From: FUKAUMI Naoki <naoki@radxa.com>
Date: Wed, 12 Nov 2025 03:51:30 +0000 (+0000)
Subject: arm64: dts: rockchip: Add eeprom vcc-supply for Radxa ROCK 5A
X-Git-Tag: v6.18.2~336
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63d98a936f0f4b723596ae023ba180f495e7b43a;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: rockchip: Add eeprom vcc-supply for Radxa ROCK 5A

[ Upstream commit 3069ff1930aa71e125874c780ffaa6caeda5800a ]

The VCC supply for the BL24C16 EEPROM chip found on Radxa ROCK 5A is
vcc_3v3_pmu, which is routed to vcc_3v3_s3 via a zero-ohm resistor. [1]
Describe this supply.

[1] https://dl.radxa.com/rock5/5a/docs/hw/radxa_rock5a_V1.1_sch.pdf p.4, p.19

Fixes: 89c880808cff8 ("arm64: dts: rockchip: add I2C EEPROM to rock-5a")
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://patch.msgid.link/20251112035133.28753-3-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
index 428c6f0232a34..041a0fff22ccb 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -233,6 +233,7 @@
 		compatible = "belling,bl24c16a", "atmel,24c16";
 		reg = <0x50>;
 		pagesize = <16>;
+		vcc-supply = <&vcc_3v3_pmu>;
 	};
 };
 
@@ -600,7 +601,7 @@
 				};
 			};
 
-			vcc_3v3_s3: dcdc-reg8 {
+			vcc_3v3_pmu: vcc_3v3_s3: dcdc-reg8 {
 				regulator-name = "vcc_3v3_s3";
 				regulator-always-on;
 				regulator-boot-on;