From e82f642b9821384045915dc30e73df7de8424827 Mon Sep 17 00:00:00 2001 From: Quentin Schulz Date: Fri, 27 Jun 2025 12:53:57 +0200 Subject: [PATCH] arm64: dts: rockchip: force PMIC reset behavior to restart PMU on RK3588 Tiger The bootloader for RK3588 Tiger currently forces the PMIC reset behavior (stored in RST_FUN bitfield in register SYS_CFG3 of the PMIC) to 0b1X which is incorrect for our devices. It is required to restart the PMU as otherwise the companion microcontroller cannot detect the PMIC (and by extension the full product and main SoC) being rebooted which is an issue as that is used to reset a few things like the PWM beeper and watchdogs. Let's add the new rockchip,reset-mode property to make sure the PMIC reset behavior is the expected one. Signed-off-by: Quentin Schulz Link: https://lore.kernel.org/r/20250627-rk8xx-rst-fun-v4-5-ce05d041b45f@cherry.de Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi index c4933a08dd1e3..b44e89e1bb159 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi @@ -6,6 +6,7 @@ #include #include #include +#include "rk8xx.h" #include "rk3588.dtsi" / { @@ -440,6 +441,7 @@ vcc13-supply = <&vcc_1v1_nldo_s3>; vcc14-supply = <&vcc_1v1_nldo_s3>; vcca-supply = <&vcc5v0_sys>; + rockchip,reset-mode = ; rk806_dvs1_null: dvs1-null-pins { pins = "gpio_pwrctrl1"; -- 2.47.2