From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f193.google.com (mail-pl1-f193.google.com [209.85.214.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 968A63016FF for ; Mon, 3 Nov 2025 11:07:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.193 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762168024; cv=none; b=HAL865/LJrLCDYnFCwLaRn+luv58jDYJlaxKyTVbt4FImeFhDmiBCN0DpoWmyKOocJOx6uTaH3l4mzVaioGCyhfYQiy6+FEkFuDSzMz5gjnLWNTQEu9RDOVg+WfvUItEJ4z+eXYUqZrpEMkgz//B4F5P+zOprY0I7nWtC4n3+9k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762168024; c=relaxed/simple; bh=U2S1xSihT43zwJfSjpJYIZmqbEiWaSbNbBj+0gTTbSw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DVkPGpAnRjs2+EDA6ywW3689LuL5Ecn1shYNAFYquMHJtep3KCG0hXPxlZRugj8loRG/3CIUmfI9aLYyP+dZpcRCmSz93qWYwt4Zeo2X85wC6q0+QcJv+Ds4y8JMUM1s/mPmvfye9dEldijdnNgocOwXlUWRYpoOcUzWif80Xh0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=PSaL5qiU; arc=none smtp.client-ip=209.85.214.193 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PSaL5qiU" Received: by mail-pl1-f193.google.com with SMTP id d9443c01a7336-29558061c68so16691335ad.0 for ; Mon, 03 Nov 2025 03:07:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1762168022; x=1762772822; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Vwqxs3pFPgUNdzREwICsv/UCTbRI0baMAHgNVcVWKho=; b=PSaL5qiUcpMiwwN6Z+iZaZe5A3Ze+E9ajOL6GFzvw1com9pJfxR6HTTLSftCHpFMY4 hlf12EjNXCbBxGYGEYRy1I/qImxGXYIF6tSqYais1oO5gBcSPth9o0ej8utTHGWk6Kco jk+V6cg5GBOAAfHWdARx+iiJOB+bFrqmNUEA1qiE0LTGN3NWOO60BMTwsmTK4LBulSdP DTPtLh4pmBkx+Emd3TaMw7QjNY0WMepAJwDhyoT4N+HGb7cXVKfdesYsQ1JuO1Ac5+hj uCLvX3wOdB/7dMEN1yyA+yS4G9Lx/CVSDJWMETEGSLw3/PSZI7WekJyJuZ1bOU/fOjjW E2wA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762168022; x=1762772822; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Vwqxs3pFPgUNdzREwICsv/UCTbRI0baMAHgNVcVWKho=; b=Oqg15LLbr0DR7p6g+m9fOhc5K1mPK2ro4xyIOFmT6UaVdTbx2T2YHFCd32JELSUC+A lJ+RaPTrbZDEcPZ12yIDHcTyp7VtOZWfRjTaPGy54pGYYPAVbiC0I993WHCan2QNNlAU FVvxvh1Fg5OORr4IFve3Sn0qGhaq2KU4B7YWwmnOoz7YmApc03wxTtROvukQIsYYJC6P 9YAXGsMS2z4v18W6VFVgQECc91pcBt6CFET5LZcTkhUl9bzOMXKqYuzDNKBC+BmoGxhd v3U/t5EN1mXt8K+7B9TMYxZCOlwsmAcTvXUT/pvm/DPozbaD3d21lyYD3439Y0sbHGL9 uYRQ== X-Forwarded-Encrypted: i=1; AJvYcCVLeoiQnEwn3LL7IkujXDXLlNG5eQdhHSoW5j/YdYnHskTcIPowWSEYyJaTTymWJgQU1iWByWo1lXth2w==@vger.kernel.org X-Gm-Message-State: AOJu0YxQ6lxtMrEofQIbbDQGuhSYcW4m6zM+HAM1Ci4VCd868iXLcGiO wK8X/GG98c9ZArPvkbNiFwYpx2Nco6ESjFYPrtkMzDVTtPMlg+UHxAfF8zGyGD34dkN5mQ== X-Gm-Gg: ASbGncs5ic5X8E5DGBveX2obU4/3eKDYJZ2NWQPzqbGgDUYXU33ndOrYviT3NERCJP6 5OQCiqF04FCNYMGGuynU6jyyQi4Vmb/vtymFJNlrZhpCCZu4AlHmY84yEoilnEek4abaDy0vKJd 6paWhaZ/bE2QEhqN+/4Sv3CI/x9N4mnPy7uSiJBKtFNrJjntCbP4QsYUP/7O3DwZn0qLpR/fQzl Q2AiypWMLz4K5AA2Le0QZrdIYIgLNqHPVxSc1IrU1hywbm4J9oY1L+LPw8xG82PPEt5jFzxNsfR Q9htYVksAdmME3D8m25d7XEkh5Jkln/yBin/6L5mymCBn9Ug49wvGc0F/5oO0udQ+VOFAFaYsm6 dAUbgwnWL7TVPNSYFpYvGZcKA+CSwLJPsqjVuoKqyhAjRgofGaM1XKXc1axnLELlO7nAYRWtWOl ll/KRCoke5rO/P9ETnng== X-Google-Smtp-Source: AGHT+IED1NK8Nun74yVDxcwX2L2vPElvPQSyImAaJGU2myF3ZiOioVg5mqtofEuE0gFzFHfeDCXjwQ== X-Received: by 2002:a17:902:f682:b0:295:8db9:305f with SMTP id d9443c01a7336-2958db93392mr64853685ad.34.1762168021882; Mon, 03 Nov 2025 03:07:01 -0800 (PST) Received: from VM-0-14-ubuntu.. ([43.134.26.72]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2955615d720sm84025575ad.65.2025.11.03.03.06.