Re: [Patch net v2] net: phy: lan87xx: change interrupt src of link_up to comm_ready

From: patchwork-bot+netdevbpf
Date: Thu Sep 08 2022 - 05:21:38 EST


Hello:

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

On Mon, 5 Sep 2022 20:57:50 +0530 you wrote:
> Currently phy link up/down interrupt is enabled using the
> LAN87xx_INTERRUPT_MASK register. In the lan87xx_read_status function,
> phy link is determined using the T1_MODE_STAT_REG register comm_ready bit.
> comm_ready bit is set using the loc_rcvr_status & rem_rcvr_status.
> Whenever the phy link is up, LAN87xx_INTERRUPT_SOURCE link_up bit is set
> first but comm_ready bit takes some time to set based on local and
> remote receiver status.
> As per the current implementation, interrupt is triggered using link_up
> but the comm_ready bit is still cleared in the read_status function. So,
> link is always down. Initially tested with the shared interrupt
> mechanism with switch and internal phy which is working, but after
> implementing interrupt controller it is not working.
> It can fixed either by updating the read_status function to read from
> LAN87XX_INTERRUPT_SOURCE register or enable the interrupt mask for
> comm_ready bit. But the validation team recommends the use of comm_ready
> for link detection.
> This patch fixes by enabling the comm_ready bit for link_up in the
> LAN87XX_INTERRUPT_MASK_2 register (MISC Bank) and link_down in
> LAN87xx_INTERRUPT_MASK register.
>
> [...]

Here is the summary with links:
- [net,v2] net: phy: lan87xx: change interrupt src of link_up to comm_ready
https://git.kernel.org/netdev/net/c/5382033a3522

You are awesome, thank you!
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