Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac drivers

From	Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac drivers
Date	2016-03-11 19:50 +0100
Message-ID	<rbAim-1UI-15@gated-at.bofh.it> (permalink)
References	<rbsXv-4QJ-3@gated-at.bofh.it> <rbvC1-70o-5@gated-at.bofh.it> <rbwy6-7BG-3@gated-at.bofh.it>
Organization	Cogent Embedded

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Hello.

On 03/11/2016 05:48 PM, Caesar Wang wrote:

[...]

>>> Hi Rob, David:
>>> PATCH[1/6-2/6]: ====>
>>> net: arc_emac: make the rockchip emac document more compatible
>>> net: arc_emac: add phy-reset-* are optional for device tree
>>>
>>> The patches change the rockchip emac document for more compatible and
>>> Add the phy-reset-* property for document.
>>>
>>> This patch adds the following property for arc_emac.
>>>
>>> phy-reset-* include the following:
>>> 1) phy-reset-gpios:
>>> The phy-reset-gpios is an optional property for arc emac device tree boot.
>>> Change the binding document to match the driver code.
>>>
>>> 2) phy-reset-duration:
>>> Different boards may require different phy reset duration. Add property
>>> phy-reset-duration for device tree probe, so that the boards that need
>>> a longer reset duration can specify it in their device tree.
>>>
>>> 3) phy-reset-active-high:
>>> We need that for a custom hardware that needs the reverse reset sequence.
>>
>>    Why not infer this from the "phy-reset-gpios" prop?
>
> See:
> https://patchwork.kernel.org/patch/8564511/
 >
> phy-reset-active-high : If present then the reset sequence using the GPIO
>   specified in the "phy-reset-gpios" property is reversed (H=reset state,
>   L=operation state).

    Referring to your own suggested bindings isn't an answer. If the driver 
that you're copying from here (fec) had a reason to handle the GPIO sense with 
the help of an extra prop (legacy code), it doesn't mean your new driver needs 
to mimic this as well, AFAIU...

> Thanks,
>
> Caesar

MBR, Sergei

Thread

[PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac drivers Caesar Wang <wxt@rock-chips.com> - 2016-03-11 12:00 +0100
  [PATCH 2/6] net: arc_emac: add phy-reset-* are optional for device tree Caesar Wang <wxt@rock-chips.com> - 2016-03-11 12:00 +0100
  [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Caesar Wang <wxt@rock-chips.com> - 2016-03-11 12:10 +0100
    Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-11 14:50 +0100
      Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Heiko Stübner <heiko@sntech.de> - 2016-03-11 16:00 +0100
        Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Heiko Stübner <heiko@sntech.de> - 2016-03-11 16:00 +0100
    Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-11 19:40 +0100
      Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Caesar Wang <caesar.upstream@gmail.com> - 2016-03-13 05:00 +0100
    Re: [PATCH 3/6] net: arc_emac: support the phy reset for emac driver Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-11 20:30 +0100
  Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac  drivers Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-11 14:50 +0100
    Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac  drivers Caesar Wang <caesar.upstream@gmail.com> - 2016-03-11 15:50 +0100
      Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac  drivers Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-11 19:50 +0100
        Re: [PATCH 0/6] arc_emac: fixes the emac issues oand cleanup emac  drivers Caesar Wang <caesar.upstream@gmail.com> - 2016-03-13 05:10 +0100

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