dpll: add STATE_CONNECTED_OVERRIDE pin capability

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Add DPLL_PIN_CAPABILITIES_STATE_CONNECTED_OVERRIDE capability flag
that indicates a pin can be set to connected regardless of the
current DPLL device mode, overriding the active input selection.
This is useful for automatic-only DPLL devices where mode cannot
be switched to manual, allowing userspace to directly connect
such pin from automatic mode.

The capability requires STATE_CAN_CHANGE to be set as well;
dpll_pin_register() warns if a driver violates this.

Document the new capability in the Pin selection section of
Documentation/driver-api/dpll.rst.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Link: https://patch.msgid.link/20260630125536.720717-2-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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This commit is contained in:

Ivan Vecera 2026-06-30 14:55:32 +02:00 • committed by Paolo Abeni

parent 1704cc8640

commit b1d0c41208

4 changed files with 22 additions and 1 deletions

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7

Documentation/driver-api/dpll.rst

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6

Documentation/netlink/specs/dpll.yaml

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6

drivers/dpll/dpll_core.c

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4

include/uapi/linux/dpll.h

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