[Freedreno] [PATCH v2 1/4] dt-bindings: display: msm: Convert GMU bindings to YAML
Jordan Crouse
jcrouse at codeaurora.org
Thu Feb 20 18:26:53 UTC 2020
Convert display/msm/gmu.txt to display/msm/gmu.yaml and remove the old
text bindings.
Signed-off-by: Jordan Crouse <jcrouse at codeaurora.org>
---
.../devicetree/bindings/display/msm/gmu.txt | 116 ------------------
.../devicetree/bindings/display/msm/gmu.yaml | 130 +++++++++++++++++++++
2 files changed, 130 insertions(+), 116 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/msm/gmu.txt
create mode 100644 Documentation/devicetree/bindings/display/msm/gmu.yaml
diff --git a/Documentation/devicetree/bindings/display/msm/gmu.txt b/Documentation/devicetree/bindings/display/msm/gmu.txt
deleted file mode 100644
index bf9c7a2..0000000
--- a/Documentation/devicetree/bindings/display/msm/gmu.txt
+++ /dev/null
@@ -1,116 +0,0 @@
-Qualcomm adreno/snapdragon GMU (Graphics management unit)
-
-The GMU is a programmable power controller for the GPU. the CPU controls the
-GMU which in turn handles power controls for the GPU.
-
-Required properties:
-- compatible: "qcom,adreno-gmu-XYZ.W", "qcom,adreno-gmu"
- for example: "qcom,adreno-gmu-630.2", "qcom,adreno-gmu"
- Note that you need to list the less specific "qcom,adreno-gmu"
- for generic matches and the more specific identifier to identify
- the specific device.
-- reg: Physical base address and length of the GMU registers.
-- reg-names: Matching names for the register regions
- * "gmu"
- * "gmu_pdc"
- * "gmu_pdc_seg"
-- interrupts: The interrupt signals from the GMU.
-- interrupt-names: Matching names for the interrupts
- * "hfi"
- * "gmu"
-- clocks: phandles to the device clocks
-- clock-names: Matching names for the clocks
- * "gmu"
- * "cxo"
- * "axi"
- * "mnoc"
-- power-domains: should be:
- <&clock_gpucc GPU_CX_GDSC>
- <&clock_gpucc GPU_GX_GDSC>
-- power-domain-names: Matching names for the power domains
-- iommus: phandle to the adreno iommu
-- operating-points-v2: phandle to the OPP operating points
-
-Optional properties:
-- sram: phandle to the On Chip Memory (OCMEM) that's present on some Snapdragon
- SoCs. See Documentation/devicetree/bindings/sram/qcom,ocmem.yaml.
-
-Example:
-
-/ {
- ...
-
- gmu: gmu at 506a000 {
- compatible="qcom,adreno-gmu-630.2", "qcom,adreno-gmu";
-
- reg = <0x506a000 0x30000>,
- <0xb280000 0x10000>,
- <0xb480000 0x10000>;
- reg-names = "gmu", "gmu_pdc", "gmu_pdc_seq";
-
- interrupts = <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "hfi", "gmu";
-
- clocks = <&gpucc GPU_CC_CX_GMU_CLK>,
- <&gpucc GPU_CC_CXO_CLK>,
- <&gcc GCC_DDRSS_GPU_AXI_CLK>,
- <&gcc GCC_GPU_MEMNOC_GFX_CLK>;
- clock-names = "gmu", "cxo", "axi", "memnoc";
-
- power-domains = <&gpucc GPU_CX_GDSC>,
- <&gpucc GPU_GX_GDSC>;
- power-domain-names = "cx", "gx";
-
- iommus = <&adreno_smmu 5>;
-
- operating-points-v2 = <&gmu_opp_table>;
- };
-};
-
-a3xx example with OCMEM support:
-
-/ {
- ...
