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Add support for YAML encoded output

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YAML encoded DT is useful for validation of DTs using binding schemas.

The YAML encoding is an intermediate format used for validation and
is therefore subject to change as needed. The YAML output is dependent
on DTS input with type information preserved.

Signed-off-by: Grant Likely <grant.likely@arm.com>
[robh: make YAML support optional, build fixes, Travis CI test,
 preserve type information in paths and phandles]
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Grant Likely 2018-09-11 15:41:31 -05:00 • committed by David Gibson
parent 361b5e7d80
commit c86da84d30
9 changed files with 307 additions and 2 deletions
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11
dtc.c
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@ -95,6 +95,9 @@ static const char * const usage_opts_help[] = {
"\n\tOutput formats are:\n"
"\t\tdts - device tree source text\n"
"\t\tdtb - device tree blob\n"
#ifndef NO_YAML
"\t\tyaml - device tree encoded as YAML\n"
#endif
"\t\tasm - assembler source",
"\n\tBlob version to produce, defaults to "stringify(DEFAULT_FDT_VERSION)" (for dtb and asm output)",
"\n\tOutput dependency file",
@ -128,6 +131,8 @@ static const char *guess_type_by_name(const char *fname, const char *fallback)
return fallback;
if (!strcasecmp(s, ".dts"))
return "dts";
if (!strcasecmp(s, ".yaml"))
return "yaml";
if (!strcasecmp(s, ".dtb"))
return "dtb";
return fallback;
@ -350,6 +355,12 @@ int main(int argc, char *argv[])
if (streq(outform, "dts")) {
dt_to_source(outf, dti);
#ifndef NO_YAML
} else if (streq(outform, "yaml")) {
if (!streq(inform, "dts"))
die("YAML output format requires dts input format\n");
dt_to_yaml(outf, dti);
#endif
} else if (streq(outform, "dtb")) {
dt_to_blob(outf, dti, outversion);
} else if (streq(outform, "asm")) {