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Sat, 28 Feb 2026 06:58:53 +0000 From: Nick Xie To: neil.armstrong@linaro.org, khilman@baylibre.com, martin.blumenstingl@googlemail.com, jbrunet@baylibre.com, krzk+dt@kernel.org, jic23@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org Cc: linux-iio@vger.kernel.org, robh@kernel.org, conor+dt@kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, xieqinick@gmail.com, Nick Xie Subject: [PATCH v1 0/4] iio: adc: meson-saradc: add support for Meson S4 Date: Sat, 28 Feb 2026 14:58:36 +0800 Message-Id: <20260228065840.702651-1-nick@khadas.com> X-Mailer: git-send-email 2.34.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: TY4PR01CA0055.jpnprd01.prod.outlook.com (2603:1096:405:372::11) To PS1PPF62EEA9B1D.apcprd03.prod.outlook.com (2603:1096:308::2da) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PS1PPF62EEA9B1D:EE_|SEYPR03MB6722:EE_ X-MS-Office365-Filtering-Correlation-Id: 463e4fe8-6dfd-4166-b09b-08de7696d55f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|52116014|376014|366016|38350700014; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series adds support for the SARADC IP block found in the Amlogic Meson S4 (S905Y4) SoC and enables it for the Khadas VIM1S board to support the onboard ADC 'Function' key. Following discussions in a previous board-enablement thread [1], a dedicated compatible string ("amlogic,meson-s4-saradc") is introduced. While the hardware currently operates perfectly using the G12A parameter set, defining an S4-specific string ensures forward compatibility should any S4-specific quirks or BL30 integration differences be discovered in the future. [1] https://lore.kernel.org/linux-amlogic/20260123022258.136448-1-nick@khadas.com/ Nick Xie (4): dt-bindings: iio: adc: amlogic,meson-saradc: add S4 compatible iio: adc: meson-saradc: add support for Meson S4 arm64: dts: amlogic: meson-s4: add internal SARADC controller arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add Function key support .../iio/adc/amlogic,meson-saradc.yaml | 1 + .../amlogic/meson-s4-s905y4-khadas-vim1s.dts | 19 +++++++++++++++++++ arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 14 ++++++++++++++ drivers/iio/adc/meson_saradc.c | 8 ++++++++ 4 files changed, 42 insertions(+) -- 2.34.1