The SC27XX fuel gauge supports a low voltage alarm IRQ, which is used for more accurate battery capacity measurements with lower voltages. This was unfortunately never documented in bindings, do so now. Signed-off-by: Stanislav Jakubek <stano.jakubek@xxxxxxxxx> --- Initial Linux driver submission adding this feature: https://lore.kernel.org/lkml/ee1dd39f126bd03fb88381de9663d32df994d341.1542185618.git.baolin.wang@xxxxxxxxxx/ The only in-tree user (sc2731.dtsi) has had interrupts specified since its initial fuel-gauge submission: https://lore.kernel.org/lkml/4f66af3b47ba241380f8092e08879aca6d7c35b3.1548052878.git.baolin.wang@xxxxxxxxxx/ .../devicetree/bindings/power/supply/sc27xx-fg.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml index de43e45a43b7..9108a2841caf 100644 --- a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml +++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml @@ -27,6 +27,9 @@ properties: battery-detect-gpios: maxItems: 1 + interrupts: + maxItems: 1 + io-channels: items: - description: Battery Temperature ADC @@ -53,6 +56,7 @@ required: - compatible - reg - battery-detect-gpios + - interrupts - io-channels - io-channel-names - nvmem-cells @@ -88,6 +92,8 @@ examples: compatible = "sprd,sc2731-fgu"; reg = <0xa00>; battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>; + interrupt-parent = <&sc2731_pmic>; + interrupts = <4>; io-channels = <&pmic_adc 5>, <&pmic_adc 14>; io-channel-names = "bat-temp", "charge-vol"; nvmem-cells = <&fgu_calib>; -- 2.34.1
