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
ACTIVE_HIGH => IRQ_TYPE_LEVEL_HIGH
In case of level low interrupts, enable also internal pull up. It is
required at least on imx8mm-evk, according to schematics.
The schematics for Variscite imx8mm-var-som are not available and
I was unable to get proper configuration from Variscite.
Signed-off-by: Krzysztof Kozlowski <k...@kernel.org>
---
Changes since v1:
1. Correct title.
2. Enable pull ups.
---
arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi | 4 ++--
arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 4 ++--
arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts | 2 +-
arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi | 6 +++++-
4 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
index 502faf6144b0..6de86a4f0ec4 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi
@@ -74,7 +74,7 @@
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 {
@@ -292,7 +292,7 @@
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
- MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3
0x41
+ MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x141
>;
};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index f572b7d207f4..f305a530ff6f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -123,7 +123,7 @@
reg = <0x4b>;
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
- interrupts = <3 GPIO_ACTIVE_LOW>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
rohm,reset-snvs-powered;
#clock-cells = <0>;
@@ -392,7 +392,7 @@
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
- MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x41
+ MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x141
>;
};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
index 67ceda14d648..a56f602ba0a3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
@@ -134,7 +134,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_captouch>;
interrupt-parent = <&gpio5>;
- interrupts = <4 GPIO_ACTIVE_HIGH>;
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
touchscreen-size-x = <800>;
touchscreen-size-y = <480>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index 9c6e91243ba0..4107fe914d08 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -137,7 +137,11 @@
reg = <0x4b>;
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio2>;
- interrupts = <8 GPIO_ACTIVE_LOW>;
+ /*
+ * The interrupt is not correct. It should be level low,
+ * however with internal pull up this causes IRQ storm.
+ */
+ interrupts = <8 IRQ_TYPE_EDGE_RISING>;
rohm,reset-snvs-powered;
#clock-cells = <0>;
--
2.17.1
