diff --git a/common/Kconfig b/common/Kconfig
index ff2b1a400bd1015feef13d7083da0be0196d9765..dbe5bb619baeed6463a466141d015a95475478e5 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -335,6 +335,15 @@ config SYS_CONSOLE_INFO_QUIET
Enable this option to supress this output. It can be obtained by
calling stdio_print_current_devices() from board code.
+config SYS_STDIO_DEREGISTER
+ bool "Allow deregistering stdio devices"
+ default y if USB_KEYBOARD
+ help
+ Generally there is no need to deregister stdio devices since they
+ are never deactivated. But if a stdio device is used which can be
+ removed (for example a USB keyboard) then this option can be
+ enabled to ensure this is handled correctly.
+
endmenu
config SYS_NO_FLASH
diff --git a/common/stdio.c b/common/stdio.c
index ab9b05df48abb61c03d46f6e47ac845c8125a3e5..8e4a9beef4542dab055489c31589a0f4c64b3707 100644
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -37,7 +37,7 @@ char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
#define CONFIG_SYS_DEVICE_NULLDEV 1
#endif
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
#define CONFIG_SYS_DEVICE_NULLDEV 1
#endif
@@ -245,7 +245,7 @@ int stdio_register(struct stdio_dev *dev)
/* deregister the device "devname".
* returns 0 if success, -1 if device is assigned and 1 if devname not found
*/
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
int stdio_deregister_dev(struct stdio_dev *dev, int force)
{
int l;
@@ -292,7 +292,7 @@ int stdio_deregister(const char *devname, int force)
return stdio_deregister_dev(dev, force);
}
-#endif /* CONFIG_SYS_STDIO_DEREGISTER */
+#endif /* CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) */
int stdio_init_tables(void)
{
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index a9872a6b5ac94972e00ec8ce2a9923293e5e869d..5f9a64ad1c5490d4f8414a2a86e82e165a4084d9 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -570,7 +570,7 @@ int drv_usb_kbd_init(void)
/* Deregister the keyboard. */
int usb_kbd_deregister(int force)
{
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
struct stdio_dev *dev;
struct usb_device *usb_kbd_dev;
struct usb_kbd_pdata *data;
diff --git a/configs/MPC8610HPCD_defconfig b/configs/MPC8610HPCD_defconfig
index ca8cb95d8cdb3587e5f56f877acc318af1a8c4c2..b4e053a34d2c2025a88e153f53620a6f6904c499 100644
--- a/configs/MPC8610HPCD_defconfig
+++ b/configs/MPC8610HPCD_defconfig
@@ -6,6 +6,7 @@ CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_BOOTDELAY=10
# CONFIG_CONSOLE_MUX is not set
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_I2C=y
CONFIG_CMD_USB=y
diff --git a/configs/MPC8641HPCN_36BIT_defconfig b/configs/MPC8641HPCN_36BIT_defconfig
index 6f8d8f5c859fa8ee624d8706d3ee067acf433e32..8ffa5e955ea393d4e6d93c97991b86289c39eb9e 100644
--- a/configs/MPC8641HPCN_36BIT_defconfig
+++ b/configs/MPC8641HPCN_36BIT_defconfig
@@ -7,6 +7,7 @@ CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_BOOTDELAY=10
# CONFIG_CONSOLE_MUX is not set
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_I2C=y
CONFIG_CMD_USB=y
diff --git a/configs/MPC8641HPCN_defconfig b/configs/MPC8641HPCN_defconfig
index 16163fcebe8777dd73d6fdce095bb52fc3257b75..6f9bf01602e9a0dd175646c737c6bf1500b730d5 100644
--- a/configs/MPC8641HPCN_defconfig
+++ b/configs/MPC8641HPCN_defconfig
@@ -6,6 +6,7 @@ CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_BOOTDELAY=10
# CONFIG_CONSOLE_MUX is not set
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_I2C=y
CONFIG_CMD_USB=y
diff --git a/configs/apalis_t30_defconfig b/configs/apalis_t30_defconfig
index 41c1f522e26baf7829e2d524d9720e08aec477f5..4a1a67e1b0571d43677da8fb5d7e2e94f9df407b 100644
