linux-kernel - [PATCH 2/2] hwmon: (tmp102): add vcc regulator support

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Message-Id: <20250417180426.3872314-2-peter@korsgaard.com>
Date: Thu, 17 Apr 2025 20:04:26 +0200
From: Peter Korsgaard <peter@...sgaard.com>
To: Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>
Cc: Peter Korsgaard <peter@...sgaard.com>,
	linux-hwmon@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] hwmon: (tmp102): add vcc regulator support

Make it optional for backwards compatibility.

Signed-off-by: Peter Korsgaard <peter@...sgaard.com>
---
 drivers/hwmon/tmp102.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 8af44a33055f3..a02daa496c9c4 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -16,6 +16,7 @@
 #include <linux/device.h>
 #include <linux/jiffies.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 #include <linux/of.h>
 
 #define	DRIVER_NAME "tmp102"
@@ -204,6 +205,10 @@ static int tmp102_probe(struct i2c_client *client)
 		return -ENODEV;
 	}
 
+	err = devm_regulator_get_enable_optional(dev, "vcc");
+	if (err < 0 && err != -ENODEV)
+		return dev_err_probe(dev, err, "Failed to enable regulator\n");
+
 	tmp102 = devm_kzalloc(dev, sizeof(*tmp102), GFP_KERNEL);
 	if (!tmp102)
 		return -ENOMEM;
-- 
2.39.5