Hi,
Just a couple of nits below:
On 2/8/21 7:12 AM, Calvin Johnson wrote:
> Introduce ACPI mechanism to get PHYs registered on a MDIO bus and
> provide them to be connected to MAC.
>
> Describe properties "phy-handle" and "phy-mode".
>
> Signed-off-by: Calvin Johnson <calvin.johnson@xxxxxxxxxxx>
> ---
> Documentation/firmware-guide/acpi/dsd/phy.rst | 133 ++++++++++++++++++
> 1 file changed, 133 insertions(+)
> create mode 100644 Documentation/firmware-guide/acpi/dsd/phy.rst
>
> diff --git a/Documentation/firmware-guide/acpi/dsd/phy.rst b/Documentation/firmware-guide/acpi/dsd/phy.rst
> new file mode 100644
> index 000000000000..e1e99cae5eb2
> --- /dev/null
> +++ b/Documentation/firmware-guide/acpi/dsd/phy.rst
> @@ -0,0 +1,133 @@
> +.. SPDX-License-Identifier: GPL-2.0
> +
> +=========================
> +MDIO bus and PHYs in ACPI
> +=========================
> +
> +The PHYs on an MDIO bus [1] are probed and registered using
> +fwnode_mdiobus_register_phy().
> +
> +Later, for connecting these PHYs to MAC, the PHYs registered on the
to a MAC,
> +MDIO bus have to be referenced.
> +
> +This document introduces two _DSD properties that are to be used
> +for connecting PHYs on the MDIO bus [3] to the MAC layer.
> +
> +These properties are defined in accordance with the "Device
> +Properties UUID For _DSD" [2] document and the
> +daffd814-6eba-4d8c-8a91-bc9bbf4aa301 UUID must be used in the Device
> +Data Descriptors containing them.
> +
> +phy-handle
> +----------
...
> +
> +Later, during the MAC driver initialization, the registered PHY devices
> +have to be retrieved from the MDIO bus. For this, the MAC driver need
needs
> +references to the previously registered PHYs which are provided
> +as device object references (e.g. \_SB.MDI0.PHY1).
thanks.
--
~Randy
