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authorArkadiusz Kubalewski2023-10-11 12:12:33 +0200
committerDavid S. Miller2023-10-15 16:08:24 +0100
commitc3c6ab95c397134bf5948f18743b3ba8008e7c47 (patch)
treee9aee38b0ac1d22cb9ec5a5b4b249575a040101c /Documentation
parent27ed30d1f861315719bd8c2b2e81576d71750331 (diff)
dpll: spec: add support for pin-dpll signal phase offset/adjust
Add attributes for providing the user with: - measurement of signals phase offset between pin and dpll - ability to adjust the phase of pin signal Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/netlink/specs/dpll.yaml30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/dpll.yaml b/Documentation/netlink/specs/dpll.yaml
index 1c1b53136c7b..cf8abe1c0550 100644
--- a/Documentation/netlink/specs/dpll.yaml
+++ b/Documentation/netlink/specs/dpll.yaml
@@ -164,6 +164,18 @@ definitions:
-
name: state-can-change
doc: pin state can be changed
+ -
+ type: const
+ name: phase-offset-divider
+ value: 1000
+ doc: |
+ phase offset divider allows userspace to calculate a value of
+ measured signal phase difference between a pin and dpll device
+ as a fractional value with three digit decimal precision.
+ Value of (DPLL_A_PHASE_OFFSET / DPLL_PHASE_OFFSET_DIVIDER) is an
+ integer part of a measured phase offset value.
+ Value of (DPLL_A_PHASE_OFFSET % DPLL_PHASE_OFFSET_DIVIDER) is a
+ fractional part of a measured phase offset value.
attribute-sets:
-
@@ -272,6 +284,18 @@ attribute-sets:
type: nest
multi-attr: true
nested-attributes: pin-parent-pin
+ -
+ name: phase-adjust-min
+ type: s32
+ -
+ name: phase-adjust-max
+ type: s32
+ -
+ name: phase-adjust
+ type: s32
+ -
+ name: phase-offset
+ type: s64
-
name: pin-parent-device
subset-of: pin
@@ -284,6 +308,8 @@ attribute-sets:
name: prio
-
name: state
+ -
+ name: phase-offset
-
name: pin-parent-pin
subset-of: pin
@@ -431,6 +457,9 @@ operations:
- capabilities
- parent-device
- parent-pin
+ - phase-adjust-min
+ - phase-adjust-max
+ - phase-adjust
dump:
pre: dpll-lock-dumpit
@@ -458,6 +487,7 @@ operations:
- state
- parent-device
- parent-pin
+ - phase-adjust
-
name: pin-create-ntf
doc: Notification about pin appearing