diff --git a/Documentation/README.html b/Documentation/README.html
index 7c44a55916..84a0b18c43 100644
--- a/Documentation/README.html
+++ b/Documentation/README.html
@@ -288,6 +288,8 @@ nuttx/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/stm32f429i-disco/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- stm32f746g-disco/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/stm32f746g-disco/README.txt" target="_blank"><b><i>README.txt</i></b></a>
+ |   |- stm32f769i-disco/
+ |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/stm32f769i-disco/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- stm32l476-mdk/
  |   |   `- <a href="https://bitbucket.org/nuttx/nuttx/src/master/configs/stm32l476vg-mdk/README.txt" target="_blank"><b><i>README.txt</i></b></a>
  |   |- stm32l476vg-disco/
diff --git a/README.txt b/README.txt
index 42d51047c5..f069a7ba20 100644
--- a/README.txt
+++ b/README.txt
@@ -1827,6 +1827,8 @@ nuttx/
  |   |   `- README.txt
  |   |- stm32f746g-disco/
  |   |   `- README.txt
+ |   |- stm32f769i-disco/
+ |   |   `- README.txt
  |   |- stm32l476-mdk/
  |   |   `- README.txt
  |   |- stm32l476vg-disco/
diff --git a/arch/arm/include/stm32f7/ltdc.h b/arch/arm/include/stm32f7/ltdc.h
index ef5fa17f24..0b1e509916 100755
--- a/arch/arm/include/stm32f7/ltdc.h
+++ b/arch/arm/include/stm32f7/ltdc.h
@@ -114,9 +114,7 @@ struct ltdc_area_s
 
 struct ltdc_layer_s
 {
-
-  /*
-   * Name: getvideoinfo
+  /* Name: getvideoinfo
    *
    * Description:
    *   Get video information about the layer
@@ -128,13 +126,12 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getvideoinfo)(FAR struct ltdc_layer_s *layer,
                     FAR struct fb_videoinfo_s *vinfo);
 
-  /*
-   * Name: getplaneinfo
+  /* Name: getplaneinfo
    *
    * Description:
    *   Get plane information about the layer
@@ -147,13 +144,12 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getplaneinfo)(FAR struct ltdc_layer_s *layer, int planeno,
                       FAR struct fb_planeinfo_s *pinfo);
 
-  /*
-   * Name: getlid
+  /* Name: getlid
    *
    * Description:
    *   Get a specific layer identifier.
@@ -168,13 +164,12 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getlid)(FAR struct ltdc_layer_s *layer, int *lid, uint32_t flag);
 
 #ifdef CONFIG_FB_CMAP
-  /*
-   * Name: setclut
+  /* Name: setclut
    *
    * Description:
    *   Configure layer clut (color lookup table).
@@ -190,13 +185,12 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*setclut)(FAR struct ltdc_layer_s *layer,
                     const FAR struct fb_cmap_s *cmap);
 
-  /*
-   * Name: getclut
+  /* Name: getclut
    *
    * Description:
    *   Get configured layer clut (color lookup table).
@@ -209,13 +203,12 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getclut)(FAR struct ltdc_layer_s *layer, FAR struct fb_cmap_s *cmap);
 #endif
 
-  /*
-   * Name: setcolor
+  /* Name: setcolor
    *
    * Description:
    *   Configure layer color for the non active layer area.
@@ -229,12 +222,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*setcolor)(FAR struct ltdc_layer_s *layer, uint32_t argb);
 
-  /*
-   * Name: getcolor
+  /* Name: getcolor
    *
    * Description:
    *   Get configured layer color for the non active layer area.
@@ -246,12 +238,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getcolor)(FAR struct ltdc_layer_s *layer, uint32_t *argb);
 
-  /*
-   * Name: setcolorkey
+  /* Name: setcolorkey
    *
    * Description:
    *   Configure the layer color key (chromakey) for transparence.
@@ -265,12 +256,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*setcolorkey)(FAR struct ltdc_layer_s *layer, uint32_t rgb);
 
-  /*
-   * Name: getcolorkey
+  /* Name: getcolorkey
    *
    * Description:
    *   Get the configured layer color key (chromakey) for transparence.
@@ -282,12 +272,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error   - -EINVAL
-   *
    */
+
   int (*getcolorkey)(FAR struct ltdc_layer_s *layer, uint32_t *rgb);
 
