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From: Arun Iyengar via B4 Relay <devnull+aiyengar1990.gmail.com@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Chen-Yu Tsai <wens@kernel.org>,
	 Jernej Skrabec <jernej.skrabec@gmail.com>,
	 Samuel Holland <samuel@sholland.org>,
	Ryan Walklin <ryan@testtoast.com>,
	 Andre Przywara <andre.przywara@arm.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	 Arun Iyengar <aiyengar1990@gmail.com>
Subject: [PATCH 7/8] arm64: dts: allwinner: orangepi-zero2: Describe the SPI NOR supply
Date: Tue, 10 Nov 2026 05:37:01 +0000	[thread overview]
Message-ID: <20261110-h616-zero2-dt-v1-7-05506d760f21@gmail.com> (raw)
In-Reply-To: <20261110-h616-zero2-dt-v1-0-05506d760f21@gmail.com>

From: Arun Iyengar <aiyengar1990@gmail.com>

The SPI NOR core requests a "vcc" supply for the flash. It is not
described for the Orange Pi Zero2, so the core falls back to a dummy
regulator and logs at boot:

  spi-nor spi0.0: supply vcc not found, using dummy regulator

Per the Orange Pi Zero2 v1.3 schematic, the 2 MiB SPI NOR flash on SPI0
(port PC) is powered from the 3.3 V VCC-IO rail generated by ALDO1,
which already supplies port PC here. Describe it.

Signed-off-by: Arun Iyengar <aiyengar1990@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
index ca78d094c431..d5d39bac5915 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
@@ -148,3 +148,9 @@ &pio {
 	vcc-ph-supply = <&reg_aldo1>;
 	vcc-pi-supply = <&reg_aldo1>;
 };
+
+&spi0 {
+	flash@0 {
+		vcc-supply = <&reg_aldo1>;
+	};
+};

-- 
2.55.0



  parent reply	other threads:[~2026-11-10  5:36 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-10  5:36 [PATCH 0/8] arm64: dts: allwinner: h616: Orange Pi Zero2 fixes, GPU DVFS and GPU cooling Arun Iyengar via B4 Relay
2026-11-10  5:36 ` [PATCH 1/8] arm64: dts: allwinner: h616: Cover the codec RAMP register Arun Iyengar via B4 Relay
2026-11-10  5:36 ` [PATCH 2/8] arm64: dts: allwinner: orangepi-zero2: Let the PHY add the RX delay Arun Iyengar via B4 Relay
2026-11-10  5:36 ` [PATCH 3/8] arm64: dts: allwinner: h616: Add GPU OPP table Arun Iyengar via B4 Relay
2026-11-10  5:36 ` [PATCH 4/8] arm64: dts: allwinner: h616: Throttle the GPU from the GPU thermal zone Arun Iyengar via B4 Relay
2026-11-10  5:36 ` [PATCH 5/8] arm64: dts: allwinner: orangepi-zero2: Keep VDD-SYS at or above 900 mV Arun Iyengar via B4 Relay
2026-11-10  5:37 ` [PATCH 6/8] arm64: dts: allwinner: orangepi-zero2: Enable GPU DVFS Arun Iyengar via B4 Relay
2026-11-10  5:37 ` Arun Iyengar via B4 Relay [this message]
2026-11-10  5:37 ` [PATCH 8/8] arm64: dts: allwinner: orangepi-zero2: Add i2c aliases Arun Iyengar via B4 Relay

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