	/* send OVP event to all regulator devices */
 	if ((flag1 & 0x02) && (pchip->irqmask & 0x02))
 		for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-			if (pchip->rdev[icnt] != NULL)
+			if (pchip->rdev[icnt] != NULL) {
 				regulator_notifier_call_chain(pchip->rdev[icnt],
 							      LP8755_EVENT_OVP,
 							      NULL);
+			}
 	return IRQ_HANDLED;
 
 err_i2c:
@@ -418,7 +377,7 @@
 		return 0;
 	}
 
-	ret = lp8755_read(pchip, 0x0F, &regval);
+	ret = regmap_read(pchip->regmap, 0x0F, &regval);
 	if (ret < 0) {
 		dev_err(pchip->dev, "i2c access error %s\n", __func__);
 		return ret;
@@ -497,7 +456,7 @@
 err:
 	/* output disable */
 	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-		lp8755_write(pchip, icnt, 0x00);
+		regmap_write(pchip->regmap, icnt, 0x00);
 
 	return ret;
 }
@@ -508,7 +467,7 @@
 	struct lp8755_chip *pchip = i2c_get_clientdata(client);
 
 	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-		lp8755_write(pchip, icnt, 0x00);
+		regmap_write(pchip->regmap, icnt, 0x00);
 
 	return 0;
 }

--
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