-  /*
-   * Name: setalpha
+  /* Name: setalpha
    *
    * Description:
    *   Configure layer alpha value factor into blend operation.
@@ -305,12 +294,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error - -EINVAL
-   *
    */
+
   int (*setalpha)(FAR struct ltdc_layer_s *layer, uint8_t alpha);
 
-  /*
-   * Name: getalpha
+  /* Name: getalpha
    *
    * Description:
    *   Get configured layer alpha value factor for blend operation.
@@ -322,12 +310,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error - -EINVAL
-   *
    */
+
   int (*getalpha)(FAR struct ltdc_layer_s *layer, uint8_t *alpha);
 
-  /*
-   * Name: setblendmode
+  /* Name: setblendmode
    *
    * Description:
    *   Configure blend mode of the layer.
@@ -363,12 +350,11 @@ struct ltdc_layer_s
    *     Informs the driver to use the pixel alpha value of the subjacent layer
    *     instead the constant alpha value. This is only useful for ARGB8888
    *     color format.
-   *
    */
+
   int (*setblendmode)(FAR struct ltdc_layer_s *layer, uint32_t mode);
 
-  /*
-   * Name: getblendmode
+  /* Name: getblendmode
    *
    * Description:
    *   Get configured blend mode of the layer.
@@ -380,12 +366,11 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error - -EINVAL
-   *
    */
+
   int (*getblendmode)(FAR struct ltdc_layer_s *layer, uint32_t *mode);
 
-  /*
-   * Name: setarea
+  /* Name: setarea
    *
    * Description:
    *    Configure visible layer area and the reference position of the first
@@ -413,15 +398,14 @@ struct ltdc_layer_s
    *   If the srcxpos and srcypos unequal the xpos and ypos of the coord
    *   structure this acts like moving the visible area to another position on
    *   the screen during the next update operation.
-   *
    */
+
   int (*setarea)(FAR struct ltdc_layer_s *layer,
                   FAR const struct ltdc_area_s *area,
                   fb_coord_t srcxpos,
                   fb_coord_t srcypos);
 
-  /*
-   * Name: getarea
+  /* Name: getarea
    *
    * Description:
    *    Get configured visible layer area.
@@ -435,15 +419,14 @@ struct ltdc_layer_s
    * Return:
    *   On success - OK
    *   On error - -EINVAL
-   *
    */
+
   int (*getarea)(FAR struct ltdc_layer_s *layer,
                   FAR struct ltdc_area_s *area,
                   fb_coord_t *srcxpos,
                   fb_coord_t *srcypos);
 
-  /*
-   * Name: update
+  /* Name: update
    *
    * Description:
    *   Update current layer settings and make changes visible.
@@ -478,13 +461,12 @@ struct ltdc_layer_s
    *   LTDC_SYNC_VBLANK:
    *     Informs the driver to update the layer upon vertical blank. Otherwise
    *     immediately.
-   *
    */
+
   int (*update)(FAR struct ltdc_layer_s *layer, uint32_t mode);
 
 #ifdef CONFIG_STM32F7_DMA2D
-  /*
-   * Name: blit
+  /* Name: blit
    *
    * Description:
    *   Copy selected area from a source layer to selected position of the
@@ -502,15 +484,14 @@ struct ltdc_layer_s
    *   -EINVAL  - If one of the parameter invalid or if the size of the selected
    *              source area outside the visible area of the destination layer.
    *              (The visible area usually represents the display size)
-   *
    */
+
    int (*blit)(FAR struct ltdc_layer_s *dest,
                 fb_coord_t destxpos, fb_coord_t destypos,
                 FAR const struct dma2d_layer_s *src,
                 FAR const struct ltdc_area_s *srcarea);
-  /*
-   *
-   * Name: blend
+
+  /* Name: blend
    *
    * Description:
    *   Blends the selected area from a foreground layer with selected position
@@ -532,8 +513,8 @@ struct ltdc_layer_s
    *   -EINVAL  - If one of the parameter invalid or if the size of the selected
    *              source area outside the visible area of the destination layer.
    *              (The visible area usually represents the display size)
-   *
    */
+
    int (*blend)(FAR struct ltdc_layer_s *dest,
                 fb_coord_t destxpos, fb_coord_t destypos,
                 FAR const struct dma2d_layer_s *fore,
@@ -541,8 +522,7 @@ struct ltdc_layer_s
                 FAR const struct dma2d_layer_s *back,
                 FAR const struct ltdc_area_s *backarea);
 
