[v5,00/21] Variety of fixes and new features for mr75203 driver

Message

Eliav Farber Sept. 8, 2022, 3:24 p.m. UTC

List of fixes:
 - Fix "intel,vm-map" property to be optional.
 - Fix VM sensor allocation when "intel,vm-map" not defined.
 - Fix multi-channel voltage reading.
 - Fix voltage equation for negative source input.
 - Modify the temperature equation according to series 5 datasheet.
 - Fix coding style issue.

List of new features:
 - Modify "reset" property to be optional.
 - Add optional "moortec,vm-active-channels" property to define the number
   of active channels per VM.
 - Add support for mr76006 pre-scaler to multiply the voltage result by 2.
 - Add support for series 6 temperature equation.
 - Add coefficient properties to fine tune the temperature equation.
 - Add debugfs to read and write temperature coefficients

---------

Changes between v4 and v5:
- 0004: Add detailed comment in code explaining the cast and the div instead of
  right shift or use of BIT().
- 0011: Fix typo in description (nou --> not).
- 0020: Return j coefficient to use debugfs_create_file() instead of
  debugfs_create_u32() because j is signed.
- 0021: Move the coding style patch to be last in the series (it does not fix
  the code), and remove the "Fixes:" tag.

Changes between v3 and v4:
*) Provide a Fixes tag for all fixes in the series.
*) Start series with fixes.
*) New patch to add description in moortec,mr75203.yaml.
*) New patch to add moortec to vendor-prefixes.
*) Fix moortec,mr75203.yaml checker errors.
*) Remove validation of device-tree parameters.
*) Fix per patch specific comments (detailed in each patch).

Changes between v2 and v3:
*) Add "moortec" prefix to all new device-tree properties.
*) Change order of patches.
*) Add explanations to better understand the changes.
*) Change "reset" property to be optional and remove the
  "reset-control-skip" property.
*) Split the patch for "fix multi-channel voltage reading" to two
   patches.
*) Change pre-scaler property format and fix typo (scalar --> scaler).
*) Fix voltage equation to support negative values instead of limiting
   value to zero.
*) Temperature equation - protect from overflow and add clamping.
*) Add new "moortec,ts-series" property to select between temperature
   equation of series 5 or series 6.

Changes between v1 and v2:
 *) Fix compilation error for patch 08/16:
    "warning: ISO C90 forbids variable length array"

---------

Eliav Farber (21):
  dt-bindings: hwmon: (mr75203) fix "intel,vm-map" property to be
    optional
  hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not
    defined
  hwmon: (mr75203) update pvt->v_num and vm_num to the actual number of
    used sensors
  hwmon: (mr75203) fix voltage equation for negative source input
  hwmon: (mr75203) fix multi-channel voltage reading
  hwmon: (mr75203) enable polling for all VM channels
  dt-bindings: hwmon: (mr75203) add description for Moortec's PVT
    controller
  dt-bindings: hwmon: (mr75203) change "resets" property to be optional
  hwmon: (mr75203) skip reset-control deassert for SOCs that don't
    support it
  dt-bindings: vendor-prefixes: add vendor prefix for Moortec
  dt-bindings: hwmon: (mr75203) add "moortec,vm-active-channels"
    property
  hwmon: (mr75203) add VM active channel support
  dt-bindings: hwmon: (mr75203) add "moortec,vm-pre-scaler-x2" property
  hwmon: (mr75203) add VM pre-scaler x2 support
  hwmon: (mr75203) modify the temperature equation according to series 5
    datasheet
  dt-bindings: hwmon: (mr75203) add "moortec,ts-series" property
  hwmon: (mr75203) add support for series 6 temperature equation
  dt-bindings: hwmon: (mr75203) add coefficient properties for the
    thermal equation
  hwmon: (mr75203) parse temperature coefficients from device-tree
  hwmon: (mr75203) add debugfs to read and write temperature
    coefficients
  hwmon: (mr75203) fix coding style space errors

 .../bindings/hwmon/moortec,mr75203.yaml       |  97 +++-
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 drivers/hwmon/mr75203.c                       | 433 +++++++++++++++---
 3 files changed, 466 insertions(+), 66 deletions(-)