hwmon: (lm90) Introduce chip parameter structure

Instead of using switch/case and if statements in probe, define chip specific
functionality in a parameter structure array.

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

1 files changed, 60 insertions, 32 deletions

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 302d9eb9f275..9df08e1cc518 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -190,6 +190,63 @@ static const struct i2c_device_id lm90_id[] = {
 MODULE_DEVICE_TABLE(i2c, lm90_id);
 
 /*
+ * chip type specific parameters
+ */
+struct lm90_params {
+        u32 flags;              /* Capabilities */
+        u16 alert_alarms;       /* Which alarm bits trigger ALERT# */
+                                /* Upper 8 bits for max6695/96 */
+};
+
+static const struct lm90_params lm90_params[] = {
+        [adm1032] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7c,
+        },
+        [adt7461] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7c,
+        },
+        [lm86] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7b,
+        },
+        [lm90] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7b,
+        },
+        [lm99] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7b,
+        },
+        [max6646] = {
+                .flags = LM90_HAVE_LOCAL_EXT,
+                .alert_alarms = 0x7c,
+        },
+        [max6657] = {
+                .flags = LM90_HAVE_LOCAL_EXT,
+                .alert_alarms = 0x7c,
+        },
+        [max6659] = {
+                .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY,
+                .alert_alarms = 0x7c,
+        },
+        [max6680] = {
+                .flags = LM90_HAVE_OFFSET,
+                .alert_alarms = 0x7c,
+        },
+        [max6696] = {
+                .flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY
+                  | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
+                .alert_alarms = 0x187c,
+        },
+        [w83l771] = {
+                .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+                .alert_alarms = 0x7c,
+        },
+};
+
+/*
  * Client data (each client gets its own)
  */
 
@@ -199,7 +256,7 @@ struct lm90_data {
         char valid; /* zero until following fields are valid */
         unsigned long last_updated; /* in jiffies */
         int kind;
-        int flags;
+        u32 flags;
 
         u8 config_orig;         /* Original configuration register value */
         u16 alert_alarms;       /* Which alarm bits trigger ALERT# */
@@ -1201,39 +1258,10 @@ static int lm90_probe(struct i2c_client *new_client,
 
         /* Different devices have different alarm bits triggering the
          * ALERT# output */
-        switch (data->kind) {
-        case lm90:
-        case lm99:
-        case lm86:
-                data->alert_alarms = 0x7b;
-                break;
-        case max6696:
-                data->alert_alarms = 0x187c;
-                break;
-        default:
-                data->alert_alarms = 0x7c;
-                break;
-        }
+        data->alert_alarms = lm90_params[data->kind].alert_alarms;
 
         /* Set chip capabilities */
-        if (data->kind != max6657 && data->kind != max6659
-            && data->kind != max6646 && data->kind != max6696)
-                data->flags |= LM90_HAVE_OFFSET;
-
-        if (data->kind == max6657 || data->kind == max6659
-            || data->kind == max6646 || data->kind == max6696)
-                data->flags |= LM90_HAVE_LOCAL_EXT;
-
-        if (data->kind != max6657 && data->kind != max6659
-            && data->kind != max6646 && data->kind != max6680
-            && data->kind != max6696)
-                data->flags |= LM90_HAVE_REM_LIMIT_EXT;
-
-        if (data->kind == max6659 || data->kind == max6696)
-                data->flags |= LM90_HAVE_EMERGENCY;
-
-        if (data->kind == max6696)
-                data->flags |= LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3;
+        data->flags = lm90_params[data->kind].flags;
 
         /* Initialize the LM90 chip */
         lm90_init_client(new_client);