[PATCH 14/22] dt-bindings: power: supply: add AXP20X/AXP22X battery DT binding
From: robh@kernel.org (Rob Herring)
Date: 2017-01-04 13:22:33
Also in:
linux-devicetree, linux-iio, linux-pm, lkml
On Mon, Jan 02, 2017 at 05:37:14PM +0100, Quentin Schulz wrote:
quoted hunk ↗ jump to hunk
The X-Powers AXP20X and AXP22X PMICs can have a battery as power supply. This patch adds the DT binding documentation for the battery power supply which gets various data from the PMIC, such as the battery status (charging, discharging, full, dead), current max limit, current current, battery capacity (in percentage), voltage max and min limits, current voltage and battery capacity (in Ah). Signed-off-by: Quentin Schulz <redacted> --- .../bindings/power/supply/axp20x_battery.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/axp20x_battery.txtdiff --git a/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt new file mode 100644 index 0000000..5489d0d --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/axp20x_battery.txt@@ -0,0 +1,27 @@ +AXP20x and AXP22x battery power supply + +Required Properties: + - compatible, one of: + "x-powers,axp209-battery-power-supply" + "x-powers,axp221-battery-power-supply" + - io-channels: phandles to battery voltage, charge and discharge + currents ADC channels + - io-channel-names = "batt_v", "batt_chrg_i", "batt_dischrg_i"; + +This node is a subnode of the axp20x/axp22x PMIC. + +The AXP20X and AXP22X can read the battery voltage, charge and discharge +currents of the battery by reading ADC channels from the AXP20X/AXP22X +ADC. + +Example: + +&axp209 { + battery_power_supply: battery_power_supply {
Humm, I guess you power-supply is not sufficient, so 'battery-power-supply' and similar for ac.
+ compatible = "x-powers,axp209-battery-power-supply"; + io-channels = <&axp209_adc 7>, <&axp209_adc 8>, + <&axp209_adc 9>; + io-channel-names = "batt_v", "batt_chrg_i", + "batt_dischrg_i"; + } +}; -- 2.9.3