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author | Dave Airlie <airlied@redhat.com> | 2019-02-20 05:16:30 +0300 |
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committer | Dave Airlie <airlied@redhat.com> | 2019-02-20 05:16:37 +0300 |
commit | a5f2fafece141ef3509e686cea576366d55cabb6 (patch) | |
tree | 453bc6c5d7caf8d647a2cd6ce6d4658ed0a21987 /Documentation | |
parent | 71f4e45a4ed3807aaed0d1ab3ef472a121753546 (diff) | |
parent | 860433ed2a55dcd18f36c61b3c4fdb12dc76c869 (diff) | |
download | linux-a5f2fafece141ef3509e686cea576366d55cabb6.tar.xz |
Merge https://gitlab.freedesktop.org/drm/msm into drm-next
On the display side, cleanups and fixes to enabled modifiers
(QCOM_COMPRESSED). And otherwise mostly misc fixes all around.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGuZ5uBKpf=fHvKpTiD10nychuEY8rnE+HeRz0QMvtY5_A@mail.gmail.com
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/display/msm/gmu.txt | 59 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/display/msm/gpu.txt | 42 |
2 files changed, 98 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/display/msm/gmu.txt b/Documentation/devicetree/bindings/display/msm/gmu.txt new file mode 100644 index 000000000000..3439b38e60f2 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/gmu.txt @@ -0,0 +1,59 @@ +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> +- iommus: phandle to the adreno iommu +- operating-points-v2: phandle to the OPP operating points + +Example: + +/ { + ... + + gmu: gmu@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>; + iommus = <&adreno_smmu 5>; + + operating-points-v2 = <&gmu_opp_table>; + }; +}; diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt index f8759145ce1a..aad1aef682f7 100644 --- a/Documentation/devicetree/bindings/display/msm/gpu.txt +++ b/Documentation/devicetree/bindings/display/msm/gpu.txt @@ -10,14 +10,23 @@ Required properties: If "amd,imageon" is used, there should be no top level msm device. - reg: Physical base address and length of the controller's registers. - interrupts: The interrupt signal from the gpu. -- clocks: device clocks +- clocks: device clocks (if applicable) See ../clocks/clock-bindings.txt for details. -- clock-names: the following clocks are required: +- clock-names: the following clocks are required by a3xx, a4xx and a5xx + cores: * "core" * "iface" * "mem_iface" + For GMU attached devices the GPU clocks are not used and are not required. The + following devices should not list clocks: + - qcom,adreno-630.2 +- iommus: optional phandle to an adreno iommu instance +- operating-points-v2: optional phandle to the OPP operating points +- qcom,gmu: For GMU attached devices a phandle to the GMU device that will + control the power for the GPU. Applicable targets: + - qcom,adreno-630.2 -Example: +Example 3xx/4xx/a5xx: / { ... @@ -37,3 +46,30 @@ Example: <&mmcc MMSS_IMEM_AHB_CLK>; }; }; + +Example a6xx (with GMU): + +/ { + ... + + gpu@5000000 { + compatible = "qcom,adreno-630.2", "qcom,adreno"; + #stream-id-cells = <16>; + + reg = <0x5000000 0x40000>, <0x509e000 0x10>; + reg-names = "kgsl_3d0_reg_memory", "cx_mem"; + + /* + * Look ma, no clocks! The GPU clocks and power are + * controlled entirely by the GMU + */ + + interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH>; + + iommus = <&adreno_smmu 0>; + + operating-points-v2 = <&gpu_opp_table>; + + qcom,gmu = <&gmu>; + }; +}; |