netdev - Re: [PATCH V2] net: stmmac: dwmac-tegra: Fix link bring-up sequence

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Message-Id: 
 <172898943126.1114309.13560475408965156147.git-patchwork-notify@kernel.org>
Date: Tue, 15 Oct 2024 10:50:31 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Paritosh Dixit <paritoshd@...dia.com>
Cc: alexandre.torgue@...s.st.com, joabreu@...opsys.com, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 mcoquelin.stm32@...il.com, thierry.reding@...il.com, jonathanh@...dia.com,
 vbhadram@...dia.com, ruppala@...dia.com, netdev@...r.kernel.org,
 linux-tegra@...r.kernel.org
Subject: Re: [PATCH V2] net: stmmac: dwmac-tegra: Fix link bring-up sequence

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Thu, 10 Oct 2024 10:29:08 -0400 you wrote:
> The Tegra MGBE driver sometimes fails to initialize, reporting the
> following error, and as a result, it is unable to acquire an IP
> address with DHCP:
> 
>  tegra-mgbe 6800000.ethernet: timeout waiting for link to become ready
> 
> As per the recommendation from the Tegra hardware design team, fix this
> issue by:
> - clearing the PHY_RDY bit before setting the CDR_RESET bit and then
> setting PHY_RDY bit before clearing CDR_RESET bit. This ensures valid
> data is present at UPHY RX inputs before starting the CDR lock.
> - adding the required delays when bringing up the UPHY lane. Note we
> need to use delays here because there is no alternative, such as
> polling, for these cases. Using the usleep_range() instead of ndelay()
> as sleeping is preferred over busy wait loop.
> 
> [...]

Here is the summary with links:
  - [V2] net: stmmac: dwmac-tegra: Fix link bring-up sequence
    https://git.kernel.org/netdev/net/c/1cff6ff302f5

You are awesome, thank you!
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