[PATCH v1 phy-next 7/8] soc: fsl: guts: implement the RCW override procedure

[Vladimir Oltean]

On Fri, Jun 12, 2026 at 04:44:30PM +0100, Conor Dooley wrote:
> On Thu, Jun 11, 2026 at 10:39:39PM +0300, Vladimir Oltean wrote:
> > From: Ioana Ciornei <ioana.ciornei at nxp.com>
> > 
> > Add support for the RCW override procedure which enables runtime
> > reconfiguration of the protocol running on a SerDes lane. The procedure
> > is done through the DCFG DCSR space which now can be defined as the
> > second memory region of the guts DT node.
> > Support is added on the following SoCs: LS1046A, LS1088A, LS2088A.
> > 
> > The procedure is exported to the "client" driver - the Lynx10G SerDes
> > PHY driver - through the following functions:
> > - fsl_guts_lane_init() used to notify the initial / boot time lane mode
> >   running on a SerDes lane.
> > - fsl_guts_lane_validate() used to validate that changing the protocol
> >   on a specific lane is supported.
> > - fsl_guts_lane_set_mode() which can be used to request the RCW
> >   procedure be executed for a specific lane.
> > 
> > Since the RCW override procedure is different depending on the SoC, the
> > private fsl_soc_data structure is updated with two new per SoC callbacks
> > (.serdes_get_rcw_override() and .serdes_init_rcwcr()) which get used
> > from the generic fsl_guts_lane_set_mode() function. These two callbacks
> > hide all the SoC specific register offsets, masks and values so that the
> > _set_mode() procedure is straightforward.
> > 
> > Signed-off-by: Ioana Ciornei <ioana.ciornei at nxp.com>
> > Signed-off-by: Vladimir Oltean <vladimir.oltean at nxp.com>
> > ---
> > Cc: Conor Dooley <conor at kernel.org>
> > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt at linaro.org>
> > Cc: Rob Herring <robh at kernel.org>
> > Cc: devicetree at vger.kernel.org
> 
> Wrong CC list for this specific patch?

No, it was intentional. Provided for context, so DT reviewers can check
that extra properties not defined in the schema aren't being used.