Re: [PATCH 0/2] interconnect: qcom: add MSM8x60 (MSM8660/APQ8060) NoC driver

[Jie Gan]

On 6/4/2026 12:34 AM, Herman van Hazendonk wrote:
> Add interconnect support for the MSM8x60 family (MSM8260, MSM8660,
> APQ8060) — Qualcomm's Scorpion dual-core SoC generation used in devices
> like the HP TouchPad, HTC EVO 3D and HTC Sensation.

Missed dt-binding doc for the new added driver.

Thanks,
Jie

> The chip's Network-on-Chip fabric is divided into four sub-fabrics:
>
>    AFAB  - Applications fabric: Scorpion CPU + L2 cache, paths to EBI
>    SFAB  - System fabric: DMA engines, SPS, USB HS, LPASS, MSS
>    MMFAB - Multimedia fabric: MDP, GPU, camera (VFE/JPEG), video codec
>    DFAB  - Daytona fabric: eMMC/SD (SDC), ADM DMA, USB voter
>
> Bandwidth requests are committed to the RPM firmware via its shared-memory
> arbitration tables using the qcom-rpm driver backend; each fabric also has
> a bus clock whose rate is derived from the aggregated bandwidth.
>
> The driver includes a 384 MHz bus clock floor, replacing the previous
> 266 MHz minimum that caused USB starvation on real hardware, and careful
> devm/device_link lifecycle to handle EPROBE_DEFER from both RPM and
> clock lookups without leaking clock prepare/enable references.
>
> Signed-off-by: Herman van Hazendonk <github.com@xxxxxxxxxx>
>
> Herman van Hazendonk (2):
>    dt-bindings: interconnect: qcom: add msm8660 fabric IDs
>    interconnect: qcom: add MSM8x60 NoC driver
>
>   drivers/interconnect/qcom/Kconfig             |   14 +
>   drivers/interconnect/qcom/Makefile            |    2 +
>   drivers/interconnect/qcom/msm8660.c           | 1147 +++++++++++++++++
>   .../dt-bindings/interconnect/qcom,msm8660.h   |  156 +++
>   4 files changed, 1319 insertions(+)
>   create mode 100644 drivers/interconnect/qcom/msm8660.c
>   create mode 100644 include/dt-bindings/interconnect/qcom,msm8660.h
>
>
> base-commit: 944125b4c454b58d2fe6e35f1087a932b2050dff