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charset="utf-8" Message-Id: <20261112-h616-zero2-dt-v3-7-1cd2664230c8@gmail.com> References: <20261112-h616-zero2-dt-v3-0-1cd2664230c8@gmail.com> In-Reply-To: <20261112-h616-zero2-dt-v3-0-1cd2664230c8@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Ryan Walklin , Andre Przywara Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Arun Iyengar X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1794475350; l=1094; i=aiyengar1990@gmail.com; s=20261110; h=from:subject:message-id; bh=koI5LGgxBRvtt44PpABti87vN3ELbNOlU9mgjrDscGI=; b=bA8JUFUa3d6iI+xHYYsxVNtM7HtovRgLm6fMnexLvlvWB6RAVaZCH86+PEpzbGK0qVtBhrLTj HJSH8S9WM2rCVT3L2b3X1uZ+XDqyWMC18NABBNlthwVONcI+xmS43a0 X-Developer-Key: i=aiyengar1990@gmail.com; a=ed25519; pk=zXpRgUTrhaFe6jLyPqbBy3ccfkj04w0g2690Wv3mg+0= X-Endpoint-Received: by B4 Relay for aiyengar1990@gmail.com/20261110 with auth_id=1480 X-Original-From: Arun Iyengar Reply-To: aiyengar1990@gmail.com Content-Transfer-Encoding: 7bit From: Arun Iyengar 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 --- 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 = <®_aldo1>; vcc-pi-supply = <®_aldo1>; }; + +&spi0 { + flash@0 { + vcc-supply = <®_aldo1>; + }; +}; -- 2.55.0