arm64: dts: imx8mn-var-som: fix missing PMIC's interrupt line pull-up

The PMIC's interrupt is level low and should be pulled up.  The PMIC's
device node had pinctrl-0 property but it lacked pinctrl-names which
is required to apply the pin configuration.  The actual problem in DTS
was pointed out by Felix Radensky from Variscite.

Reported-by: Felix Radensky <felix.r@variscite.com>
Fixes: ade0176dd8a0 ("arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
index a2d0190..7f356ed 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
@@ -116,13 +116,10 @@
        pmic@4b {
                compatible = "rohm,bd71847";
                reg = <0x4b>;
+               pinctrl-names = "default";
                pinctrl-0 = <&pinctrl_pmic>;
                interrupt-parent = <&gpio2>;
-               /*
-                * 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>;
+               interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
                rohm,reset-snvs-powered;
 
                regulators {
@@ -388,7 +385,7 @@
 
        pinctrl_pmic: pmicirqgrp {
                fsl,pins = <
-                       MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8        0x101
+                       MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8        0x141
                >;
        };