[PATCH 4.18 041/350] ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen

[Greg Kroah-Hartman]

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>

commit f5e758b8358f6c27e8a351ddf0b441a64cdabb94 upstream.

PMIC_IRQB and PMIC_KEYINB lines on Exynos4210-based Origen board have
external pull-up resistors, so disable any pull control for those lines
in respective pin controller node. This fixes support for MAX8997
interrupts and enables operation of wakeup from MAX8997 RTC alarm.

Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Fixes: 17419726aaa1 ("ARM: dts: add max8997 device node for exynos4210-origen board")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/boot/dts/exynos4210-origen.dts |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -151,6 +151,8 @@
 		reg = <0x66>;
 		interrupt-parent = <&gpx0>;
 		interrupts = <4 IRQ_TYPE_NONE>, <3 IRQ_TYPE_NONE>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&max8997_irq>;
 
 		max8997,pmic-buck1-dvs-voltage = <1350000>;
 		max8997,pmic-buck2-dvs-voltage = <1100000>;
@@ -288,6 +290,13 @@
 	};
 };
 
+&pinctrl_1 {
+	max8997_irq: max8997-irq {
+		samsung,pins = "gpx0-3", "gpx0-4";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+};
+
 &sdhci_0 {
 	bus-width = <4>;
 	pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_cd>;