linux-kernel - [PATCH v2] arm64: dts: rockchip: Add vcc supply for SPI Flash on NanoPC-T6

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Message-Id: <20250905-nanopc-t6-spi-nor-v2-1-098b476d9509@juszkiewicz.com.pl>
Date: Fri, 05 Sep 2025 21:01:51 +0200
From: Marcin Juszkiewicz <marcin@...zkiewicz.com.pl>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Marcin Juszkiewicz <marcin@...zkiewicz.com.pl>
Subject: [PATCH v2] arm64: dts: rockchip: Add vcc supply for SPI Flash on
 NanoPC-T6

FriendlyELEC NanoPC-T6 LTS schematics shows VCC_1V8_S3 being used to
power SPI NOR chip.

This fixes the following kernel message:

spi-nor spi5.0: supply vcc not found, using dummy regulator

Signed-off-by: Marcin Juszkiewicz <marcin@...zkiewicz.com.pl>
Message-ID: <1652891b3fd7e1d1a279a3eb0e7a05ac763e48fb.1757097941.git.mjuszkiewicz@...hat.com>
---
FriendlyELEC NanoPC-T6 LTS schematics shows VCC_1V8_S3 being used to
power SPI NOR chip.

This fixes the following kernel message:

spi-nor spi5.0: supply vcc not found, using dummy regulator
---
Changes in v2:
- fixed format of "vcc-supply" field
---
 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
index 3d8b6f0c55418805c0d614a4d65f67b0c660ca0f..69833a0a94d0f18d9ca86005ac22e58f4c036fa8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
@@ -731,6 +731,7 @@ flash@0 {
 		spi-max-frequency = <104000000>;
 		spi-rx-bus-width = <4>;
 		spi-tx-bus-width = <1>;
+		vcc-supply = <&vcc_1v8_s3>;
 	};
 };
 

---
base-commit: 4ac65880ebca1b68495bd8704263b26c050ac010
change-id: 20250905-nanopc-t6-spi-nor-70ddcd62f9f7

Best regards,
-- 
Marcin Juszkiewicz <marcin@...zkiewicz.com.pl>