-
- gpu: adreno at fdb00000 {
- compatible = "qcom,adreno-330.2",
- "qcom,adreno";
- reg = <0xfdb00000 0x10000>;
- reg-names = "kgsl_3d0_reg_memory";
- interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "kgsl_3d0_irq";
- clock-names = "core",
- "iface",
- "mem_iface";
- clocks = <&mmcc OXILI_GFX3D_CLK>,
- <&mmcc OXILICX_AHB_CLK>,
- <&mmcc OXILICX_AXI_CLK>;
- sram = <&gmu_sram>;
- power-domains = <&mmcc OXILICX_GDSC>;
- operating-points-v2 = <&gpu_opp_table>;
- iommus = <&gpu_iommu 0>;
- };
-
- ocmem at fdd00000 {
- compatible = "qcom,msm8974-ocmem";
-
- reg = <0xfdd00000 0x2000>,
- <0xfec00000 0x180000>;
- reg-names = "ctrl",
- "mem";
-
- clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
- <&mmcc OCMEMCX_OCMEMNOC_CLK>;
- clock-names = "core",
- "iface";
-
- #address-cells = <1>;
- #size-cells = <1>;
-
- gmu_sram: gmu-sram at 0 {
- reg = <0x0 0x100000>;
- ranges = <0 0 0xfec00000 0x100000>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/msm/gmu.yaml b/Documentation/devicetree/bindings/display/msm/gmu.yaml
new file mode 100644
index 0000000..776ff92
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/gmu.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright 2019-2020, The Linux Foundation, All Rights Reserved
+%YAML 1.2
+---
+
+$id: "http://devicetree.org/schemas/display/msm/gmu.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Devicetree bindings for the GMU attached to certain Adreno GPUs
+
+maintainers:
+ - Rob Clark <robdclark at gmail.com>
+
+description: |
+ These bindings describe the Graphics Management Unit (GMU) that is attached
+ to members of the Adreno A6xx GPU family. The GMU provides on-device power
+ management and support to improve power efficiency and reduce the load on
+ the CPU.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,adreno-gmu-630.2
+ - const: qcom,adreno-gmu
+
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: GMU PDC registers
+ - description: GMU PDC sequence registers
+
+ reg-names:
+ items:
+ - const: gmu
+ - const: gmu_pdc
+ - const: gmu_pdc_seq
+
+ clocks:
+ items:
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+
+ clock-names:
+ items:
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+
+ interrupts:
+ items:
+ - description: GMU HFI interrupt
+ - description: GMU interrupt
+
+
+ interrupt-names:
+ items:
+ - const: hfi
+ - const: gmu
+
+ power-domains:
+ items:
+ - description: CX power domain
+ - description: GX power domain
+
+ power-domain-names:
+ items:
+ - const: cx
+ - const: gx
+
+ iommus:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Phandle to a IOMMU device and stream ID. Refer to ../../iommu/iommu.txt
+ for more information.
+
+ operating-points-v2:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the OPP table for the available GMU frequencies. Refer to
+ ../../opp/opp.txt for more information.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - power-domains
+ - power-domain-names
+ - iommus
+ - operating-points-v2
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gpucc-sdm845.h>
+ #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ gmu: gmu at 506a000 {
+ compatible="qcom,adreno-gmu-630.2", "qcom,adreno-gmu";
+
+ reg = <0x506a000 0x30000>,
+ <0xb280000 0x10000>,
+ <0xb480000 0x10000>;
+ reg-names = "gmu", "gmu_pdc", "gmu_pdc_seq";
+
+ clocks = <&gpucc GPU_CC_CX_GMU_CLK>,
+ <&gpucc GPU_CC_CXO_CLK>,
+ <&gcc GCC_DDRSS_GPU_AXI_CLK>,
+ <&gcc GCC_GPU_MEMNOC_GFX_CLK>;
+ clock-names = "gmu", "cxo", "axi", "memnoc";
+
+ interrupts = <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "hfi", "gmu";
+
+ power-domains = <&gpucc GPU_CX_GDSC>,
+ <&gpucc GPU_GX_GDSC>;
+ power-domain-names = "cx", "gx";
+
+ iommus = <&adreno_smmu 5>;
+ operating-points-v2 = <&gmu_opp_table>;
+ };
--
2.7.4
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