[PATCH v1 2/3] dt-bindings: Convert the rockchip power_domain to YAML and extend
From: Elaine Zhang
Date: Tue Mar 16 2021 - 22:53:06 EST
This converts the rockchip power domain family bindings to YAML schema,
and add binding documentation for the power domains found on Rockchip
RK3568 SoCs.
Signed-off-by: Elaine Zhang <zhangqing@xxxxxxxxxxxxxx>
---
.../bindings/soc/rockchip/power_domain.txt | 136 ------------
.../rockchip/rockchip,power-controller.yaml | 196 ++++++++++++++++++
2 files changed, 196 insertions(+), 136 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
create mode 100644 Documentation/devicetree/bindings/soc/rockchip/rockchip,power-controller.yaml
diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
deleted file mode 100644
index 8304eceb62e4..000000000000
--- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
+++ /dev/null
@@ -1,136 +0,0 @@
-* Rockchip Power Domains
-
-Rockchip processors include support for multiple power domains which can be
-powered up/down by software based on different application scenes to save power.
-
-Required properties for power domain controller:
-- compatible: Should be one of the following.
- "rockchip,px30-power-controller" - for PX30 SoCs.
- "rockchip,rk3036-power-controller" - for RK3036 SoCs.
- "rockchip,rk3066-power-controller" - for RK3066 SoCs.
- "rockchip,rk3128-power-controller" - for RK3128 SoCs.
- "rockchip,rk3188-power-controller" - for RK3188 SoCs.
- "rockchip,rk3228-power-controller" - for RK3228 SoCs.
- "rockchip,rk3288-power-controller" - for RK3288 SoCs.
- "rockchip,rk3328-power-controller" - for RK3328 SoCs.
- "rockchip,rk3366-power-controller" - for RK3366 SoCs.
- "rockchip,rk3368-power-controller" - for RK3368 SoCs.
- "rockchip,rk3399-power-controller" - for RK3399 SoCs.
-- #power-domain-cells: Number of cells in a power-domain specifier.
- Should be 1 for multiple PM domains.
-- #address-cells: Should be 1.
-- #size-cells: Should be 0.
-
-Required properties for power domain sub nodes:
-- reg: index of the power domain, should use macros in:
- "include/dt-bindings/power/px30-power.h" - for PX30 type power domain.
- "include/dt-bindings/power/rk3036-power.h" - for RK3036 type power domain.
- "include/dt-bindings/power/rk3066-power.h" - for RK3066 type power domain.
- "include/dt-bindings/power/rk3128-power.h" - for RK3128 type power domain.
- "include/dt-bindings/power/rk3188-power.h" - for RK3188 type power domain.
- "include/dt-bindings/power/rk3228-power.h" - for RK3228 type power domain.
- "include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain.
- "include/dt-bindings/power/rk3328-power.h" - for RK3328 type power domain.
- "include/dt-bindings/power/rk3366-power.h" - for RK3366 type power domain.
- "include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain.
- "include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain.
-- clocks (optional): phandles to clocks which need to be enabled while power domain
- switches state.
-- pm_qos (optional): phandles to qos blocks which need to be saved and restored
- while power domain switches state.
-
-Qos Example:
-
- qos_gpu: qos_gpu@ffaf0000 {
- compatible ="syscon";
- reg = <0x0 0xffaf0000 0x0 0x20>;
- };
-
-Example:
-
- power: power-controller {
- compatible = "rockchip,rk3288-power-controller";
- #power-domain-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- pd_gpu {
- reg = <RK3288_PD_GPU>;
- clocks = <&cru ACLK_GPU>;
- pm_qos = <&qos_gpu>;
- };
- };
-
- power: power-controller {
- compatible = "rockchip,rk3368-power-controller";
- #power-domain-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- pd_gpu_1 {
- reg = <RK3368_PD_GPU_1>;
- clocks = <&cru ACLK_GPU_CFG>;
- };
- };
-
-Example 2:
- power: power-controller {
- compatible = "rockchip,rk3399-power-controller";
- #power-domain-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- pd_vio {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <RK3399_PD_VIO>;
-
- pd_vo {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <RK3399_PD_VO>;
-
- pd_vopb {
- reg = <RK3399_PD_VOPB>;
- };
-
- pd_vopl {
- reg = <RK3399_PD_VOPL>;
- };
- };
- };
- };
-
-Node of a device using power domains must have a power-domains property,
-containing a phandle to the power device node and an index specifying which
-power domain to use.
