[PATCH v4 0/8] Flatten USB Controller Nodes on IPQ SoCs

[George Moussalem via B4 Relay <devnull+george.moussalem.outlook.com@kernel.org>]

Flatten usb controller node and update to using latest bindings and
flattened driver approach.

In addition, set the right UTMI clock rate and override any clock
rate inherited from the bootloader.

I've split these patches from a larger patch set to add USB3 support on
IPQ5018 and IPQ5332 SoCs where these patches are required to ensure new
functionality is added to the new flattened driver and binding model.

link: https://lore.kernel.org/all/20260812-ipq5018-usb3-v2-0-8f355d7ff0ef@outlook.com/

Signed-off-by: George Moussalem <george.moussalem@outlook.com>
---
Changes in v4:
- Dropped patches to have the glue layer pass the reference clock rate
  to the core as they're no longer required since Kathiravan's patches
  updating the UTMI clock rates have been applied in next:
  commit 0fe2995196a5 ("clk: qcom: ipq5018: add 24MHz rate for USB UTMI clock")
  commit 33e6a4864ddc ("clk: qcom: ipq5332: add 24MHz rate for USB UTMI clock")
- Updated the dts patches for IPQ5018 and IPQ5332 accordingly to set the
  UTMI clock rate to 24 MHz.
- Link to v3: https://lore.kernel.org/r/20260906-ipq-flatten-usb-v3-0-13e4e0f63123@outlook.com

Changes in v3:
- Re-added dr_mode back to the controller node in ipq6018-cp01-c1.dts
  after having removed it in patch 6.
- Swap interrupts for dp_hs_phy_irq and dm_hs_phy_irq for ipq9574 as per
  order in updated binding.
- Only set the ref_clk_rate in the probe_data structure if the UTMI clock
  is available.
- Also referring to changes below in v2 (v2 wasn't reviewed yet).
- Link to v2: https://lore.kernel.org/r/20260906-ipq-flatten-usb-v2-0-dab83120b10a@outlook.com

Changes in v2:
- Dropped the "qcom,select-utmi-as-ref-clk" property from the binding
  and DTS nodes since it is no longer needed. If the UTMI clock is
  available, the glue layer will pass its clock rate to the core
  unconditionally.
- Added separate patches to move the DR mode to the relevant board DTS
  files as per Konrad's request.
- Picked up RB tags
- Link to v1: https://lore.kernel.org/r/20260825-ipq-flatten-usb-v1-0-5c1f3170bbe9@outlook.com

---
George Moussalem (8):
      arm64: dts: qcom: ipq5018: Flatten usb controller node
      arm64: dts: qcom: ipq5332: Flatten usb controller node
      arm64: dts: qcom: ipq5424: Flatten usb controller nodes
      arm64: dts: qcom: ipq6018: move DR mode to board DTS
      arm64: dts: qcom: ipq6018: Flatten usb controller nodes
      arm64: dts: qcom: ipq8074: move DR mode to board DTS
      arm64: dts: qcom: ipq8074: Flatten usb controller nodes
      arm64: dts: qcom: ipq9574: Flatten usb controller node

 arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts   |   6 +-
 arch/arm64/boot/dts/qcom/ipq5018.dtsi            |  51 +++++------
 arch/arm64/boot/dts/qcom/ipq5332-rdp468.dts      |   6 +-
 arch/arm64/boot/dts/qcom/ipq5332.dtsi            |  57 ++++++------
 arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts      |  12 +--
 arch/arm64/boot/dts/qcom/ipq5424.dtsi            |  86 ++++++++----------
 arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts     |   2 +
 arch/arm64/boot/dts/qcom/ipq6018.dtsi            |  95 +++++++++-----------
 arch/arm64/boot/dts/qcom/ipq8074-hk01.dts        |   4 +
 arch/arm64/boot/dts/qcom/ipq8074.dtsi            | 110 +++++++++++------------
 arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi |   6 +-
 arch/arm64/boot/dts/qcom/ipq9574.dtsi            |  48 +++++-----
 12 files changed, 215 insertions(+), 268 deletions(-)
---
base-commit: 6c2cb8b8b843d216ab549b678a0d8831c43153e0
change-id: 20260825-ipq-flatten-usb-c7d7f15f3966

Best regards,
-- 
George Moussalem <george.moussalem@outlook.com>