diff mbox series

[16/17] hwmon: (tmp108) Use HWMON_CHANNEL_INFO macro

Message ID 1554135577-11889-17-git-send-email-linux@roeck-us.net (mailing list archive)
State Accepted
Headers show
Series hwmon: Use HWMON_CHANNEL_INFO macro | expand

Commit Message

Guenter Roeck April 1, 2019, 4:19 p.m. UTC 
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/tmp108.c | 29 ++++++-----------------------
 1 file changed, 6 insertions(+), 23 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hwmon/tmp108.c b/drivers/hwmon/tmp108.c
index 429bfeae4ca8..2447af704424 100644
--- a/drivers/hwmon/tmp108.c
+++ b/drivers/hwmon/tmp108.c
@@ -281,30 +281,13 @@  static umode_t tmp108_is_visible(const void *data, enum hwmon_sensor_types type,
 	}
 }
 
-static u32 tmp108_chip_config[] = {
-	HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
-	0
-};
-
-static const struct hwmon_channel_info tmp108_chip = {
-	.type = hwmon_chip,
-	.config = tmp108_chip_config,
-};
-
-static u32 tmp108_temp_config[] = {
-	HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN | HWMON_T_MIN_HYST
-		| HWMON_T_MAX_HYST | HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM,
-	0
-};
-
-static const struct hwmon_channel_info tmp108_temp = {
-	.type = hwmon_temp,
-	.config = tmp108_temp_config,
-};
-
 static const struct hwmon_channel_info *tmp108_info[] = {
-	&tmp108_chip,
-	&tmp108_temp,
+	HWMON_CHANNEL_INFO(chip,
+			   HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+			   HWMON_T_MIN_HYST | HWMON_T_MAX_HYST |
+			   HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM),
 	NULL
 };