-The index should use macros in:
- "include/dt-bindings/power/px30-power.h" - for px30 type power domain.
- "include/dt-bindings/power/rk3036-power.h" - for rk3036 type power domain.
- "include/dt-bindings/power/rk3128-power.h" - for rk3128 type power domain.
- "include/dt-bindings/power/rk3128-power.h" - for rk3228 type power domain.
- "include/dt-bindings/power/rk3288-power.h" - for rk3288 type power domain.
- "include/dt-bindings/power/rk3328-power.h" - for rk3328 type power domain.
- "include/dt-bindings/power/rk3366-power.h" - for rk3366 type power domain.
- "include/dt-bindings/power/rk3368-power.h" - for rk3368 type power domain.
- "include/dt-bindings/power/rk3399-power.h" - for rk3399 type power domain.
-
-Example of the node using power domain:
-
- node {
- /* ... */
- power-domains = <&power RK3288_PD_GPU>;
- /* ... */
- };
-
- node {
- /* ... */
- power-domains = <&power RK3368_PD_GPU_1>;
- /* ... */
- };
-
- node {
- /* ... */
- power-domains = <&power RK3399_PD_VOPB>;
- /* ... */
- };
diff --git a/Documentation/devicetree/bindings/soc/rockchip/rockchip,power-controller.yaml b/Documentation/devicetree/bindings/soc/rockchip/rockchip,power-controller.yaml
new file mode 100644
index 000000000000..c9c8058d17ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/rockchip/rockchip,power-controller.yaml
@@ -0,0 +1,196 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+# %YAML 1.2
+---
+$id: http://devicetree.org/soc/rockchip/rockchip,power-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rcokchip Generic PM domains
+
+maintainers:
+ - Rob Herring <robh+dt@xxxxxxxxxx>
+ - Heiko Stuebner <heiko@xxxxxxxxx>
+
+description: |
+ Rockchip processors include support for multiple power domains which can be
+ powered up/down by software based on different application scenes to save power.
+
+ IP cores belonging to a power domain should contain a 'power-domains'
+ property that is a phandle for SCPSYS node representing the domain.
+
+properties:
+ $nodename:
+ const: power-controller
+
+ compatible:
+ enum:
+ - rockchip,px30-power-controller
+ - rockchip,rk3036-power-controller
+ - rockchip,rk3066-power-controller
+ - rockchip,rk3128-power-controller
+ - rockchip,rk3188-power-controller
+ - rockchip,rk3228-power-controller
+ - rockchip,rk3288-power-controller
+ - rockchip,rk3328-power-controller
+ - rockchip,rk3366-power-controller
+ - rockchip,rk3368-power-controller
+ - rockchip,rk3399-power-controller
+ - rockchip,rk3568-power-controller
+
+ '#power-domain-cells':
+ const: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ "^power-domain@[0-9a-f]+$":
+ type: object
+ description: |
+ Represents the power domains within the power controller node as documented
+ in Documentation/devicetree/bindings/power/power-domain.yaml.
+
+ properties:
+
+ '#power-domain-cells':
+ description:
+ Must be 0 for nodes representing a single PM domain and 1 for nodes
+ providing multiple PM domains.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ reg:
+ description: |
+ Power domain index. Valid values are defined in:
+ "include/dt-bindings/power/px30-power.h" - for PX30 type power domain.
+ "include/dt-bindings/power/rk3036-power.h" - for RK3036 type power domain.
+ "include/dt-bindings/power/rk3066-power.h" - for RK3066 type power domain.
+ "include/dt-bindings/power/rk3128-power.h" - for RK3128 type power domain.
+ "include/dt-bindings/power/rk3188-power.h" - for RK3188 type power domain.
+ "include/dt-bindings/power/rk3228-power.h" - for RK3228 type power domain.
+ "include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain.
+ "include/dt-bindings/power/rk3328-power.h" - for RK3328 type power domain.
+ "include/dt-bindings/power/rk3366-power.h" - for RK3366 type power domain.
+ "include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain.
+ "include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain.
