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authorKim, Milo <Milo.Kim@ti.com>2012-08-21 17:03:58 +0800
committerBryan Wu <bryan.wu@canonical.com>2012-09-11 18:32:41 +0800
commit6f6365fbac2d6bcf6867c633d3ec33af08b5b219 (patch)
tree236524d4c11381a31850871bfb8aaa7ba95502b4 /drivers/leds
parenta39b9854c79cc9ac7b7b6fed58cf07da23f1f41e (diff)
leds-lp5523: change the return type of lp5523_set_mode()
The return value of this function is not handled any place, so make it as void type. And three if-statements are replaced with switch-statements. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-lp5523.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 2fd5689f65c..a14495402cc 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -150,7 +150,7 @@ static inline struct lp5523_chip *led_to_lp5523(struct lp5523_led *led)
leds[led->id]);
}
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
@@ -789,26 +789,28 @@ static void lp5523_unregister_sysfs(struct i2c_client *client)
/*--------------------------------------------------------------*/
/* Set chip operating mode */
/*--------------------------------------------------------------*/
-static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
+static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
{
- int ret = 0;
-
/* if in that mode already do nothing, except for run */
if (mode == engine->mode && mode != LP5523_CMD_RUN)
- return 0;
+ return;
- if (mode == LP5523_CMD_RUN) {
- ret = lp5523_run_program(engine);
- } else if (mode == LP5523_CMD_LOAD) {
+ switch (mode) {
+ case LP5523_CMD_RUN:
+ lp5523_run_program(engine);
+ break;
+ case LP5523_CMD_LOAD:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
- } else if (mode == LP5523_CMD_DISABLED) {
+ break;
+ case LP5523_CMD_DISABLED:
lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+ break;
+ default:
+ return;
}
engine->mode = mode;
-
- return ret;
}
/*--------------------------------------------------------------*/