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Tue, 23 Jun 2026 13:48:42 -0700 (PDT) From: Alexander Sverdlin To: linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Cc: Alexander Sverdlin , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Hans de Goede , Dmitry Torokhov , Andre Przywara , Jun Yan , Lukas Schmid , =?UTF-8?q?J=2E=20Neusch=C3=A4fer?= , Eric Biggers , Michal Simek , Luca Weiss , Sven Peter , Maxime Ripard , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v5 5/6] arm64: dts: allwinner: a100: Add LRADC node Date: Tue, 23 Jun 2026 22:48:17 +0200 Message-ID: <20260623204824.691832-6-alexander.sverdlin@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260623204824.691832-1-alexander.sverdlin@gmail.com> References: <20260623204824.691832-1-alexander.sverdlin@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit A100/A133 SoCs feature a Low Rate ADC (LRADC) for Key application. Specs: - Power supply voltage: 1.8 V - Reference voltage: 1.35 V - Interrupt support - Support Hold Key and General Key - Support normal, continue and single work mode - 6-bits resolution, sample rate up to 2 kHz - Voltage input range between 0 and 1.35 V Reviewed-by: Jernej Skrabec Signed-off-by: Alexander Sverdlin --- Changelog: v5: - reflowed "compatible" property of lradc node v4: - added allwinner,sun50i-a100-lradc compatible v3: - new patch arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi index b3fb1e0ee796..ba6020989ce9 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi @@ -466,6 +466,16 @@ ths: thermal-sensor@5070400 { #thermal-sensor-cells = <1>; }; + lradc: lradc@5070800 { + compatible = "allwinner,sun50i-a100-lradc", + "allwinner,sun50i-r329-lradc"; + reg = <0x05070800 0x400>; + interrupts = ; + clocks = <&ccu CLK_BUS_LRADC>; + resets = <&ccu RST_BUS_LRADC>; + status = "disabled"; + }; + usb_otg: usb@5100000 { compatible = "allwinner,sun50i-a100-musb", "allwinner,sun8i-a33-musb"; -- 2.54.0