--- a/configs/apalis_t30_defconfig
+++ b/configs/apalis_t30_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_APALIS_T30=y
CONFIG_DEFAULT_DEVICE_TREE="tegra30-apalis"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Apalis T30 # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/at91rm9200ek_defconfig b/configs/at91rm9200ek_defconfig
index b6db8c41901b0e2614944b7cb231b25667a06c6f..291fb0d9b356203dea0811e56b37282998340656 100644
--- a/configs/at91rm9200ek_defconfig
+++ b/configs/at91rm9200ek_defconfig
@@ -2,6 +2,7 @@ CONFIG_ARM=y
CONFIG_ARCH_AT91=y
CONFIG_TARGET_AT91RM9200EK=y
CONFIG_BOOTDELAY=3
+# CONFIG_SYS_STDIO_DEREGISTER is not set
# CONFIG_DISPLAY_CPUINFO is not set
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_HUSH_PARSER=y
diff --git a/configs/at91rm9200ek_ram_defconfig b/configs/at91rm9200ek_ram_defconfig
index e042f0bc28dc53b3f6fde64541ab805d97d0e99d..7c00ede0f9b023f429972e48910fd76191b0f476 100644
--- a/configs/at91rm9200ek_ram_defconfig
+++ b/configs/at91rm9200ek_ram_defconfig
@@ -3,6 +3,7 @@ CONFIG_ARCH_AT91=y
CONFIG_TARGET_AT91RM9200EK=y
CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT"
CONFIG_BOOTDELAY=3
+# CONFIG_SYS_STDIO_DEREGISTER is not set
# CONFIG_DISPLAY_CPUINFO is not set
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_HUSH_PARSER=y
diff --git a/configs/beaver_defconfig b/configs/beaver_defconfig
index 0c5e59f88896bbdbff368916ff0d8f242e4a1dac..a2a146fd48c2b5277eec7ec2cb104da5ee893e95 100644
--- a/configs/beaver_defconfig
+++ b/configs/beaver_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_BEAVER=y
CONFIG_DEFAULT_DEVICE_TREE="tegra30-beaver"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra30 (Beaver) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/cardhu_defconfig b/configs/cardhu_defconfig
index ffd52c2729e68906d5231417c0435d12187c94de..746b24ee69d6684a13887425e94ac77248b3106a 100644
--- a/configs/cardhu_defconfig
+++ b/configs/cardhu_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_CARDHU=y
CONFIG_DEFAULT_DEVICE_TREE="tegra30-cardhu"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra30 (Cardhu) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/cei-tk1-som_defconfig b/configs/cei-tk1-som_defconfig
index 89024b7854ad990f204171ed10f5c70444d147c5..516884dc4d7c0922481f086b1403970abe6b3ab8 100644
--- a/configs/cei-tk1-som_defconfig
+++ b/configs/cei-tk1-som_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_CEI_TK1_SOM=y
CONFIG_DEFAULT_DEVICE_TREE="tegra124-cei-tk1-som"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra124 (TK1-SOM) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/cgtqmx6eval_defconfig b/configs/cgtqmx6eval_defconfig
index a2df031ddd190136b0e561e4589a005f335cbf86..1392f7e9b5391c7433077123b0f11f4c3b177cdf 100644
--- a/configs/cgtqmx6eval_defconfig
+++ b/configs/cgtqmx6eval_defconfig
@@ -18,6 +18,7 @@ CONFIG_BOOTDELAY=3
# CONFIG_CONSOLE_MUX is not set
CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_SPL=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="CGT-QMX6-Quad U-Boot > "
diff --git a/configs/colibri_t20_defconfig b/configs/colibri_t20_defconfig
index 897cd01f818df9f80f4efdc5e787b6ec8a67d109..5f95e3eb99b2b678586cc4190f69c63ad107867a 100644
--- a/configs/colibri_t20_defconfig
+++ b/configs/colibri_t20_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA20=y
CONFIG_TARGET_COLIBRI_T20=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-colibri"
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Colibri T20 # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/colibri_t30_defconfig b/configs/colibri_t30_defconfig
