[v2,0/3] hwmon: scmi: Scale values to target desired HWMON units

Message

Florian Fainelli May 7, 2019, 7:35 p.m. UTC

Hi Sudeep, Guenter,

This patch series adds support for scaling SCMI sensor values read from
firmware. Sudeep, let me know if you think we should be treating scale
== 0 as a special value to preserve some firmware compatibility (not
that this would be desired).

Changes in v2:

- added a helper function in kernel.h: __pow10()
- made the scale in scmi_sensor_info an s8 type, added defines for
  checking the sign bit and sign extending with a mask
- simplify computations in hwmon driver

Florian Fainelli (3):
  kernel: Provide a __pow10() function
  firmware: arm_scmi: Fetch and store sensor scale
  hwmon: scmi: Scale values to target desired HWMON units

 drivers/firmware/arm_scmi/sensors.c |  6 ++++++
 drivers/hwmon/scmi-hwmon.c          | 30 ++++++++++++++++++++++++++++-
 include/linux/kernel.h              | 11 +++++++++++
 include/linux/scmi_protocol.h       |  1 +
 4 files changed, 47 insertions(+), 1 deletion(-)