From e0d47ff478fa549aeb168d921b66011f0397007d Mon Sep 17 00:00:00 2001 From: Chris Morgan Date: Tue, 3 Jun 2025 21:41:19 -0500 Subject: [PATCH] arm64: dts: rockchip: Document unused device on i2c1 Update the i2c1 bus noting that the unknown/unused device at 0x3c is an iSmartWare SW2001 "encryption IC". Based on the documentation I was able to find, this IC appears to be used to authenticate a device for certain programs to ensure they only run on authorized devices as a form of digital rights management. Signed-off-by: Chris Morgan Link: https://lore.kernel.org/r/20250604024119.381337-1-macroalpha82@gmail.com Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi index 233eade30f211..645db9d3d2972 100644 --- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi @@ -469,7 +469,7 @@ }; &i2c1 { - /* Unknown/unused device at 0x3c */ + /* Unused iSmartWare SW2001 encryption device at 0x3c */ status = "disabled"; }; -- 2.39.5