index 42f32a929f916002afad2035a5663806f4505a6d..de00afe1b01e9b9273e4a71ab09848b313d8e866 100644
--- a/configs/colibri_t30_defconfig
+++ b/configs/colibri_t30_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_COLIBRI_T30=y
CONFIG_DEFAULT_DEVICE_TREE="tegra30-colibri"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Colibri T30 # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/dalmore_defconfig b/configs/dalmore_defconfig
index 25ae702f7cb50b140db7e6a32633b19adac81ceb..0a17ca45827695230e31783e49f2dc07cf524660 100644
--- a/configs/dalmore_defconfig
+++ b/configs/dalmore_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_DALMORE=y
CONFIG_DEFAULT_DEVICE_TREE="tegra114-dalmore"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra114 (Dalmore) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/dms-ba16-1g_defconfig b/configs/dms-ba16-1g_defconfig
index 859ea1fb7641ac6510e467c7de932694a98b11e2..d63b290b84f774332485851973c0e53f1bc8647c 100644
--- a/configs/dms-ba16-1g_defconfig
+++ b/configs/dms-ba16-1g_defconfig
@@ -7,6 +7,7 @@ CONFIG_BOOTDELAY=1
# CONFIG_CONSOLE_MUX is not set
CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/dms-ba16_defconfig b/configs/dms-ba16_defconfig
index c460f60b201af91bbb5b247aa98e2d8070f04157..b40912b732c31a683afb7167ff2da2879f4e98dd 100644
--- a/configs/dms-ba16_defconfig
+++ b/configs/dms-ba16_defconfig
@@ -6,6 +6,7 @@ CONFIG_BOOTDELAY=1
# CONFIG_CONSOLE_MUX is not set
CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/e2220-1170_defconfig b/configs/e2220-1170_defconfig
index 4df533f2e8324aaec382fab1ec8d09c5917beb29..c88cd365eca1b6d4f496a303788cce509ab6e9ad 100644
--- a/configs/e2220-1170_defconfig
+++ b/configs/e2220-1170_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA210=y
CONFIG_DEFAULT_DEVICE_TREE="tegra210-e2220-1170"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra210 (E2220-1170) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/gwventana_defconfig b/configs/gwventana_defconfig
index c1a3c1c7857ed26b734d390abaf81e114edf8230..67753adcd0b347fcbc4236858ac2351ef2618865 100644
--- a/configs/gwventana_defconfig
+++ b/configs/gwventana_defconfig
@@ -17,6 +17,7 @@ CONFIG_FIT_VERBOSE=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL"
CONFIG_BOOTDELAY=3
+# CONFIG_SYS_STDIO_DEREGISTER is not set
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_SPL=y
CONFIG_SPL_STACK_R=y
diff --git a/configs/harmony_defconfig b/configs/harmony_defconfig
index 5c76af3f4713b08070889548d1513c7d688d1185..cc7106ffadb4d0abe3e2ea613bb055adcd660ebf 100644
--- a/configs/harmony_defconfig
+++ b/configs/harmony_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA20=y
CONFIG_TARGET_HARMONY=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-harmony"
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (Harmony) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/jetson-tk1_defconfig b/configs/jetson-tk1_defconfig
index 4544c28cac3465196a456f84a55f74482507fa0f..b5c6106a11fcb1989fba5e9b295ccaab02273aa2 100644
--- a/configs/jetson-tk1_defconfig
+++ b/configs/jetson-tk1_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_JETSON_TK1=y
CONFIG_DEFAULT_DEVICE_TREE="tegra124-jetson-tk1"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra124 (Jetson TK1) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/medcom-wide_defconfig b/configs/medcom-wide_defconfig
index fc19b5fc9dc1d5a6a766b6192371219651c93940..c3caebb7a6a10328661a9305723c67498ee3bd11 100644
--- a/configs/medcom-wide_defconfig
