dpll: zl3073x: Add support to get phase offset on connected input pin

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Add support to get phase offset for the connected input pin. Implement
the appropriate callback and function that performs DPLL to connected
reference phase error measurement and notifies DPLL core about changes.

The measurement is performed internally by device on background 40 times
per second but the measured value is read each second and compared with
previous value.

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Tested-by: Prathosh Satish <prathosh.satish@microchip.com>
Co-developed-by: Prathosh Satish <Prathosh.Satish@microchip.com>
Signed-off-by: Prathosh Satish <Prathosh.Satish@microchip.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Link: https://patch.msgid.link/20250715144633.149156-3-ivecera@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Ivan Vecera 2025-07-15 16:46:30 +02:00 • committed by Paolo Abeni

parent 634ca2cb06

commit 86ed4cd5fc

4 changed files with 208 additions and 1 deletions

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86

drivers/dpll/zl3073x/core.c

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105

drivers/dpll/zl3073x/dpll.c

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2

drivers/dpll/zl3073x/dpll.h

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16

drivers/dpll/zl3073x/regs.h

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