remove polarity "hack" for PWM #170

Author: pdp7

source/c_pwm.c

@@ -581,12 +581,11 @@ BBIO_err pwm_start(const char *key, float duty, float freq, int polarity)
         return BBIO_GEN;
     }
 
-//FIXME: polarity set broken in v4.9.x/v4.14.x
-//    err = pwm_set_polarity(key, polarity);
-//    if (err != BBIO_OK) {
-//        syslog(LOG_ERR, "pwm_start: %s couldn't set polarity: %i", key, err);
-//        return err;
-//    }
+    err = pwm_set_polarity(key, polarity);
+    if (err != BBIO_OK) {
+        syslog(LOG_ERR, "pwm_start: %s couldn't set polarity: %i", key, err);
+        return err;
+    }
 
     // Read out current period_ns from the file, in order for it to behave
     // properly