Phase-adjust values are currently limited only by a min-max range. Some
hardware requires, for certain pin types, that values be multiples of
a specific granularity, as in the zl3073x driver.

Patch 1: Adds 'phase-adjust-gran' pin attribute and an appropriate
         handling
Patch 2: Adds a support for this attribute into zl3073x driver

Ivan Vecera (2):
  dpll: add phase-adjust-gran pin attribute
  dpll: zl3073x: Specify phase adjustment granularity for pins

 Documentation/driver-api/dpll.rst     | 36 +++++++++--------
 Documentation/netlink/specs/dpll.yaml |  7 ++++
 drivers/dpll/dpll_netlink.c           | 12 +++++-
 drivers/dpll/zl3073x/dpll.c           | 58 +++++++--------------------
 drivers/dpll/zl3073x/prop.c           | 11 +++++
 include/linux/dpll.h                  |  1 +
 include/uapi/linux/dpll.h             |  1 +
 7 files changed, 65 insertions(+), 61 deletions(-)

-- 
2.51.0

On Fri, 24 Oct 2025 16:49:25 +0200 Ivan Vecera wrote:
> Phase-adjust values are currently limited only by a min-max range. Some
> hardware requires, for certain pin types, that values be multiples of
> a specific granularity, as in the zl3073x driver.

DPLL maintainers, please review