+++ b/configs/medcom-wide_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_MEDCOM_WIDE=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-medcom-wide"
CONFIG_FIT=y
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (Medcom-Wide) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/mx6cuboxi_defconfig b/configs/mx6cuboxi_defconfig
index 3f0077360331246474ebabee91df8aa4194101d2..22173cc9ebbb59eff10fd3c6f7b7e1bb07df15c3 100644
--- a/configs/mx6cuboxi_defconfig
+++ b/configs/mx6cuboxi_defconfig
@@ -12,6 +12,7 @@ CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL"
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_SPL=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
diff --git a/configs/mx6qsabrelite_defconfig b/configs/mx6qsabrelite_defconfig
index 99e7e0b1d4946f7e678dadecc0de32c1a65577e9..d0ecdb9cdada2bfe252d45ca48218f41d77f9bd1 100644
--- a/configs/mx6qsabrelite_defconfig
+++ b/configs/mx6qsabrelite_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q.cfg,MX6Q,DDR_MB=1024,SABRELITE"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6dl2g_defconfig b/configs/nitrogen6dl2g_defconfig
index 8342d353ab30771ad989a32ebd3f05b48289c578..cd4b675dd3be923887d9d046a66e99aff95370b7 100644
--- a/configs/nitrogen6dl2g_defconfig
+++ b/configs/nitrogen6dl2g_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl2g.cfg,MX6DL,DDR_MB=2048"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6dl_defconfig b/configs/nitrogen6dl_defconfig
index 262467838e86619dc5c55f8b453db5273c5bc13d..7ea8f51782bfb6e59eba7680c0b419f6e9b1e431 100644
--- a/configs/nitrogen6dl_defconfig
+++ b/configs/nitrogen6dl_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl.cfg,MX6DL,DDR_MB=1024"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6q2g_defconfig b/configs/nitrogen6q2g_defconfig
index 06f44fd32a1b7b00d16597d2a8d74b77ff4c3087..d9df123cf64af36617488560b9a582131919e596 100644
--- a/configs/nitrogen6q2g_defconfig
+++ b/configs/nitrogen6q2g_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q2g.cfg,MX6Q,DDR_MB=2048"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6q_defconfig b/configs/nitrogen6q_defconfig
index 289338961f7972c14803df8fd478c87ea447ba43..0063df7c3b2d998a5896520ca9fd25a6e3699fcb 100644
--- a/configs/nitrogen6q_defconfig
+++ b/configs/nitrogen6q_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q.cfg,MX6Q,DDR_MB=1024"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6s1g_defconfig b/configs/nitrogen6s1g_defconfig
index 9419fe9256818d076319143c0fc3042d9a7b7045..1572b9bb4576ee4ae6885f532fe23f73aa2fdf60 100644
--- a/configs/nitrogen6s1g_defconfig
+++ b/configs/nitrogen6s1g_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s1g.cfg,MX6S,DDR_MB=1024"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nitrogen6s_defconfig b/configs/nitrogen6s_defconfig
index 30e94f8736dff4a339650bcf0be474103e5dbecb..6c4061634e715b85a31976c9e534ecc6ef0c45ff 100644
--- a/configs/nitrogen6s_defconfig
+++ b/configs/nitrogen6s_defconfig
@@ -5,6 +5,7 @@ CONFIG_VIDEO=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s.cfg,MX6S,DDR_MB=512"
CONFIG_BOOTDELAY=3
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_SYS_STDIO_DEREGISTER is not set
CONFIG_HUSH_PARSER=y
CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index 2a1d318bc80f4aa0a64b290c70fb8df2bdceb699..ae3f84c33e38e9a7e131a403384516144c8672dc 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -6,6 +6,7 @@ CONFIG_DEFAULT_DEVICE_TREE="tegra124-nyan-big"
CONFIG_FIT=y
CONFIG_FIT_BEST_MATCH=y
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra124 (Nyan-big) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/p2371-0000_defconfig b/configs/p2371-0000_defconfig
