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docs: net: dsa: document change_tag_protocol
Support for changing the tagging protocol was added without this
operation being documented; do so now.
Fixes: 53da0ebaad
("net: dsa: allow changing the tag protocol via the "tagging" device attribute")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -600,6 +600,12 @@ Switch configuration
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upstream switch, in case there are hardware limitations in terms of supported
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upstream switch, in case there are hardware limitations in terms of supported
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tag formats.
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tag formats.
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- ``change_tag_protocol``: when the default tagging protocol has compatibility
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problems with the master or other issues, the driver may support changing it
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at runtime, either through a device tree property or through sysfs. In that
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case, further calls to ``get_tag_protocol`` should report the protocol in
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current use.
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- ``setup``: setup function for the switch, this function is responsible for setting
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- ``setup``: setup function for the switch, this function is responsible for setting
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up the ``dsa_switch_ops`` private structure with all it needs: register maps,
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up the ``dsa_switch_ops`` private structure with all it needs: register maps,
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interrupts, mutexes, locks, etc. This function is also expected to properly
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interrupts, mutexes, locks, etc. This function is also expected to properly
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