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Diffstat (limited to 'include/linux/pwm.h')
-rw-r--r--include/linux/pwm.h42
1 files changed, 0 insertions, 42 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 56518adc31dd..d5199b507d79 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -349,42 +349,6 @@ static inline int pwm_config(struct pwm_device *pwm, int duty_ns,
}
/**
- * pwm_set_polarity() - configure the polarity of a PWM signal
- * @pwm: PWM device
- * @polarity: new polarity of the PWM signal
- *
- * Note that the polarity cannot be configured while the PWM device is
- * enabled.
- *
- * Returns: 0 on success or a negative error code on failure.
- */
-static inline int pwm_set_polarity(struct pwm_device *pwm,
- enum pwm_polarity polarity)
-{
- struct pwm_state state;
-
- if (!pwm)
- return -EINVAL;
-
- pwm_get_state(pwm, &state);
- if (state.polarity == polarity)
- return 0;
-
- /*
- * Changing the polarity of a running PWM without adjusting the
- * dutycycle/period value is a bit risky (can introduce glitches).
- * Return -EBUSY in this case.
- * Note that this is allowed when using pwm_apply_state() because
- * the user specifies all the parameters.
- */
- if (state.enabled)
- return -EBUSY;
-
- state.polarity = polarity;
- return pwm_apply_state(pwm, &state);
-}
-
-/**
* pwm_enable() - start a PWM output toggling
* @pwm: PWM device
*
@@ -483,12 +447,6 @@ static inline int pwm_capture(struct pwm_device *pwm,
return -EINVAL;
}
-static inline int pwm_set_polarity(struct pwm_device *pwm,
- enum pwm_polarity polarity)
-{
- return -ENOTSUPP;
-}
-
static inline int pwm_enable(struct pwm_device *pwm)
{
return -EINVAL;