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From: Nick Xie <nick@khadas.com>
To: neil.armstrong@linaro.org, khilman@baylibre.com,
	martin.blumenstingl@googlemail.com, jbrunet@baylibre.com,
	jic23@kernel.org, dlechner@baylibre.com, andy@kernel.org
Cc: krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org,
	linux-iio@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, Nick Xie <nick@khadas.com>
Subject: [PATCH v2 4/4] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add Function key support
Date: Mon, 23 Mar 2026 09:34:08 +0800	[thread overview]
Message-ID: <20260323013408.429701-5-nick@khadas.com> (raw)
In-Reply-To: <20260323013408.429701-1-nick@khadas.com>

Enable the SARADC controller and add the adc-keys node to support
the Function key found on the Khadas VIM1S board.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Nick Xie <nick@khadas.com>
---
 .../amlogic/meson-s4-s905y4-khadas-vim1s.dts  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
index 664d64a267f2d..792ab45c4c944 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
@@ -40,6 +40,20 @@ secmon_reserved: secmon@5000000 {
 		};
 	};
 
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1710000>;
+		poll-interval = <100>;
+
+		button-function {
+			label = "Function";
+			linux,code = <KEY_FN>;
+			press-threshold-microvolt = <10000>;
+		};
+	};
+
 	emmc_pwrseq: emmc-pwrseq {
 		compatible = "mmc-pwrseq-emmc";
 		reset-gpios = <&gpio GPIOB_9 GPIO_ACTIVE_LOW>;
@@ -278,6 +292,11 @@ brcmf: wifi@1 {
 	};
 };
 
+&saradc {
+	status = "okay";
+	vref-supply = <&vddio_ao1v8>;
+};
+
 &spicc0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.34.1


_______________________________________________
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linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

WARNING: multiple messages have this Message-ID (diff)
From: Nick Xie <nick@khadas.com>
To: neil.armstrong@linaro.org, khilman@baylibre.com,
	martin.blumenstingl@googlemail.com, jbrunet@baylibre.com,
	jic23@kernel.org, dlechner@baylibre.com, andy@kernel.org
Cc: krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org,
	linux-iio@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, Nick Xie <nick@khadas.com>
Subject: [PATCH v2 4/4] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add Function key support
Date: Mon, 23 Mar 2026 09:34:08 +0800	[thread overview]
Message-ID: <20260323013408.429701-5-nick@khadas.com> (raw)
In-Reply-To: <20260323013408.429701-1-nick@khadas.com>

Enable the SARADC controller and add the adc-keys node to support
the Function key found on the Khadas VIM1S board.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Nick Xie <nick@khadas.com>
---
 .../amlogic/meson-s4-s905y4-khadas-vim1s.dts  | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
index 664d64a267f2d..792ab45c4c944 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
@@ -40,6 +40,20 @@ secmon_reserved: secmon@5000000 {
 		};
 	};
 
+	adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1710000>;
+		poll-interval = <100>;
+
+		button-function {
+			label = "Function";
+			linux,code = <KEY_FN>;
+			press-threshold-microvolt = <10000>;
+		};
+	};
+
 	emmc_pwrseq: emmc-pwrseq {
 		compatible = "mmc-pwrseq-emmc";
 		reset-gpios = <&gpio GPIOB_9 GPIO_ACTIVE_LOW>;
@@ -278,6 +292,11 @@ brcmf: wifi@1 {
 	};
 };
 
+&saradc {
+	status = "okay";
+	vref-supply = <&vddio_ao1v8>;
+};
+
 &spicc0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.34.1



  parent reply	other threads:[~2026-03-23  1:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-23  1:34 [PATCH v2 0/4] iio: adc: meson-saradc: add support for Meson S4 Nick Xie
2026-03-23  1:34 ` Nick Xie
2026-03-23  1:34 ` [PATCH v2 1/4] dt-bindings: iio: adc: amlogic,meson-saradc: add S4 compatible Nick Xie
2026-03-23  1:34   ` Nick Xie
2026-03-23  7:53   ` Krzysztof Kozlowski
2026-03-23  7:53     ` Krzysztof Kozlowski
2026-03-23 21:39     ` Martin Blumenstingl
2026-03-23 21:39       ` Martin Blumenstingl
2026-03-23  1:34 ` [PATCH v2 2/4] iio: adc: meson-saradc: add support for Meson S4 Nick Xie
2026-03-23  1:34   ` Nick Xie
2026-03-23  7:54   ` Krzysztof Kozlowski
2026-03-23  7:54     ` Krzysztof Kozlowski
2026-03-23 20:05     ` Jonathan Cameron
2026-03-23 20:05       ` Jonathan Cameron
2026-03-24  7:07       ` Krzysztof Kozlowski
2026-03-24  7:07         ` Krzysztof Kozlowski
2026-03-24  9:06         ` Jonathan Cameron
2026-03-24  9:06           ` Jonathan Cameron
2026-03-23  1:34 ` [PATCH v2 3/4] arm64: dts: amlogic: meson-s4: add internal SARADC controller Nick Xie
2026-03-23  1:34   ` Nick Xie
2026-03-23  1:34 ` Nick Xie [this message]
2026-03-23  1:34   ` [PATCH v2 4/4] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add Function key support Nick Xie

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