acpi: Explicitly spell out dsdt.c in the make rule

Currently the make rule for dsdt.c uses a wildcard, as below:

  $(obj)/%.c:    $(src)/%.asl

To avoid any side effect, explicitly mention dsdt.c as this is
the file we intend to use for ACPI DSDT AML generation.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 4f882f1006245c810bfdb45c046e1ee330edd791..85b58198b317c2af5a306ca1d3279aa74797ae21 100644 (file)
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -329,7 +329,7 @@ cmd_acpi_c_asl=         \
        iasl -p $< -tc -va $<.tmp; \
        mv $(patsubst %.asl,%.hex,$<) $@
 
-$(obj)/%.c:    $(src)/%.asl
+$(obj)/dsdt.c:    $(src)/dsdt.asl
        $(call cmd,acpi_c_asl)
 
 # Bzip2