linux-kernel - Re: [PATCH v2 phy 15/16] phy: lynx-28g: truly power the lanes up or down

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Message-ID: <d0c8bbf8-a0c5-469f-a148-de2235948c0f@solid-run.com>
Date: Wed, 24 Sep 2025 15:57:56 +0000
From: Josua Mayer <josua@...id-run.com>
To: Vladimir Oltean <vladimir.oltean@....com>
CC: "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>, Ioana
 Ciornei <ioana.ciornei@....com>, Vinod Koul <vkoul@...nel.org>, Kishon Vijay
 Abraham I <kishon@...nel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 phy 15/16] phy: lynx-28g: truly power the lanes up or
 down


Am 24.09.25 um 15:06 schrieb Vladimir Oltean:
> On Wed, Sep 24, 2025 at 10:09:26AM +0000, Josua Mayer wrote:
>> Unbounded loop, perhaps use timeout.
>>
>> This can fail on unbalanced calls as you discovered,
>> but also e.g. when a pll is unstable.
>>
>> See below for when this came up previously:
>>
>> https://lore.kernel.org/all/20240218-lynx28g-infinite-loop-v1-1-59cc5cef8367@solid-run.com/
> Ok, I can make this a 17-patch set, no problem.
>
> What happened to your patch? Did it get lost?
I suspect I got distracted and never sent a v2.
> Do you mind if I write a
> new one myself, with a single read_poll_timeout() call for both
> LNaTRSTCTL and LNaRRSTCTL, to keep the functionality same as before?
Sure, feel free.
Since tx and rx are in different registers you will still need to poll each one?