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From:   Stefan Wahren <stefan.wahren@i2se.com>
To:     Eric Anholt <eric@anholt.net>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Jean Delvare <jdelvare@suse.com>,
        Guenter Roeck <linux@roeck-us.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linux-rpi-kernel@lists.infradead.org, linux-hwmon@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Stefan Wahren <stefan.wahren@i2se.com>
Subject: [PATCH] hwmon: rpi: Fix initial notify
Date:   Sun, 11 Nov 2018 13:01:11 +0100
Message-Id: <1541937671-26385-1-git-send-email-stefan.wahren@i2se.com>
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Sender: linux-kernel-owner@vger.kernel.org
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In case an under-voltage happens before probing the driver wont
write the critical warning into the kernel log. So don't init
of last_throttled during probe and fix this issue.

Fixes: 74d1e007915f ("hwmon: Add support for RPi voltage sensor")
Reported-by: "Noralf Trønnes" <noralf@tronnes.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 drivers/hwmon/raspberrypi-hwmon.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/hwmon/raspberrypi-hwmon.c b/drivers/hwmon/raspberrypi-hwmon.c
index be5ba46..0d04572 100644
--- a/drivers/hwmon/raspberrypi-hwmon.c
+++ b/drivers/hwmon/raspberrypi-hwmon.c
@@ -115,7 +115,6 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct rpi_hwmon_data *data;
-	int ret;
 
 	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
@@ -124,11 +123,6 @@ static int rpi_hwmon_probe(struct platform_device *pdev)
 	/* Parent driver assure that firmware is correct */
 	data->fw = dev_get_drvdata(dev->parent);
 
-	/* Init throttled */
-	ret = rpi_firmware_property(data->fw, RPI_FIRMWARE_GET_THROTTLED,
-				    &data->last_throttled,
-				    sizeof(data->last_throttled));
-
 	data->hwmon_dev = devm_hwmon_device_register_with_info(dev, "rpi_volt",
 							       data,
 							       &rpi_chip_info,
-- 
2.7.4