linux-kernel - [PATCH 4/9] arm64: dts: rockchip: Add power controller for RK3528

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Message-ID: <20250518220707.669515-5-jonas@kwiboo.se>
Date: Sun, 18 May 2025 22:06:51 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Yao Zi <ziyao@...root.org>,
	Chukun Pan <amadeus@....edu.cn>,
	linux-rockchip@...ts.infradead.org,
	linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Jonas Karlman <jonas@...boo.se>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/9] arm64: dts: rockchip: Add power controller for RK3528

Add power-domain nodes for the power controller on RK3528.

Only PD_GPU can fully be powered down. PD_RKVDEC, PD_RKVENC, PD_VO and
PD_VPU are idle only power domains used by miscellaneous devices.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
Because multiple of the miscellaneous device types currently complain
about the use of a power-domains prop, only PD_GPU is enabled.
---
 arch/arm64/boot/dts/rockchip/rk3528.dtsi | 65 ++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index b2724c969a76..c13a6a566164 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/rockchip.h>
 #include <dt-bindings/clock/rockchip,rk3528-cru.h>
+#include <dt-bindings/power/rockchip,rk3528-power.h>
 #include <dt-bindings/reset/rockchip,rk3528-cru.h>
 
 / {
@@ -371,6 +372,70 @@ ioc_grf: syscon@...40000 {
 			reg = <0x0 0xff540000 0x0 0x40000>;
 		};
 
+		pmu: power-management@...00000 {
+			compatible = "rockchip,rk3528-pmu", "syscon", "simple-mfd";
+			reg = <0x0 0xff600000 0x0 0x2000>;
+
+			power: power-controller {
+				compatible = "rockchip,rk3528-power-controller";
+				#power-domain-cells = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				/* These power domains are grouped by VD_GPU */
+				power-domain@...528_PD_GPU {
+					reg = <RK3528_PD_GPU>;
+					clocks = <&cru ACLK_GPU_MALI>,
+						 <&cru PCLK_GPU_ROOT>;
+					pm_qos = <&qos_gpu_m0>,
+						 <&qos_gpu_m1>;
+					#power-domain-cells = <0>;
+				};
+
+				/* These power domains are grouped by VD_LOGIC */
+				power-domain@...528_PD_RKVDEC {
+					reg = <RK3528_PD_RKVDEC>;
+					pm_qos = <&qos_rkvdec>;
+					#power-domain-cells = <0>;
+					status = "disabled";
+				};
+				power-domain@...528_PD_RKVENC {
+					reg = <RK3528_PD_RKVENC>;
+					pm_qos = <&qos_rkvenc>;
+					#power-domain-cells = <0>;
+					status = "disabled";
+				};
+				power-domain@...528_PD_VO {
+					reg = <RK3528_PD_VO>;
+					pm_qos = <&qos_gmac0>,
+						 <&qos_hdcp>,
+						 <&qos_jpegdec>,
+						 <&qos_rga2_m0ro>,
+						 <&qos_rga2_m0wo>,
+						 <&qos_sdmmc0>,
+						 <&qos_usb2host>,
+						 <&qos_vdpp>,
+						 <&qos_vop>;
+					#power-domain-cells = <0>;
+					status = "disabled";
+				};
+				power-domain@...528_PD_VPU {
+					reg = <RK3528_PD_VPU>;
+					pm_qos = <&qos_emmc>,
+						 <&qos_fspi>,
+						 <&qos_gmac1>,
+						 <&qos_pcie>,
+						 <&qos_sdio0>,
+						 <&qos_sdio1>,
+						 <&qos_tsp>,
+						 <&qos_usb3otg>,
+						 <&qos_vpu>;
+					#power-domain-cells = <0>;
+					status = "disabled";
+				};
+			};
+		};
+
 		uart0: serial@...f0000 {
 			compatible = "rockchip,rk3528-uart", "snps,dw-apb-uart";
 			reg = <0x0 0xff9f0000 0x0 0x100>;
-- 
2.49.0