[NUC472/M453] Fix pwmout power-down condition

Author: ccli8

targets/TARGET_NUVOTON/TARGET_M451/pwmout_api.c

@@ -99,11 +99,9 @@ void pwmout_init(pwmout_t* obj, PinName pin)
 
     ((struct nu_pwm_var *) modinit->var)->en_msk |= 1 << chn;
 
-    if (((struct nu_pwm_var *) modinit->var)->en_msk) {
-        // Mark this module to be inited.
-        int i = modinit - pwm_modinit_tab;
-        pwm_modinit_mask |= 1 << i;
-    }
+    // Mark this module to be inited.
+    int i = modinit - pwm_modinit_tab;
+    pwm_modinit_mask |= 1 << i;
 }
 
 void pwmout_free(pwmout_t* obj)
@@ -122,11 +120,9 @@ void pwmout_free(pwmout_t* obj)
         CLK_DisableModuleClock(modinit->clkidx);
     }
 
-    if (((struct nu_pwm_var *) modinit->var)->en_msk == 0) {
-        // Mark this module to be deinited.
-        int i = modinit - pwm_modinit_tab;
-        pwm_modinit_mask &= ~(1 << i);
-    }
+    // Mark this module to be deinited.
+    int i = modinit - pwm_modinit_tab;
+    pwm_modinit_mask &= ~(1 << i);
 }
 
 void pwmout_write(pwmout_t* obj, float value)

targets/TARGET_NUVOTON/TARGET_NUC472/pwmout_api.c

@@ -105,11 +105,9 @@ void pwmout_init(pwmout_t* obj, PinName pin)
 
     ((struct nu_pwm_var *) modinit->var)->en_msk |= 1 << chn;
 
-    if (((struct nu_pwm_var *) modinit->var)->en_msk) {
-        // Mark this module to be inited.
-        int i = modinit - pwm_modinit_tab;
-        pwm_modinit_mask |= 1 << i;
-    }
+    // Mark this module to be inited.
+    int i = modinit - pwm_modinit_tab;
+    pwm_modinit_mask |= 1 << i;
 }
 
 void pwmout_free(pwmout_t* obj)
@@ -145,11 +143,9 @@ void pwmout_free(pwmout_t* obj)
         }
     }
 
-    if (((struct nu_pwm_var *) modinit->var)->en_msk == 0) {
-        // Mark this module to be deinited.
-        int i = modinit - pwm_modinit_tab;
-        pwm_modinit_mask &= ~(1 << i);
-    }
+    // Mark this module to be deinited.
+    int i = modinit - pwm_modinit_tab;
+    pwm_modinit_mask &= ~(1 << i);
 }
 
 void pwmout_write(pwmout_t* obj, float value)