dpll: add pin operational state

Add pin-operstate enum and operstate_on_dpll_get callback to report
the actual hardware status of a pin with respect to its parent DPLL
device. Unlike pin-state (which reflects administrative intent set
by the user), operstate reflects what the hardware is actually doing.

Defined operational states:
  - active: pin is qualified and actively used by the DPLL
  - standby: pin is qualified but not actively used by the DPLL
  - no-signal: pin does not have a valid signal
  - qual-failed: pin signal failed qualification

The operstate is reported inside the pin-parent-device nested
attribute alongside the existing state and phase-offset attributes.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Petr Oros <poros@redhat.com>
Link: https://patch.msgid.link/20260428154907.2820654-2-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

0 files changed, 0 insertions, 0 deletions