-  /*
-   * Name: fillarea
+  /* Name: fillarea
    *
    * Description:
    *   Fill the selected area of the whole layer with a specific color.
@@ -557,8 +537,8 @@ struct ltdc_layer_s
    *    OK      - On success
    *   -EINVAL  - If one of the parameter invalid or if the size of the selected
    *              area outside the visible area of the layer.
-   *
    */
+
    int (*fillarea)(FAR struct ltdc_layer_s *layer,
                     FAR const struct ltdc_area_s *area,
                     uint32_t color);
@@ -587,6 +567,9 @@ struct ltdc_layer_s
  *   invalid.
  *
  ****************************************************************************/
+
 FAR struct ltdc_layer_s *up_ltdcgetlayer(int lid);
+
 #endif /* CONFIG_STM32F7_LTDC */
 #endif /* __ARCH_ARM_INCLUDE_STM32F7_LTDC_H */
+
diff --git a/arch/arm/src/stm32f7/Kconfig b/arch/arm/src/stm32f7/Kconfig
index fc257a833a..b26e05f49d 100644
--- a/arch/arm/src/stm32f7/Kconfig
+++ b/arch/arm/src/stm32f7/Kconfig
@@ -1177,8 +1177,8 @@ config STM32F7_LTDC
 	---help---
 		The STM32 LTDC is an LCD-TFT Display Controller available on
 		the STM32F7x6, STM32F7x7, STM32F7x8 and STM32F7x9 devices.
-		It features a standard RGB888 parallel video interface (along with HSYNC, VSYNC, etc.)
-		for controlling TFT LCD displays.
+		It features a standard RGB888 parallel video interface (along
+		with HSYNC, VSYNC, etc.) for controlling TFT LCD displays.
 		With the STM32F7x8/9, the graphics signals can optionally
 		be output via DSI instead of the parallel interface:
 		See config options STM32F7_DSIHOST and STM32F7_LTDC_USE_DSI.
@@ -4655,7 +4655,8 @@ config STM32F7_ETHMAC_REGDEBUG
 	default n
 	depends on DEBUG_NET_INFO
 	---help---
-		Enable very low-level register access debug.  Depends on CONFIG_DEBUG_FEATURES.
+		Enable very low-level register access debug.  Depends on
+		CONFIG_DEBUG_FEATURES.
 
 endmenu # Ethernet MAC configuration
 
@@ -4675,7 +4676,8 @@ config STM32F7_LTDC_USE_DSI
 	depends on STM32F7_DSIHOST
 	---help---
 		Select this if your display is connected via DSI.
-		Deselect option if your display is connected via digital RGB+HSYNC+VSYNC
+		Deselect option if your display is connected via digital
+		RGB+HSYNC+VSYNC
 
 config STM32F7_LTDC_BACKLIGHT
 	bool "Backlight support"
@@ -4811,7 +4813,8 @@ config FB_TRANSPARENCY
 	bool "Enable transparency color map support"
 	default y
 	---help---
-		Enabling transparency color map support is neccessary for ltdc L8 format.
+		Enabling transparency color map support is neccessary for
+		ltdc L8 format.
 
 endif
 endmenu
diff --git a/arch/arm/src/stm32f7/stm32_dma2d.c b/arch/arm/src/stm32f7/stm32_dma2d.c
index 912ff2a5ff..0e8d4edd75 100644
--- a/arch/arm/src/stm32f7/stm32_dma2d.c
+++ b/arch/arm/src/stm32f7/stm32_dma2d.c
@@ -122,18 +122,18 @@
 /* Define shadow layer for ltdc interface */
 
