dm: core: Allow dm_warn() to be used in SPL
At present this option is disabled in SPL, meaning that warnings are not
displayed. It is sometimes useful to see warnings in SPL for debugging
purposes.
Add a new Kconfig option to permit this.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig
index 07d3a6a..ffae6f9 100644
--- a/drivers/core/Kconfig
+++ b/drivers/core/Kconfig
@@ -40,10 +40,24 @@
depends on DM
default y
help
+ Enable this to see warnings related to driver model.
+
+ Warnings may help with debugging, such as when expected devices do
+ not bind correctly. If the option is disabled, dm_warn() is compiled
+ out - it will do nothing when called.
+
+config SPL_DM_WARN
+ bool "Enable warnings in driver model wuth SPL"
+ depends on SPL_DM
+ help
+ Enable this to see warnings related to driver model in SPL
+
The dm_warn() function can use up quite a bit of space for its
strings. By default this is disabled for SPL builds to save space.
- This will cause dm_warn() to be compiled out - it will do nothing
- when called.
+
+ Warnings may help with debugging, such as when expected devices do
+ not bind correctly. If the option is disabled, dm_warn() is compiled
+ out - it will do nothing when called.
config DM_DEBUG
bool "Enable debug messages in driver model core"
diff --git a/drivers/core/util.c b/drivers/core/util.c
index 25b0d76..91e93b0 100644
--- a/drivers/core/util.c
+++ b/drivers/core/util.c
@@ -11,7 +11,7 @@
#include <linux/libfdt.h>
#include <vsprintf.h>
-#ifdef CONFIG_DM_WARN
+#if CONFIG_IS_ENABLED(DM_WARN)
void dm_warn(const char *fmt, ...)
{
va_list args;
diff --git a/include/config_uncmd_spl.h b/include/config_uncmd_spl.h
index 31da621..af7e3e4 100644
--- a/include/config_uncmd_spl.h
+++ b/include/config_uncmd_spl.h
@@ -16,7 +16,6 @@
#undef CONFIG_DM_SPI
#endif
-#undef CONFIG_DM_WARN
#undef CONFIG_DM_STDIO
#endif /* CONFIG_SPL_BUILD */
diff --git a/include/dm/util.h b/include/dm/util.h
index 9773db6..01a0449 100644
--- a/include/dm/util.h
+++ b/include/dm/util.h
@@ -6,7 +6,7 @@
#ifndef __DM_UTIL_H
#define __DM_UTIL_H
-#ifdef CONFIG_DM_WARN
+#if CONFIG_IS_ENABLED(DM_WARN)
void dm_warn(const char *fmt, ...);
#else
static inline void dm_warn(const char *fmt, ...)