linux-kernel - [PATCH 1/2] Clear sensor data after chip write

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Message-Id: <20210201195929.1200-2-erik.rosen@metormote.com>
Date:   Mon,  1 Feb 2021 20:59:28 +0100
From:   Erik Rosen <erik.rosen@...ormote.com>
To:     linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>
Cc:     Erik Rosen <erik.rosen@...ormote.com>
Subject: [PATCH 1/2] Clear sensor data after chip write

Set the sensor->data field to -ENODATA to force a chip access next time
the sensor value is read.

Signed-off-by: Erik Rosen <erik.rosen@...ormote.com>
---
 drivers/hwmon/pmbus/pmbus_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 192442b3b7a2..e27f23eee1e3 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -974,7 +974,7 @@ static ssize_t pmbus_set_sensor(struct device *dev,
 	if (ret < 0)
 		rv = ret;
 	else
-		sensor->data = regval;
+		sensor->data = -ENODATA;
 	mutex_unlock(&data->update_lock);
 	return rv;
 }
-- 
2.20.1