[PATCH v2 0/2] Allow caching of buck registers when no GPIO input control is configured

[André Svensson]

This series introduces a boolean DT property, dlg,no-gpio-control, for
the DA91xx regulators. Use this property to indicate that GPIO control
is not configured with the functions DVC/RELOAD/EN, allowing buck
registers to be cached.

The DA9121 driver checks dlg,no-gpio-control and updates regmap_config's
volatile_table if the property is present. Buck registers are removed
from the volatile_table if the property is present, enabling caching of
the registers, which removes I2C reads when performing an I2C write to
the buck registers.

---
Changes in v2:
- Update commit messages to clarify why dlg,no-gpio-control is needed.
- Add error check for mutually exclusive properties.
- Link to v1: https://lore.kernel.org/r/20260309-no-gpio-control-v1-0-06d2365917c6@xxxxxxxx

---
André Svensson (2):
      regulator: dt-bindings: dlg,da9121: Add dlg,no-gpio-control
      regulator: da9121: Allow caching BUCK registers

 .../devicetree/bindings/regulator/dlg,da9121.yaml  | 49 ++++++++++++++++++++++
 drivers/regulator/da9121-regulator.c               | 43 +++++++++++++++----
 2 files changed, 85 insertions(+), 7 deletions(-)
---
base-commit: 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b
change-id: 20260309-no-gpio-control-9cc02b1e8994

Best regards,
-- 
André Svensson <andre.svensson@xxxxxxxx>