From: Arnd Bergmann <arnd@xxxxxxxx>
[ Upstream commit 985b1f596f9ed56f42b8c2280005f943e1434c06 ]
clang points out that doing arithmetic between diffent enums is usually
a mistake:
drivers/leds/leds-lm355x.c:167:28: warning: bitwise operation between different enumeration types ('enum lm355x_tx2' and 'enum lm355x_ntc') [-Wenum-enum-conversion]
reg_val = pdata->pin_tx2 | pdata->ntc_pin;
~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
drivers/leds/leds-lm355x.c:178:28: warning: bitwise operation between different enumeration types ('enum lm355x_tx2' and 'enum lm355x_ntc') [-Wenum-enum-conversion]
reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode;
~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
In this driver, it is intentional, so add a cast to hide the false-positive
warning. It appears to be the only instance of this warning at the moment.
Fixes: b98d13c72592 ("leds: Add new LED driver for lm355x chips")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/leds/leds-lm355x.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/leds/leds-lm355x.c b/drivers/leds/leds-lm355x.c
index 48872997d6b4b..533b255c27cd6 100644
--- a/drivers/leds/leds-lm355x.c
+++ b/drivers/leds/leds-lm355x.c
@@ -177,18 +177,19 @@ static int lm355x_chip_init(struct lm355x_chip_data *chip)
/* input and output pins configuration */
switch (chip->type) {
case CHIP_LM3554:
- reg_val = pdata->pin_tx2 | pdata->ntc_pin;
+ reg_val = (u32)pdata->pin_tx2 | (u32)pdata->ntc_pin;
ret = regmap_update_bits(chip->regmap, 0xE0, 0x28, reg_val);
if (ret < 0)
goto out;
- reg_val = pdata->pass_mode;
+ reg_val = (u32)pdata->pass_mode;
ret = regmap_update_bits(chip->regmap, 0xA0, 0x04, reg_val);
if (ret < 0)
goto out;
break;
case CHIP_LM3556:
- reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode;
+ reg_val = (u32)pdata->pin_tx2 | (u32)pdata->ntc_pin |
+ (u32)pdata->pass_mode;
ret = regmap_update_bits(chip->regmap, 0x0A, 0xC4, reg_val);
if (ret < 0)
goto out;
--
2.25.1
