From: Quentin Schulz <quentin.schulz@cherry.de>
Date: Tue, 18 Feb 2025 11:49:17 +0000 (+0100)
Subject: arm64: dts: rockchip: add EEPROM found on RK3399 Puma Haikou
X-Git-Tag: v6.15-rc1~159^2~23^2~45
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef32404f99c5155044f4903c5441167f52aeb152;p=thirdparty%2Flinux.git

arm64: dts: rockchip: add EEPROM found on RK3399 Puma Haikou

The Haikou carrierboard has an EEPROM on LVDS_BLC_CLK/DAT which are
signals that can carry either I2C or be used as HPD for eDP0/1.

Only eDP0 is routed from RK3399 Puma SoM but only exposed on Haikou
through the Video Connector, a fake PCIe connector. So to be able to use
eDP one would need to use a Device Tree overlay. Therefore, let's
default to having an EEPROM in Haikou carrierboard DTS.

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://lore.kernel.org/r/20250218-tsd-align-haikou-v1-6-5c44d1dd8658@cherry.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 28d24caffe12f..300529bdad1db 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -189,6 +189,16 @@
 	};
 };
 
+&i2c7 {
+	eeprom@50 {
+		reg = <0x50>;
+		compatible = "atmel,24c01";
+		pagesize = <8>;
+		size = <128>;
+		vcc-supply = <&vcc3v3_baseboard>;
+	};
+};
+
 &i2s0 {
 	status = "okay";
 };