Re: [PATCH v6 0/2] Add USB2.0 PHY support for SpacemiT K1

[Aurelien Jarno <aurelien@aurel32.net>]

On 2025-10-17 22:49, Ze Huang wrote:
> This patch series introduces support for the USB2.0 PHY on the SpacemiT
> K1 SoC. The implementation has been tested on the Milk-V Jupiter and
> BananaPi-f3.
> 
> K1 includes three USB ports as follows[1]:
> - A USB2.0 OTG Port
> - A USB2.0 Host Only Port
> - A USB3.0 Port with a USB2.0 DRD interface
> 
> Each of these ports is connected to a USB2.0 PHY responsible for USB2
> transmission.
> 
> This series is based on 6.18-rc1.
> 
> Link: https://developer.spacemit.com/documentation?token=AjHDwrW78igAAEkiHracBI9HnTb#part5 [1]
> 
> Signed-off-by: Ze Huang <huangze@whut.edu.cn>
> ---
> Changes in v6:
> - phy: spacemit: k1-usb2-phy:
>   - Fix clock API usage and ensure proper clock disabling in error paths.
>   - Refactor Register Definitions: Replace address/number-based macros with
>     feature-based names
> - Link to v5: https://lore.kernel.org/all/20250527-b4-k1-usb3-phy-v2-v5-3-2d366b0af999@whut.edu.cn
> 
> Changes in v5:
> - phy driver for usb2:
>   - convert readl/writel to regmap
>   - fix typo: sentinal -> sentinel
> - Link to v4: https://lore.kernel.org/r/20250526-b4-k1-usb3-phy-v2-v4-0-eca668fc16a2@whut.edu.cn
> 
> Changes in v4:
> - combphy driver:
>   - add in-code comments to indicate that PCIe mode is not yet supported.
>   - replace custom spacemit_reg_update() with standard regmap API.
>   - drop spacemit_combphy_wait_ready helper function as only used once.
>   - Fix PHY init timeout handling: ensure proper error reporting when PLL
>     lock fails during USB3 PHY initialization
> - Link to v3: https://lore.kernel.org/r/20250517-b4-k1-usb3-phy-v2-v3-0-e0655613a163@whut.edu.cn
> 
> Changes in v3:
> - improve commit message, provide more info about phy hardware
> - drop superfluous local variable in `spacemit_combphy_wait_ready`
> - replace devm_reset_control_get with devm_reset_control_get_exclusive
> - Link to v2: https://lore.kernel.org/r/20250418-b4-k1-usb3-phy-v2-v2-0-b69e02da84eb@whut.edu.cn
> 
> Changes in v2:
> - combphy dt-bindings:
>   - fix reg-names
>   - describe reg
>   - describe #phy-cells argument
> - drop stale ".owner" in driver struct
> - add support for usb lfps_thres in combphy
> - fix Kconfig depends on
> - Link to v1: https://lore.kernel.org/all/20250407-b4-k1-usb3-v3-2-v1-0-bf0bcc41c9ba@whut.edu.cn
> 
> Signed-off-by: Ze Huang <huang.ze@linux.dev>
> 
> ---
> Ze Huang (2):
>       dt-bindings: phy: spacemit: add K1 USB2 PHY
>       phy: spacemit: support K1 USB2.0 PHY controller
> 
>  .../devicetree/bindings/phy/spacemit,usb2-phy.yaml |  40 +++++
>  drivers/phy/Kconfig                                |   1 +
>  drivers/phy/Makefile                               |   1 +
>  drivers/phy/spacemit/Kconfig                       |  13 ++
>  drivers/phy/spacemit/Makefile                      |   2 +
>  drivers/phy/spacemit/phy-k1-usb2.c                 | 200 +++++++++++++++++++++
>  6 files changed, 257 insertions(+)
> ---
> base-commit: cb6649f6217c0331b885cf787f1d175963e2a1d2
> change-id: 20251017-k1-usb2phy-a53ed4ea51b0

The whole series is:

Tested-by: Aurelien Jarno <aurelien@aurel32.net>

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                     http://aurel32.net