scripts: Makefile.lib: generate dsdt_generated.c instead of dsdt.c

There is a conflict between the static file
lib/acpi/dsdt.c and the file dsdt.c generated
dynamicaly by scripts/Makefile.lib. When a
mrproper is done, the static file dsdt.c is
removed. If a build with acpi enabled is
launched after, the following error is raised:

  CC      lib/acpi/acpi_table.o
make[2]: *** No rule to make target 'lib/acpi/dsdt.asl', needed by 'lib/acpi/dsdt.c'.  Stop.
scripts/Makefile.build:394: recipe for target 'lib/acpi' failed

To avoid such error, the generated file is named
dsdt_generated.c instead of dstdt.c.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Tested-by: Heiko Thiery <heiko.thiery@gmail.com>

Makefile

@@ -2227,7 +2227,8 @@ clean: $(clean-dirs)
 		-o -name '*.asn1.[ch]' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
-		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
+		-o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
+		-o -name 'dsdt_generated.c' \
 		-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
 		-type f -print | xargs rm -f
 

board/advantech/som-db5800-som-6867/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Google, Inc
 
 obj-y	+= som-db5800-som-6867.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/congatec/conga-qeval20-qa3-e3845/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Google, Inc
 
 obj-y	+= conga-qeval20-qa3.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/dfi/dfi-bt700/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Google, Inc
 
 obj-y	+= dfi-bt700.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/google/chromebook_coral/Makefile

@@ -3,4 +3,4 @@
 # Copyright 2019 Google LLC
 
 obj-y	+= coral.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/intel/bayleybay/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
 
 obj-y	+= bayleybay.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/intel/edison/Makefile

@@ -5,4 +5,4 @@
 #
 
 obj-y	+= edison.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/intel/galileo/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
 
 obj-y	+= galileo.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

board/intel/minnowmax/Makefile

@@ -3,4 +3,4 @@
 # Copyright (C) 2015, Google, Inc
 
 obj-y	+= minnowmax.o
-obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt_generated.o

scripts/Makefile.lib

@@ -456,8 +456,8 @@ CFLAGS_REMOVE_efi_freestanding.o := $(LTO_CFLAGS)
 # which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power
 # Interface) Source Language compiler (iasl) then converts this ASL code into a
 # C file containing the hex data to build into U-Boot. This file is called
-# dsdt.hex (despite us setting the prefix to .../dsdt.asl.tmp) so must be
-# renamed to dsdt.c for consumption by the build system.
+# dsdt_generated.hex (despite us setting the prefix to .../dsdt_generated.asl.tmp)
+# so must be renamed to dsdt_generated.c for consumption by the build system.
 ASL_TMP = $(patsubst %.c,%.asl.tmp,$@)
 
 quiet_cmd_acpi_c_asl= ASL     $<
@@ -468,9 +468,9 @@ cmd_acpi_c_asl=         \
 		$(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
 	mv $(patsubst %.c,%.hex,$@) $@
 
-$(obj)/dsdt.c:    $(src)/dsdt.asl
+$(obj)/dsdt_generated.c:    $(src)/dsdt.asl
 	$(call cmd,acpi_c_asl)
-	$(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@
+	$(Q)sed -i -e "s,dsdt_generated_aml_code,AmlCode," $@
 
 # Bzip2
 # ---------------------------------------------------------------------------