[PATCH v3 00/15] Add initial support for Qualcomm Kuno SoC

This series adds initial support for the Qualcomm Kuno SoC and the Kuno
IDP reference board.

Kuno is a 32-bit ARM (Cortex-A7) Qualcomm platform. This series brings up
the essential SoC infrastructure required to boot to a serial console:

  - Global Clock Controller (GCC) and RPMh clock controller
  - RPMh power domains
  - Interconnect (NoC) provider
  - TLMM pin controller
  - PDC interrupt controller and SCM firmware interface
  - Devicetree for the SoC and the Kuno IDP board

The soc: qcom: geni-se patch allows the GENI serial engine driver to be
selected on 32-bit ARM Qualcomm SoCs, which the debug UART console
depends on.

Signed-off-by: Hardeep Sharma <[email protected]>
---
Changes in v3:
- Addressed v2 review feedback:
  - Reworked the interconnect binding clocks: dropped clock-names and
    replaced the flexible min/maxItems list with fixed per-compatible
    clocks (aggre-noc: 2, system-noc: 1), required where present and
    disallowed otherwise, matching the sdx75/glymur shape.
  - Made #power-domain-cells required on the Kuno GCC binding and
    declared it on the SoC gcc node, since the Kuno GCC hosts GDSCs and
    is a power-domain provider (following qcom,sdx75-gcc); the driver's
    GDSC support will follow separately.
  - Made the GPIO65/66 QDSS CTI trig1 funcsel-3 route selectable: added
    a distinct qdss_cti_trig1_mire pin function (and allowed it in the
    TLMM binding enum), as the duplicate funcsel-2/3 entry left
    funcsel-3 unreachable.
  - Collected Acked-by / Reviewed-by tags from v2.
- Link to v2: https://lore.kernel.org/all/[email protected]/

Changes in v2:
- Addressed v1 review feedback:
  - Reworked soc: qcom: geni-se commit message; dropped the Fixes: tag.
  - Reworded dt-bindings commit messages to the "Document X for the
    Qualcomm Kuno SoC" one-liner form.
  - Canonicalized copyright headers on interconnect binding / driver /
    NoC ID header to the single-line Qualcomm Technologies form.
  - Dropped unused <linux/mod_devicetable.h> from the interconnect
    driver.
  - Fixed MODULE_DESCRIPTION casing "KUNO" -> "Kuno" in the interconnect
    driver.
  - Extended interconnect binding to optionally allow up to four QoS AHB
    clocks (matches sdx75/glymur shape).
  - Cleaned up brace/space style in gcc-kuno.c to match peer clock
    drivers.
  - Reworked initial DTS: moved idle-states / domain-idle-states inside
    cpus{}, wrapped fixed clocks in a clocks{} container with peer node
    names (xo-board, sleep-clk), dropped the pcie_pipe_clk fixed-clock
    stub (the GCC 4th clock now uses <0> in DTS to match the sdx75
    idiom; the YAML example uses a named placeholder), dropped the
    RPMHPD_CX power-domain reference on GCC (Kuno GCC has no GDSCs /
    no corner votes / no pm_runtime, so the reference was inert), and
    added a bootloader hand-off comment on the memory node.
  - Collected Acked-by / Reviewed-by tags from v1.
- Link to v1: https://lore.kernel.org/all/[email protected]/

---
Hardeep Sharma (15):
      soc: qcom: geni-se: allow selection on 32-bit ARM Qualcomm SoCs
      dt-bindings: power: rpmpd: Document Kuno RPMh power domains
      pmdomain: qcom: rpmhpd: Add power domains for Kuno
      dt-bindings: clock: qcom,rpmhcc: Add Kuno RPMh clock controller
      clk: qcom: clk-rpmh: Add support for Kuno RPMh clocks
      dt-bindings: interconnect: Add Qualcomm Kuno NoC
      interconnect: qcom: Add Kuno interconnect provider driver
      dt-bindings: pinctrl: qcom: Add Kuno TLMM
      pinctrl: qcom: Add Kuno pinctrl driver
      dt-bindings: clock: qcom: Add Kuno Global Clock Controller
      clk: qcom: Add Global Clock Controller driver for Kuno
      dt-bindings: interrupt-controller: qcom,pdc: Add Kuno compatible string
      dt-bindings: firmware: qcom,scm: Document SCM on Kuno SoC
      dt-bindings: arm: qcom: Document Kuno IDP board
      ARM: dts: qcom: Add initial device tree for Kuno SoC

 .../devicetree/bindings/arm/qcom-soc.yaml          |    4 +-
 Documentation/devicetree/bindings/arm/qcom.yaml    |    5 +
 .../devicetree/bindings/clock/qcom,kuno-gcc.yaml   |   52 +
 .../devicetree/bindings/clock/qcom,rpmhcc.yaml     |    1 +
 .../devicetree/bindings/firmware/qcom,scm.yaml     |    1 +
 .../bindings/interconnect/qcom,kuno-rpmh.yaml      |  117 ++
 .../bindings/interrupt-controller/qcom,pdc.yaml    |    1 +
 .../bindings/pinctrl/qcom,kuno-tlmm.yaml           |  110 ++
 .../devicetree/bindings/power/qcom,rpmpd.yaml      |    1 +
 arch/arm/boot/dts/qcom/Makefile                    |    1 +
 arch/arm/boot/dts/qcom/qcom-kuno-idp.dts           |   25 +
 arch/arm/boot/dts/qcom/qcom-kuno.dtsi              |  422 ++++++
 drivers/clk/qcom/Kconfig                           |   10 +
 drivers/clk/qcom/Makefile                          |    1 +
 drivers/clk/qcom/clk-rpmh.c                        |   15 +
 drivers/clk/qcom/gcc-kuno.c                        | 1438 ++++++++++++++++++++
 drivers/interconnect/qcom/Kconfig                  |   13 +
 drivers/interconnect/qcom/Makefile                 |    2 +
 drivers/interconnect/qcom/kuno.c                   |  977 +++++++++++++
 drivers/pinctrl/qcom/Kconfig.msm                   |   11 +
 drivers/pinctrl/qcom/Makefile                      |    1 +
 drivers/pinctrl/qcom/pinctrl-kuno.c                |  801 +++++++++++
 drivers/pmdomain/qcom/rpmhpd.c                     |   16 +
 drivers/soc/qcom/Kconfig                           |    1 -
 include/dt-bindings/clock/qcom,kuno-gcc.h          |   95 ++
 include/dt-bindings/interconnect/qcom,kuno.h       |   89 ++
 26 files changed, 4207 insertions(+), 3 deletions(-)
---
base-commit: 28d012efb4327f9c75d5e042a7c91e9a542efa98
change-id: 20260809-kuno-soc-support-1dab826de0bf

Best regards,
--  
Hardeep Sharma <[email protected]>