From 76e411eca06f7f56ad36fc71daf3a05ab85f86f7 Mon Sep 17 00:00:00 2001
From: SPRESENSE <41312067+SPRESENSE@users.noreply.github.com>
Date: Mon, 31 Oct 2022 20:27:06 +0900
Subject: [PATCH] boards: cxd56xx: Add CXD56_CAMERA_LATE_INITIALIZE config

This CXD56_CAMERA_LATE_INITIALIZE enables to initialize camera device
drivers in the application side code.
---
 boards/arm/cxd56xx/spresense/Kconfig             | 8 ++++++++
 boards/arm/cxd56xx/spresense/src/cxd56_bringup.c | 8 +++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/boards/arm/cxd56xx/spresense/Kconfig b/boards/arm/cxd56xx/spresense/Kconfig
index 872b400409..46cded7dac 100644
--- a/boards/arm/cxd56xx/spresense/Kconfig
+++ b/boards/arm/cxd56xx/spresense/Kconfig
@@ -765,4 +765,12 @@ config CXD56_BINARY
 		Create nuttx.spk binary format used on spresense board and boards
 		based on cxd56xx arch.
 
+config CXD56_CAMERA_LATE_INITIALIZE
+	bool "Camera drivers late initialization"
+	default n
+	depends on CXD56_CISIF
+	---help---
+		The camera drivers can be initialized on an application code after system booted up
+		by enabling this configuration switch.
+
 endif
diff --git a/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c b/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
index 0c5d25c22a..fa01f4860c 100644
--- a/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
+++ b/boards/arm/cxd56xx/spresense/src/cxd56_bringup.c
@@ -378,13 +378,14 @@ int cxd56_bringup(void)
     }
 #endif
 
+#ifndef CONFIG_CXD56_CAMERA_LATE_INITIALIZE
 #ifdef CONFIG_VIDEO_ISX019
   ret = isx019_initialize();
   if (ret < 0)
     {
       _err("ERROR: Failed to initialize ISX019 board. %d\n", errno);
     }
-#endif
+#endif /* CONFIG_VIDEO_ISX019 */
 
 #ifdef CONFIG_VIDEO_ISX012
   ret = isx012_initialize();
@@ -392,7 +393,7 @@ int cxd56_bringup(void)
     {
       _err("ERROR: Failed to initialize ISX012 board. %d\n", errno);
     }
-#endif
+#endif /* CONFIG_VIDEO_ISX012 */
 
 #ifdef CONFIG_CXD56_CISIF
   ret = cxd56_cisif_initialize();
@@ -401,7 +402,8 @@ int cxd56_bringup(void)
       _err("ERROR: Failed to initialize CISIF. %d\n", errno);
       ret = ERROR;
     }
-#endif
+#endif /* CONFIG_CXD56_CISIF */
+#endif /* CONFIG_CXD56_CAMERA_LATE_INITIALIZE */
 
 #if defined(CONFIG_CXD56_SDIO)
   /* In order to prevent Hi-Z from being input to the SD Card controller,