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Message-ID: <16e5c8d7-64ac-424e-9430-b683ae16a34e@denx.de>
Date: Mon, 4 Nov 2024 12:44:07 +0100
From: Marek Vasut <marex@...x.de>
To: Ajay.Kathat@...rochip.com, alexis.lothore@...tlin.com,
 linux-wireless@...r.kernel.org
Cc: davem@...emloft.net, adham.abozaeid@...rochip.com,
 claudiu.beznea@...on.dev, conor+dt@...nel.org, edumazet@...gle.com,
 kuba@...nel.org, kvalo@...nel.org, krzk+dt@...nel.org, pabeni@...hat.com,
 robh@...nel.org, devicetree@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] wifi: wilc1000: Rework bus locking

On 10/23/24 8:47 PM, Marek Vasut wrote:

Hello again,

>> Is power-save enabled during the test. With PS enabled, The SDIO 
>> commands may
>> fail momentarily but it should recover.
> 
> It seems it gets enabled after first ifconfig up, that's a good hint, 
> I'll try to disable it and see if that makes them errors go away. Thanks!
> 
> Do you have any details on WHY would such sporadic errors occur and how 
> to make those go away even with PS enabled ?
Can you explain why does uAPSD (iw ...set power_save off) adversely 
affect SDIO bus stability ?

Can you explain how to prevent that or shall we disable uAPSD altogether ?

Thank you

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