From: Elaine Zhang <zhangqing@xxxxxxxxxxxxxx>
In order to meet low power requirements, a power management unit (PMU) is
designed for controlling power resources in RK3399. The RK3399 PMU is
dedicated for managing the power of the whole chip.
1. add pd node for RK3399 Soc
2. create power domain tree
3. add qos node for domain
>From the DT/binds and driver can get more detail information:
The driver:
drivers/soc/rockchip/pm_domains.c
The document:
Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
---
Tested on vop and gpu devices added for next kernel.
PD:
localhost / # cat sys/kernel/debug/pm_genpd/pm_genpd_summary
domain status slaves
/device runtime status
----------------------------------------------------------------------
pd_gpu on
/devices/platform/ff9a0000.gpu active
pd_vopl off
/devices/platform/ff8f0000.vop suspended
pd_vopb off
/devices/platform/ff900000.vop suspended
pd_vo off pd_vopb, pd_vopl
pd_hdcp off
...
pd_iep off
pd_vcodec off
pd_vdu off
QOS:
localhost / # cat sys/kernel/debug/pm_qos/
cpu_dma_latency network_latency
memory_bandwidth network_throughput
Signed-off-by: Elaine Zhang <zhangqing at rock-chips.com>
Signed-off-by: Caesar Wang <wxt at rock-chips.com>
---
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 153 +++++++++++++++++++++++++++++++
1 file changed, 153 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index a6dd623..cc4035e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -45,6 +45,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/power/rk3399-power.h>
#include <dt-bindings/thermal/thermal.h>
/ {
@@ -594,6 +595,158 @@
status = "disabled";
};
+ qos_gpu: qos_gpu at ffae0000 {
+ compatible = "syscon";
+ reg = <0x0 0xffae0000 0x0 0x20>;
+ };
+ qos_video_m0: qos_video_m0 at ffab8000 {
+ compatible = "syscon";
+ reg = <0x0 0xffab8000 0x0 0x20>;
+ };
+ qos_video_m1_r: qos_video_m1_r at ffac0000 {
+ compatible = "syscon";
+ reg = <0x0 0xffac0000 0x0 0x20>;
+ };
+ qos_video_m1_w: qos_video_m1_w at ffac0080 {
+ compatible = "syscon";
+ reg = <0x0 0xffac0080 0x0 0x20>;
+ };
+ qos_rga_r: qos_rga_r at ffab0000 {
+ compatible = "syscon";
+ reg = <0x0 0xffab0000 0x0 0x20>;
+ };
+ qos_rga_w: qos_rga_w at ffab0080 {
+ compatible = "syscon";
+ reg = <0x0 0xffab0080 0x0 0x20>;
+ };
+ qos_iep: qos_iep at ffa98000 {
+ compatible = "syscon";
+ reg = <0x0 0xffa98000 0x0 0x20>;
+ };
+ qos_vop_big_r: qos_vop_big_r at ffac8000 {
+ compatible = "syscon";
+ reg = <0x0 0xffac8000 0x0 0x20>;
+ };
+ qos_vop_big_w: qos_vop_big_w at ffac8080 {
+ compatible = "syscon";
+ reg = <0x0 0xffac8080 0x0 0x20>;
+ };
+ qos_vop_little: qos_vop_little at ffad0000 {
+ compatible = "syscon";
+ reg = <0x0 0xffad0000 0x0 0x20>;
+ };
+ qos_isp0_m0: qos_isp0_m0 at ffaa0000 {
+ compatible = "syscon";
+ reg = <0x0 0xffaa0000 0x0 0x20>;
+ };
+ qos_isp0_m1: qos_isp0_m1 at ffaa0080 {
+ compatible = "syscon";
+ reg = <0x0 0xffaa0080 0x0 0x20>;
+ };
+ qos_isp1_m0: qos_isp1_m0 at ffaa8000 {
+ compatible = "syscon";
+ reg = <0x0 0xffaa8000 0x0 0x20>;
+ };
+ qos_isp1_m1: qos_isp1_m1 at ffaa8080 {
+ compatible = "syscon";
+ reg = <0x0 0xffaa8080 0x0 0x20>;
+ };
+ qos_hdcp: qos_hdcp at ffa90000 {
+ compatible = "syscon";
+ reg = <0x0 0xffa90000 0x0 0x20>;
+ };
+
+ pmu: power-management at ff310000 {
+ compatible = "rockchip,rk3399-pmu", "syscon", "simple-mfd";
+ reg = <0x0 0xff310000 0x0 0x1000>;
+
+ power: power-controller {
+ status = "okay";
+ compatible = "rockchip,rk3399-power-controller";
+ #power-domain-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pd_vdu {
+ reg = <RK3399_PD_VDU>;
+ clocks = <&cru ACLK_VDU>,
+ <&cru HCLK_VDU>;
+ pm_qos = <&qos_video_m1_r>,
+ <&qos_video_m1_w>;
+ };
+ pd_vcodec {
+ reg = <RK3399_PD_VCODEC>;
+ clocks = <&cru ACLK_VCODEC>,
+ <&cru HCLK_VCODEC>;
+ pm_qos = <&qos_video_m0>;
+ };
+ pd_iep {
+ reg = <RK3399_PD_IEP>;
+ clocks = <&cru ACLK_IEP>,
+ <&cru HCLK_IEP>;
+ pm_qos = <&qos_iep>;
+ };
+ pd_rga {
+ reg = <RK3399_PD_RGA>;
+ clocks = <&cru ACLK_RGA>,
+ <&cru HCLK_RGA>;
+ pm_qos = <&qos_rga_r>,
+ <&qos_rga_w>;
+ };
+ pd_vio {
+ reg = <RK3399_PD_VIO>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pd_isp0 {
+ reg = <RK3399_PD_ISP0>;
+ clocks = <&cru ACLK_ISP0>,
+ <&cru HCLK_ISP0>;
+ pm_qos = <&qos_isp0_m0>,
+ <&qos_isp0_m1>;
+ };
+ pd_isp1 {
+ reg = <RK3399_PD_ISP1>;
+ clocks = <&cru ACLK_ISP1>,
+ <&cru HCLK_ISP1>;
+ pm_qos = <&qos_isp1_m0>,
+ <&qos_isp1_m1>;
+ };
+ pd_hdcp {
+ reg = <RK3399_PD_HDCP>;
+ clocks = <&cru ACLK_HDCP>,
+ <&cru HCLK_HDCP>,
+ <&cru PCLK_HDCP>;
+ pm_qos = <&qos_hdcp>;
+ };
+ pd_vo {
+ reg = <RK3399_PD_VO>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pd_vopb {
+ reg = <RK3399_PD_VOPB>;
+ clocks = <&cru ACLK_VOP0>,
+ <&cru HCLK_VOP0>;
+ pm_qos = <&qos_vop_big_r>,
+ <&qos_vop_big_w>;
+ };
+ pd_vopl {
+ reg = <RK3399_PD_VOPL>;
+ clocks = <&cru ACLK_VOP1>,
+ <&cru HCLK_VOP1>;
+ pm_qos = <&qos_vop_little>;
+ };
+ };
+ };
+ pd_gpu {
+ reg = <RK3399_PD_GPU>;
+ clocks = <&cru ACLK_GPU>;
+ pm_qos = <&qos_gpu>;
+ };
+ };
+ };
+
pmugrf: syscon at ff320000 {
compatible = "rockchip,rk3399-pmugrf", "syscon", "simple-mfd";
reg = <0x0 0xff320000 0x0 0x1000>;
--
1.9.1
