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* [PATCH net-next v2 0/2] dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration
@ 2025-12-16 12:16 A. Sverdlin
  2025-12-16 12:17 ` [PATCH net-next v2 1/2] dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate A. Sverdlin
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: A. Sverdlin @ 2025-12-16 12:16 UTC (permalink / raw)
  To: netdev
  Cc: Alexander Sverdlin, Hauke Mehrtens, Andrew Lunn, Vladimir Oltean,
	David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni,
	Rob Herring, Krzysztof Kozlowski, Conor Dooley, devicetree,
	linux-kernel, Daniel Golle

From: Alexander Sverdlin <alexander.sverdlin@siemens.com>

Maxlinear GSW1xx switches offer slew rate configuration bits for R(G)MII
interface. The default state of the configuration bits is "normal", while
"slow" can be used to reduce the radiated emissions. Add the support for
the latter option into the driver as well as the new DT bindings.

Changelog:
v2:
- do not hijack gsw1xx_phylink_mac_select_pcs() for configuring the port,
  introduce struct gswip_hw_info::port_setup callback
- actively configure "normal" slew rate (if the new DT property is missing)
- properly use regmap_set_bits() (v1 had reg and value mixed up)
v1:
- https://lore.kernel.org/all/20251212204557.2082890-1-alexander.sverdlin@siemens.com/

Alexander Sverdlin (2):
  dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate
  net: dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration

 .../bindings/net/dsa/lantiq,gswip.yaml        |  5 ++++
 drivers/net/dsa/lantiq/lantiq_gswip.h         |  1 +
 drivers/net/dsa/lantiq/lantiq_gswip_common.c  |  6 +++++
 drivers/net/dsa/lantiq/mxl-gsw1xx.c           | 26 +++++++++++++++++++
 drivers/net/dsa/lantiq/mxl-gsw1xx.h           |  2 ++
 5 files changed, 40 insertions(+)

-- 
2.52.0


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2025-12-19 20:43 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-12-16 12:16 [PATCH net-next v2 0/2] dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration A. Sverdlin
2025-12-16 12:17 ` [PATCH net-next v2 1/2] dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate A. Sverdlin
2025-12-19 20:43   ` Rob Herring
2025-12-16 12:17 ` [PATCH net-next v2 2/2] net: dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration A. Sverdlin
2025-12-16 13:20   ` Daniel Golle
2025-12-19  8:57 ` [PATCH net-next v2 0/2] " Paolo Abeni

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