[PATCH] dtc: Allow overlays to have .dtbo extension

[Viresh Kumar]

Allow the overlays to have .dtbo extension instead of just .dtb. This
allows them to be identified easily by tools as well as humans.

Allow the dtbo outform in dtc.c for the same.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

---
Hello,

This was earlier posted for the Linux Kernel and here is the thread
where Rob gave his feedback:

https://lore.kernel.org/lkml/CAL_Jsq+0dL=LHo8r9mY_weBP_bQ97UOBnt596J3JoVHwGNinHA@xxxxxxxxxxxxxx/
---
 dtc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dtc.c b/dtc.c
index bdb3f5945699..838c5df96c00 100644
--- a/dtc.c
+++ b/dtc.c
@@ -122,6 +122,8 @@ static const char *guess_type_by_name(const char *fname, const char *fallback)
 		return "dts";
 	if (!strcasecmp(s, ".yaml"))
 		return "yaml";
+	if (!strcasecmp(s, ".dtbo"))
+		return "dtb";
 	if (!strcasecmp(s, ".dtb"))
 		return "dtb";
 	return fallback;
@@ -357,6 +359,8 @@ int main(int argc, char *argv[])
 #endif
 	} else if (streq(outform, "dtb")) {
 		dt_to_blob(outf, dti, outversion);
+	} else if (streq(outform, "dtbo")) {
+		dt_to_blob(outf, dti, outversion);
 	} else if (streq(outform, "asm")) {
 		dt_to_asm(outf, dti, outversion);
 	} else if (streq(outform, "null")) {
-- 
2.25.0.rc1.19.g042ed3e048af