]> asedeno.scripts.mit.edu Git - linux.git/commitdiff
hwmon: (lm90) Use HWMON_CHANNEL_INFO macro
authorGuenter Roeck <linux@roeck-us.net>
Sun, 31 Mar 2019 17:53:48 +0000 (10:53 -0700)
committerGuenter Roeck <linux@roeck-us.net>
Tue, 16 Apr 2019 00:19:53 +0000 (17:19 -0700)
The HWMON_CHANNEL_INFO macro simplifies the code, reduces the likelihood
of errors, and makes the code easier to read.

The conversion was done automatically with coccinelle. The semantic patch
used to make this change is as follows.

@r@
initializer list elements;
identifier i;
@@

-u32 i[] = {
-  elements,
-  0
-};

@s@
identifier r.i,j,ty;
@@

-struct hwmon_channel_info j = {
-       .type = ty,
-       .config = i,
-};

@script:ocaml t@
ty << s.ty;
elements << r.elements;
shorter;
elems;
@@

shorter :=
   make_ident (List.hd(List.rev (Str.split (Str.regexp "_") ty)));
elems :=
   make_ident
    (String.concat ","
     (List.map (fun x -> Printf.sprintf "\n\t\t\t   %s" x)
       (Str.split (Str.regexp " , ") elements)))

@@
identifier s.j,t.shorter;
identifier t.elems;
@@

- &j
+ HWMON_CHANNEL_INFO(shorter,elems)

This patch does not introduce functional changes. Many thanks to
Julia Lawall for providing the semantic patch.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/lm90.c

index 480d70a517786ad365061d86695155492353d489..0f9c22b21ffa709bdd0f2f0094d690b577d13f1e 100644 (file)
@@ -1720,16 +1720,6 @@ static void lm90_regulator_disable(void *regulator)
        regulator_disable(regulator);
 }
 
-static const u32 lm90_chip_config[] = {
-       HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL | HWMON_C_ALARMS,
-       0
-};
-
-static const struct hwmon_channel_info lm90_chip_info = {
-       .type = hwmon_chip,
-       .config = lm90_chip_config,
-};
-
 
 static const struct hwmon_ops lm90_ops = {
        .is_visible = lm90_is_visible,
@@ -1792,7 +1782,8 @@ static int lm90_probe(struct i2c_client *client,
        data->chip.ops = &lm90_ops;
        data->chip.info = data->info;
 
-       data->info[0] = &lm90_chip_info;
+       data->info[0] = HWMON_CHANNEL_INFO(chip,
+               HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL | HWMON_C_ALARMS);
        data->info[1] = &data->temp_info;
 
        info = &data->temp_info;