hwmon: (lm90) Introduce capability flag to indicate broken ALERT functionality

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 9df08e1..1913f8a 100644 (file)
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -162,6 +162,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_HAVE_EMERGENCY    (1 << 4) /* 3rd upper (emergency) limit */
 #define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm           */
 #define LM90_HAVE_TEMP3                (1 << 6) /* 3rd temperature sensor      */
+#define LM90_HAVE_BROKEN_ALERT (1 << 7) /* Broken alert                */
 
 /*
  * Driver data (common to all clients)
@@ -200,11 +201,13 @@ struct lm90_params {
 
 static const struct lm90_params lm90_params[] = {
        [adm1032] = {
-               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+                 | LM90_HAVE_BROKEN_ALERT,
                .alert_alarms = 0x7c,
        },
        [adt7461] = {
-               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+                 | LM90_HAVE_BROKEN_ALERT,
                .alert_alarms = 0x7c,
        },
        [lm86] = {
@@ -1361,7 +1364,7 @@ static void lm90_alert(struct i2c_client *client, unsigned int flag)
                /* Disable ALERT# output, because these chips don't implement
                  SMBus alert correctly; they should only hold the alert line
                  low briefly. */
-               if ((data->kind == adm1032 || data->kind == adt7461)
+               if ((data->flags & LM90_HAVE_BROKEN_ALERT)
                 && (alarms & data->alert_alarms)) {
                        dev_dbg(&client->dev, "Disabling ALERT#\n");
                        lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);