From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 25 Apr 2018 00:59:23 +0000 (-0700)
Subject: Add optional 49 degrees C temperature offset
X-Git-Url: https://git.sur5r.net/?p=groeck-k10temp;a=commitdiff_plain;h=fd93b8bc15ec768915f5567fc86432d50594e25a

Add optional 49 degrees C temperature offset

If bit 20 of the temperature register is set, there is an additional
temperature offset of 49 degrees C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

diff --git a/k10temp.c b/k10temp.c
index 4cefd7e..e4a179d 100644
--- a/k10temp.c
+++ b/k10temp.c
@@ -130,6 +130,9 @@ static ssize_t temp1_input_show(struct device *dev,
 
 	data->read_tempreg(data->pdev, &regval);
 	temp = (regval >> 21) * 125;
+	/* bit 20 indicates an additional temp offset of 49 degrees C */
+	if (regval & 0x80000)
+		temp -= 49000;
 	if (temp > data->temp_offset)
 		temp -= data->temp_offset;
 	else