From: "Arınç ÜNAL" <arinc.unal@arinc9.com>
To: Justin Swartz <justin.swartz@risingedge.co.za>
Cc: Daniel Golle <daniel@makrotopia.org>,
DENG Qingfang <dqfext@gmail.com>,
Sean Wang <sean.wang@mediatek.com>, Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] net: dsa: mt7530: increase reset hold time
Date: Wed, 13 Mar 2024 15:06:04 +0300 [thread overview]
Message-ID: <2640a495-97a0-4669-a53a-e367af956a78@arinc9.com> (raw)
In-Reply-To: <e6525cac666a033a5866465abb3e63f1@risingedge.co.za>
On 13.03.2024 14:52, Justin Swartz wrote:
>
> On 2024-03-13 10:59, Arınç ÜNAL wrote:
>> This ship has sailed anyway. Now the changes the first patch did must be
>> reverted too. I will deal with this from now on, you can stop sending
>> patches regarding this.
>
> At least if the first patch isn't reverted, the approach used is
> less likely to result in the problem occuring, IMHO.
I disagree that the previous approach is less likely to result in the
problem occurring. If you don't like the delay amount we agreed on, feel
free to express a higher amount.
I also disagree on introducing a solution that is in addition to another
solution, both of which fix the same problem.
>
> The delay between deliberately switching the LEDs off, instead of
> only waiting on chip reset logic to handle that, and the reset
> assertion could be considered a "reset setup" period to complement
> the original reset hold period.
>
> Increasing the hold period to what should be 5000 - 5100 usec,
> definitely made the problem go away my testing, but the previous
> approach is (if nothing else) more explicit in its intent.
I don't want any unnecessary complications on the code I'm maintaining. I
already gave a clear intent on the patch log that introduces a simpler and
more efficient approach, it doesn't need to be on the code.
Arınç
next prev parent reply other threads:[~2024-03-13 12:06 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-05 4:39 [PATCH] net: dsa: mt7530: disable LEDs before reset Justin Swartz
2024-03-08 9:51 ` Arınç ÜNAL
2024-03-08 14:46 ` Daniel Golle
2024-03-12 0:07 ` Justin Swartz
2024-03-12 1:03 ` Andrew Lunn
2024-03-12 2:41 ` Arınç ÜNAL
2024-03-12 12:01 ` Justin Swartz
2024-03-12 14:06 ` Arınç ÜNAL
2024-03-12 15:25 ` Justin Swartz
2024-03-12 16:35 ` Justin Swartz
2024-03-12 19:21 ` [PATCH] net: dsa: mt7530: increase reset hold time Justin Swartz
2024-03-13 8:59 ` Arınç ÜNAL
2024-03-13 11:52 ` Justin Swartz
2024-03-13 12:06 ` Arınç ÜNAL [this message]
2024-03-13 13:13 ` Justin Swartz
2024-03-13 15:04 ` Arınç ÜNAL
2024-03-13 15:38 ` Justin Swartz
2024-03-13 15:51 ` Arınç ÜNAL
2024-03-11 21:10 ` [PATCH] net: dsa: mt7530: disable LEDs before reset patchwork-bot+netdevbpf
2024-03-11 21:22 ` Arınç ÜNAL
2024-03-11 21:58 ` Jakub Kicinski
2024-03-11 21:58 ` Daniel Golle
2024-03-11 23:27 ` Arınç ÜNAL
2024-03-11 23:43 ` Daniel Golle
2024-03-12 3:17 ` Arınç ÜNAL
2024-03-12 8:38 ` Arınç ÜNAL
2024-03-12 10:46 ` Paolo Abeni
2024-03-12 11:21 ` Arınç ÜNAL
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