On 2020-02-01 03:13, Doug Anderson wrote:
Hi,
On Fri, Jan 31, 2020 at 4:04 AM Sharat Masetty
<smasetty@xxxxxxxxxxxxxx> wrote:
+ adreno_smmu: iommu@5040000 {
+ compatible = "qcom,sc7180-smmu-v2",
"qcom,smmu-v2";
+ reg = <0 0x05040000 0 0x10000>;
+ #iommu-cells = <1>;
+ #global-interrupts = <2>;
+ interrupts = <GIC_SPI 229
IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 231
IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 364
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 365
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 366
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 367
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 368
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 369
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 370
IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 371
IRQ_TYPE_EDGE_RISING>;
+ clocks = <&gcc GCC_GPU_MEMNOC_GFX_CLK>,
+ <&gcc GCC_GPU_CFG_AHB_CLK>,
+ <&gcc GCC_DDRSS_GPU_AXI_CLK>;
+
+ clock-names = "bus", "iface", "mem_iface_clk";
Repeated comment from v2 feedback:
Please send a patch to:
Documentation/devicetree/bindings/iommu/arm,smmu.yaml
...adding 'qcom,sc7180-smmu-v2'. If you do this it will point out
that you've added a new clock: "mem_iface_clk". Is this truly a new
clock in sc7180 compared to previous IOMMUs? ...or is it not really
needed?
I can confirm that this clock is needed for SC7180. I will send out a
new patch
to update the documentation this week.
+ gmu: gmu@506a000 {
+ compatible="qcom,adreno-gmu-618.0",
"qcom,adreno-gmu";
+ reg = <0 0x0506a000 0 0x31000>, <0 0x0b290000
0 0x10000>,
+ <0 0x0b490000 0 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 CX_GDSC>;
+ power-domain-names = "cx";
As per continued comments on v2, please see if this works for you:
power-domains = <&gpucc CX_GDSC>, <0>;
power-domain-names = "cx", "gx";
...and work to get something more real for "gx" ASAP. It did seem to
boot for me and (unless someone disagrees) it seems better than
totally leaving it out / violating the bindings?
-Doug
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