linux-kernel - [RFC PATCH 55/77] dtc: Add orphan nodes in generated dts file

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Message-ID: <20260112142009.1006236-56-herve.codina@bootlin.com>
Date: Mon, 12 Jan 2026 15:19:45 +0100
From: Herve Codina <herve.codina@...tlin.com>
To: David Gibson <david@...son.dropbear.id.au>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Ayush Singh <ayush@...gleboard.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	devicetree-compiler@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree-spec@...r.kernel.org,
	Hui Pu <hui.pu@...ealthcare.com>,
	Ian Ray <ian.ray@...ealthcare.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Herve Codina <herve.codina@...tlin.com>
Subject: [RFC PATCH 55/77] dtc: Add orphan nodes in generated dts file

Orphan nodes parsing from an addon dts file is supported.

Add the support for orphan nodes in the dts file generation.

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 treesource.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/treesource.c b/treesource.c
index 77ff4fb..bc5d847 100644
--- a/treesource.c
+++ b/treesource.c
@@ -384,6 +384,7 @@ void dt_to_source(FILE *f, struct dt_info *dti)
 {
 	struct reserve_info *re;
 	struct symbol *importsym;
+	struct node *orphan;
 
 	fprintf(f, "/dts-v1/;\n");
 	if (dti->dtsflags & DTSF_ADDON)
@@ -410,4 +411,9 @@ void dt_to_source(FILE *f, struct dt_info *dti)
 	}
 
 	write_tree_source_node(f, dti->dt, 0);
+
+	for_each_orphan(dti->orphanlist, orphan) {
+		fprintf(f, "\n");
+		write_tree_source_node(f, orphan, 0);
+	}
 }
-- 
2.52.0