Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge falling - but instead rely on Devicetree to configure it.
The Maxim 14577/77836 datasheets describe the interrupt line as active low with a requirement of acknowledge from the CPU therefore the edge falling is not correct. Signed-off-by: Krzysztof Kozlowski <[email protected]> --- This patch should wait till DTS changes are merged, as it relies on proper Devicetree. --- .../devicetree/bindings/power/supply/max17040_battery.txt | 2 +- drivers/power/supply/max17040_battery.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt index c802f664b508..194eb9fe574d 100644 --- a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt +++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt @@ -39,7 +39,7 @@ Example: reg = <0x36>; maxim,alert-low-soc-level = <10>; interrupt-parent = <&gpio7>; - interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; wakeup-source; }; diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c index d956c67d5155..f737de0470de 100644 --- a/drivers/power/supply/max17040_battery.c +++ b/drivers/power/supply/max17040_battery.c @@ -367,7 +367,7 @@ static int max17040_enable_alert_irq(struct max17040_chip *chip) flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; ret = devm_request_threaded_irq(&client->dev, client->irq, NULL, - max17040_thread_handler, flags, + max17040_thread_handler, IRQF_ONESHOT, chip->battery->desc->name, chip); return ret; -- 2.25.1
