Use NULL for deinited DigitalInOut

tannewt · tannewt · commit 2d579cc9953a · 2020-06-26T12:33:50.000-07:00
This fixes a Display issue where no backlight pin is given but it's
still deinitialized.
diff --git a/ports/esp32s2/common-hal/digitalio/DigitalInOut.c b/ports/esp32s2/common-hal/digitalio/DigitalInOut.c
@@ -46,7 +46,7 @@ digitalinout_result_t common_hal_digitalio_digitalinout_construct(
 }
 
 bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t *self) {
-    return self->pin == mp_const_none;
+    return self->pin == NULL;
 }
 
 void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self) {
@@ -55,7 +55,7 @@ void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self
     }
 
     reset_pin_number(self->pin->number);
-    self->pin = mp_const_none;
+    self->pin = NULL;
 }
 
 void common_hal_digitalio_digitalinout_switch_to_input(
diff --git a/ports/litex/common-hal/digitalio/DigitalInOut.c b/ports/litex/common-hal/digitalio/DigitalInOut.c
@@ -46,7 +46,7 @@ digitalinout_result_t common_hal_digitalio_digitalinout_construct(
 }
 
 bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t *self) {
-    return self->pin == mp_const_none;
+    return self->pin == NULL;
 }
 
 void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self) {
@@ -55,7 +55,7 @@ void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self
     }
 
     // reset_pin_number(0, self->pin->number);
-    self->pin = mp_const_none;
+    self->pin = NULL;
 }
 
 void common_hal_digitalio_digitalinout_switch_to_input(

Original file line number	Diff line number	Diff line change
`@@ -46,7 +46,7 @@ digitalinout_result_t common_hal_digitalio_digitalinout_construct(`
`46`	`46`	`}`
`47`	`47`
`48`	`48`	`bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t *self) {`
`49`		`- return self->pin == mp_const_none;`
	`49`	`+ return self->pin == NULL;`
`50`	`50`	`}`
`51`	`51`
`52`	`52`	`void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self) {`
`@@ -55,7 +55,7 @@ void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t *self`
`55`	`55`	`}`
`56`	`56`
`57`	`57`	`reset_pin_number(self->pin->number);`
`58`		`- self->pin = mp_const_none;`
	`58`	`+ self->pin = NULL;`
`59`	`59`	`}`
`60`	`60`
`61`	`61`	`void common_hal_digitalio_digitalinout_switch_to_input(`