[PATCH phy v3 0/5] Armada 3720 comphy native implementation

[Marek Behún]

Dear Vinod,

did you find time to look at this series?

Marek

On Mon,  3 Jan 2022 15:32:15 +0100
Marek Behún <kabel at kernel.org> wrote:

> Hello Vinod,
> 
> this is v3 of series converting A3720 comphy to native kernel
> implementation.
> 
> Tested on Turris MOX and ESPRESSObin (tested all supported PHY modes:
> ethernet, PCIe, USB3, SATA).
> 
> Changes since v2:
> - removed device-tree changing patch, Gregory applied it on mvebu/dt64
> - changed raw spin lock to ordinary spin lock
> - fixed indentation of gbe_phy_init_fix
> - use FIELD_PREP() macro
> 
> Changes since v1 (all changes in patch 2/6):
> - refactored to use GENMASK()
> - fixed various register names to conform to Functional Specification
> - refactored various register names to have uniform naming
> - refactored register access into one function, which decides whether
>   the access should be direct or indirect, so as to not have all these
>   checks done everywhere in the code
> - moved around one register definition to have the registers sorted
>   according to their offset
> - added comments to some register definitions
> - added support for PHY reset() method
> - when changing PHY mode, the driver now resets the PHY and its
>   registers to put the PHY in known state
> - fixed the power_off() method
> - added spinlock guard when accessing PHY Selector register, since it
>   is shared between the PHYs and so the PHY mutex is insufficient
> - upon driver probe changed the calls to power_off() to reset()
> 
> 
> The original cover letter said:
> 
> The RPC calling to ARM Trusted Firmware implementation of Armada 3720
> comphy driver caused quite a number of issues (explained more in patch 2).
> 
> This series fixes those issues by reimplementing the driver to native
> kernel implementation.
> 
> The last 3 commits revert commits in AHCI, USB, and PCI drivers, that were
> introduced there because of those issues.
> 
> Pali Rohár (5):
>   phy: marvell: phy-mvebu-a3700-comphy: Remove port from driver
>     configuration
>   phy: marvell: phy-mvebu-a3700-comphy: Add native kernel implementation
>   Revert "ata: ahci: mvebu: Make SATA PHY optional for Armada 3720"
>   Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada
>     3720"
>   Revert "PCI: aardvark: Fix initialization with old Marvell's Arm
>     Trusted Firmware"
> 
>  drivers/ata/ahci.h                           |    2 -
>  drivers/ata/ahci_mvebu.c                     |    2 +-
>  drivers/ata/libahci_platform.c               |    2 +-
>  drivers/pci/controller/pci-aardvark.c        |    4 +-
>  drivers/phy/marvell/phy-mvebu-a3700-comphy.c | 1369 ++++++++++++++++--
>  drivers/usb/host/xhci-mvebu.c                |   42 -
>  drivers/usb/host/xhci-mvebu.h                |    6 -
>  drivers/usb/host/xhci-plat.c                 |   20 +-
>  drivers/usb/host/xhci-plat.h                 |    1 -
>  9 files changed, 1245 insertions(+), 203 deletions(-)
>