[RFC net PATCH v1] net: pcs: pcs-mtk-lynxi: fix bpi-r3 serdes configuration

[Frank Wunderlich (linux)]

Am 2026-04-09 23:55, schrieb Vladimir Oltean:
> On Thu, Apr 09, 2026 at 03:33:42PM +0200, Frank Wunderlich wrote:
>> From: Frank Wunderlich <frank-w at public-files.de>
>> 
>> Commit 8871389da151 introduces common pcs dts properties which writes
>> rx=normal,tx=normal polarity to register SGMSYS_QPHY_WRAP_CTRL of 
>> switch.
>> This is initialized with tx-bit set and so change inverts polarity
>> compared to before.
>> 
>> It looks like mt7531 has tx polarity inverted in hardware and set 
>> tx-bit
>> by default to restore the normal polarity.
>> 
>> Till this patch the register write was only called when 
>> mediatek,pnswap
>> property was set which cannot be done for switch because the fw-node 
>> param
>> was always NULL from switch driver in the mtk_pcs_lynxi_create call.
>> 
>> Do not configure switch side like it's done before.
>> 
>> Fixes: 8871389da151 ("net: pcs: pcs-mtk-lynxi: deprecate 
>> "mediatek,pnswap"")
>> Signed-off-by: Frank Wunderlich <frank-w at public-files.de>
>> ---
> 
> Reviewed-by: Vladimir Oltean <vladimir.oltean at nxp.com>

Hi,

just a gentle ping as i still not see this in torvalds/master.

regards Frank