linux-kernel - [PATCH v2 0/3] hwmon: scmi: Scale values to target desired HWMON units

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Message-Id: <20190507193504.28248-1-f.fainelli@gmail.com>
Date:   Tue,  7 May 2019 12:35:01 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-arm-kernel@...ts.infradead.org,
        linux-hwmon@...r.kernel.org (open list:HARDWARE MONITORING),
        bcm-kernel-feedback-list@...adcom.com
Subject: [PATCH v2 0/3] hwmon: scmi: Scale values to target desired HWMON units

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(-)

-- 
2.17.1