index a8c9239c937d8c031d73fb319e1d19040d01fddb..0b074ecc449ed39d4facaf8dff6c59047954cdf3 100644
--- a/configs/p2371-0000_defconfig
+++ b/configs/p2371-0000_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_P2371_0000=y
CONFIG_DEFAULT_DEVICE_TREE="tegra210-p2371-0000"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra210 (P2371-0000) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/p2371-2180_defconfig b/configs/p2371-2180_defconfig
index de5817d8aa4bbf4bd77cee4fa2e29d948663e638..79797605603834e92c308dac06f71ffc1c9c633e 100644
--- a/configs/p2371-2180_defconfig
+++ b/configs/p2371-2180_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_P2371_2180=y
CONFIG_DEFAULT_DEVICE_TREE="tegra210-p2371-2180"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra210 (P2371-2180) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/p2571_defconfig b/configs/p2571_defconfig
index a6e80f7548a093642a15d9b88ea87207412a82c7..a114ce3dda4e041f895bebc8500e783aeabbd422 100644
--- a/configs/p2571_defconfig
+++ b/configs/p2571_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_P2571=y
CONFIG_DEFAULT_DEVICE_TREE="tegra210-p2571"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra210 (P2571) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/p2771-0000-000_defconfig b/configs/p2771-0000-000_defconfig
index 88a5b1869b38c3d7db2cd18c6b237a3104dd023a..7956cdde6cae26643f038758f4a4b04091b61f6a 100644
--- a/configs/p2771-0000-000_defconfig
+++ b/configs/p2771-0000-000_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA186=y
CONFIG_DEFAULT_DEVICE_TREE="tegra186-p2771-0000-000"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra186 (P2771-0000-000) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/p2771-0000-500_defconfig b/configs/p2771-0000-500_defconfig
index 1633ed22fcc31f3e94e4badd5289fefe411dd054..940bb5f9bf6e51e508610ae95e93b01e548c32cb 100644
--- a/configs/p2771-0000-500_defconfig
+++ b/configs/p2771-0000-500_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA186=y
CONFIG_DEFAULT_DEVICE_TREE="tegra186-p2771-0000-500"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra186 (P2771-0000-500) # "
# CONFIG_CMD_IMI is not set
diff --git a/configs/paz00_defconfig b/configs/paz00_defconfig
index 5e82a015ed55dffe2ef70a106e8d3683c419dc9b..be8708763be1259662458294efd35c15cbff3051 100644
--- a/configs/paz00_defconfig
+++ b/configs/paz00_defconfig
@@ -4,6 +4,7 @@ CONFIG_TEGRA20=y
CONFIG_TARGET_PAZ00=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-paz00"
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (Paz00) MOD # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/plutux_defconfig b/configs/plutux_defconfig
index 0d3ffaa0b42b3d58ec6201332f8ff42642de0470..52854811a9a348d0f8e18a496f2f361f8c79589c 100644
--- a/configs/plutux_defconfig
+++ b/configs/plutux_defconfig
@@ -6,6 +6,7 @@ CONFIG_DEFAULT_DEVICE_TREE="tegra20-plutux"
CONFIG_FIT=y
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (Plutux) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/smdk2410_defconfig b/configs/smdk2410_defconfig
index c84ce521a35dd5e65b9fc1c291c4d587b0f11e23..1eba4f996e3de1644fba44588d7e8e28fbe126ab 100644
--- a/configs/smdk2410_defconfig
+++ b/configs/smdk2410_defconfig
@@ -1,6 +1,7 @@
CONFIG_ARM=y
CONFIG_TARGET_SMDK2410=y
CONFIG_BOOTDELAY=5
+# CONFIG_SYS_STDIO_DEREGISTER is not set
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="SMDK2410 # "
diff --git a/configs/tec-ng_defconfig b/configs/tec-ng_defconfig
index 81ffb486ac53b2e50408a0605d391470c282881b..f830389e978d9122dc898a14235d33c9dbb3e84e 100644
--- a/configs/tec-ng_defconfig