 #ifdef CONFIG_STM32F7_LTDC_INTERFACE
-# ifdef CONFIG_STM32F7_LTDC_L2
-#  define DMA2D_SHADOW_LAYER    2
-#  define DMA2D_SHADOW_LAYER_L1 0
-#  define DMA2D_SHADOW_LAYER_L2 1
-# else
-#  define DMA2D_SHADOW_LAYER    1
-#  define DMA2D_SHADOW_LAYER_L1 0
-# endif
-# define DMA2D_LAYER_NSIZE      CONFIG_STM32F7_DMA2D_NLAYERS + DMA2D_SHADOW_LAYER
+#  ifdef CONFIG_STM32F7_LTDC_L2
+#    define DMA2D_SHADOW_LAYER    2
+#    define DMA2D_SHADOW_LAYER_L1 0
+#    define DMA2D_SHADOW_LAYER_L2 1
+#  else
+#    define DMA2D_SHADOW_LAYER    1
+#    define DMA2D_SHADOW_LAYER_L1 0
+#  endif
+#  define DMA2D_LAYER_NSIZE    CONFIG_STM32F7_DMA2D_NLAYERS + DMA2D_SHADOW_LAYER
 #else
-# define DMA2D_LAYER_NSIZE      CONFIG_STM32F7_DMA2D_NLAYERS
-# define DMA2D_SHADOW_LAYER     0
+#  define DMA2D_LAYER_NSIZE    CONFIG_STM32F7_DMA2D_NLAYERS
+#  define DMA2D_SHADOW_LAYER   0
 #endif
 
 /* Debug option */
@@ -149,9 +149,9 @@
 /* check clut support */
 
 #ifdef CONFIG_STM32F7_DMA2D_L8
-# ifndef CONFIG_FB_CMAP
-#  error "Enable cmap to support the configured layer formats!"
-# endif
+#  ifndef CONFIG_FB_CMAP
+#    error "Enable cmap to support the configured layer formats!"
+#  endif
 #endif
 
 /****************************************************************************
@@ -517,7 +517,6 @@ static int stm32_dma2d_waitforirq(void)
   return OK;
 }
 
-
 #ifdef CONFIG_STM32F7_DMA2D_L8
 /****************************************************************************
  * Name: stm32_dma2d_loadclut
diff --git a/arch/arm/src/stm32f7/stm32_dma2d.h b/arch/arm/src/stm32f7/stm32_dma2d.h
index e7bfa12fcc..7e0f0213ad 100644
--- a/arch/arm/src/stm32f7/stm32_dma2d.h
+++ b/arch/arm/src/stm32f7/stm32_dma2d.h
@@ -45,17 +45,6 @@
 #include <arch/chip/ltdc.h>
 
 #ifdef CONFIG_STM32F7_DMA2D
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
 
 /****************************************************************************
  * Public Functions
diff --git a/arch/arm/src/stm32f7/stm32_ltdc.c b/arch/arm/src/stm32f7/stm32_ltdc.c
index 4b3121bb6b..36c1d628f6 100644
--- a/arch/arm/src/stm32f7/stm32_ltdc.c
+++ b/arch/arm/src/stm32f7/stm32_ltdc.c
@@ -59,7 +59,6 @@
 
 #include "up_arch.h"
 #include "up_internal.h"
-// #include "stm32.h"
 #include "chip/stm32_ltdc.h"
 #include "stm32_ltdc.h"
 #include "stm32_dma2d.h"
@@ -335,27 +334,27 @@
 /* Dithering */
 
 #ifndef CONFIG_STM32F7_LTDC_DITHER_RED
-# define STM32_LTDC_DITHER_RED      0
+#  define STM32_LTDC_DITHER_RED     0
 #else
-# define STM32_LTDC_DITHER_RED      CONFIG_STM32F7_LTDC_DITHER_RED
+#  define STM32_LTDC_DITHER_RED     CONFIG_STM32F7_LTDC_DITHER_RED
 #endif
 #ifndef CONFIG_STM32F7_LTDC_DITHER_GREEN
-# define STM32_LTDC_DITHER_GREEN    0
+#  define STM32_LTDC_DITHER_GREEN   0
 #else
-# define STM32_LTDC_DITHER_GREEN    CONFIG_STM32F7_LTDC_DITHER_GREEN
+#  define STM32_LTDC_DITHER_GREEN   CONFIG_STM32F7_LTDC_DITHER_GREEN
 #endif
 #ifndef CONFIG_STM32F7_LTDC_DITHER_BLUE
-# define STM32_LTDC_DITHER_BLUE     0
+#  define STM32_LTDC_DITHER_BLUE    0
 #else
-# define STM32_LTDC_DITHER_BLUE     CONFIG_STM32F7_LTDC_DITHER_BLUE
+#  define STM32_LTDC_DITHER_BLUE    CONFIG_STM32F7_LTDC_DITHER_BLUE
 #endif
 
