[PATCH v3 3/3] arm64: dts: qcom: sm8750: Add GPU clock & IOMMU nodes

From: Taniya Das

Date: Fri Feb 20 2026 - 00:56:01 EST


From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Add the GPU_CC and GX_CC (brand new! as far as we're concerned, this
is simply a separate block housing the GX GDSC) nodes, required to
power up the graphics-related hardware.

Make use of it by enabling the associated IOMMU as well. The GPU itself
needs some more work and will be enabled later.

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Co-developed-by: Taniya Das <taniya.das@xxxxxxxxxxxxxxxx>
Signed-off-by: Taniya Das <taniya.das@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8750.dtsi | 64 ++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index f56b1f889b857a28859910f5c4465c8ce3473b00..0cc931d0bc96e9563ce4e7989ecd4ba50bd424f8 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -4,7 +4,9 @@
*/

#include <dt-bindings/clock/qcom,rpmh.h>
+#include <dt-bindings/clock/qcom,kaanapali-gxclkctl.h>
#include <dt-bindings/clock/qcom,sm8750-gcc.h>
+#include <dt-bindings/clock/qcom,sm8750-gpucc.h>
#include <dt-bindings/clock/qcom,sm8750-tcsr.h>
#include <dt-bindings/clock/qcom,sm8750-videocc.h>
#include <dt-bindings/dma/qcom-gpi.h>
@@ -3001,6 +3003,30 @@ videocc: clock-controller@aaf0000 {
#power-domain-cells = <1>;
};

+ gxclkctl: clock-controller@3d64000 {
+ compatible = "qcom,sm8750-gxclkctl";
+ reg = <0x0 0x03d64000 0x0 0x6000>;
+
+ power-domains = <&rpmhpd RPMHPD_GFX>,
+ <&rpmhpd RPMHPD_GMXC>,
+ <&gpucc GPU_CC_CX_GDSC>;
+
+ #power-domain-cells = <1>;
+ };
+
+ gpucc: clock-controller@3d90000 {
+ compatible = "qcom,sm8750-gpucc";
+ reg = <0x0 0x03d90000 0x0 0x9800>;
+
+ clocks = <&bi_tcxo_div2>,
+ <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+ <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
pdc: interrupt-controller@b220000 {
compatible = "qcom,sm8750-pdc", "qcom,pdc";
reg = <0x0 0x0b220000 0x0 0x10000>, <0x0 0x164400f0 0x0 0x64>;
@@ -4515,6 +4541,44 @@ tpdm_swao_out: endpoint {
};
};

+ adreno_smmu: iommu@3da0000 {
+ compatible = "qcom,sm8750-smmu-500", "qcom,adreno-smmu",
+ "qcom,smmu-500", "arm,mmu-500";
+ reg = <0x0 0x03da0000 0x0 0x40000>;
+ #iommu-cells = <2>;
+ #global-interrupts = <1>;
+ interrupts = <GIC_SPI 674 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 678 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 679 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 680 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 681 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 682 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 683 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 684 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 685 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 686 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 687 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 688 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 476 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 574 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 575 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 576 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 577 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 660 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 662 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 665 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 666 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 667 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 669 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 670 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 700 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gpucc GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK>;
+ clock-names = "hlos";
+ power-domains = <&gpucc GPU_CC_CX_GDSC>;
+ dma-coherent;
+ };
+
apps_smmu: iommu@15000000 {
compatible = "qcom,sm8750-smmu-500", "qcom,smmu-500", "arm,mmu-500";
reg = <0x0 0x15000000 0x0 0x100000>;

--
2.34.1