From nobody Mon Apr 6 21:11:53 2026 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (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 531D4366DC0; Wed, 18 Mar 2026 07:00:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773817252; cv=none; b=MRmpHM68JYX79Ny85qskgGRzekrEm7/rQOUsZFpgoBaeytm8B8pUzNWMlehcf/owiecSlvrxArG6o1VDpp6TP3BAmCsrMMXVy6v1tY8me46CTT5ZmCDBnWxZNJ+XZZeTIMXYH/DIohc1fq5LhHdYc61d4p0ln54aLYaGH9knB78= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773817252; c=relaxed/simple; bh=tMndzEFe1mwrpQ9gHW80y66RRIWqD5TMGX7tEvhlVzU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=Qvuvuj3tki4ItIUcXsnKSPd5t+qYMi1a3PE19SSvRjHthcXhKpLM+L+hof0DSSW9/z/DpCOpSfxDt7iOqtpxPpqYWcNHMJSAGtiZUj6YZkeBMDgzGMnxe7fwp47+CCvBvphprVEqWNxxhWe1GGD1U90V/L6r9GC7Y4DJQz8Rk7k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=rRBjQjSg; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="rRBjQjSg" Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62I5VJxc1782791; Wed, 18 Mar 2026 03:00:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=Aoie1 jVgx95WaIYi6KUNi0qif0PKy4gC1sf+LtAaweM=; b=rRBjQjSg8JfzkBb38gjOF N7egY/aQpz3h5s6/5NEbLdHgPZqCWZlHLbCpXmvJuKto4uGmwYC05eihw+mGFbpH eCfPbecZpqyJhY6iQxrfRH69SOaKW7IFXjyjDUfA2QVZg+uyREJkVGjlHno6vD16 zZxxrmT4X1MJ2t0EnNR9BHa09LhDQ6SOxEWW1HAHNw1yzAz9LLIK1u4umybOJPsa KzN57st9NZht8mCfZgl0/Fhy4dK/wYQSyiGYTcdGr2oi7Zy8nXO6MWbn2oT9Ai28 +hwtv1d/QlUO1GgX4RS1xboTWgsFzVhlSUk90/1k18g0d58o4sDflOJ8D1NJhE4A A== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 4cyjf81hxe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Mar 2026 03:00:45 -0400 (EDT) Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 62I70ieL010636 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 18 Mar 2026 03:00:44 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Wed, 18 Mar 2026 03:00:44 -0400 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Wed, 18 Mar 2026 03:00:44 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Wed, 18 Mar 2026 03:00:44 -0400 Received: from HYB-VFz9h4bIQxi.ad.analog.com (HYB-VFz9h4bIQxi.ad.analog.com [10.118.4.27]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 62I70PXJ031847; Wed, 18 Mar 2026 03:00:39 -0400 From: Jan Carlo Roleda Date: Wed, 18 Mar 2026 14:59:22 +0800 Subject: [PATCH 3/3] dt-bindings: leds: Document LTC3208 Multidisplay LED Driver 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: <20260318-upstream-ltc3208-v1-3-015f1f1e9065@analog.com> References: <20260318-upstream-ltc3208-v1-0-015f1f1e9065@analog.com> In-Reply-To: <20260318-upstream-ltc3208-v1-0-015f1f1e9065@analog.com> To: Lee Jones , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , Jan Carlo Roleda X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773817226; l=5269; i=jancarlo.roleda@analog.com; s=20260317; h=from:subject:message-id; bh=tMndzEFe1mwrpQ9gHW80y66RRIWqD5TMGX7tEvhlVzU=; b=EZQgTol4n/PHVVhq1fRWf7A9WRDLeawE/cOAsV3k6vSAJee2PkpxBLQTl+czu0XRISH+z3+6N 23bm+NpwajGACV9j8fae4mpqyRGX2GYWKfuOp/0oxO7hNDSjw75tp2A X-Developer-Key: i=jancarlo.roleda@analog.com; a=ed25519; pk=zPMh+eO6/Mj6tqaie75BLiTLQvE3f9pck0UejKLmLMc= X-ADIRuleOP-NewSCL: Rule Triggered X-Authority-Analysis: v=2.4 cv=Rcidyltv c=1 sm=1 tr=0 ts=69ba4d9d cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=Z0pTeXoby7EwIRygza74:22 a=gEfo2CItAAAA:8 a=gAnH3GRIAAAA:8 a=VwQbUJbxAAAA:8 a=DfgavVszv1SWYE2HNeIA:9 a=QEXdDO2ut3YA:10 a=sptkURWiP4Gy88Gu7hUp:22 X-Proofpoint-ORIG-GUID: Y-IR9Zq__zpN4c_pe-Xhf7cVPfS1-UNz X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE4MDA1NyBTYWx0ZWRfXyFnPUP21XMbW AWceKMe2MvJlTc3LRpdY9zfSXEhzGJ1YjWwMf21ueOSoZScPOCjHW58MW15KgH5RJro2D7REo9H jKejp/cJwtRyKCuI9M0buBjtl9w2TOtQ/mqxQkPnvO1cm/EosEXqWCD1g9YutAvUo31PfqOotob Z4Q3kr0rR11qVDtzio+tACNOZvpqJKJbzVxDBNwWx4fDEPionBfXX9W58mLUXMtjj/fKzq4T4IR xh16LRveKnGuK7MAw/arktyz+L9ZMeeHyQ65gqJiQeAqpEAIbuVWqXwRDoC2KNXvgpHo2hcz2sc aY18ts9HKHCsBqVXMGWXGrWJkyq4Vc2CelJBVmm0TiBAOjnH8A8aMLUDJxIxwLgGTb9jSs85HG+ W2q+CjqXNaw8lguBbxF3v6wKYUM8klVlbUY3kzrxWQ1dkD1hu4XDykEVzHfW3q9Qv3u4s9cQCHT rTCMtR9Ym8PRpgornbg== X-Proofpoint-GUID: Y-IR9Zq__zpN4c_pe-Xhf7cVPfS1-UNz X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-17_05,2026-03-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 adultscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603180057 Add Documentation for LTC3208 Multidisplay LED Driver. Signed-off-by: Jan Carlo Roleda --- .../devicetree/bindings/leds/adi,ltc3208.yaml | 159 +++++++++++++++++= ++++ MAINTAINERS | 1 + 2 files changed, 160 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/adi,ltc3208.yaml b/Docu= mentation/devicetree/bindings/leds/adi,ltc3208.yaml new file mode 100644 index 000000000000..58ee7a9cc66e --- /dev/null +++ b/Documentation/devicetree/bindings/leds/adi,ltc3208.yaml @@ -0,0 +1,159 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2026 Analog Devices, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-ltc3208.