2020-12-10 21:40:14

by Krzysztof Kozlowski

Subject: [PATCH 5/9] ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa

The Samsung PMIC 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: 1fed2252713e ("ARM: dts: fix pinctrl for s2mps11-irq on exynos5420-arndale-octa")
Signed-off-by: Krzysztof Kozlowski <[email protected]>
---
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index bf457d0c02eb..1aad4859c5f1 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -349,7 +349,7 @@ pmic@66 {
reg = <0x66>;

interrupt-parent = <&gpx3>;
- interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&s2mps11_irq>;

--
2.25.1

2020-12-11 18:18:44

by Marek Szyprowski

Subject: Re: [PATCH 5/9] ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa

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. The falling edge
> interrupt will mostly work but it's not correct.
>
> Fixes: 1fed2252713e ("ARM: dts: fix pinctrl for s2mps11-irq on exynos5420-arndale-octa")
> Signed-off-by: Krzysztof Kozlowski <[email protected]>
> ---
> arch/arm/boot/dts/exynos5420-arndale-octa.dts | 2 +-
Tested-by: Marek Szyprowski <[email protected]>
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> index bf457d0c02eb..1aad4859c5f1 100644
> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> @@ -349,7 +349,7 @@ pmic@66 {
> reg = <0x66>;
>
> interrupt-parent = <&gpx3>;
> - interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
> + interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
> pinctrl-names = "default";
> pinctrl-0 = <&s2mps11_irq>;
>

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland