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Commit 1cea2c22 authored by Baolin Wang's avatar Baolin Wang Committed by Olof Johansson
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arm64: dts: sprd: Add GPIO and GPIO keys device nodes 



This patch adds device nodes to enable one GPIO controller located on
digital chip, 2 EIC (external interrupt controller) controllers loacted
on PMIC and digital chip for Spreadtrum SC9860 platform.

Moreover this patch adds 3 GPIO keys relied on EIC controller to support
power key and volume up/down keys.

Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent 4b9743e8

arch/arm64/boot/dts/sprd/sc2731.dtsi

+11 −0
Original line number Diff line number Diff line
@@ -24,6 +24,17 @@ 
			interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;

		};



		pmic_eic: gpio@300 {

			compatible = "sprd,sc27xx-eic";

			reg = <0x300>;

			interrupt-parent = <&sc2731_pmic>;

			interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;

			gpio-controller;

			#gpio-cells = <2>;

			interrupt-controller;

			#interrupt-cells = <2>;

		};



		regulators {

			compatible = "sprd,sc27xx-regulator";

arch/arm64/boot/dts/sprd/sc9860.dtsi

+30 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ 
 */



#include <dt-bindings/interrupt-controller/arm-gic.h>

#include <dt-bindings/input/input.h>

#include <dt-bindings/gpio/gpio.h>

#include "whale2.dtsi"



/ {
@@ -679,5 +681,33 @@ 
				};

			};

		};



		gpio-keys {

			compatible = "gpio-keys";



			key-volumedown {

				label = "Volume Down Key";

				linux,code = <KEY_VOLUMEDOWN>;

				gpios = <&eic_debounce 2 GPIO_ACTIVE_LOW>;

				debounce-interval = <2>;

				wakeup-source;

			};



			key-volumeup {

				label = "Volume Up Key";

				linux,code = <KEY_VOLUMEUP>;

				gpios = <&pmic_eic 10 GPIO_ACTIVE_HIGH>;

				debounce-interval = <2>;

				wakeup-source;

			};



			key-power {

				label = "Power Key";

				linux,code = <KEY_POWER>;

				gpios = <&pmic_eic 1 GPIO_ACTIVE_HIGH>;

				debounce-interval = <2>;

				wakeup-source;

			};

		};

	};

};

arch/arm64/boot/dts/sprd/whale2.dtsi

+50 −0
Original line number Diff line number Diff line
@@ -154,6 +154,56 @@ 
				clocks = <&aon_gate CLK_SPLK_EB>;

			};



			eic_debounce: gpio@40210000 {

				compatible = "sprd,sc9860-eic-debounce";

				reg = <0 0x40210000 0 0x80>;

				gpio-controller;

				#gpio-cells = <2>;

				interrupt-controller;

				#interrupt-cells = <2>;

				interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;

			};



			eic_latch: gpio@40210080 {

				compatible = "sprd,sc9860-eic-latch";

				reg = <0 0x40210080 0 0x20>;

				gpio-controller;

				#gpio-cells = <2>;

				interrupt-controller;

				#interrupt-cells = <2>;

				interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;

			};



			eic_async: gpio@402100a0 {

				compatible = "sprd,sc9860-eic-async";

				reg = <0 0x402100a0 0 0x20>;

				gpio-controller;

				#gpio-cells = <2>;

				interrupt-controller;

				#interrupt-cells = <2>;

				interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;

			};



			eic_sync: gpio@402100c0 {

				compatible = "sprd,sc9860-eic-sync";

				reg = <0 0x402100c0 0 0x20>;

				gpio-controller;

				#gpio-cells = <2>;

				interrupt-controller;

				#interrupt-cells = <2>;

				interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;

			};



			ap_gpio: gpio@40280000 {

				compatible = "sprd,sc9860-gpio";

				reg = <0 0x40280000 0 0x1000>;

				gpio-controller;

				#gpio-cells = <2>;

				interrupt-controller;

				#interrupt-cells = <2>;

				interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;

			};



			pin_controller: pinctrl@402a0000 {

				compatible = "sprd,sc9860-pinctrl";

				reg = <0 0x402a0000 0 0x10000>;