On Thu, Dec 10, 2020 at 10:25:19PM +0100, Krzysztof Kozlowski wrote:
> The Maxim fuel gauge datasheets describe the interrupt line as active
> low with a requirement of acknowledge from the CPU. The falling edge
> interrupt will mostly work but it's not correct.
>
> Fixes: e8614292cd41 ("ARM: dts: Add Maxim 77693 fuel gauge node for exynos4412-trats2")
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Hi Marek,
I remember you were reporting that on Trats2 you see fuel gauge
interrupt storm with this patchset. Is it correct? Shall I wait with
applying this?
Best regards,
Krzysztof
> diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
> index 111c32bae02c..b8b75dc81aa1 100644
> --- a/arch/arm/boot/dts/exynos4412-midas.dtsi
> +++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
> @@ -221,7 +221,7 @@ i2c_max77693_fuel: i2c-gpio-3 {
> fuel-gauge@36 {
> compatible = "maxim,max17047";
> interrupt-parent = <&gpx2>;
> - interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> pinctrl-names = "default";
> pinctrl-0 = <&max77693_fuel_irq>;
> reg = <0x36>;
> --
> 2.25.1
>
