netdev - Re: [RFC] net: qcom/emac: mdiobus-dev fwnode should point to emac-adev

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Date:   Thu, 25 Jan 2018 10:05:02 -0600
From:   Timur Tabi <timur@...eaurora.org>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Wang Dongsheng <dongsheng.wang@...-semitech.com>,
        hpuranik@...eaurora.org, yu.zheng@...-semitech.com,
        netdev@...r.kernel.org, Marcin Wojtas <mw@...ihalf.com>
Subject: Re: [RFC] net: qcom/emac: mdiobus-dev fwnode should point to
 emac-adev

On 01/25/2018 09:59 AM, Andrew Lunn wrote:
> I expect we will implement something like acpi_mdiobus_register(), and
> it will take a pointer to an ACPI node. And maybe on top of
> of_mdiobus_register() and of_mdiobus_register() we will add a
> device_mdiobus_register().

Makes sense.  If you remember, please CC me on any patches.

> What i'm trying to avoid is drivers ending up with different ACPI
> bindings. If you don't want to add an ACPI node/property then no
> problems, just don't expect to be able to use any of the optional
> features of the MDIO core, like the GPIOs for reset.

Well, if a new binding is created, we will update our ACPI tables and 
drivers use it.  But we may need to keep the legacy code in emac-phy.c 
for backwards compatibility with older firmware.

-- 
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc.  Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.