On Wed, May 20, 2026 at 05:09:05PM +0200, Christian Marangi wrote:
> This is a major rework of the old v2 series.
>
> The SoC always support USB 2.0 but for USB 3.0 it needs additional
> configuration for the Serdes port. Such port can be either configured
> for USB usage or for PCIe lines or HSGMII and these are configured
> in the SCU space.
>
> The previous implementation of a dedicated SSR driver was too
> complex and fragile for the simple task of configuring a register
> hence it was dropped and the handling is entirely in the PHY driver.
>
> Everything was reducted to the dt-bindings to describe the Serdes line.
>
> Also the property for the PHY are renamed to a more suitable name and
> everything is now mandatory to simplify the implementation.
> (the PHY are always present and active on the SoC)
>
> Also other unrelated patch are dropped from this series.
>
> Changes v8:
> - Squash header to clk Documentation patch
> - Address comments from AI Bot
>
> Changes v7:
> - Rework to double PHY implementation
> (suggested by Rob)
> Now the clk driver expose a PHY for Serdes port
> USB PHY driver selects it
> - Rebase on top of linux-next
> Link: https://lore.kernel.org/all/20260306190156.22297-1-ansuelsmth@gmail.com/
Typo for the link. It's:
Link: https://lore.kernel.org/all/20260519220813.28468-1-ansuelsmth@gmail.com/
>
> Changes v6:
> - Fix kernel test robot (sparse warning)
> Link: https://lore.kernel.org/all/20260306190156.22297-1-ansuelsmth@gmail.com/
>
> Changes v5:
> - Add Ack and Review tag from Connor
> - Implement Ethernet support in the USB driver
> (testing support for this Serdes on a special reference board)
> - Use an7581 prefix for USB PHY driver
> Link: https://lore.kernel.org/all/20251107160251.2307088-1-ansuelsmth@gmail.com/
>
> Changes v4:
> - Rename PCIe and USB PHY to AN7581
> - Drop airoha,scu (handled directly in driver)
> - Drop dt-bindings for monitor clock in favor of raw values
> - Better describe the usage of airoha,usb3-serdes
> - Simplify values of dt-bindings SSR SERDES
> Link: https://lore.kernel.org/all/20251107160251.2307088-1-ansuelsmth@gmail.com/
>
> Changes v3:
> - Drop clk changes
> - Drop SSR driver
> - Rename property in Documentation
> - Simplify PHY handling
> - Move SSR handling inside the PHY driver
> Link: https://lore.kernel.org/all/20251029173713.7670-1-ansuelsmth@gmail.com/
>
> Changes v2:
> - Drop changes for simple-mfd
> - Rework PHY node structure to single node
> - Drop port-id property in favor of serdes-port and
> usb2-monitor-clock-sel
> - Make the SSR driver probe from the clock driver
>
> Christian Marangi (5):
> dt-bindings: clock: airoha: Add PHY binding for Serdes port
> dt-bindings: phy: Add documentation for Airoha AN7581 USB PHY
> clk: en7523: Add support for selecting the Serdes port in SCU
> phy: move and rename Airoha PCIe PHY driver to dedicated directory
> phy: airoha: Add support for Airoha AN7581 USB PHY
>
> .../bindings/clock/airoha,en7523-scu.yaml | 9 +
> .../bindings/phy/airoha,an7581-usb-phy.yaml | 62 ++
> MAINTAINERS | 11 +-
> drivers/clk/Kconfig | 1 +
> drivers/clk/clk-en7523.c | 216 ++++++-
> drivers/phy/Kconfig | 11 +-
> drivers/phy/Makefile | 4 +-
> drivers/phy/airoha/Kconfig | 24 +
> drivers/phy/airoha/Makefile | 4 +
> .../phy-an7581-pcie-regs.h} | 2 +-
> .../phy-an7581-pcie.c} | 6 +-
> drivers/phy/airoha/phy-an7581-usb.c | 554 ++++++++++++++++++
> include/dt-bindings/soc/airoha,scu-ssr.h | 11 +
> 13 files changed, 894 insertions(+), 21 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/phy/airoha,an7581-usb-phy.yaml
> create mode 100644 drivers/phy/airoha/Kconfig
> create mode 100644 drivers/phy/airoha/Makefile
> rename drivers/phy/{phy-airoha-pcie-regs.h => airoha/phy-an7581-pcie-regs.h} (99%)
> rename drivers/phy/{phy-airoha-pcie.c => airoha/phy-an7581-pcie.c} (99%)
> create mode 100644 drivers/phy/airoha/phy-an7581-usb.c
> create mode 100644 include/dt-bindings/soc/airoha,scu-ssr.h
>
> --
> 2.53.0
>
--
Ansuel