The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From f5e758b8358f6c27e8a351ddf0b441a64cdabb94 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski m.szyprowski@samsung.com Date: Wed, 5 Sep 2018 12:02:15 +0200 Subject: [PATCH] ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen
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
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts index 2ab99f9f3d0a..dd9ec05eb0f7 100644 --- 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>;