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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,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 658B2C4321D for ; Wed, 15 Aug 2018 16:17:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 09A532083C for ; Wed, 15 Aug 2018 16:17:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="lo6vNOdM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 09A532083C Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729838AbeHOTKg (ORCPT ); Wed, 15 Aug 2018 15:10:36 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:59050 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729481AbeHOTKg (ORCPT ); Wed, 15 Aug 2018 15:10:36 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id w7FGHglT100562; Wed, 15 Aug 2018 11:17:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1534349862; bh=j5zoafnWusRg3U6dD9c0cVSBcqF3f/+Fd/vTUXPNSGE=; h=From:To:CC:Subject:Date; b=lo6vNOdMJ/jEIGbiXFJxgakxxBniYD17KFQe2zniQLYVB2qdXwTwnpMDqQD3hA9md i71miHqkP+ERjCxIIKtnpLoxNkxNvDP0ZnyqAu7T8bPyO6f1Tihc+P+JQhEuuZWCqu PzNvKBvrtS5K+RCzDmHS9bFaOuTxnyGIEC/ypw+k= Received: from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id w7FGHgv0002561; Wed, 15 Aug 2018 11:17:42 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Wed, 15 Aug 2018 11:17:41 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Wed, 15 Aug 2018 11:17:42 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w7FGHfKI001957; Wed, 15 Aug 2018 11:17:41 -0500 Received: from localhost (a0272616local-lt.dhcp.ti.com [172.22.176.241]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id w7FGHfx28909; Wed, 15 Aug 2018 11:17:41 -0500 (CDT) From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v3 1/2] dt-bindings: leds: Add bindings for lm3697 driver Date: Wed, 15 Aug 2018 11:17:33 -0500 Message-ID: <20180815161734.18159-1-dmurphy@ti.com> X-Mailer: git-send-email 2.12.2 MIME-Version: 1.0 Content-Type: text/plain 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 device tree bindings for the lm3697 LED driver for backlighting and display. Signed-off-by: Dan Murphy --- v3 - Updated subject with prefered title - https://lore.kernel.org/patchwork/patch/972337/ v2 - Fixed subject and patch commit message - https://lore.kernel.org/patchwork/patch/971326/ .../devicetree/bindings/leds/leds-lm3697.txt | 89 +++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3697.txt diff --git a/Documentation/devicetree/bindings/leds/leds-lm3697.txt b/Documentation/devicetree/bindings/leds/leds-lm3697.txt new file mode 100644 index 000000000000..34403a48a0ce --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt @@ -0,0 +1,89 @@ +* Texas Instruments - LM3697 Highly Efficient White LED Driver + +The LM3697 11-bit LED driver provides high- +performance backlight dimming for 1, 2, or 3 series +LED strings while delivering up to 90% efficiency. + +This device is suitable for Display and Keypad Lighting + +Required properties: + - compatible: + "ti,lm3967" + - reg : I2C slave address + - #address-cells : 1 + - #size-cells : 0 + +Optional properties: + - enable-gpios : gpio pin to enable/disable the device. + - vled-supply : LED supply + +Required child properties: + - reg : 0 - LED is Controlled by bank A + 1 - LED is Controlled by bank B + - led-sources - Indicates which HVLED string is associated to which + control bank. The HVLED string cannot be associated with + two control banks. This property is an array of 3 and + all positions in the array must be populated. + Additional information is contained + in Documentation/devicetree/bindings/leds/common.txt + 0 - End of array if all 3 LEDs are not declared for a + single control bank. + 1 - HVLED 1 string + 2 - HVLED 2 string + 3 - HVLED 3 string + +Optional child properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +HVLED string 1 and 2 controlled by control bank A and HVLED string controlled by +control bank B. + +led-controller@36 { + compatible = "ti,lm3967"; + reg = <0x36>; + #address-cells = <1>; + #size-cells = <0>; + + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + vled-supply = <&vbatt>; + + led@0 { + reg = <0>; + led-sources = <0x1 0x2 0x0>; + label = "white:first_backlight_cluster"; + linux,default-trigger = "backlight"; + }; + + led@1 { + reg = <1>; + led-sources = <0x3 0x0 0x0>; + label = "white:second_backlight_cluster"; + linux,default-trigger = "backlight"; + }; +} + +All HVLED strings controlled by control bank A + +led-controller@36 { + compatible = "ti,lm3967"; + reg = <0x36>; + #address-cells = <1>; + #size-cells = <0>; + + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + vled-supply = <&vbatt>; + + led@0 { + reg = <0>; + led-sources = <0x1 0x2 0x3>; + label = "white:backlight_cluster"; + linux,default-trigger = "backlight"; + }; +} + +For more product information please see the link below: +http://www.ti.com/lit/ds/symlink/lm3697.pdf -- 2.17.0.582.gccdcbd54c