From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- .../bindings/soc/qcom/qcom,rpmh-rsc.yaml | 261 +++++++++++++++++++++ 1 file changed, 261 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml (limited to 'Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml') diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml new file mode 100644 index 000000000..4a50f1d27 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml @@ -0,0 +1,261 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/qcom/qcom,rpmh-rsc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm RPMH RSC + +maintainers: + - Bjorn Andersson + +description: | + Resource Power Manager Hardened (RPMH) is the mechanism for communicating + with the hardened resource accelerators on Qualcomm SoCs. Requests to the + resources can be written to the Trigger Command Set (TCS) registers and + using a (addr, val) pair and triggered. Messages in the TCS are then sent in + sequence over an internal bus. + + The hardware block (Direct Resource Voter or DRV) is a part of the h/w entity + (Resource State Coordinator a.k.a RSC) that can handle multiple sleep and + active/wake resource requests. Multiple such DRVs can exist in a SoC and can + be written to from Linux. The structure of each DRV follows the same template + with a few variations that are captured by the properties here. + + A TCS may be triggered from Linux or triggered by the F/W after all the CPUs + have powered off to facilitate idle power saving. TCS could be classified as:: + ACTIVE - Triggered by Linux + SLEEP - Triggered by F/W + WAKE - Triggered by F/W + CONTROL - Triggered by F/W + See also:: + + The order in which they are described in the DT, should match the hardware + configuration. + + Requests can be made for the state of a resource, when the subsystem is + active or idle. When all subsystems like Modem, GPU, CPU are idle, the + resource state will be an aggregate of the sleep votes from each of those + subsystems. Clients may request a sleep value for their shared resources in + addition to the active mode requests. + + Drivers that want to use the RSC to communicate with RPMH must specify their + bindings as child nodes of the RSC controllers they wish to communicate with. + +properties: + compatible: + const: qcom,rpmh-rsc + + interrupts: + minItems: 1 + maxItems: 4 + description: + The interrupt that trips when a message complete/response is received for + this DRV from the accelerators. + Number of interrupts must match number of DRV blocks. + + label: + description: + Name for the RSC. The name would be used in trace logs. + + qcom,drv-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The ID of the DRV in the RSC block that will be used by this controller. + + qcom,tcs-config: + $ref: /schemas/types.yaml#/definitions/uint32-matrix + minItems: 4 + maxItems: 4 + items: + items: + - description: | + TCS type:: + - ACTIVE_TCS + - SLEEP_TCS + - WAKE_TCS + - CONTROL_TCS + enum: [ 0, 1, 2, 3 ] + - description: Number of TCS + description: | + The tuple defining the configuration of TCS. Must have two cells which + describe each TCS type. The order of the TCS must match the hardware + configuration. + + qcom,tcs-offset: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The offset of the TCS blocks. + + reg: + minItems: 1 + maxItems: 4 + + reg-names: + minItems: 1 + items: + - const: drv-0 + - const: drv-1 + - const: drv-2 + - const: drv-3 + + bcm-voter: + $ref: /schemas/interconnect/qcom,bcm-voter.yaml# + + clock-controller: + $ref: /schemas/clock/qcom,rpmhcc.yaml# + + power-controller: + $ref: /schemas/power/qcom,rpmpd.yaml# + +patternProperties: + '-regulators$': + $ref: /schemas/regulator/qcom,rpmh-regulator.yaml# + +required: + - compatible + - interrupts + - qcom,drv-id + - qcom,tcs-config + - qcom,tcs-offset + - reg + - reg-names + +additionalProperties: false + +examples: + - | + // For a TCS whose RSC base address is 0x179C0000 and is at a DRV id of + // 2, the register offsets for DRV2 start at 0D00, the register + // calculations are like this:: + // DRV0: 0x179C0000 + // DRV2: 0x179C0000 + 0x10000 = 0x179D0000 + // DRV2: 0x179C0000 + 0x10000 * 2 = 0x179E0000 + // TCS-OFFSET: 0xD00 + #include + #include + + rsc@179c0000 { + compatible = "qcom,rpmh-rsc"; + reg = <0x179c0000 0x10000>, + <0x179d0000 0x10000>, + <0x179e0000 0x10000>; + reg-names = "drv-0", "drv-1", "drv-2"; + interrupts = , + , + ; + label = "apps_rsc"; + qcom,tcs-offset = <0xd00>; + qcom,drv-id = <2>; + qcom,tcs-config = , + , + , + ; + }; + + - | + // For a TCS whose RSC base address is 0xAF20000 and is at DRV id of 0, the + // register offsets for DRV0 start at 01C00, the register calculations are + // like this:: + // DRV0: 0xAF20000 + // TCS-OFFSET: 0x1C00 + #include + #include + + rsc@af20000 { + compatible = "qcom,rpmh-rsc"; + reg = <0xaf20000 0x10000>; + reg-names = "drv-0"; + interrupts = ; + label = "disp_rsc"; + qcom,tcs-offset = <0x1c00>; + qcom,drv-id = <0>; + qcom,tcs-config = , + , + , + ; + }; + + - | + #include + #include + #include + + rsc@18200000 { + compatible = "qcom,rpmh-rsc"; + reg = <0x18200000 0x10000>, + <0x18210000 0x10000>, + <0x18220000 0x10000>; + reg-names = "drv-0", "drv-1", "drv-2"; + interrupts = , + , + ; + label = "apps_rsc"; + qcom,tcs-offset = <0xd00>; + qcom,drv-id = <2>; + qcom,tcs-config = , + , + , + ; + + clock-controller { + compatible = "qcom,sm8350-rpmh-clk"; + #clock-cells = <1>; + clock-names = "xo"; + clocks = <&xo_board>; + }; + + power-controller { + compatible = "qcom,sm8350-rpmhpd"; + #power-domain-cells = <1>; + operating-points-v2 = <&rpmhpd_opp_table>; + + rpmhpd_opp_table: opp-table { + compatible = "operating-points-v2"; + + rpmhpd_opp_ret: opp1 { + opp-level = ; + }; + + rpmhpd_opp_min_svs: opp2 { + opp-level = ; + }; + + rpmhpd_opp_low_svs: opp3 { + opp-level = ; + }; + + rpmhpd_opp_svs: opp4 { + opp-level = ; + }; + + rpmhpd_opp_svs_l1: opp5 { + opp-level = ; + }; + + rpmhpd_opp_nom: opp6 { + opp-level = ; + }; + + rpmhpd_opp_nom_l1: opp7 { + opp-level = ; + }; + + rpmhpd_opp_nom_l2: opp8 { + opp-level = ; + }; + + rpmhpd_opp_turbo: opp9 { + opp-level = ; + }; + + rpmhpd_opp_turbo_l1: opp10 { + opp-level = ; + }; + }; + }; + + bcm-voter { + compatible = "qcom,bcm-voter"; + }; + }; -- cgit v1.2.3