Create 0001-rockchip-rk3566-orangepi-3b-enable-npu-regulator.patch

patch/u-boot/v2024.10/board_100ask-rk3568/0001-rockchip-rk3566-orangepi-3b-enable-npu-regulator.patch

@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jonas Karlman <[email protected]>
+Date: Wed, 14 Aug 2024 21:35:16 +0000
+Subject: rockchip: rk3566-orangepi-3b: enable npu regulator
+
+The power-domain driver in Linux does not know what regulator is
+supplying power to a specific power-domain. This prevent use of NPU with
+vendor kernel because vdd_npu is disabled.
+
+Change vdd_npu to use always-on/boot-on to enable the regulator at boot
+and set initial 0v9 voltage, the recommended voltage in soc datasheet.
+
+Signed-off-by: Jonas Karlman <[email protected]>
+---
+ arch/arm/dts/rk3566-orangepi-3b-u-boot.dtsi | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/arch/arm/dts/rk3566-orangepi-3b-u-boot.dtsi b/arch/arm/dts/rk3566-orangepi-3b-u-boot.dtsi
+index 111111111111..222222222222 100644
+--- a/arch/arm/dts/rk3566-orangepi-3b-u-boot.dtsi
++++ b/arch/arm/dts/rk3566-orangepi-3b-u-boot.dtsi
+@@ -12,3 +12,9 @@
+ 		bootph-some-ram;
+ 	};
+ };
++
++&vdd_npu {
++	regulator-always-on;
++	regulator-boot-on;
++	regulator-init-microvolt = <900000>;
++};
+-- 
+Armbian