linux-kernel - [PATCH v2 3/4] arm64: dts: imx8mn: correct interrupt flags

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Date:   Thu, 17 Sep 2020 20:54:48 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Adam Ford <aford173@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Anson Huang <Anson.Huang@....com>,
        Jacky Bai <ping.bai@....com>, Robin Gong <yibin.gong@....com>,
        Peter Chen <peter.chen@....com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Tim Harvey <tharvey@...eworks.com>
Subject: [PATCH v2 3/4] arm64: dts: imx8mn: correct interrupt flags

GPIO_ACTIVE_x flags are not correct in the context of interrupt flags.
These are simple defines so they could be used in DTS but they will not
have the same meaning:
1. GPIO_ACTIVE_HIGH = 0 = IRQ_TYPE_NONE
2. GPIO_ACTIVE_LOW  = 1 = IRQ_TYPE_EDGE_RISING

Correct the interrupt flags, assuming the author of the code wanted same
logical behavior behind the name "ACTIVE_xxx", this is:
  ACTIVE_LOW  => IRQ_TYPE_LEVEL_LOW

For level low interrupts, enable also internal pull up.  It is
required at least on imx8mm-evk, according to schematics.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

---

Not tested on HW.

Changes since v1:
1. Correct title.
2. Enable pull ups.
---
 arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 4 ++--
 arch/arm64/boot/dts/freescale/imx8mn-evk.dts      | 3 ++-
 arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi     | 2 +-
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
index 8f7155716c84..b0e8cb256a78 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
@@ -55,7 +55,7 @@
 		reg = <0x4b>;
 		pinctrl-0 = <&pinctrl_pmic>;
 		interrupt-parent = <&gpio1>;
-		interrupts = <3 GPIO_ACTIVE_LOW>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 		rohm,reset-snvs-powered;
 
 		regulators {
@@ -157,7 +157,7 @@
 &iomuxc {
 	pinctrl_pmic: pmicirqgrp {
 		fsl,pins = <
-			MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x41
+			MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x141
 		>;
 	};
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
index b846526a8d8b..707d8486b4d8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dts
@@ -7,6 +7,7 @@
 
 #include "imx8mn.dtsi"
 #include "imx8mn-evk.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
 	model = "NXP i.MX8MNano EVK board";
@@ -19,7 +20,7 @@
 		reg = <0x25>;
 		pinctrl-0 = <&pinctrl_pmic>;
 		interrupt-parent = <&gpio1>;
-		interrupts = <3 GPIO_ACTIVE_LOW>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 
 		regulators {
 			buck1: BUCK1{
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
index 7f4b904e9982..4aa0dbd578df 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
@@ -225,7 +225,7 @@
 
 	pinctrl_pmic: pmicirqgrp {
 		fsl,pins = <
-			MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x41
+			MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x141
 		>;
 	};
 
-- 
2.17.1