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[209.132.180.67]) by mx.google.com with ESMTP id t16si29047226plm.65.2019.06.05.05.56.46; Wed, 05 Jun 2019 05:56:47 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=Pp9uk+YJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727913AbfFEM4p (ORCPT + 30 others); Wed, 5 Jun 2019 08:56:45 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:35936 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727642AbfFEM4l (ORCPT ); Wed, 5 Jun 2019 08:56:41 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x55Cubj8099180; Wed, 5 Jun 2019 07:56:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1559739397; bh=MW4TST/iMuLpCixIrt5ZyAqpd2KHqAWFnSQ6CUHkxQU=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Pp9uk+YJbWCOcqXQ6BF+5YHSKTqwsVrMBfdRV/pnAujBKAYiqEMVS/o6llTjh6ySJ in1yY1OsR2jBpaaUNfOHjNqgVU1+D9pkIN/dheLnFnLBmJMmxZaFIbxm6kRQ6W2Mq0 CkegS35JiCKzjYloLqokKYrMZoWAWILhca3jY5eQ= Received: from DLEE114.ent.ti.com (dlee114.ent.ti.com [157.170.170.25]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x55CubnS130529 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 5 Jun 2019 07:56:37 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 5 Jun 2019 07:56:37 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE115.ent.ti.com (157.170.170.26) 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; Wed, 5 Jun 2019 07:56:37 -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 x55CubGE087372; Wed, 5 Jun 2019 07:56:37 -0500 From: Dan Murphy To: , , , CC: , , , Dan Murphy , Rob Herring Subject: [PATCH v6 4/5] dt-bindings: leds: Add LED bindings for the LM36274 Date: Wed, 5 Jun 2019 07:56:33 -0500 Message-ID: <20190605125634.7042-5-dmurphy@ti.com> X-Mailer: git-send-email 2.21.0.5.gaeb582a983 In-Reply-To: <20190605125634.7042-1-dmurphy@ti.com> References: <20190605125634.7042-1-dmurphy@ti.com> MIME-Version: 1.0 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. Signed-off-by: Dan Murphy Reviewed-by: Rob Herring Signed-off-by: Jacek Anaszewski --- .../devicetree/bindings/leds/leds-lm36274.txt | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm36274.txt -- 2.21.0.5.gaeb582a983 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