From e41fae2b1ed8c78283d73651cd65be0228c0dd1c Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 15 Nov 2013 10:40:38 +0100 Subject: [PATCH] hwmon: (lm90) Fix max6696 alarm handling Bit 2 of status register 2 on MAX6696 (external diode 2 open) sets ALERT; the bit thus has to be listed in alert_alarms. Also display a message in the alert handler if the condition is encountered. Even though not all overtemperature conditions cause ALERT to be set, we should not ignore them in the alert handler. Display messages for all out-of-range conditions. Reported-by: Jean Delvare Signed-off-by: Guenter Roeck Cc: stable@vger.kernel.org Signed-off-by: Jean Delvare --- drivers/hwmon/lm90.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index cdff74282955..14e36c114d61 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -278,7 +278,7 @@ static const struct lm90_params lm90_params[] = { [max6696] = { .flags = LM90_HAVE_EMERGENCY | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3, - .alert_alarms = 0x187c, + .alert_alarms = 0x1c7c, .max_convrate = 6, .reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL, }, @@ -1500,19 +1500,22 @@ static void lm90_alert(struct i2c_client *client, unsigned int flag) if ((alarms & 0x7f) == 0 && (alarms2 & 0xfe) == 0) { dev_info(&client->dev, "Everything OK\n"); } else { - if (alarms & 0x61) + if ((alarms & 0x61) || (alarms2 & 0x80)) dev_warn(&client->dev, "temp%d out of range, please check!\n", 1); - if (alarms & 0x1a) + if ((alarms & 0x1a) || (alarms2 & 0x20)) dev_warn(&client->dev, "temp%d out of range, please check!\n", 2); if (alarms & 0x04) dev_warn(&client->dev, "temp%d diode open, please check!\n", 2); - if (alarms2 & 0x18) + if (alarms2 & 0x5a) dev_warn(&client->dev, "temp%d out of range, please check!\n", 3); + if (alarms2 & 0x04) + dev_warn(&client->dev, + "temp%d diode open, please check!\n", 3); /* * Disable ALERT# output, because these chips don't implement -- 2.20.1