Thread (20 messages) 20 messages, 2 authors, 2020-12-29

Re: [PATCH 3/9] ARM: dts: exynos: correct PMIC interrupt trigger level on Rinato

From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: 2020-12-11 16:50:10
Also in: linux-devicetree, linux-samsung-soc, lkml

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: faaf348ef468 ("ARM: dts: Add board dts file for exynos3250-rinato")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
  arch/arm/boot/dts/exynos3250-rinato.dts | 2 +-
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
quoted hunk ↗ jump to hunk
  1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index a26e3e582a7e..d64ccf4b7d32 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -270,7 +270,7 @@ &i2c_0 {
  	pmic@66 {
  		compatible = "samsung,s2mps14-pmic";
  		interrupt-parent = <&gpx0>;
-		interrupts = <7 IRQ_TYPE_NONE>;
+		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
  		reg = <0x66>;
  		wakeup-source;
  
Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland


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