[PATCH 4.9 072/241] driver: (adm1275) set the m,b and R coefficients correctly for power

From: Greg Kroah-Hartman
Date: Mon Mar 19 2018 - 14:21:13 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Shikhar Dogra <shidogra@xxxxxxxxx>


[ Upstream commit 6faecba0b3da7b617bf72bef422bf0d3bb6dfe7d ]

Seems like coefficient values for m, b and R under power have been
put in the wrong order. Rearranging them properly to get correct
values of coefficients for power.

For specs, please refer to table 7 (page 35) on
http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1075.pdf

Fixes: 904b296f308d ("hwmon: (adm1275) Introduce configuration data structure for coeffcients")
Signed-off-by: Shikhar Dogra <shidogra@xxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/pmbus/adm1275.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -101,8 +101,8 @@ static const struct coefficients adm1075
[0] = { 27169, 0, -1 }, /* voltage */
[1] = { 806, 20475, -1 }, /* current, irange25 */
[2] = { 404, 20475, -1 }, /* current, irange50 */
- [3] = { 0, -1, 8549 }, /* power, irange25 */
- [4] = { 0, -1, 4279 }, /* power, irange50 */
+ [3] = { 8549, 0, -1 }, /* power, irange25 */
+ [4] = { 4279, 0, -1 }, /* power, irange50 */
};

static const struct coefficients adm1275_coefficients[] = {