Re: [PATCH 7/9] arm64: dts: exynos: correct PMIC interrupt trigger level on TM2
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: 2020-12-18 12:48:03
Also in:
linux-arm-kernel, linux-samsung-soc, lkml
On 10.12.2020 22:29, 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: 01e5d2352152 ("arm64: dts: exynos: Add dts file for Exynos5433-based TM2 board")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
quoted hunk ↗ jump to hunk
--- arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi index 03486a8ffc67..4c5106a0860d 100644 --- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi@@ -388,7 +388,7 @@ &hsi2c_0 { pmic@66 { compatible = "samsung,s2mps13-pmic"; interrupt-parent = <&gpa0>; - interrupts = <7 IRQ_TYPE_NONE>; + interrupts = <7 IRQ_TYPE_LEVEL_LOW>; reg = <0x66>; samsung,s2mps11-wrstbi-ground;
Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland