linux-kernel - [PATCH v2] arm64: dts: renesas: rzg2lc-smarc: Disable CAN-FD channel0

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Message-ID: <20250801121959.267424-1-biju.das.jz@bp.renesas.com>
Date: Fri,  1 Aug 2025 13:19:53 +0100
From: Biju <biju.das.au@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Biju Das <biju.das.jz@...renesas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Biju Das <biju.das.au@...il.com>
Subject: [PATCH v2] arm64: dts: renesas: rzg2lc-smarc: Disable CAN-FD channel0

From: Biju Das <biju.das.jz@...renesas.com>

On RZ/G2LC SMARC EVK, CAN-FD channel0 is not populated and channel0 is
a required property. Currently we are deleting a wrong node. Fixing the
wrong node invoked dtb warning message. Disable CAN-FD channel0 instead
of deleting the node.

Fixes: 46da632734a5 ("arm64: dts: renesas: rzg2lc-smarc: Enable CANFD channel 1")
Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
---
v1->v2:
 * Updated the commit header and description.
 * Fixed the bot warning by disabling the channel instead of deleting it.
---
 arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
index 345b779e4f60..0d357516e0be 100644
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
@@ -48,7 +48,9 @@ sound_card {
 #if (SW_SCIF_CAN || SW_RSPI_CAN)
 &canfd {
 	pinctrl-0 = <&can1_pins>;
-	/delete-node/ channel@0;
+	channel0 {
+		status = "disabled";
+	};
 };
 #else
 &canfd {
-- 
2.43.0