+ "include/dt-bindings/power/rk3568-power.h" - for RK3568 type power domain.
+ maxItems: 1
+
+ clocks:
+ description: |
+ A number of phandles to clocks that need to be enabled during domain
+ power-up sequencing.
+
+ clock-names:
+ description: |
+ List of names of clocks, in order to match the power-up sequencing
+ for each power domain we need to group the clocks by name. BASIC
+ clocks need to be enabled before enabling the corresponding power
+ domain.
+
+ pm_qos:
+ description: |
+ A number of phandles for qos registers that need to be save and restor during domain
+ power-up sequencing.
+
+ additionalProperties: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ pmu: power-management@fdd90000 {
+ compatible = "rockchip,rk3568-pmu", "syscon", "simple-mfd";
+ reg = <0xfdd90000 0x1000>;
+
+ power: power-controller {
+ compatible = "rockchip,rk3568-power-controller";
+ #power-domain-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ /* These power domains are grouped by VD_NPU */
+ pd_npu@RK3568_PD_NPU {
+ reg = <RK3568_PD_NPU>;
+ clocks = <&cru ACLK_NPU_PRE>,
+ <&cru HCLK_NPU_PRE>,
+ <&cru PCLK_NPU_PRE>;
+ pm_qos = <&qos_npu>;
+ };
+ /* These power domains are grouped by VD_GPU */
+ pd_gpu@RK3568_PD_GPU {
+ reg = <RK3568_PD_GPU>;
+ clocks = <&cru ACLK_GPU_PRE>,
+ <&cru PCLK_GPU_PRE>;
+ pm_qos = <&qos_gpu>;
+ };
+ /* These power domains are grouped by VD_LOGIC */
+ pd_vi@RK3568_PD_VI {
+ reg = <RK3568_PD_VI>;
+ clocks = <&cru HCLK_VI>,
+ <&cru PCLK_VI>;
+ pm_qos = <&qos_isp>,
+ <&qos_vicap0>,
+ <&qos_vicap1>;
+ };
+ pd_vo@RK3568_PD_VO {
+ reg = <RK3568_PD_VO>;
+ clocks = <&cru HCLK_VO>,
+ <&cru PCLK_VO>,
+ <&cru ACLK_VOP_PRE>;
+ pm_qos = <&qos_hdcp>,
+ <&qos_vop_m0>,
+ <&qos_vop_m1>;
+ };
+ pd_rga@RK3568_PD_RGA {
+ reg = <RK3568_PD_RGA>;
+ clocks = <&cru HCLK_RGA_PRE>,
+ <&cru PCLK_RGA_PRE>;
+ pm_qos = <&qos_ebc>,
+ <&qos_iep>,
+ <&qos_jpeg_dec>,
+ <&qos_jpeg_enc>,
+ <&qos_rga_rd>,
+ <&qos_rga_wr>;
+ };
+ pd_vpu@RK3568_PD_VPU {
+ reg = <RK3568_PD_VPU>;
+ clocks = <&cru HCLK_VPU_PRE>;
+ pm_qos = <&qos_vpu>;
+ };
+ pd_rkvdec@RK3568_PD_RKVDEC {
+ clocks = <&cru HCLK_RKVDEC_PRE>;
+ reg = <RK3568_PD_RKVDEC>;
+ pm_qos = <&qos_rkvdec>;
+ };
+ pd_rkvenc@RK3568_PD_RKVENC {
+ reg = <RK3568_PD_RKVENC>;
+ clocks = <&cru HCLK_RKVENC_PRE>;
+ pm_qos = <&qos_rkvenc_rd_m0>,
+ <&qos_rkvenc_rd_m1>,
+ <&qos_rkvenc_wr_m0>;
+ };
+ pd_pipe@RK3568_PD_PIPE {
+ reg = <RK3568_PD_PIPE>;
+ clocks = <&cru PCLK_PIPE>;
+ pm_qos = <&qos_pcie2x1>,
+ <&qos_pcie3x1>,
+ <&qos_pcie3x2>,
+ <&qos_sata0>,
+ <&qos_sata1>,
+ <&qos_sata2>,
+ <&qos_usb3_0>,
+ <&qos_usb3_1>;
+ };
+ };
+ };
--
2.17.1