+++ b/configs/tec-ng_defconfig
@@ -6,6 +6,7 @@ CONFIG_DEFAULT_DEVICE_TREE="tegra30-tec-ng"
CONFIG_FIT=y
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra30 (TEC-NG) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/tec_defconfig b/configs/tec_defconfig
index 24cd293597392368d6be3ce4165d2ce30f69ab4d..40c96eb31f5e4bd513d4c2d84d8d91eebf0b1d1a 100644
--- a/configs/tec_defconfig
+++ b/configs/tec_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_TEC=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-tec"
CONFIG_FIT=y
CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (TEC) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/trimslice_defconfig b/configs/trimslice_defconfig
index 68adf8bd664ceee14d1c5dfb84c6fe2ed4775eb6..3efbb346ee915aebe799d211c2e5f906d9a5fcd8 100644
--- a/configs/trimslice_defconfig
+++ b/configs/trimslice_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_TRIMSLICE=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-trimslice"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (TrimSlice) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/venice2_defconfig b/configs/venice2_defconfig
index 02d4ca96d2ff83057d41143256a2bde2d84bb783..01f3c172a944691c7ef22f1ac5a6d9e39d04907d 100644
--- a/configs/venice2_defconfig
+++ b/configs/venice2_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_VENICE2=y
CONFIG_DEFAULT_DEVICE_TREE="tegra124-venice2"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra124 (Venice2) # "
CONFIG_CMD_BOOTZ=y
diff --git a/configs/whistler_defconfig b/configs/whistler_defconfig
index 4874d5bb2dd67af668edceeb0145729c26e4218f..2c836616312ccb644ecb7dcdd072cb030c1a7374 100644
--- a/configs/whistler_defconfig
+++ b/configs/whistler_defconfig
@@ -5,6 +5,7 @@ CONFIG_TARGET_WHISTLER=y
CONFIG_DEFAULT_DEVICE_TREE="tegra20-whistler"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="Tegra20 (Whistler) # "
CONFIG_CMD_BOOTZ=y
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 19f38e162e0fcebb1e8488a2c7bde041108039c0..43c028ebe63dfd22c72b5023ad79b6ec53fa59e7 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -346,7 +346,7 @@ static int serial_post_probe(struct udevice *dev)
static int serial_pre_remove(struct udevice *dev)
{
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
struct serial_dev_priv *upriv = dev_get_uclass_priv(dev);
if (stdio_deregister_dev(upriv->sdev, 0))
diff --git a/include/configs/MIP405.h b/include/configs/MIP405.h
index 92b82edb0866b445b4653c05627806c07c96f1a9..73ddbac5bfaa0e2c78408800a7d49ed78d01c6cc 100644
--- a/include/configs/MIP405.h
+++ b/include/configs/MIP405.h
@@ -345,7 +345,6 @@
#define CONFIG_USB_UHCI
/* Enable needed helper functions */
-#define CONFIG_SYS_STDIO_DEREGISTER /* needs stdio_deregister */
#endif
/************************************************************
* Debug support
diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h
index 4021be7b1903b0f3bcd922a9ec02d11f2eed5ef8..e3c9e5b30b53982c9b3dbe8fa82337d0535a04db 100644
--- a/include/configs/MPC8610HPCD.h
+++ b/include/configs/MPC8610HPCD.h
@@ -283,7 +283,6 @@
************************************************************/
#define CONFIG_PCI_OHCI 1
#define CONFIG_USB_OHCI_NEW 1
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_SYS_USB_EVENT_POLL 1
#define CONFIG_SYS_USB_OHCI_SLOT_NAME "ohci_pci"
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index 94a9399aff4f79a8a25a4077adebeaa75dd445dc..e0b856f4ee003d444822f0f939bf58be1beb9781 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -361,7 +361,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
