linux-kernel - [PATCH v7 0/5] power: supply: MAX17040: Add IRQ for low level and alert SOC changes

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Date:   Sun, 17 Nov 2019 11:13:30 -0300
From:   Matheus Castello <matheus@...tello.eng.br>
To:     sre@...nel.org, krzk@...nel.org, robh+dt@...nel.org
Cc:     mark.rutland@....com, cw00.choi@...sung.com,
        b.zolnierkie@...sung.com, lee.jones@...aro.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Matheus Castello <matheus@...tello.eng.br>
Subject: [PATCH v7 0/5] power: supply: MAX17040: Add IRQ for low level and alert SOC changes

This series add IRQ handler for low level SOC alert, define a devicetree
binding attribute to configure the alert level threshold and check for
changes in SOC and power supply status for send uevents.

Max17043/17044 have a pin for alert host about low level state of charge and
this alert can be configured in a threshold from 1% up to 32% of SOC.

Tested on Toradex Colibri iMX7D, with a SparkFun Lipo Fuel Gauge module
based on MAXIM MAX17043.

Thanks Krzysztof Kozlowski, Lee Jones and Rob Herring for your time reviewing
it.

Changes since v6:
(Suggested by Lee Jones)
- Use relative paths in documentation

Changes since v5:
(Suggested by Krzysztof Kozlowski)
- Rearrange code and add max17040_enable_alert_irq on patch 1/5
- Remove useless dev_info

Matheus Castello (5):
  power: supply: max17040: Add IRQ handler for low SOC alert
  dt-bindings: power: supply: Max17040: Add DT bindings for max17040
    fuel gauge
  devicetree: mfd: max14577: Add reference to max14040_battery.txt
    descriptions
  power: supply: max17040: Config alert SOC low level threshold from FDT
  power: supply: max17040: Send uevent in SOC and status change

 .../devicetree/bindings/mfd/max14577.txt      |   2 +
 .../power/supply/max17040_battery.txt         |  33 ++++
 drivers/power/supply/max17040_battery.c       | 141 +++++++++++++++++-
 3 files changed, 171 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/supply/max17040_battery.txt

--
2.24.0.rc2