This is a note to let you know that I've just added the patch titled
hwmon: (lm90) Do not report 'busy' status bit as alarm
to the 4.14-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-lm90-do-not-report-busy-status-bit-as-alarm.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cdc5287acad9ede121924a9c9313544b80d15842 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@xxxxxxxxxxxx>
Date: Fri, 3 Dec 2021 13:42:22 -0800
Subject: hwmon: (lm90) Do not report 'busy' status bit as alarm
From: Guenter Roeck <linux@xxxxxxxxxxxx>
commit cdc5287acad9ede121924a9c9313544b80d15842 upstream.
Bit 7 of the status register indicates that the chip is busy
doing a conversion. It does not indicate an alarm status.
Stop reporting it as alarm status bit.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/lm90.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -197,6 +197,7 @@ enum chips { lm90, adm1032, lm99, lm86,
#define LM90_STATUS_RHIGH (1 << 4) /* remote high temp limit tripped */
#define LM90_STATUS_LLOW (1 << 5) /* local low temp limit tripped */
#define LM90_STATUS_LHIGH (1 << 6) /* local high temp limit tripped */
+#define LM90_STATUS_BUSY (1 << 7) /* conversion is ongoing */
#define MAX6696_STATUS2_R2THRM (1 << 1) /* remote2 THERM limit tripped */
#define MAX6696_STATUS2_R2OPEN (1 << 2) /* remote2 is an open circuit */
@@ -786,7 +787,7 @@ static int lm90_update_device(struct dev
val = lm90_read_reg(client, LM90_REG_R_STATUS);
if (val < 0)
return val;
- data->alarms = val; /* lower 8 bit of alarms */
+ data->alarms = val & ~LM90_STATUS_BUSY;
if (data->kind == max6696) {
val = lm90_select_remote_channel(client, data, 1);
Patches currently in stable-queue which might be from linux@xxxxxxxxxxxx are
queue-4.14/hwmon-lm90-fix-usage-of-config2-register-in-detect-f.patch
queue-4.14/hwmon-lm90-do-not-report-busy-status-bit-as-alarm.patch