************************************************************/
#define CONFIG_PCI_OHCI 1
#define CONFIG_USB_OHCI_NEW 1
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_SYS_USB_EVENT_POLL 1
#define CONFIG_SYS_USB_OHCI_SLOT_NAME "ohci_pci"
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
diff --git a/include/configs/PIP405.h b/include/configs/PIP405.h
index f02967bef104437cb3318ccf03611fec43554809..f923f7cea0e50f822cb1c6074c5ab07e1059d241 100644
--- a/include/configs/PIP405.h
+++ b/include/configs/PIP405.h
@@ -305,7 +305,6 @@
#define CONFIG_USB_UHCI
/* Enable needed helper functions */
-#define CONFIG_SYS_STDIO_DEREGISTER /* needs stdio_deregister */
/************************************************************
* Debug support
diff --git a/include/configs/VCMA9.h b/include/configs/VCMA9.h
index 75c6d50c6fb7af692057de54eaeb782b5436edba..bb26261ab50efd7aa3e2a312801620a06c842792 100644
--- a/include/configs/VCMA9.h
+++ b/include/configs/VCMA9.h
@@ -103,7 +103,6 @@
#define CONFIG_DOS_PARTITION
/* Enable needed helper functions */
-#define CONFIG_SYS_STDIO_DEREGISTER /* needs stdio_deregister */
/* RTC */
#define CONFIG_RTC_S3C24X0
diff --git a/include/configs/cm_fx6.h b/include/configs/cm_fx6.h
index 0b3f0342da989e6420a5e3d1d7c6c3a5e56bd321..0ac3ec7da4ccf2ff6995f65344bcd50a50ca9c55 100644
--- a/include/configs/cm_fx6.h
+++ b/include/configs/cm_fx6.h
@@ -210,7 +210,6 @@
#define CONFIG_MXC_USB_FLAGS 0
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET /* For OTG port */
-#define CONFIG_SYS_STDIO_DEREGISTER
/* I2C */
#define CONFIG_SYS_I2C
diff --git a/include/configs/cyrus.h b/include/configs/cyrus.h
index cb85c6b21f4875d758f1344a498f98f68d709f31..8ce23e6def1bc0a1b0ad770ff5d9e6cb29ff58b2 100644
--- a/include/configs/cyrus.h
+++ b/include/configs/cyrus.h
@@ -446,7 +446,6 @@
#define CONFIG_USB_EHCI_FSL
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_EHCI_IS_TDI
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_SYS_USB_EVENT_POLL
/* _VIA_CONTROL_EP */
#endif
diff --git a/include/configs/gr_ep2s60.h b/include/configs/gr_ep2s60.h
index 36a91c679ddc520bc751799416a3a017be88b230..ad0c126e273997bdf4b263655f60ccfe9a805ed2 100644
--- a/include/configs/gr_ep2s60.h
+++ b/include/configs/gr_ep2s60.h
@@ -58,7 +58,6 @@
#if USE_GRUSB
#define CONFIG_USB_UHCI
/* Enable needed helper functions */
-#define CONFIG_SYS_STDIO_DEREGISTER /* needs stdio_deregister */
#endif
/*
diff --git a/include/configs/novena.h b/include/configs/novena.h
index ee4267a82257f961f0f2ac9b772628ae0584696f..ecc7e7efca95c584d5c900d754f0d56ba23ac15c 100644
--- a/include/configs/novena.h
+++ b/include/configs/novena.h
@@ -142,7 +142,6 @@
#ifdef CONFIG_CMD_USB
#define CONFIG_USB_EHCI
#define CONFIG_USB_EHCI_MX6
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP
#define CONFIG_USB_HOST_ETHER
#define CONFIG_USB_ETHER_ASIX
diff --git a/include/configs/rpi.h b/include/configs/rpi.h
index 25a90cc2e2bffbfdfbc40a8e9176e4ae8cb5eadd..45c82349057b71e1a0d0abf08d2882ebf6851f81 100644
--- a/include/configs/rpi.h
+++ b/include/configs/rpi.h
@@ -101,7 +101,6 @@
#define CONFIG_TFTP_TSIZE
#define CONFIG_MISC_INIT_R
#define CONFIG_SYS_USB_EVENT_POLL
-#define CONFIG_SYS_STDIO_DEREGISTER
#endif
/* Console UART */
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index b6533c33206f9af94af401dbf0a0f5703ebc82da..31ab7652abf8cb0a2804500aabb4881aa2933ff7 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -25,8 +25,6 @@
#define CONFIG_SYS_TIMER_RATE 1000000
#endif
-#define CONFIG_SYS_STDIO_DEREGISTER
-
/*
* Number of bits in a C 'long' on this architecture. Set this to 32 when
* building on a 32-bit machine.