 /* Background color */
 
 #ifndef CONFIG_STM32F7_LTDC_BACKCOLOR
-# define STM32_LTDC_BACKCOLOR       0
+#  define STM32_LTDC_BACKCOLOR      0
 #else
-# define STM32_LTDC_BACKCOLOR       CONFIG_STM32F7_LTDC_BACKCOLOR
+#  define STM32_LTDC_BACKCOLOR      CONFIG_STM32F7_LTDC_BACKCOLOR
 #endif
 
 /* Internal operation flags */
@@ -387,55 +386,55 @@
 /* Check pixel format support by DMA2D driver */
 
 #ifdef CONFIG_STM32F7_DMA2D
-# if defined(CONFIG_STM32F7_LTDC_L1_L8) || \
-        defined(CONFIG_STM32F7_LTDC_L2_L8)
-#  if !defined(CONFIG_STM32F7_DMA2D_L8)
-#   error "DMA2D must support FB_FMT_RGB8 pixel format"
+#  if defined(CONFIG_STM32F7_LTDC_L1_L8) || \
+      defined(CONFIG_STM32F7_LTDC_L2_L8)
+#    if !defined(CONFIG_STM32F7_DMA2D_L8)
+#       error "DMA2D must support FB_FMT_RGB8 pixel format"
+#    endif
 #  endif
-# endif
-# if defined(CONFIG_STM32F7_LTDC_L1_RGB565) || \
-        defined(CONFIG_STM32F7_LTDC_L2_RGB565)
-#  if !defined(CONFIG_STM32F7_DMA2D_RGB565)
-#   error "DMA2D must support FB_FMT_RGB16_565 pixel format"
+#  if defined(CONFIG_STM32F7_LTDC_L1_RGB565) || \
+      defined(CONFIG_STM32F7_LTDC_L2_RGB565)
+#    if !defined(CONFIG_STM32F7_DMA2D_RGB565)
+#       error "DMA2D must support FB_FMT_RGB16_565 pixel format"
+#    endif
 #  endif
-# endif
-# if defined(CONFIG_STM32F7_LTDC_L1_RGB888) || \
-        defined(CONFIG_STM32F7_LTDC_L2_RGB888)
-#  if !defined(CONFIG_STM32F7_DMA2D_RGB888)
-#   error "DMA2D must support FB_FMT_RGB24 pixel format"
+#  if defined(CONFIG_STM32F7_LTDC_L1_RGB888) || \
+      defined(CONFIG_STM32F7_LTDC_L2_RGB888)
+#    if !defined(CONFIG_STM32F7_DMA2D_RGB888)
+#      error "DMA2D must support FB_FMT_RGB24 pixel format"
+#    endif
 #  endif
-# endif
 #endif
 
 /* Calculate the size of the layers clut table */
 
 #ifdef CONFIG_FB_CMAP
-# if defined(CONFIG_STM32F7_DMA2D) && !defined(CONFIG_STM32F7_DMA2D_L8)
-#  error "DMA2D must also support L8 CLUT pixel format if supported by LTDC"
-# endif
-# ifdef STM32_LTDC_L1CMAP
-#  ifdef CONFIG_FB_TRANSPARENCY
-#   define STM32_LAYER_CLUT_SIZE     STM32_LTDC_NCLUT * sizeof(uint32_t)
-#  else
-#   define STM32_LAYER_CLUT_SIZE     STM32_LTDC_NCLUT * 3 * sizeof(uint8_t)
+#  if defined(CONFIG_STM32F7_DMA2D) && !defined(CONFIG_STM32F7_DMA2D_L8)
+#    error "DMA2D must also support L8 CLUT pixel format if supported by LTDC"
 #  endif
-# endif
-# ifdef STM32_LTDC_L2CMAP
-#  undef  STM32_LAYER_CLUT_SIZE
-#  ifdef CONFIG_FB_TRANSPARENCY
-#   define STM32_LAYER_CLUT_SIZE     STM32_LTDC_NCLUT * sizeof(uint32_t) * 2
-#  else
-#   define STM32_LAYER_CLUT_SIZE     STM32_LTDC_NCLUT * 3 * sizeof(uint8_t) * 2
+#  ifdef STM32_LTDC_L1CMAP
+#    ifdef CONFIG_FB_TRANSPARENCY
+#      define STM32_LAYER_CLUT_SIZE  STM32_LTDC_NCLUT * sizeof(uint32_t)
+#    else
+#      define STM32_LAYER_CLUT_SIZE  STM32_LTDC_NCLUT * 3 * sizeof(uint8_t)
+#    endif
+#  endif
+#  ifdef STM32_LTDC_L2CMAP
+#    undef  STM32_LAYER_CLUT_SIZE
+#    ifdef CONFIG_FB_TRANSPARENCY
+#      define STM32_LAYER_CLUT_SIZE  STM32_LTDC_NCLUT * sizeof(uint32_t) * 2
+#    else
+#      define STM32_LAYER_CLUT_SIZE  STM32_LTDC_NCLUT * 3 * sizeof(uint8_t) * 2
+#    endif
 #  endif
-# endif
 #endif
 
