Support the graphics clock controller for SM8750 for Graphics SW
driver to use the clocks. GXCLKCTL (Graphics GX Clock Controller) is a
block dedicated to managing clocks for the GPU subsystem on GX power
domain. The GX clock controller driver manages only the GX GDSC and the
rest of the resources of the controller are managed by the firmware.
The Graphics GX clock controller is a reuse of the Kaanapali SW driver.
Changes in v5:
- Update 'fw_name' to index for GPUCC driver [Dmitry].
- Add RB-by [Abel] for code and DT changes.
- Link to v4: https://lore.kernel.org/r/20260303-gpucc_sm8750_v2-v4-0-2f28562db7c9@oss.qualcomm.com
Changes in v4:
- Add RB-by [Krzysztof] for GPUCC bindings.
- There was a documentation errata update for GPUCC and updated the
bindings to capture the MX and CX power-domains and required-opps.
- Update the compatible[qcom,sm8750-gxclkctl] in code which was missed in earlier patch.
- Add the 'use_rpm' for GPUCC.
- Update the power-domain/required-opp handles in GPUCC device node.
- Link to v3: https://lore.kernel.org/r/20260220-gpucc_sm8750_v2-v3-0-6c5408564c3c@oss.qualcomm.com
Changes in v3:
- SM8750 GX controller is reuse of Kaanapali SW driver, update the
bindings.
- Remove 'qcom,sm8750-gxcc.yaml' as it reuses the driver.
- Cleanup the 'gpucc-sm8750.c' to remove the GX clock controller
reference.
- Add the corresponding changes in Makefile for gxclkctl-kaanapali.o
- Update the device node for GX clock controller.
- Link to v2: https://lore.kernel.org/all/20250723-topic-8750_gpucc-v2-0-56c93b84c390@oss.qualcomm.com/
Changes in v2:
- gxcc bindings: remove double colon & list the names for power-domains
- Link to v1: https://lore.kernel.org/r/20250708-topic-8750_gpucc-v1-0-86c86a504d47@oss.qualcomm.com
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
---
Konrad Dybcio (3):
dt-bindings: clock: qcom: Add SM8750 GPU clocks
clk: qcom: Add a driver for SM8750 GPU clocks
arm64: dts: qcom: sm8750: Add GPU clock & IOMMU nodes
.../bindings/clock/qcom,kaanapali-gxclkctl.yaml | 1 +
.../bindings/clock/qcom,sm8450-gpucc.yaml | 23 +
arch/arm64/boot/dts/qcom/sm8750.dtsi | 68 +++
drivers/clk/qcom/Kconfig | 9 +
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/gpucc-sm8750.c | 473 +++++++++++++++++++++
drivers/clk/qcom/gxclkctl-kaanapali.c | 1 +
include/dt-bindings/clock/qcom,sm8750-gpucc.h | 50 +++
8 files changed, 626 insertions(+)
---
base-commit: 350adaf7fde9fdbd9aeed6d442a9ae90c6a3ab97
change-id: 20260217-gpucc_sm8750_v2-866576675fa0
Best regards,
--
Taniya Das <taniya.das@oss.qualcomm.com>