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pwm: stm32: Fix build warning with CONFIG_DMA_ENGINE disabled

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Without dmaengine support, we get a harmless warning about an unused
function:

	drivers/pwm/pwm-stm32.c:166:12: error: 'stm32_pwm_capture' defined but not used [-Werror=unused-function]

Changing the #ifdef to an IS_ENABLED() check shuts up that warning and
is slightly nicer to read.

Fixes: 53e38fe73f ("pwm: stm32: Add capture support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Arnd Bergmann 2018-05-25 23:08:30 +02:00 committed by Thierry Reding
parent 91348b1453
commit 414c52b789
1 changed files with 1 additions and 3 deletions
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4
drivers/pwm/pwm-stm32.c
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@ -484,9 +484,7 @@ static int stm32_pwm_apply_locked(struct pwm_chip *chip, struct pwm_device *pwm,
static const struct pwm_ops stm32pwm_ops = { static const struct pwm_ops stm32pwm_ops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.apply = stm32_pwm_apply_locked, .apply = stm32_pwm_apply_locked,
#if IS_ENABLED(CONFIG_DMA_ENGINE) .capture = IS_ENABLED(CONFIG_DMA_ENGINE) ? stm32_pwm_capture : NULL,
.capture = stm32_pwm_capture,
#endif
}; };
static int stm32_pwm_set_breakinput(struct stm32_pwm *priv, static int stm32_pwm_set_breakinput(struct stm32_pwm *priv,