 #ifndef CONFIG_FB_CMAP
-# if defined(STM32_LTDC_L1CMAP) || defined(STM32_LTDC_L2CMAP)
-#  undef STM32_LTDC_L1CMAP
-#  undef STM32_LTDC_L2CMAP
-#  error "Enable cmap to support the configured layer format!"
-# endif
+#  if defined(STM32_LTDC_L1CMAP) || defined(STM32_LTDC_L2CMAP)
+#    undef STM32_LTDC_L1CMAP
+#    undef STM32_LTDC_L2CMAP
+#    error "Enable cmap to support the configured layer format!"
+#  endif
 #endif
 
 /* Layer clut rgb value positioning */
@@ -924,18 +923,11 @@ static const uintptr_t stm32_clutwr_layer_t[LTDC_NLAYERS] =
 
 static bool g_initialized;
 
-/****************************************************************************
- * Public Data
- ****************************************************************************/
 
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
 
-/****************************************************************************
- * Configure global register
- ****************************************************************************/
-
 /****************************************************************************
  * Name: stm32_ltdc_gpioconfig
  *
diff --git a/configs/README.txt b/configs/README.txt
index c17dfb6356..2caf70874e 100644
--- a/configs/README.txt
+++ b/configs/README.txt
@@ -685,6 +685,11 @@ configs/stm32l476-mdk
   The STM32L476ME  is a Cortex-M4 optimised for low-power operation
   at up to 80MHz operation with 1024Kb Flash memory and 96+32Kb SRAM.
 
+configs/stm32f769i-disco
+  NuttX configurations for the STMicro STM32F769I-DISCO development board
+  featuring the STM32F769NIH6 MCU. The STM32F769NIH6 is a 216MHz Cortex-M7
+  operating with 2048K Flash memory and 512Kb SRAM.
+
 configs/stm32l476vg-disco
   STMicro STM32L476VG_DISCO development board featuring the STM32L476VG
   MCU. The STM32L476VG  is a Cortex-M4 optimised for low-power operation
diff --git a/configs/stm32f769i-disco/README.txt b/configs/stm32f769i-disco/README.txt
index a0fe5800e4..e3921dab2f 100644
--- a/configs/stm32f769i-disco/README.txt
+++ b/configs/stm32f769i-disco/README.txt
@@ -3,7 +3,7 @@ README
 
 This README discusses issues unique to NuttX configurations for the
 STMicro STM32F769I-DISCO development board featuring the STM32F769NIH6
-MCU. The STM32F769NIH6  is a 216MHz Cortex-M7 operation with 2048K Flash
+MCU. The STM32F769NIH6 is a 216MHz Cortex-M7 operating with 2048K Flash
 memory and 512Kb SRAM. The board features:
 
   - On-board ST-LINK/V2 for programming and debugging,
@@ -42,7 +42,7 @@ STATUS
 
   2017-07:  STM32 F7 Ethernet appears to be functional, but has had
     only light testing.
-  
+
   Work in progress: Use LCD over DSI interface, rest of board.
 
 Development Environment
@@ -95,7 +95,6 @@ Serial Console
 
   Use the serial interface the ST/LINK provides to the USB host.
 
-
 Configurations
 ==============
 
@@ -110,7 +109,6 @@ Configurations
 
   Where <subdir> is one of the sub-directories listed below.
 
