dtoc: Add a header comment to each generated file
It is currently fairly obvious what the two generated files are for, but
this will change as more are added. It is helpful for readers to describe
the purpose of each file.
Add a header commment field to OutputFile and use it to generate a comment
at the top of each file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/dtoc/dtb_platdata.py b/tools/dtoc/dtb_platdata.py
index e12aaa5..b3d777e 100644
--- a/tools/dtoc/dtb_platdata.py
+++ b/tools/dtoc/dtb_platdata.py
@@ -56,8 +56,10 @@
# This holds information about each type of output file dtoc can create
# type: Type of file (Ftype)
-# fname: Filename excluding directory, e.g. 'dt-platdata.c'
-OutputFile = collections.namedtuple('OutputFile', ['ftype', 'fname'])
+# fname: Filename excluding directory, e.g. 'dt-plat.c'
+# hdr_comment: Comment explaining the purpose of the file
+OutputFile = collections.namedtuple('OutputFile',
+ ['ftype', 'fname', 'hdr_comment'])
# This holds information about a property which includes phandles.
#
@@ -331,15 +333,20 @@
self._lines = []
return lines
- def out_header(self):
- """Output a message indicating that this is an auto-generated file"""
+ def out_header(self, outfile):
+ """Output a message indicating that this is an auto-generated file
+
+ Args:
+ outfile: OutputFile describing the file being generated
+ """
self.out('''/*
* DO NOT MODIFY
*
- * This file was generated by dtoc from a .dtb (device tree binary) file.
+ * %s.
+ * This was generated by dtoc from a .dtb (device tree binary) file.
*/
-''')
+''' % outfile.hdr_comment)
def get_phandle_argc(self, prop, node_name):
"""Check if a node contains phandles
@@ -646,7 +653,6 @@
value: Prop object with field information
"""
- self.out_header()
self.out('#include <stdbool.h>\n')
self.out('#include <linux/libfdt.h>\n')
@@ -789,7 +795,6 @@
See the documentation in doc/driver-model/of-plat.rst for more
information.
"""
- self.out_header()
self.out('/* Allow use of U_BOOT_DRVINFO() in this file */\n')
self.out('#define DT_PLATDATA_C\n')
self.out('\n')
@@ -823,8 +828,12 @@
# key: Command used to generate this file
# value: OutputFile for this command
OUTPUT_FILES = {
- 'struct': OutputFile(Ftype.HEADER, 'dt-structs-gen.h'),
- 'platdata': OutputFile(Ftype.SOURCE, 'dt-platdata.c'),
+ 'struct':
+ OutputFile(Ftype.HEADER, 'dt-structs-gen.h',
+ 'Defines the structs used to hold devicetree data'),
+ 'platdata':
+ OutputFile(Ftype.SOURCE, 'dt-platdata.c',
+ 'Declares the U_BOOT_DRIVER() records and platform data'),
}
@@ -872,6 +881,7 @@
(cmd, ', '.join(sorted(OUTPUT_FILES.keys()))))
plat.setup_output(outfile.ftype,
outfile.fname if output_dirs else output)
+ plat.out_header(outfile)
if cmd == 'struct':
plat.generate_structs(structs)
elif cmd == 'platdata':