On 10.12.2020 22:28, Krzysztof Kozlowski wrote:
> The Samsung PMIC datasheets describe the interrupt line as active low
> with a requirement of acknowledge from the CPU. Without specifying the
> interrupt type in Devicetree, kernel might apply some fixed
> configuration, not necessarily working for this hardware.
>
> Fixes: b004a34bd0ff ("ARM: dts: exynos: Add exynos3250-artik5 dtsi file for
> ARTIK5 module")
> Signed-off-by: Krzysztof Kozlowski <[email protected]>
> ---
> arch/arm/boot/dts/exynos3250-artik5.dtsi | 2 +-
Tested-by: Marek Szyprowski <[email protected]>
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi
> b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> index 04290ec4583a..829c05b2c405 100644
> --- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
> +++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> @@ -79,7 +79,7 @@ &i2c_0 {
> pmic@66 {
> compatible = "samsung,s2mps14-pmic";
> interrupt-parent = <&gpx3>;
> - interrupts = <5 IRQ_TYPE_NONE>;
> + interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
> pinctrl-names = "default";
> pinctrl-0 = <&s2mps14_irq>;
> reg = <0x66>;
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
