From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D40D8C004C9 for ; Tue, 7 May 2019 20:12:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A6E18208C4 for ; Tue, 7 May 2019 20:12:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="jCcHdaJi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727190AbfEGUMV (ORCPT ); Tue, 7 May 2019 16:12:21 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:41396 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727175AbfEGUMU (ORCPT ); Tue, 7 May 2019 16:12:20 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id x47KBstm103342; Tue, 7 May 2019 15:11:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1557259914; bh=DRVV299Ci0j5Cexq/cMMqdAHfnEZfgwA2Ei4XT3yojQ=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=jCcHdaJiK3MjW2FiK0JDtu07d9nFt93s/OMe+9158m9QT895X6WMxJ2a8JWIglS3u x2vADdrS34bpFGmUE4Sg6WhQvZKK/RM4XOG5ixcvlHVxrVrsVSfSX0gXpk/sSafsxn nzP3Ykov1/Bf6eRaHu4N21l2uLJeIE3a0+0bGE2w= Received: from DFLE115.ent.ti.com (dfle115.ent.ti.com [10.64.6.36]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x47KBslq104702 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 7 May 2019 15:11:54 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Tue, 7 May 2019 15:11:54 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Tue, 7 May 2019 15:11:54 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x47KBscb035474; Tue, 7 May 2019 15:11:54 -0500 From: Dan Murphy To: , CC: , , , , Dan Murphy , Rob Herring Subject: [PATCH v4 5/6] dt-bindings: leds: Add LED bindings for the LM36274 Date: Tue, 7 May 2019 15:11:58 -0500 Message-ID: <20190507201159.13940-6-dmurphy@ti.com> X-Mailer: git-send-email 2.21.0.5.gaeb582a983 In-Reply-To: <20190507201159.13940-1-dmurphy@ti.com> References: <20190507201159.13940-1-dmurphy@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the LM36274 LED specific bindings. Reviewed-by: Rob Herring Signed-off-by: Dan Murphy --- .../devicetree/bindings/leds/leds-lm36274.txt | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm36274.txt diff --git a/Documentation/devicetree/bindings/leds/leds-lm36274.txt b/Documentation/devicetree/bindings/leds/leds-lm36274.txt new file mode 100644 index 000000000000..329393700191 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lm36274.txt @@ -0,0 +1,82 @@ +* Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias + +The LM36274 is an integrated four-channel WLED driver and LCD bias supply. +The backlight boost provides the power to bias four parallel LED strings with +up to 29V total output voltage. The 11-bit LED current is programmable via +the I2C bus and/or controlled via a logic level PWM input from 60 μA to 30 mA. + +Parent device properties are documented in ../mfd/ti_lmu.txt +Regulator properties are documented in ../regulator/lm363x-regulator.txt + +Required backlight properties: + - compatible: + "ti,lm36274-backlight" + - reg : 0 + - #address-cells : 1 + - #size-cells : 0 + - led-sources : Indicates which LED strings will be enabled. + Values from 0-3, sources is 0 based so strings will be + source value + 1. + +Optional backlight properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +HVLED string 1 and 3 are controlled by control bank A and HVLED 2 string is +controlled by control bank B. + +lm36274@11 { + compatible = "ti,lm36274"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x11>; + + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lm363x-regulator"; + + enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>, + <&pioC 1 GPIO_ACTIVE_HIGH>; + + vboost { + regulator-name = "lcd_boost"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <7150000>; + regulator-always-on; + }; + + vpos { + regulator-name = "lcd_vpos"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <6500000>; + }; + + vneg { + regulator-name = "lcd_vneg"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <6500000>; + }; + }; + + backlight { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lm36274-backlight"; + + led@0 { + reg = <0>; + led-sources = <0 2>; + label = "white:backlight_cluster"; + linux,default-trigger = "backlight"; + }; + }; +}; + +For more product information please see the link below: +http://www.ti.com/lit/ds/symlink/lm36274.pdf -- 2.21.0.5.gaeb582a983