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index f98a48b2c4bbd64d1b90bea84da52e3766d3f883..e0464df0388fb726e5ec58c4871a9193be333530 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -347,7 +347,6 @@ extern int soft_i2c_gpio_scl;
#ifdef CONFIG_USB_KEYBOARD
#define CONFIG_PREBOOT
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
#endif
diff --git a/include/configs/tbs2910.h b/include/configs/tbs2910.h
index b541937acd11d1fadb79839ae630dd8f155ec4ef..61bd489882eabdc0d37241fafc64071b542a4dd1 100644
--- a/include/configs/tbs2910.h
+++ b/include/configs/tbs2910.h
@@ -116,7 +116,6 @@
#endif /* CONFIG_CMD_USB_MASS_STORAGE */
#ifdef CONFIG_USB_KEYBOARD
#define CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE
-#define CONFIG_SYS_STDIO_DEREGISTER
#define CONFIG_PREBOOT \
"usb start; " \
"if hdmidet; then " \
diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index 3590be457ff66cb07d7dd7a6ea49563c9ff34d79..63b711be0f683b700ebf51bd9e1769c72e314705 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -60,10 +60,6 @@
#define CONFIG_SYS_NO_FLASH
-#ifndef CONFIG_SPL_BUILD
-#define CONFIG_SYS_STDIO_DEREGISTER
-#endif
-
/*
* Increasing the size of the IO buffer as default nfsargs size is more
* than 256 and so it is not possible to edit it
diff --git a/include/configs/x86-common.h b/include/configs/x86-common.h
index f2c2b504ffc5f652ec0a2787b17bdb3a6b39a591..3bf42b5027bc47c056287c575ce944b319212e35 100644
--- a/include/configs/x86-common.h
+++ b/include/configs/x86-common.h
@@ -61,8 +61,6 @@
9600, 19200, 38400, 115200}
#define CONFIG_SYS_NS16550_PORT_MAPPED
-#define CONFIG_SYS_STDIO_DEREGISTER
-
#define CONFIG_CMDLINE_EDITING
#define CONFIG_COMMAND_HISTORY
#define CONFIG_AUTO_COMPLETE
diff --git a/include/stdio_dev.h b/include/stdio_dev.h
index 13f76be7c2b6fac3a9626a8089dd71ebf2349c3f..e4fc8b138b45495467da8741f34735db50a32187 100644
--- a/include/stdio_dev.h
+++ b/include/stdio_dev.h
@@ -100,7 +100,7 @@ int stdio_add_devices(void);
int stdio_init(void);
void stdio_print_current_devices(void);
-#ifdef CONFIG_SYS_STDIO_DEREGISTER
+#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
int stdio_deregister(const char *devname, int force);
int stdio_deregister_dev(struct stdio_dev *dev, int force);
#endif
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index a0306a691d6ddb817953ec0edad1aa297cf13264..11b5a221ee6befa2481bb544fd77dd0dc134b24d 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -7681,7 +7681,6 @@ CONFIG_SYS_STACK_LENGTH
CONFIG_SYS_STACK_SIZE
CONFIG_SYS_STATUS_C
CONFIG_SYS_STATUS_OK
-CONFIG_SYS_STDIO_DEREGISTER
CONFIG_SYS_STMICRO_BOOT
CONFIG_SYS_SUPPORT_64BIT_DATA
CONFIG_SYS_SXCNFG_VAL