From patchwork Thu Mar 12 15:47:07 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bjorn Andersson X-Patchwork-Id: 5996621 Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 829C6BF910 for ; Thu, 12 Mar 2015 15:47:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AB151202DD for ; Thu, 12 Mar 2015 15:47:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD1ED20272 for ; Thu, 12 Mar 2015 15:47:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932279AbbCLPrT (ORCPT ); Thu, 12 Mar 2015 11:47:19 -0400 Received: from seldrel01.sonyericsson.com ([212.209.106.2]:1028 "EHLO seldrel01.sonyericsson.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030312AbbCLPrP (ORCPT ); Thu, 12 Mar 2015 11:47:15 -0400 From: Bjorn Andersson To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Bryan Wu , Richard Purdie , Grant Likely CC: Courtney Cavin , , , , Subject: [PATCH v4 1/2] leds: add DT binding for Qualcomm PM8941 WLED block Date: Thu, 12 Mar 2015 08:47:07 -0700 Message-ID: <1426175228-29208-1-git-send-email-bjorn.andersson@sonymobile.com> X-Mailer: git-send-email 1.8.2.2 MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Courtney Cavin This adds device tree binding documentation for the WLED ('White' LED) block on Qualcomm's PM8941 PMICs. Signed-off-by: Courtney Cavin Signed-off-by: Bjorn Andersson --- Changes since v3: - None Changes since v2: - None Changes since v1: - None .../devicetree/bindings/leds/leds-pm8941-wled.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt diff --git a/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt b/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt new file mode 100644 index 0000000..a85a964 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt @@ -0,0 +1,43 @@ +Binding for Qualcomm PM8941 WLED driver + +Required properties: +- compatible: should be "qcom,pm8941-wled" +- reg: slave address + +Optional properties: +- label: The label for this led + See Documentation/devicetree/bindings/leds/common.txt +- linux,default-trigger: Default trigger assigned to the LED + See Documentation/devicetree/bindings/leds/common.txt +- qcom,cs-out: bool; enable current sink output +- qcom,cabc: bool; enable content adaptive backlight control +- qcom,ext-gen: bool; use externally generated modulator signal to dim +- qcom,current-limit: mA; per-string current limit; value from 0 to 25 + default: 20mA +- qcom,current-boost-limit: mA; boost current limit; one of: + 105, 385, 525, 805, 980, 1260, 1400, 1680 + default: 805mA +- qcom,switching-freq: kHz; switching frequency; one of: + 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371, + 1600, 1920, 2400, 3200, 4800, 9600, + default: 1600kHz +- qcom,ovp: V; Over-voltage protection limit; one of: + 27, 29, 32, 35 + default: 29V +- qcom,num-strings: #; number of led strings attached; value from 1 to 3 + default: 2 + +Example: + +pm8941-wled@d800 { + compatible = "qcom,pm8941-wled"; + reg = <0xd800>; + label = "backlight"; + + qcom,cs-out; + qcom,current-limit = <20>; + qcom,current-boost-limit = <805>; + qcom,switching-freq = <1600>; + qcom,ovp = <29>; + qcom,num-strings = <2>; +};