linux-kernel - [PATCH v3 3/6] arm64: dts: meson-g12a-sei510: Add ADC Key and BT support

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Message-Id: <20190325101453.3009-4-narmstrong@baylibre.com>
Date:   Mon, 25 Mar 2019 11:14:50 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v3 3/6] arm64: dts: meson-g12a-sei510: Add ADC Key and BT support

Add support for the :
- ADC Touch key
- Bluetooth Module on UART A

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 .../boot/dts/amlogic/meson-g12a-sei510.dts    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
index 43d57e20294a..ebdad5a192f1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
@@ -7,6 +7,7 @@
 
 #include "meson-g12a.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/meson-g12a-gpio.h>
 
 / {
@@ -17,6 +18,19 @@
 		serial0 = &uart_AO;
 	};
 
+	adc_keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+
+		button-onoff {
+			label = "On/Off";
+			linux,code = <KEY_POWER>;
+			press-threshold-microvolt = <1700000>;
+		};
+	};
+
 	ao_5v: regulator-ao_5v {
 		compatible = "regulator-fixed";
 		regulator-name = "AO_5V";
@@ -87,7 +101,23 @@
 		vin-supply = <&vddao_3v3>;
 		regulator-always-on;
 	};
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vddio_ao1v8>;
+};
+
+&uart_A {
+	status = "okay";
+	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+	pinctrl-names = "default";
+	uart-has-rtscts;
 
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &uart_AO {
-- 
2.21.0