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Sat, 28 Feb 2026 06:38:30 +0000 From: Nick Xie To: neil.armstrong@linaro.org, khilman@baylibre.com, martin.blumenstingl@googlemail.com, jbrunet@baylibre.com, krzk+dt@kernel.org Cc: 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, Nick Xie Subject: [PATCH v2 3/4] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add PWM LED support Date: Sat, 28 Feb 2026 14:37:49 +0800 Message-Id: <20260228063750.701887-4-nick@khadas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260228063750.701887-1-nick@khadas.com> References: <20260228063750.701887-1-nick@khadas.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: TYCP286CA0001.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:26c::7) To PS1PPF62EEA9B1D.apcprd03.prod.outlook.com (2603:1096:308::2da) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PS1PPF62EEA9B1D:EE_|SI4PR03MB9867:EE_ X-MS-Office365-Filtering-Correlation-Id: d34f0e7a-5838-4f29-dfc3-08de7693fc99 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|52116014|366016|1800799024|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 The Khadas VIM1S board features a white LED connected to the PWM_G controller (PWM channel 0). Enable the PWM_G controller and add the pwm-leds node to support using this LED as a heartbeat indicator. Signed-off-by: Nick Xie Reviewed-by: Martin Blumenstingl --- .../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 d36533f5559a8..0bd738c1e7862 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 @@ -6,6 +6,7 @@ /dts-v1/; #include "meson-s4.dtsi" +#include / { model = "Khadas VIM1S"; @@ -43,6 +44,18 @@ emmc_pwrseq: emmc-pwrseq { reset-gpios = <&gpio GPIOB_9 GPIO_ACTIVE_LOW>; }; + pwm-leds { + compatible = "pwm-leds"; + + led-1 { + color = ; + function = LED_FUNCTION_STATUS; + linux,default-trigger = "heartbeat"; + max-brightness = <255>; + pwms = <&pwm_gh 0 30040 0>; + }; + }; + sdio_32k: sdio-32k { compatible = "pwm-clock"; #clock-cells = <0>; @@ -196,6 +209,12 @@ &pwm_ef { pinctrl-names = "default"; }; +&pwm_gh { + status = "okay"; + pinctrl-0 = <&pwm_g_pins1>; + pinctrl-names = "default"; +}; + &pwm_ij { status = "okay"; }; -- 2.34.1