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LTC3208 Multidisplay LED Controller from Linear Technologies (Now A= nalog Devices). + +maintainers: + - Jan Carlo Roleda + +description: + The LTC3208 is a multidisplay LED controller that can support up to 1A t= o all + connected LEDs. + + The datasheet for this device can be found in + https://www.analog.com/en/products/ltc3208.html + + +properties: + compatible: + const: adi,ltc3208 + + reg: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + adi,disable-camhl-pin: + type: boolean + description: + Configures whether the external CAMHL pin is disabled. + if disabled then the output pins associated with CAM will always sel= ect + the CAM register's high half-byte brightness. + + adi,cfg-enrgbs-pin: + type: boolean + description: + Configures which channel the ENRGBS pin toggles when it receives a s= ignal. + ENRGBS pin controls the SUB channel's output pins if this is set, + or RGB channel's output pins if this is unset. + + adi,disable-rgb-aux4-dropout: + type: boolean + description: + Configures the RGB and AUX4 dropout signals to be disabled. + + adi,aux1-channel: + $ref: /schemas/types.yaml#/definitions/string + description: + LED Channel that the AUX1 output pin mirrors its brightness level fr= om. + enum: [aux, main, sub, cam] + default: aux + + adi,aux2-channel: + $ref: /schemas/types.yaml#/definitions/string + description: + LED Channel that the AUX2 output pin mirrors its brightness level fr= om. + enum: [aux, main, sub, cam] + default: aux + + adi,aux3-channel: + $ref: /schemas/types.yaml#/definitions/string + description: + LED Channel that the AUX3 output pin mirrors its brightness level fr= om. + enum: [aux, main, sub, cam] + default: aux + + adi,aux4-channel: + $ref: /schemas/types.yaml#/definitions/string + description: + LED Channel that the AUX4 output pin mirrors its brightness level fr= om. + enum: [aux, main, sub, cam] + default: aux + +patternProperties: + "^led@[0-7]$": + type: object + $ref: /schemas/leds/common.yaml# + unevaluatedProperties: false + properties: + reg: + description: + LED Channel Number. each channel maps to a specific channel grou= p used + to configure the brightness level of the output pins correspondi= ng to + the channel. + enum: + - 0 # Main Channel (8-bit brightness) + - 1 # Sub Channel (8-bit brightness) + - 2 # AUX Channel (4-bit brightness) + - 3 # Camera Channel, Low-side byte (4-bit brightness) + - 4 # Camera Channel, High-side byte (4-bit brightness) + - 5 # Red Channel (4-bit brightness) + - 6 # Blue Channel (4-bit brightness) + - 7 # Green Channel (4-bit brightness) + required: + - reg + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include + #include + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + led-controller@1b { + compatible =3D "adi,ltc3208"; + reg =3D <0x1b>; + #address-cells =3D <1>; + #size-cells =3D <0>; + adi,disable-camhl-pin; + adi,cfg-enrgbs-pin; + adi,disable-rgb-aux4-dropout; + + led@0 { + reg =3D <0>; + }; + + led@1 { + reg =3D <1>; + }; + + led@2 { + reg =3D <2>; + }; + + led@3 { + reg =3D <3>; + }; + + led@4 { + reg =3D <4>; + }; + + led@5 { + reg =3D <5>; + }; + + led@6 { + reg =3D <6>; + }; + + led@7 { + reg =3D <7>; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 48bae02057d5..97072e906928 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15131,6 +15131,7 @@ M: Jan Carlo Roleda L: linux-leds@vger.kernel.org S: Maintained W: https://ez.analog.com/linux-software-drivers +F: Documentation/devicetree/bindings/leds/adi,ltc3208.yaml F: drivers/leds/leds-ltc3208.c =20 LTC4282 HARDWARE MONITOR DRIVER --=20 2.43.0