diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index 8698ffba6f39..5bf41f8a4b47 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -79,10 +79,13 @@
 /* Macros for usage messages */
 
 #define ACPI_USAGE_HEADER(usage) \
-	printf ("Usage: %s\nOptions:\n", usage);
+	acpi_os_printf ("Usage: %s\nOptions:\n", usage);
+
+#define ACPI_USAGE_TEXT(description) \
+	acpi_os_printf (description);
 
 #define ACPI_OPTION(name, description) \
-	printf ("  %-18s%s\n", name, description);
+	acpi_os_printf (" %-18s%s\n", name, description);
 
 #define FILE_SUFFIX_DISASSEMBLY     "dsl"
 #define ACPI_TABLE_FILE_SUFFIX      ".dat"
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
index c03e4731f099..2a06a864c093 100644
--- a/tools/power/acpi/tools/acpidump/apmain.c
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -104,7 +104,7 @@ static void ap_display_usage(void)
 	ACPI_OPTION("-v", "Display version information");
 	ACPI_OPTION("-z", "Verbose mode");
 
-	printf("\nTable Options:\n");
+	ACPI_USAGE_TEXT("\nTable Options:\n");
 
 	ACPI_OPTION("-a <Address>", "Get table via a physical address");
 	ACPI_OPTION("-f <BinaryFile>", "Get table via a binary file");
@@ -112,9 +112,9 @@ static void ap_display_usage(void)
 	ACPI_OPTION("-x", "Do not use but dump XSDT");
 	ACPI_OPTION("-x -x", "Do not use or dump XSDT");
 
-	printf("\n"
-	       "Invocation without parameters dumps all available tables\n"
-	       "Multiple mixed instances of -a, -f, and -n are supported\n\n");
+	ACPI_USAGE_TEXT("\n"
+			"Invocation without parameters dumps all available tables\n"
+			"Multiple mixed instances of -a, -f, and -n are supported\n\n");
 }
 
 /******************************************************************************