GPIO descriptor fixes (#578)

Drivers/jd9853-module/bindings/jadard,jd9853.yaml

@@ -63,10 +63,6 @@ properties:
     type: phandles
     default: GPIO_PIN_SPEC_NONE
     description: Reset GPIO pin
-  reset-active-high:
-    type: boolean
-    default: false
-    description: Whether the reset pin is active high
   backlight:
     type: phandle
     default: "NULL"

Drivers/jd9853-module/include/drivers/jd9853.h

@@ -27,7 +27,6 @@ struct Jd9853Config {
     uint8_t gamma_curve;
     struct GpioPinSpec pin_dc;
     struct GpioPinSpec pin_reset;
-    bool reset_active_high;
     // Optional reference to this display's backlight device, NULL if none.
     struct Device* backlight;
 };

Drivers/jd9853-module/source/jd9853.cpp

@@ -117,7 +117,8 @@ static error_t start(Device* device) {
         .rgb_ele_order = config->bgr_order ? LCD_RGB_ELEMENT_ORDER_BGR : LCD_RGB_ELEMENT_ORDER_RGB,
         .data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
         .bits_per_pixel = 16,
-        .flags = { .reset_active_high = config->reset_active_high },
+        // JD9853's reset line is fixed active-low in hardware.
+        .flags = { .reset_active_high = false },
         .vendor_config = &vendor_config,
     };