ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen

BugLink: https://bugs.launchpad.net/bugs/1836802
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@samsung.com>
Fixes: 17419726aaa1 ("ARM: dts: add max8997 device node for exynos4210-origen board")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index 084fcc5574ef97b329b49f242780e10ca55f5507..e4876186d5cdea729df0cbae2daf1020fb29078c 100644 (file)
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -152,6 +152,8 @@
                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>;
@@ -289,6 +291,13 @@
        };
 };
 
+&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>;