wireguard-linux/drivers/dpll, branch devel

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-04-30T19:51:05Z

Cross-merge networking fixes after downstream PR (net-7.1-rc2). No conflicts, or adjacent changes. Signed-off-by: Jakub Kicinski

dpll: zl3073x: implement pin operational state reporting

2026-04-30T14:21:49Z

Implement operstate_on_dpll_get callback for input pins to report the actual hardware status: - active: pin is the currently locked reference - standby: signal is valid but pin is not actively used - no-signal: reference monitor reports Loss of Signal (LOS) - qual-failed: reference monitor reports a qualification failure (SCM, CFM, GST, PFM, eSync or Split-XO) Separate administrative state (state_on_dpll_get) from operational state: admin state now reports purely the user-requested intent (connected in reflock mode, selectable in auto mode). Switch periodic monitoring to track operstate changes instead of the mixed admin/oper state that was previously reported. Add ref_mon_status bit definitions to regs.h. Signed-off-by: Ivan Vecera Reviewed-by: Petr Oros Link: https://patch.msgid.link/20260428154907.2820654-3-ivecera@redhat.com Signed-off-by: Paolo Abeni

dpll: add pin operational state

2026-04-30T14:21:49Z

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 Reviewed-by: Jiri Pirko Reviewed-by: Vadim Fedorenko Reviewed-by: Petr Oros Link: https://patch.msgid.link/20260428154907.2820654-2-ivecera@redhat.com Signed-off-by: Paolo Abeni

dpll: export __dpll_pin_change_ntf() for use under dpll_lock

2026-04-30T09:37:39Z

Export __dpll_pin_change_ntf() so that drivers can send pin change notifications from within pin callbacks, which are already called under dpll_lock. Using dpll_pin_change_ntf() in that context would deadlock. Add lockdep_assert_held() to catch misuse without the lock held. Acked-by: Vadim Fedorenko Signed-off-by: Ivan Vecera Signed-off-by: Petr Oros Tested-by: Alexander Nowlin Reviewed-by: Arkadiusz Kubalewski Signed-off-by: Jacob Keller Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-9-cdcb48303fd8@intel.com Signed-off-by: Paolo Abeni

dpll: zl3073x: add ref-sync pair support

2026-04-12T15:27:34Z

Add support for ref-sync pair registration using the 'ref-sync-sources' phandle property from device tree. A ref-sync pair consists of a clock reference and a low-frequency sync signal where the DPLL locks to the clock reference but phase-aligns to the sync reference. The implementation: - Stores fwnode handle in zl3073x_dpll_pin during pin registration - Adds ref_sync_get/set callbacks to read and write the sync control mode and pair registers - Validates ref-sync frequency constraints: sync signal must be 8 kHz or less, clock reference must be 1 kHz or more and higher than sync - Excludes sync source from automatic reference selection by setting its priority to NONE on connect; on disconnect the priority is left as NONE and the user must explicitly make the pin selectable again - Iterates ref-sync-sources phandles to register declared pairings via dpll_pin_ref_sync_pair_add() Reviewed-by: Petr Oros Reviewed-by: Prathosh Satish Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260408102716.443099-6-ivecera@redhat.com Signed-off-by: Jakub Kicinski

dpll: zl3073x: add ref sync and output clock type helpers

2026-04-12T15:27:33Z

Add ZL_REF_SYNC_CTRL_MODE_REFSYNC_PAIR and ZL_REF_SYNC_CTRL_PAIR register definitions. Add inline helpers to get and set the sync control mode and sync pair fields of the reference sync control register: zl3073x_ref_sync_mode_get/set() - ZL_REF_SYNC_CTRL_MODE field zl3073x_ref_sync_pair_get/set() - ZL_REF_SYNC_CTRL_PAIR field Add inline helpers to get and set the clock type field of the output mode register: zl3073x_out_clock_type_get/set() - ZL_OUTPUT_MODE_CLOCK_TYPE field Convert existing esync callbacks to use the new helpers. Reviewed-by: Petr Oros Reviewed-by: Prathosh Satish Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260408102716.443099-4-ivecera@redhat.com Signed-off-by: Jakub Kicinski

dpll: zl3073x: use FIELD_MODIFY() for clear-and-set patterns

2026-04-12T15:27:33Z

Replace open-coded clear-and-set bitfield operations with FIELD_MODIFY(). Reviewed-by: Petr Oros Reviewed-by: Prathosh Satish Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260408102716.443099-3-ivecera@redhat.com Signed-off-by: Jakub Kicinski

dpll: zl3073x: clean up esync get/set and use zl3073x_out_is_ndiv()

2026-04-12T15:27:33Z

Return -EOPNOTSUPP early in esync_get callbacks when esync is not supported instead of conditionally populating the range at the end. This simplifies the control flow by removing the finish label/goto in the output variant and the conditional range assignment in both input and output variants. Replace open-coded N-div signal format switch statements with zl3073x_out_is_ndiv() helper in esync_get, esync_set and frequency_set callbacks. Reviewed-by: Petr Oros Reviewed-by: Prathosh Satish Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260408102716.443099-2-ivecera@redhat.com Signed-off-by: Jakub Kicinski

dpll: zl3073x: implement frequency monitoring

2026-04-03T23:48:01Z

Extract common measurement latch logic from zl3073x_ref_ffo_update() into a new zl3073x_ref_freq_meas_latch() helper and add zl3073x_ref_freq_meas_update() that uses it to latch and read absolute input reference frequencies in Hz. Add meas_freq field to struct zl3073x_ref and the corresponding zl3073x_ref_meas_freq_get() accessor. The measured frequencies are updated periodically alongside the existing FFO measurements. Add freq_monitor boolean to struct zl3073x_dpll and implement the freq_monitor_set/get device callbacks to enable/disable frequency monitoring via the DPLL netlink interface. Implement measured_freq_get pin callback for input pins that returns the measured input frequency in mHz. Reviewed-by: Petr Oros Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260402184057.1890514-4-ivecera@redhat.com Signed-off-by: Jakub Kicinski

dpll: add frequency monitoring callback ops

2026-04-03T23:48:01Z

Add new callback operations for a dpll device: - freq_monitor_get(..) - to obtain current state of frequency monitor feature from dpll device, - freq_monitor_set(..) - to allow feature configuration. Add new callback operation for a dpll pin: - measured_freq_get(..) - to obtain the measured frequency in mHz. Obtain the feature state value using the get callback and provide it to the user if the device driver implements callbacks. The measured_freq_get pin callback is only invoked when the frequency monitor is enabled. The freq_monitor_get device callback is required when measured_freq_get is provided by the driver. Execute the set callback upon user requests. Reviewed-by: Vadim Fedorenko Signed-off-by: Ivan Vecera Link: https://patch.msgid.link/20260402184057.1890514-3-ivecera@redhat.com Signed-off-by: Jakub Kicinski