-
 Configuration Directories
 -------------------------
 
diff --git a/configs/stm32f769i-disco/nsh-ethernet/defconfig b/configs/stm32f769i-disco/nsh-ethernet/defconfig
index 1344adca8c..1b3383624f 100644
--- a/configs/stm32f769i-disco/nsh-ethernet/defconfig
+++ b/configs/stm32f769i-disco/nsh-ethernet/defconfig
@@ -12,16 +12,6 @@ CONFIG_ARMV7M_ICACHE=y
 CONFIG_ARMV7M_LAZYFPU=y
 CONFIG_BOARD_LOOPSPERMSEC=43103
 CONFIG_BUILTIN=y
-CONFIG_DEBUG_ERROR=y
-CONFIG_DEBUG_FEATURES=y
-CONFIG_DEBUG_MEMCARD_ERROR=y
-CONFIG_DEBUG_MEMCARD_WARN=y
-CONFIG_DEBUG_MEMCARD=y
-CONFIG_DEBUG_NET_ERROR=y
-CONFIG_DEBUG_NET_WARN=y
-CONFIG_DEBUG_NET=y
-CONFIG_DEBUG_SYMBOLS=y
-CONFIG_DEBUG_WARN=y
 CONFIG_DISABLE_POLL=y
 CONFIG_ETH0_PHY_LAN8742A=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
@@ -58,7 +48,6 @@ CONFIG_NSH_DISABLE_IFUPDOWN=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_LINELEN=64
 CONFIG_NSH_MOTD=y
-CONFIG_NSH_NETINIT_DEBUG=y
 CONFIG_NSH_READLINE=y
 CONFIG_PREALLOC_MQ_MSGS=4
 CONFIG_PREALLOC_TIMERS=4
diff --git a/configs/stm32f769i-disco/nsh/defconfig b/configs/stm32f769i-disco/nsh/defconfig
index 18a906007f..8d5cc7fdfb 100644
--- a/configs/stm32f769i-disco/nsh/defconfig
+++ b/configs/stm32f769i-disco/nsh/defconfig
@@ -12,7 +12,6 @@ CONFIG_ARMV7M_ICACHE=y
 CONFIG_ARMV7M_LAZYFPU=y
 CONFIG_BOARD_LOOPSPERMSEC=43103
 CONFIG_BUILTIN=y
-CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DISABLE_POLL=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
diff --git a/configs/stm32f769i-disco/src/stm32_appinitialize.c b/configs/stm32f769i-disco/src/stm32_appinitialize.c
index 31e7d1d796..17d40799b3 100644
--- a/configs/stm32f769i-disco/src/stm32_appinitialize.c
+++ b/configs/stm32f769i-disco/src/stm32_appinitialize.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * config/stm32f769i-disco/src/stm32_appinitilaize.c
+ * config/stm32f769i-disco/src/stm32_appinitialize.c
  *
  *   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
diff --git a/configs/stm32f769i-disco/src/stm32_buttons.c b/configs/stm32f769i-disco/src/stm32_buttons.c
index 8fd7b6cef2..9103f42cba 100644
--- a/configs/stm32f769i-disco/src/stm32_buttons.c
+++ b/configs/stm32f769i-disco/src/stm32_buttons.c
@@ -49,10 +49,6 @@
 
 #ifdef CONFIG_ARCH_BUTTONS
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
diff --git a/configs/stm32f769i-disco/src/stm32_ostest.c b/configs/stm32f769i-disco/src/stm32_ostest.c
index 184f88d670..1ca75cdfbf 100644
--- a/configs/stm32f769i-disco/src/stm32_ostest.c
+++ b/configs/stm32f769i-disco/src/stm32_ostest.c
@@ -82,6 +82,7 @@ static uint32_t g_saveregs[XCPTCONTEXT_REGS];
 /************************************************************************************
  * Public Functions
  ************************************************************************************/
+
 /* Given an array of size CONFIG_EXAMPLES_OSTEST_FPUSIZE, this function will return
  * the current FPU registers.
  */
diff --git a/wireless/ieee802154/Kconfig b/wireless/ieee802154/Kconfig
index d8c698047c..5b8e379968 100644
--- a/wireless/ieee802154/Kconfig
+++ b/wireless/ieee802154/Kconfig
@@ -114,7 +114,7 @@ config IEEE802154_IND_IRQRESERVE
 		dynamically allocate the meta data structure with an additional cost
 		in performance.
 
-		NOTE: Currently marked as experimental and with a default 0 zero
+		NOTE: Currently marked as experimental and with a default of zero
 		because there are no interrupt level allocations performed by the
 		current IEEE 802.15.4 MAC code.