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

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>

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
index 6388dd6e68f320053958bf9fcaebec9ce9f2bd1b..c1e03b99a00fbe37a1dc66c471858a8af66cd11f 100644 (file)
--- 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>;
        };
 };
 
@@ -608,7 +609,7 @@
                                };
                        };
 
-                       vcc_3v3_s3: dcdc-reg8 {
+                       vcc_3v3_pmu: vcc_3v3_s3: dcdc-reg8 {
                                regulator-name = "vcc_3v3_s3";
                                regulator-always-on;
                                regulator-boot-on;