This is a note to let you know that I've just added the patch titled
hwmon: (tps23861) correct shunt LSB values
to the 5.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwmon-tps23861-correct-shunt-lsb-values.patch
and it can be found in the queue-5.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e13d1127241404f1c3eb1379ac4dd100eaf385b4 Mon Sep 17 00:00:00 2001
From: Robert Marko <robert.marko@xxxxxxxxxx>
Date: Thu, 10 Jun 2021 00:07:28 +0200
Subject: hwmon: (tps23861) correct shunt LSB values
From: Robert Marko <robert.marko@xxxxxxxxxx>
commit e13d1127241404f1c3eb1379ac4dd100eaf385b4 upstream.
Current shunt LSB values got reversed during in the
original driver commit.
So, correct the current shunt LSB values according to
the datasheet.
This caused reading slightly skewed current values.
Fixes: fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver")
Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210609220728.499879-3-robert.marko@xxxxxxxxxx
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/tps23861.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/hwmon/tps23861.c
+++ b/drivers/hwmon/tps23861.c
@@ -105,8 +105,8 @@
#define TEMPERATURE_LSB 652 /* 0.652 degrees Celsius */
#define VOLTAGE_LSB 3662 /* 3.662 mV */
#define SHUNT_RESISTOR_DEFAULT 255000 /* 255 mOhm */
-#define CURRENT_LSB_255 62260 /* 62.260 uA */
-#define CURRENT_LSB_250 61039 /* 61.039 uA */
+#define CURRENT_LSB_250 62260 /* 62.260 uA */
+#define CURRENT_LSB_255 61039 /* 61.039 uA */
#define RESISTANCE_LSB 110966 /* 11.0966 Ohm*/
#define RESISTANCE_LSB_LOW 157216 /* 15.7216 Ohm*/
Patches currently in stable-queue which might be from robert.marko@xxxxxxxxxx are
queue-5.12/hwmon-tps23861-set-current-shunt-value.patch
queue-5.12/hwmon-tps23861-correct-shunt-lsb-values.patch
queue-5.12/hwmon-tps23861-define-regmap-max-register.patch
