From patchwork Thu Mar 12 15:45:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Anaszewski X-Patchwork-Id: 5996741 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F18899F318 for ; Thu, 12 Mar 2015 15:49:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 151422035B for ; Thu, 12 Mar 2015 15:49:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1090F20266 for ; Thu, 12 Mar 2015 15:49:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030260AbbCLPqQ (ORCPT ); Thu, 12 Mar 2015 11:46:16 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:62148 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932082AbbCLPqC (ORCPT ); Thu, 12 Mar 2015 11:46:02 -0400 Received: from epcpsbgm2.samsung.com (epcpsbgm2 [203.254.230.27]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NL300IXUVSOG270@mailout2.samsung.com>; Fri, 13 Mar 2015 00:46:00 +0900 (KST) X-AuditID: cbfee61b-f79d76d0000024d6-36-5501b4b8441d Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 88.9D.09430.8B4B1055; Fri, 13 Mar 2015 00:46:00 +0900 (KST) Received: from AMDC2362.DIGITAL.local ([106.120.53.23]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NL300DC9VRGU950@mmp2.samsung.com>; Fri, 13 Mar 2015 00:46:00 +0900 (KST) From: Jacek Anaszewski To: linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: kyungmin.park@samsung.com, pavel@ucw.cz, cooloney@gmail.com, rpurdie@rpsys.net, sakari.ailus@iki.fi, s.nawrocki@samsung.com, Jacek Anaszewski , Andrzej Hajda , Lee Jones , Chanwoo Choi Subject: [PATCH/RFC v13 04/13] DT: Add documentation for the mfd Maxim max77693 Date: Thu, 12 Mar 2015 16:45:05 +0100 Message-id: <1426175114-14876-5-git-send-email-j.anaszewski@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1426175114-14876-1-git-send-email-j.anaszewski@samsung.com> References: <1426175114-14876-1-git-send-email-j.anaszewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPLMWRmVeSWpSXmKPExsVy+t9jQd0dWxhDDSZv07e4te4cq8XRnROZ LK5/ec5qMf8IkNt79TmjxdmmN+wW978eZbS4vGsOm8XWN+sYLXo2bGW1uHvqKJvF7l1PWS0O v2lntTizfyWbA5/Hzll32T0Of13I4nHn2h42jz3zf7B69G1ZxeixYvV3do/Pm+QC2KO4bFJS czLLUov07RK4Mua8fctYsFim4sY04wbGDeJdjJwcEgImEteW3GSHsMUkLtxbz9bFyMUhJDCd UeLf95fsEE47k0Tf6k6wKjYBQ4mfL14zgdgiAuUSe+48BitiFljIJLF3bitzFyMHh7CAv0Tr lXyQGhYBVYllLVMZQWxeAQ+JN1vfsoCUSAgoSMyZZAMS5hTwlOi+/wGsRAioZPKGv+wTGHkX MDKsYhRNLUguKE5KzzXSK07MLS7NS9dLzs/dxAgO1mfSOxhXNVgcYhTgYFTi4b3wnSFUiDWx rLgy9xCjBAezkgiv6XzGUCHelMTKqtSi/Pii0pzU4kOM0hwsSuK8SvZtIUIC6YklqdmpqQWp RTBZJg5OqQZG+VvaOzc/m777UoX2kTV3l5d8N4jP6/h2bLnDVvef8UccTbJNrnyaF3vEX1aK 6bLy38h3BiKc1XMvhG2LMnjgYBZud4AxTWqT4r26158We+uzlCh11+5cw3dHsZ5vVbdTy8sV zz3PxN5euyZD8MSu7HnMCx30pnC9YpobEH1/ZcSi5ldX993focRSnJFoqMVcVJwIAMieqF9S AgAA Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@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 This patch adds device tree binding documentation for the flash cell of the Maxim max77693 multifunctional device. Signed-off-by: Jacek Anaszewski Signed-off-by: Andrzej Hajda Acked-by: Kyungmin Park Cc: Lee Jones Cc: Chanwoo Choi Cc: Bryan Wu Cc: Richard Purdie Acked-by: Pavel Machek --- Documentation/devicetree/bindings/mfd/max77693.txt | 61 ++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt index 38e6440..15c546e 100644 --- a/Documentation/devicetree/bindings/mfd/max77693.txt +++ b/Documentation/devicetree/bindings/mfd/max77693.txt @@ -76,7 +76,53 @@ Optional properties: Valid values: 4300000, 4700000, 4800000, 4900000 Default: 4300000 +- led : the LED submodule device node + +There are two LED outputs available - FLED1 and FLED2. Each of them can +control a separate LED or they can be connected together to double +the maximum current for a single connected LED. One LED is represented +by one child node. + +Required properties: +- compatible : Must be "maxim,max77693-led". + +Optional properties: +- maxim,trigger-type : Flash trigger type. + Possible trigger types: + LEDS_TRIG_TYPE_EDGE (0) - Rising edge of the signal triggers + the flash, + LEDS_TRIG_TYPE_LEVEL (1) - Strobe pulse length controls duration + of the flash. +- maxim,boost-mode : + In boost mode the device can produce up to 1.2A of total current + on both outputs. The maximum current on each output is reduced + to 625mA then. If not enabled explicitly, boost setting defaults to + LEDS_BOOST_FIXED in case both current sources are used. + Possible values: + LEDS_BOOST_OFF (0) - no boost, + LEDS_BOOST_ADAPTIVE (1) - adaptive mode, + LEDS_BOOST_FIXED (2) - fixed mode. +- maxim,boost-mvout : Output voltage of the boost module in millivolts. +- maxim,mvsys-min : Low input voltage level in millivolts. Flash is not fired + if chip estimates that system voltage could drop below this level due + to flash power consumption. + +Required properties of the LED child node: +- led-sources : see Documentation/devicetree/bindings/leds/common.txt; + device current output identifiers: 0 - FLED1, 1 - FLED2 + +Optional properties of the LED child node: +- label : see Documentation/devicetree/bindings/leds/common.txt +- max-microamp : see Documentation/devicetree/bindings/leds/common.txt + Range: 15625 - 250000 +- flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt + Range: 15625 - 1000000 +- flash-timeout-us : see Documentation/devicetree/bindings/leds/common.txt + Range: 62500 - 1000000 + Example: +#include + max77693@66 { compatible = "maxim,max77693"; reg = <0x66>; @@ -117,5 +163,20 @@ Example: maxim,thermal-regulation-celsius = <75>; maxim,battery-overcurrent-microamp = <3000000>; maxim,charge-input-threshold-microvolt = <4300000>; + + led { + compatible = "maxim,max77693-led"; + maxim,trigger-type = ; + maxim,boost-mode = ; + maxim,boost-mvout = <5000>; + maxim,mvsys-min = <2400>; + + camera_flash: flash-led { + label = "max77693-flash"; + led-sources = <0>, <1>; + max-microamp = <500000>; + flash-max-microamp = <1250000>; + flash-timeout-us = <1000000>; + }; }; };