linux-kernel - [PATCH 5/6] leds: lp8860: Only unlock in lp8860_unlock

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Message-ID: <20250407183555.409687-5-afd@ti.com>
Date: Mon, 7 Apr 2025 13:35:54 -0500
From: Andrew Davis <afd@...com>
To: Pavel Machek <pavel@...nel.org>, Lee Jones <lee@...nel.org>
CC: <linux-leds@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis
	<afd@...com>
Subject: [PATCH 5/6] leds: lp8860: Only unlock in lp8860_unlock_eeprom()

Locking is a single register write, so no need to have the unlock
function also lock. This removes the need to pass in the option
and reduces the nesting level in the function.

Signed-off-by: Andrew Davis <afd@...com>
---
 drivers/leds/leds-lp8860.c | 48 ++++++++++++++------------------------
 1 file changed, 18 insertions(+), 30 deletions(-)

diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index f913a895d8a97..088610988138f 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -130,39 +130,27 @@ static const struct reg_sequence lp8860_eeprom_disp_regs[] = {
 	{ LP8860_EEPROM_REG_24, 0x3E },
 };
 
-static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock)
+static int lp8860_unlock_eeprom(struct lp8860_led *led)
 {
 	int ret;
 
 	guard(mutex)(&led->lock);
 
-	if (lock == LP8860_UNLOCK_EEPROM) {
-		ret = regmap_write(led->regmap,
-			LP8860_EEPROM_UNLOCK,
-			LP8860_EEPROM_CODE_1);
-		if (ret) {
-			dev_err(&led->client->dev, "EEPROM Unlock failed\n");
-			return ret;
-		}
-
-		ret = regmap_write(led->regmap,
-			LP8860_EEPROM_UNLOCK,
-			LP8860_EEPROM_CODE_2);
-		if (ret) {
-			dev_err(&led->client->dev, "EEPROM Unlock failed\n");
-			return ret;
-		}
-		ret = regmap_write(led->regmap,
-			LP8860_EEPROM_UNLOCK,
-			LP8860_EEPROM_CODE_3);
-		if (ret) {
-			dev_err(&led->client->dev, "EEPROM Unlock failed\n");
-			return ret;
-		}
-	} else {
-		ret = regmap_write(led->regmap,
-			LP8860_EEPROM_UNLOCK,
-			LP8860_LOCK_EEPROM);
+	ret = regmap_write(led->regmap, LP8860_EEPROM_UNLOCK, LP8860_EEPROM_CODE_1);
+	if (ret) {
+		dev_err(&led->client->dev, "EEPROM Unlock failed\n");
+		return ret;
+	}
+
+	ret = regmap_write(led->regmap, LP8860_EEPROM_UNLOCK, LP8860_EEPROM_CODE_2);
+	if (ret) {
+		dev_err(&led->client->dev, "EEPROM Unlock failed\n");
+		return ret;
+	}
+	ret = regmap_write(led->regmap, LP8860_EEPROM_UNLOCK, LP8860_EEPROM_CODE_3);
+	if (ret) {
+		dev_err(&led->client->dev, "EEPROM Unlock failed\n");
+		return ret;
 	}
 
 	return ret;
@@ -241,7 +229,7 @@ static int lp8860_init(struct lp8860_led *led)
 	if (ret)
 		goto out;
 
-	ret = lp8860_unlock_eeprom(led, LP8860_UNLOCK_EEPROM);
+	ret = lp8860_unlock_eeprom(led);
 	if (ret) {
 		dev_err(&led->client->dev, "Failed unlocking EEPROM\n");
 		goto out;
@@ -254,7 +242,7 @@ static int lp8860_init(struct lp8860_led *led)
 		goto out;
 	}
 
-	ret = lp8860_unlock_eeprom(led, LP8860_LOCK_EEPROM);
+	ret = regmap_write(led->regmap, LP8860_EEPROM_UNLOCK, LP8860_LOCK_EEPROM);
 	if (ret)
 		goto out;
 
-- 
2.39.2