Thread (2 messages) 2 messages, 2 authors, 2026-02-19

Re: [PATCH v3] net: usb: lan78xx: scan all MDIO addresses on LAN7801

From: patchwork-bot+netdevbpf@kernel.org
Date: 2026-02-19 22:49:57
Also in: linux-usb, lkml

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Wed, 18 Feb 2026 05:28:22 +0000 you wrote:
The LAN7801 is designed exclusively for external PHYs (unlike the
LAN7800/LAN7850 which have internal PHYs), but lan78xx_mdio_init()
restricts PHY scanning to MDIO addresses 0-7 by setting phy_mask to
~(0xFF). This prevents discovery of external PHYs wired to addresses
outside that range.

One such case is the DP83TC814 100BASE-T1 PHY, which is typically
configured at MDIO address 10 via PHYAD bootstrap pins and goes
undetected with the current mask.

[...]
Here is the summary with links:
  - [v3] net: usb: lan78xx: scan all MDIO addresses on LAN7801
    https://git.kernel.org/netdev/net/c/f1e2f0ce704e

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help