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Nov 2025 03:07:01 -0800 (PST) From: Junjie Cao To: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller Cc: dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, Pengyu Luo , Junjie Cao Subject: [PATCH v2 1/2] dt-bindings: leds: backlight: Add Awinic AW99706 backlight Date: Mon, 3 Nov 2025 19:06:47 +0800 Message-ID: <20251103110648.878325-2-caojunjie650@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251103110648.878325-1-caojunjie650@gmail.com> References: <20251103110648.878325-1-caojunjie650@gmail.com> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Pengyu Luo Add Awinic AW99706 backlight binding documentation. Signed-off-by: Junjie Cao --- Changes in v2: - use proper units for properties (Krzysztof) - drop non-fixed properties (Krzysztof) - add properties(max-brightness, default-brightness) (Krzysztof) - Link to v1: https://lore.kernel.org/linux-leds/20251026123923.1531727-2-caojunjie650@gmail.com .../leds/backlight/awinic,aw99706.yaml | 100 ++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/awinic,aw99706.yaml diff --git a/Documentation/devicetree/bindings/leds/backlight/awinic,aw99706.yaml b/Documentation/devicetree/bindings/leds/backlight/awinic,aw99706.yaml new file mode 100644 index 000000000..9b7266e61 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/awinic,aw99706.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/awinic,aw99706.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Awinic AW99706 6-channel WLED Backlight Driver + +maintainers: + - Junjie Cao + +allOf: + - $ref: common.yaml# + +properties: + compatible: + const: awinic,aw99706 + + reg: + maxItems: 1 + + enable-gpios: + description: GPIO to use to enable/disable the backlight (HWEN pin). + maxItems: 1 + + awinic,dim-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Select dimming mode of the device. + 0 = Bypass mode. + 1 = DC mode. + 2 = MIX mode(PWM at low brightness and DC at high brightness). + 3 = MIX-26k mode(MIX mode with different PWM frequency). + enum: [ 0, 1, 2, 3 ] + default: 1 + + awinic,sw-freq-hz: + description: Boost switching frequency in Hz. + enum: [ 300000, 400000, 500000, 600000, 660000, 750000, 850000, 1000000, 1200000, 1330000, 1500000, 1700000 ] + default: 750000 + + awinic,sw-ilmt-microamp: + description: Switching current limitation in uA. + enum: [ 1500000, 2000000, 2500000, 3000000 ] + default: 3000000 + + awinic,iled-max-microamp: + description: Maximum LED current setting in uA. + minimum: 5000 + maximum: 50000 + multipleOf: 500 + default: 20000 + + awinic,uvlo-thres-microvolt: + description: UVLO(Under Voltage Lock Out) in uV. + enum: [ 2200000, 5000000 ] + default: 2200000 + + awinic,ramp-ctl: + $ref: /schemas/types.yaml#/definitions/uint32 + description: > + Select ramp control and filter of the device. + 0 = Fade in/fade out. + 1 = Light filter. + 2 = Medium filter. + 3 = Heavy filter. + enum: [ 0, 1, 2, 3 ] + default: 2 + +required: + - compatible + - reg + - enable-gpios + +unevaluatedProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + aw99706@76 { + compatible = "awinic,aw99706"; + reg = <0x76>; + enable-gpios = <&tlmm 88 GPIO_ACTIVE_HIGH>; + default-brightness = <2047>; + max-brightness = <4095>; + awinic,dim-mode = <1>; + awinic,sw-freq-hz = <750000>; + awinic,sw-ilmt-microamp = <3000000>; + awinic,uvlo-thres-microvolt = <2200000>; + awinic,iled-max-microamp = <20000>; + awinic,ramp-ctl = <2>; + }; + }; + +... -- 2.51.1.dirty