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Fri, 23 Jan 2026 02:23:23 +0000 From: Nick Xie To: neil.armstrong@linaro.org, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org Cc: krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org, xieqinick@gmail.com, Nick Xie Subject: [PATCH 3/6] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: add PWM LED support Date: Fri, 23 Jan 2026 10:22:55 +0800 Message-Id: <20260123022258.136448-4-nick@khadas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260123022258.136448-1-nick@khadas.com> References: <20260123022258.136448-1-nick@khadas.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SI2P153CA0024.APCP153.PROD.OUTLOOK.COM (2603:1096:4:190::13) To PS1PPF62EEA9B1D.apcprd03.prod.outlook.com (2603:1096:308::2da) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PS1PPF62EEA9B1D:EE_|SI2PR03MB6590:EE_ X-MS-Office365-Filtering-Correlation-Id: 83ed5f50-a743-4705-589f-08de5a266203 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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charset="utf-8" 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 --- .../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 041291999bc8c..4bae6d46defb5 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/; =20 #include "meson-s4.dtsi" +#include =20 / { model =3D "Khadas VIM1S"; @@ -43,6 +44,18 @@ emmc_pwrseq: emmc-pwrseq { reset-gpios =3D <&gpio GPIOB_9 GPIO_ACTIVE_LOW>; }; =20 + pwm-leds { + compatible =3D "pwm-leds"; + + led-1 { + color =3D ; + function =3D LED_FUNCTION_STATUS; + linux,default-trigger =3D "heartbeat"; + max-brightness =3D <255>; + pwms =3D <&pwm_gh 0 30040 0>; + }; + }; + sdio_32k: sdio-32k { compatible =3D "pwm-clock"; #clock-cells =3D <0>; @@ -196,6 +209,12 @@ &pwm_ef { pinctrl-names =3D "default"; }; =20 +&pwm_gh { + status =3D "okay"; + pinctrl-0 =3D <&pwm_g_pins1>; + pinctrl-names =3D "default"; +}; + &pwm_ij { status =3D "okay"; }; --=20 2.34.1