linux-kernel - [PATCH 2/2] arm64: dts: rockchip: Add vcc-supply to SPI flash on rk3566-quartz64-b

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Message-ID: <20250503152917.138648-3-didi.debian@cknow.org>
Date: Sat,  3 May 2025 17:22:19 +0200
From: Diederik de Haas <didi.debian@...ow.org>
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,
	Dragan Simic <dsimic@...jaro.org>,
	Vasily Khoruzhick <anarsoul@...il.com>,
	Tianling Shen <cnsztl@...il.com>,
	Diederik de Haas <didi.debian@...ow.org>
Subject: [PATCH 2/2] arm64: dts: rockchip: Add vcc-supply to SPI flash on rk3566-quartz64-b

The Quartz64 Model B has a Winbound 25Q64DWZPIG SPI flash chip,
identified as 'U13' on the component placement schematic.
In the Quartz 64 Model-B Schematic from 20220124 on page 17, we can see
that the VCC connector is connected to VCCIO_FLASH and page 4 shows that
that in turn is connected to the VCCIO2 domain.
That domain uses vcc_1v8 as its power source.

This fixes the following warning:

  spi-nor spi4.0: supply vcc not found, using dummy regulator

Signed-off-by: Diederik de Haas <didi.debian@...ow.org>
---
 arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
index 5707321a1144..f8cf03380636 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
@@ -648,6 +648,7 @@ flash@0 {
 		spi-max-frequency = <24000000>;
 		spi-rx-bus-width = <4>;
 		spi-tx-bus-width = <1>;
+		vcc-supply = <&vcc_1v8>;
 	};
 };
 
-- 
2.49.0