From nobody Fri Apr 3 03:01:58 2026 Received: from courrier.aliel.fr (pouet.aliel.fr [65.21.61.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B176439C63D; Wed, 25 Mar 2026 09:18:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.21.61.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774430335; cv=none; b=qflo49GtNm3I0Y5pjeai2jdlLlksW8/wJ4ePV70UYjgVmd1j0GAvTXBxl7xLDH/WbxqT6aL2D5kgMElAvvw3Yayzg405CifwuvJCRDYKOggXtpAIgtXzwhVumHNiyzCzfi20qjsTM+f3ZUdlBqBz8KAiGhrJfQvEbcK+6ECJyes= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774430335; c=relaxed/simple; bh=OHhaocqrcyvsfcC4nwRCQzXz7HSpal5P8Pl4jRGYs5Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=R+zVp/9+uUXYNrm/QYG/IODLugPGiRsslSvpJgiJqqNn2PYZ7gjwjkJ8b8YDXX2E69plkXM5ZnO9YtX7mbYKmi7H4mquDEcx1wCeX5tmGexol35+5fGW6nS1BKit9b+8gXmHj26QzckTgAlvbQQ+8tlfdCqJih38k+AwEo39Pzo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aliel.fr; spf=pass smtp.mailfrom=aliel.fr; dkim=pass (1024-bit key) header.d=aliel.fr header.i=@aliel.fr header.b=su0w4Gzc; arc=none smtp.client-ip=65.21.61.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aliel.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aliel.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=aliel.fr header.i=@aliel.fr header.b="su0w4Gzc" From: Ronald Claveau DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=aliel.fr; s=courrier-s1; t=1774430332; bh=OHhaocqrcyvsfcC4nwRCQzXz7HSpal5P8Pl4jRGYs5Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=su0w4GzcLxDEdFnHGE154pI2wvkr/6d5nip5OZVW7aj5WJTKkEJjCtnygqw6nuanr /GKHh4iX7oEYrqXZIbOb5D4YVET0v+6XhjYJAH+4ycAcUydbkmpmLjV5hKNNhaRM2m CBU18qoZuVWjYLO3kgzDhsLiFpNoYB6iBYx97VGM= Date: Wed, 25 Mar 2026 10:15:25 +0100 Subject: [PATCH v4 7/9] arm64: dts: amlogic: t7: khadas-vim4: Add SDIO power sequence and WiFi clock Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260325-add-emmc-t7-vim4-v4-7-44c7b4a5e459@aliel.fr> References: <20260325-add-emmc-t7-vim4-v4-0-44c7b4a5e459@aliel.fr> In-Reply-To: <20260325-add-emmc-t7-vim4-v4-0-44c7b4a5e459@aliel.fr> To: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ulf Hansson , Johannes Berg , van Spriel Cc: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-wireless@vger.kernel.org, Ronald Claveau X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openssh-sha256; t=1774430324; l=1444; i=linux-kernel-dev@aliel.fr; s=id_ed25519; h=from:subject:message-id; bh=OHhaocqrcyvsfcC4nwRCQzXz7HSpal5P8Pl4jRGYs5Q=; b=U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgMGec55oxeeisqykQiUedekMYyOnR9 BG9E/7rDWyqdNoAAAAGcGF0YXR0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5AAAA QEPoczoR+ZG1RJsyzEqjW47THhKI/fMaQohteOEaQPnKesTfwxSOE5RTjg9fzUCj9eJVHmfl1W5 BpjfvYpK+cww= X-Developer-Key: i=linux-kernel-dev@aliel.fr; a=openssh; fpr=SHA256:kch4osYZ6A1BrPps5AUs6KnfdE2wm4ocMtyTc8TmZMs Add the SDIO power sequence node using mmc-pwrseq-simple and a 32.768kHz PWM-based clock required by the Wi-Fi module. Signed-off-by: Ronald Claveau Reviewed-by: Neil Armstrong --- .../dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts | 22 ++++++++++++++++++= ++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts = b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts index 2450084d37642..770f06b0b16c7 100644 --- a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts @@ -67,6 +67,15 @@ sd_3v3: regulator-sdcard-3v3 { regulator-always-on; }; =20 + sdio_pwrseq: sdio-pwrseq { + compatible =3D "mmc-pwrseq-simple"; + reset-gpios =3D <&gpio GPIOX_6 GPIO_ACTIVE_LOW>; + post-power-on-delay-ms =3D <500>; + power-off-delay-us =3D <200000>; + clocks =3D <&wifi32k>; + clock-names =3D "ext_clock"; + }; + vcc5v: regulator-vcc-5v { compatible =3D "regulator-fixed"; regulator-name =3D "VCC5V"; @@ -135,6 +144,19 @@ vddio_c: regulator-gpio-c { states =3D <1800000 1 3300000 0>; }; + + wifi32k: wifi32k { + compatible =3D "pwm-clock"; + #clock-cells =3D <0>; + clock-frequency =3D <32768>; + pwms =3D <&pwm_ab 0 30518 0>; + }; +}; + +&pwm_ab { + status =3D "okay"; + pinctrl-0 =3D <&pwm_a_pins>; + pinctrl-names =3D "default"; }; =20 &uart_a { --=20 2.49.0