[PATCH v2 0/2] Add fine-grain temperature reporting

[Jeremy Cline <jcline@redhat.com>]

Hi folks,

This series adjusts the temp_get() interface in the thermal functions to
report milli-degrees, and additionally alters the way errors are
reported. As I went through all the users and implementations I realized
that Pascal's temp_get() implementation didn't include turning negative
temperatures to 0 like other implementations, so I separated error
reporting from the temperature in the API.

Couple of things I'm on the fence about here:

* I allowed the nvkm_therm_temp_get() functions to accept NULL as a way
  to check if temperature reading is available rather than adding a
  separate helper, but was torn about whether this is clearer than a
  separate helper function.

* I added a WARN_ON in places that previously called
  nvkm_therm_temp_get() and didn't check the return value for an error.
  This may not be a reasonable error handling method.

Jeremy Cline (2):
  drm/nouveau: return temperatures in temp_get() via parameter
  drm/nouveau: Add fine-grain temperature reporting

 .../nouveau/include/nvkm/subdev/bios/therm.h  | 13 +++++++++
 .../drm/nouveau/include/nvkm/subdev/therm.h   | 28 ++++++++++++++++++-
 drivers/gpu/drm/nouveau/nouveau_hwmon.c       | 12 ++++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/base.c  | 28 +++++++++++++++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/g84.c   | 11 ++++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/gp100.c | 11 ++++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/nv40.c  |  9 ++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/nv50.c  |  9 ++----
 .../gpu/drm/nouveau/nvkm/subdev/therm/priv.h  | 17 +++++++++--
 .../gpu/drm/nouveau/nvkm/subdev/therm/temp.c  | 12 +++++---
 10 files changed, 110 insertions(+), 40 deletions(-)

-- 
2.26.2