From patchwork Thu Aug 16 17:20:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 144435 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp2336358ljj; Thu, 16 Aug 2018 10:21:18 -0700 (PDT) X-Google-Smtp-Source: AA+uWPwsx+vPulKagN6FL4jY0wI3SGATIHfFbf/ArYWj2eQMd8qLak+7VWffQv4JistzUn2WTsm4 X-Received: by 2002:a63:24c:: with SMTP id 73-v6mr30481577pgc.252.1534440078723; Thu, 16 Aug 2018 10:21:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1534440078; cv=none; d=google.com; s=arc-20160816; b=PFCgsNV1OYPH8cKafb2AWkdV+19tACVes7BhdqPWwdJTEO4bnLdX4ScEzQcJd2uuQm N41zPEU7F4lpBlJKPyk2EYy/6F8oQ3twDH6A+TJ6TotOpjCsZMyMY/j5XH/wDj9bzNiC JcYdg6oehtqEZ8RFY2Nl3jBhmSOnNCy8Z+UsnLqs827zH1sUtgXz0o199Zn7p7JI9ayo gAi0O+LYrxkBl0ngBAwz5qcMgTPFc/ENLaYNlHbs9IeJpRA3NC5GSgEdWzUbz320Jb49 wozl4CegMBgxvgEdiYDrnIL5gxl8+qg+oWcswnM+0riYTlNfibcm1utJcIACks3bCtt1 dxlA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:subject:cc :to:from:dkim-signature:arc-authentication-results; bh=rGAAfUuc5oY3+u/fQpP0y5hlhpmjfZb7aVj9CiI8p8c=; b=NZlM3Pl5aDGL4H/3yU1ZR2PBvXu6t9/EeMFnq8Ix1mvQF71m96BSwFQylXenvwPWrW O1VXUBdVczJBwIpidQCo3HQWjqVf5fn1lfK/vteU3rqS3v8eUHEpoS1aerg3yFFyywmY qH2W4/ejpPOvaObZ28nT6Oijbt/84P7Tc9xHk3jrSkVjQQkox5idj4NzSpgaqT1pQQ30 nleo5oqBEA1SZVkknzz6fgHmw0QLKhcUOCOKo+PSOy/Pe0vo2KCCsUpUurWadPkey4GP sYe0uV9+qjB7yVCYkofrIgPto2SL6tXzzuqmILK/LIyjBDIWF/izEqqc0DeefMhn/8Z2 U3oA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=tXaULq6z; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e9-v6si26465619pgj.70.2018.08.16.10.21.18; Thu, 16 Aug 2018 10:21:18 -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=tXaULq6z; 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 S1728268AbeHPUVB (ORCPT + 32 others); Thu, 16 Aug 2018 16:21:01 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:48240 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725969AbeHPUVB (ORCPT ); Thu, 16 Aug 2018 16:21:01 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id w7GHL8fj034066; Thu, 16 Aug 2018 12:21:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1534440068; bh=rGAAfUuc5oY3+u/fQpP0y5hlhpmjfZb7aVj9CiI8p8c=; h=From:To:CC:Subject:Date; b=tXaULq6zEgJ9SkouWm4pX0Ydf4crpZ1rLcZzZnS+2pw4I94hm+p2AHOGOUkEiF4ja sEh9OLgHmcAb+JA9e5S+vcxd72ta3JKx4nxm+toft8vMVSqQVhFfH1NHO7BftDfwTC nKsdQY0fSFGZCmr55e9Be9R0SIcvFmMRowOF9bnc= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id w7GHL8bb018053; Thu, 16 Aug 2018 12:21:08 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Thu, 16 Aug 2018 12:21:08 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Thu, 16 Aug 2018 12:21:08 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id w7GHL8wO006456; Thu, 16 Aug 2018 12:21:08 -0500 Received: from localhost (a0272616local-lt.dhcp.ti.com [172.22.174.92]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id w7GHL7x00804; Thu, 16 Aug 2018 12:21:08 -0500 (CDT) From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v4 1/2] dt-bindings: leds: Add bindings for lm3697 driver Date: Thu, 16 Aug 2018 12:20:57 -0500 Message-ID: <20180816172058.31700-1-dmurphy@ti.com> X-Mailer: git-send-email 2.12.2 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 device tree bindings for the lm3697 LED driver for backlighting and display. Signed-off-by: Dan Murphy --- v4 - Removed HVLED definition in favor of HVLED place definition - https://lore.kernel.org/patchwork/patch/974812/ 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 | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3697.txt -- 2.17.0.582.gccdcbd54c diff --git a/Documentation/devicetree/bindings/leds/leds-lm3697.txt b/Documentation/devicetree/bindings/leds/leds-lm3697.txt new file mode 100644 index 000000000000..bcd67d53c889 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt @@ -0,0 +1,86 @@ +* 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. Each element in the array is associated + with a specific HVLED string. Element 0 is HVLED1, + element 1 is HVLED2 and element 2 HVLED3. + Additional information is contained + in Documentation/devicetree/bindings/leds/common.txt + 0 - HVLED is not active in this control bank + 1 - HVLED string is controlled by this control bank + +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 = <1 0 1>; + label = "white:first_backlight_cluster"; + linux,default-trigger = "backlight"; + }; + + led@1 { + reg = <1>; + led-sources = <0 1 0>; + 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 = <1 1 1>; + 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